mstempin@com1.fr
bon@elektron.ikp.physik.tu-darmstadt.de
nelsonjm@macpod.neta
-ned@bike-nomad.com
\ No newline at end of file
+ned@bike-nomad.com
+csamuelson@swingpal.com
SOURCES_LIB=stlink-common.c stlink-usb.c stlink-sg.c uglylogging.c
OBJS_LIB=$(SOURCES_LIB:.c=.o)
TEST_PROGRAMS=test_usb test_sg
-LDFLAGS=-lusb-1.0 -L. -lstlink
+LDFLAGS=-L. -lstlink -lusb-1.0
CFLAGS+=-g
CFLAGS+=-DDEBUG=1
. flash tool
- . test support for reading
- . writing is not working. refer to the specs, may have changed for stm32l
- . then test with blink_flash example
- . then update the documentation
+ . improve flash writing, still use word fast write... too slow
. documentation
. make README points to doc/tutorial
\newpage
-
-\section{Building and running a program}
+\section{Building and running a program in SRAM}
+\paragraph{}
A simple LED blinking example is provided in the example directory. It is built using:\\
\begin{small}
\begin{lstlisting}[frame=tb]
All the LEDs on the board should now be blinking in time (those leds are near the user and reset buttons).
\newpage
-\section{Reading and writing to flash}
+\section{Building and flashing a program}
\paragraph{}
-Flash memory reading and writing is done by a separate tool. A binary running in flash is assumed to
-be linked against address 0x8000000. The flash tool is then used as shown below:\\
+FLASH memory reading and writing is done by a separate tool, as shown below:\\
\begin{small}
\begin{lstlisting}[frame=tb]
# change to the flash tool directory
\end{lstlisting}
\end{small}
+\paragraph{}
+A LED blinking example is provided:\\
+\begin{small}
+\begin{lstlisting}[frame=tb]
+# build the example, resulting in blink.bin
+$> cd stlink.git/example/blink_flash
+$> PATH=$TOOLCHAIN_PATH:$PATH make CONFIG_STM32L_DISCOVERY=1
+
+# write blink.bin into FLASH
+$> sudo ./flash write blink.bin 0x08000000
+\end{lstlisting}
+\end{small}
+
+\paragraph{}
+Upon reset, the board LEDs should be blinking.
+
+\newpage
+\section{Building and installing the CHIBIOS kernel}
+\paragraph{}
+CHIBIOS is an open source RTOS. More information can be found on the project website:
+\begin{center}
+http://www.chibios.org/dokuwiki/doku.php
+\end{center}
+
+\paragraph{}
+It supports several boards, including the STM32L DISCOVERY kit:
+\begin{center}
+http://www.chibios.org/dokuwiki/doku.php?id=chibios:articles:stm32l\_discovery
+\end{center}
+
+\paragraph{}
+The installation procedure is detailed below:\\
+\begin{small}
+\begin{lstlisting}[frame=tb]
+# checkout and build CHIBIOS for STM32L DISCOVERY kits
+svn checkout https://chibios.svn.sourceforge.net/svnroot/chibios/trunk
+cd chibios/trunk/demos/ARMCM3-STM32L152-DISCOVERY
+PATH=$TOOLCHAIN_PATH:$PATH make
+
+# flash the image into STM32L
+sudo ./flash write build/ch.bin 0x08000000
+\end{lstlisting}
+\end{small}
\newpage
\section{Notes}
CC=arm-none-eabi-gcc
OBJCOPY=arm-none-eabi-objcopy
-CFLAGS=-O2 -mlittle-endian -mthumb
-
-CFLAGS=-g -O2 -mlittle-endian -mthumb
+CFLAGS=-O3 -mlittle-endian -mthumb
ifeq ($(CONFIG_STM32L_DISCOVERY), 1)
- CFLAGS+=-mcpu=cortex-m3 -DCONFIG_STM32L_DISCOVERY
+ CFLAGS+=-mcpu=cortex-m3 -DCONFIG_STM32L_DISCOVERY=1
else ifeq ($(CONFIG_STM32VL_DISCOVERY), 1)
CFLAGS+=-mcpu=cortex-m3 -DCONFIG_STM32VL_DISCOVERY=1
else ifeq ($(CONFIG_STM32F4_DISCOVERY), 1)
else
$(error "must specify CONFIG_ for board!")
endif
- CFLAGS+=-ffreestanding -nostdlib -nostdinc
+CFLAGS+=-ffreestanding -nostdlib -nostdinc
# to run from FLASH
CFLAGS+=-Wl,-T,stm32_flash.ld
+# stm32l_discovery lib
+CFLAGS+=-I../libstm32l_discovery/inc
+CFLAGS+=-I../libstm32l_discovery/inc/base
+CFLAGS+=-I../libstm32l_discovery/inc/core_support
+CFLAGS+=-I../libstm32l_discovery/inc/device_support
+
all: $(BIN_IMAGE)
$(BIN_IMAGE): $(EXECUTABLE)
$(OBJCOPY) -O binary $^ $@
-$(EXECUTABLE): main.c startup_stm32l1xx_md.s
- $(CC) $(CFLAGS) $^ -o $@
+$(EXECUTABLE): main.c system_stm32l1xx.c startup_stm32l1xx_md.s
+ $(CC) $(CFLAGS) $^ -o $@ -L../libstm32l_discovery/build -lstm32l_discovery
clean:
rm -rf $(EXECUTABLE)
--- /dev/null
+ /**\r
+ ******************************************************************************\r
+ * @file discover_board.h\r
+ * @author Microcontroller Division\r
+ * @version V1.0.2\r
+ * @date September-2011\r
+ * @brief Input/Output defines\r
+ ******************************************************************************\r
+ * @copy\r
+ *\r
+ * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS\r
+ * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE\r
+ * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY\r
+ * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING\r
+ * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE\r
+ * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.\r
+ *\r
+ * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>\r
+ */\r
+\r
+/* Define to prevent recursive inclusion -------------------------------------*/\r
+\r
+#ifndef __DISCOVER_BOARD_H\r
+#define __DISCOVER_BOARD_H\r
+\r
+/* Includes ------------------------------------------------------------------*/\r
+/* #include "stm32l1xx.h" */\r
+\r
+#define bool _Bool\r
+#define FALSE 0\r
+#define TRUE !FALSE\r
+\r
+/* MACROs for SET, RESET or TOGGLE Output port */\r
+\r
+#define GPIO_HIGH(a,b) a->BSRRL = b\r
+#define GPIO_LOW(a,b) a->BSRRH = b\r
+#define GPIO_TOGGLE(a,b) a->ODR ^= b \r
+\r
+#define USERBUTTON_GPIO_PORT GPIOA\r
+#define USERBUTTON_GPIO_PIN GPIO_Pin_0\r
+#define USERBUTTON_GPIO_CLK RCC_AHBPeriph_GPIOA\r
+\r
+#define LD_GPIO_PORT GPIOB\r
+#define LD_GREEN_GPIO_PIN GPIO_Pin_7\r
+#define LD_BLUE_GPIO_PIN GPIO_Pin_6\r
+#define LD_GPIO_PORT_CLK RCC_AHBPeriph_GPIOB\r
+\r
+#define CTN_GPIO_PORT GPIOC\r
+#define CTN_CNTEN_GPIO_PIN GPIO_Pin_13\r
+#define CTN_GPIO_CLK RCC_AHBPeriph_GPIOC\r
+\r
+#define WAKEUP_GPIO_PORT GPIOA\r
+\r
+#define IDD_MEASURE_PORT GPIOA\r
+#define IDD_MEASURE GPIO_Pin_4\r
+\r
+\r
+#endif\r
+\r
+\r
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/\r
-/* missing type */
+/* base headers */
+#include "stdint.h"
-typedef unsigned int uint32_t;
+/* libstm32l_discovery headers */
+#include "stm32l1xx_gpio.h"
+#include "stm32l1xx_adc.h"
+#include "stm32l1xx_lcd.h"
+#include "stm32l1xx_rcc.h"
+#include "stm32l1xx_rtc.h"
+#include "stm32l1xx_exti.h"
+#include "stm32l1xx_pwr.h"
+#include "stm32l1xx_flash.h"
+#include "stm32l1xx_syscfg.h"
+#include "stm32l1xx_dbgmcu.h"
+/* board specific macros */
+#include "discover_board.h"
-/* hardware configuration */
-
-#define CONFIG_STM32L_DISCOVERY 1
-#define CONFIG_STM32VL_DISCOVERY 0
+/* hardware configuration */
#if CONFIG_STM32VL_DISCOVERY
#elif CONFIG_STM32L_DISCOVERY
-# define GPIOB 0x40020400 /* port B */
# define GPIOB_MODER (GPIOB + 0x00) /* port mode register */
# define GPIOB_ODR (GPIOB + 0x14) /* port output data register */
static inline void switch_leds_on(void)
{
- *(volatile uint32_t*)GPIOB_ODR = LED_BLUE | LED_GREEN;
+ GPIO_HIGH(LD_GPIO_PORT, LD_GREEN_GPIO_PIN);
+ GPIO_HIGH(LD_GPIO_PORT, LD_BLUE_GPIO_PIN);
}
static inline void switch_leds_off(void)
{
- *(volatile uint32_t*)GPIOB_ODR = 0;
+ GPIO_LOW(LD_GPIO_PORT, LD_GREEN_GPIO_PIN);
+ GPIO_LOW(LD_GPIO_PORT, LD_BLUE_GPIO_PIN);
}
#endif /* otherwise, error */
#define delay() \
do { \
- register unsigned int i; \
+ volatile unsigned int i; \
for (i = 0; i < 1000000; ++i) \
__asm__ __volatile__ ("nop\n\t":::"memory"); \
} while (0)
+
+static void RCC_Configuration(void)
+{
+ /* Enable HSI Clock */
+ RCC_HSICmd(ENABLE);
+
+ /*!< Wait till HSI is ready */
+ while (RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET)
+ {}
+
+ RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);
+
+ RCC_MSIRangeConfig(RCC_MSIRange_6);
+
+ RCC_HSEConfig(RCC_HSE_OFF);
+ if(RCC_GetFlagStatus(RCC_FLAG_HSERDY) != RESET )
+ {
+ while(1);
+ }
+}
+
+
+static void RTC_Configuration(void)
+{
+ /* Allow access to the RTC */
+ PWR_RTCAccessCmd(ENABLE);
+
+ /* Reset Backup Domain */
+ RCC_RTCResetCmd(ENABLE);
+ RCC_RTCResetCmd(DISABLE);
+
+ /* LSE Enable */
+ RCC_LSEConfig(RCC_LSE_ON);
+
+ /* Wait till LSE is ready */
+ while (RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET)
+ {}
+
+ RCC_RTCCLKCmd(ENABLE);
+
+ /* LCD Clock Source Selection */
+ RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
+
+}
+
void main(void)
{
- setup_leds();
+ static RCC_ClocksTypeDef RCC_Clocks;
+ static GPIO_InitTypeDef GPIO_InitStructure;
+
+ /* Configure Clocks for Application need */
+ RCC_Configuration();
+
+ /* Configure RTC Clocks */
+ RTC_Configuration();
+
+ /* Set internal voltage regulator to 1.8V */
+ PWR_VoltageScalingConfig(PWR_VoltageScaling_Range1);
+
+ /* Wait Until the Voltage Regulator is ready */
+ while (PWR_GetFlagStatus(PWR_FLAG_VOS) != RESET) ;
+
+ /* configure gpios */
+
+ /* Enable GPIOs clock */
+ RCC_AHBPeriphClockCmd(LD_GPIO_PORT_CLK, ENABLE);
+
+ /* Configure the GPIO_LED pins LD3 & LD4*/
+ GPIO_InitStructure.GPIO_Pin = LD_GREEN_GPIO_PIN | LD_BLUE_GPIO_PIN;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
+ GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
+ GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
+ GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
+ GPIO_Init(LD_GPIO_PORT, &GPIO_InitStructure);
+ GPIO_LOW(LD_GPIO_PORT, LD_GREEN_GPIO_PIN);
+ GPIO_LOW(LD_GPIO_PORT, LD_BLUE_GPIO_PIN);
while (1)
{
.weak Reset_Handler\r
.type Reset_Handler, %function\r
Reset_Handler:\r
-\r
/* Copy the data segment initializers from flash to SRAM */ \r
movs r1, #0\r
b LoopCopyDataInit\r
bcc FillZerobss\r
/* Call the clock system intitialization function.*/\r
/* let main do the system initialization */\r
-/* bl SystemInit */\r
+ bl SystemInit\r
/* Call the application's entry point.*/\r
bl main\r
bx lr\r
--- /dev/null
+EXECUTABLE=dac.elf
+BIN_IMAGE=dac.bin
+
+CC=arm-none-eabi-gcc
+OBJCOPY=arm-none-eabi-objcopy
+
+CFLAGS=-O3 -mlittle-endian -mthumb
+ifeq ($(CONFIG_STM32L_DISCOVERY), 1)
+ CFLAGS+=-mcpu=cortex-m3 -DCONFIG_STM32L_DISCOVERY=1
+else ifeq ($(CONFIG_STM32VL_DISCOVERY), 1)
+ CFLAGS+=-mcpu=cortex-m3 -DCONFIG_STM32VL_DISCOVERY=1
+else ifeq ($(CONFIG_STM32F4_DISCOVERY), 1)
+ CFLAGS+=-mcpu=cortex-m4 -DCONFIG_STM32F4_DISCOVERY=1
+else
+$(error "must specify CONFIG_ for board!")
+endif
+CFLAGS+=-ffreestanding -nostdlib -nostdinc
+
+# to run from FLASH
+CFLAGS+=-Wl,-T,stm32_flash.ld
+
+# stm32l_discovery lib
+CFLAGS+=-I../libstm32l_discovery/inc
+CFLAGS+=-I../libstm32l_discovery/inc/base
+CFLAGS+=-I../libstm32l_discovery/inc/core_support
+CFLAGS+=-I../libstm32l_discovery/inc/device_support
+
+all: $(BIN_IMAGE)
+
+$(BIN_IMAGE): $(EXECUTABLE)
+ $(OBJCOPY) -O binary $^ $@
+
+$(EXECUTABLE): main.c system_stm32l1xx.c startup_stm32l1xx_md.s
+ $(CC) $(CFLAGS) $^ -o $@ -L../libstm32l_discovery/build -lstm32l_discovery
+
+clean:
+ rm -rf $(EXECUTABLE)
+ rm -rf $(BIN_IMAGE)
+
+write: all
+ sudo ../../flash/flash write ./dac.bin 0x08000000
+
+.PHONY: all clean write
--- /dev/null
+ /**\r
+ ******************************************************************************\r
+ * @file discover_board.h\r
+ * @author Microcontroller Division\r
+ * @version V1.0.2\r
+ * @date September-2011\r
+ * @brief Input/Output defines\r
+ ******************************************************************************\r
+ * @copy\r
+ *\r
+ * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS\r
+ * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE\r
+ * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY\r
+ * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING\r
+ * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE\r
+ * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.\r
+ *\r
+ * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>\r
+ */\r
+\r
+/* Define to prevent recursive inclusion -------------------------------------*/\r
+\r
+#ifndef __DISCOVER_BOARD_H\r
+#define __DISCOVER_BOARD_H\r
+\r
+/* Includes ------------------------------------------------------------------*/\r
+/* #include "stm32l1xx.h" */\r
+\r
+#define bool _Bool\r
+#define FALSE 0\r
+#define TRUE !FALSE\r
+\r
+/* MACROs for SET, RESET or TOGGLE Output port */\r
+\r
+#define GPIO_HIGH(a,b) a->BSRRL = b\r
+#define GPIO_LOW(a,b) a->BSRRH = b\r
+#define GPIO_TOGGLE(a,b) a->ODR ^= b \r
+\r
+#define USERBUTTON_GPIO_PORT GPIOA\r
+#define USERBUTTON_GPIO_PIN GPIO_Pin_0\r
+#define USERBUTTON_GPIO_CLK RCC_AHBPeriph_GPIOA\r
+\r
+#define LD_GPIO_PORT GPIOB\r
+#define LD_GREEN_GPIO_PIN GPIO_Pin_7\r
+#define LD_BLUE_GPIO_PIN GPIO_Pin_6\r
+#define LD_GPIO_PORT_CLK RCC_AHBPeriph_GPIOB\r
+\r
+#define CTN_GPIO_PORT GPIOC\r
+#define CTN_CNTEN_GPIO_PIN GPIO_Pin_13\r
+#define CTN_GPIO_CLK RCC_AHBPeriph_GPIOC\r
+\r
+#define WAKEUP_GPIO_PORT GPIOA\r
+\r
+#define IDD_MEASURE_PORT GPIOA\r
+#define IDD_MEASURE GPIO_Pin_4\r
+\r
+\r
+#endif\r
+\r
+\r
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/\r
--- /dev/null
+/* base headers */
+#include "stdint.h"
+
+/* libstm32l_discovery headers */
+#include "stm32l1xx_gpio.h"
+#include "stm32l1xx_adc.h"
+#include "stm32l1xx_dac.h"
+#include "stm32l1xx_lcd.h"
+#include "stm32l1xx_rcc.h"
+#include "stm32l1xx_rtc.h"
+#include "stm32l1xx_exti.h"
+#include "stm32l1xx_pwr.h"
+#include "stm32l1xx_flash.h"
+#include "stm32l1xx_syscfg.h"
+#include "stm32l1xx_dbgmcu.h"
+
+/* board specific macros */
+#include "discover_board.h"
+
+
+/* hardware configuration */
+
+#if CONFIG_STM32VL_DISCOVERY
+
+# define GPIOC 0x40011000 /* port C */
+# define GPIOC_CRH (GPIOC + 0x04) /* port configuration register high */
+# define GPIOC_ODR (GPIOC + 0x0c) /* port output data register */
+
+# define LED_BLUE (1 << 8) /* port C, pin 8 */
+# define LED_GREEN (1 << 9) /* port C, pin 9 */
+
+static inline void setup_leds(void)
+{
+ *(volatile uint32_t*)GPIOC_CRH = 0x44444411;
+}
+
+static inline void switch_leds_on(void)
+{
+ *(volatile uint32_t*)GPIOC_ODR = LED_BLUE | LED_GREEN;
+}
+
+static inline void switch_leds_off(void)
+{
+ *(volatile uint32_t*)GPIOC_ODR = 0;
+}
+
+#elif CONFIG_STM32L_DISCOVERY
+
+# define GPIOB_MODER (GPIOB + 0x00) /* port mode register */
+# define GPIOB_ODR (GPIOB + 0x14) /* port output data register */
+
+# define LED_BLUE (1 << 6) /* port B, pin 6 */
+# define LED_GREEN (1 << 7) /* port B, pin 7 */
+
+static inline void setup_leds(void)
+{
+ /* configure port 6 and 7 as output */
+ *(volatile uint32_t*)GPIOB_MODER |= (1 << (7 * 2)) | (1 << (6 * 2));
+}
+
+static inline void switch_leds_on(void)
+{
+ GPIO_HIGH(LD_GPIO_PORT, LD_GREEN_GPIO_PIN);
+ GPIO_HIGH(LD_GPIO_PORT, LD_BLUE_GPIO_PIN);
+}
+
+static inline void switch_leds_off(void)
+{
+ GPIO_LOW(LD_GPIO_PORT, LD_GREEN_GPIO_PIN);
+ GPIO_LOW(LD_GPIO_PORT, LD_BLUE_GPIO_PIN);
+}
+
+#endif /* otherwise, error */
+
+
+#define delay() \
+do { \
+ volatile unsigned int i; \
+ for (i = 0; i < 1000000; ++i) \
+ __asm__ __volatile__ ("nop\n\t":::"memory"); \
+} while (0)
+
+
+static void RCC_Configuration(void)
+{
+ /* HSI is 16mhz RC clock directly fed to SYSCLK (rm00038, figure 9) */
+
+ /* enable the HSI clock (high speed internal) */
+ RCC_HSICmd(ENABLE);
+
+ /* wail til HSI ready */
+ while (RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET)
+ {}
+
+ /* at startup, SYSCLK driven by MSI. set to HSI */
+ RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);
+
+ /* set MSI to 4mhz */
+ RCC_MSIRangeConfig(RCC_MSIRange_6);
+
+ /* turn HSE off */
+ RCC_HSEConfig(RCC_HSE_OFF);
+ if (RCC_GetFlagStatus(RCC_FLAG_HSERDY) != RESET)
+ {
+ while (1) ;
+ }
+}
+
+
+static void RTC_Configuration(void)
+{
+ /* Allow access to the RTC */
+ PWR_RTCAccessCmd(ENABLE);
+
+ /* Reset Backup Domain */
+ RCC_RTCResetCmd(ENABLE);
+ RCC_RTCResetCmd(DISABLE);
+
+ /* LSE Enable */
+ RCC_LSEConfig(RCC_LSE_ON);
+
+ /* Wait till LSE is ready */
+ while (RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET)
+ {}
+
+ RCC_RTCCLKCmd(ENABLE);
+
+ /* LCD Clock Source Selection */
+ RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
+
+}
+
+static void setup_dac1(void)
+{
+ /* see 10.2 notes */
+
+ static GPIO_InitTypeDef GPIO_InitStructure;
+ static DAC_InitTypeDef DAC_InitStructure;
+
+ /* DAC clock path:
+ HSI (16mhz) -> SYSCLK -> HCLK(/1) -> PCLK1(/1)
+ */
+
+ /* set the AHB clock (HCLK) prescaler to 1 */
+ RCC_HCLKConfig(RCC_SYSCLK_Div1);
+
+ /* set the low speed APB clock (APB1, ie. PCLK1) prescaler to 1 */
+ RCC_PCLK1Config(RCC_HCLK_Div1);
+
+ /* enable DAC APB1 clock */
+ /* signal connections: HSI(16mhz) -> SYSCLK -> AHB */
+ RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE);
+
+ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4; /* GPIO_Pin_5 for channel 2 */
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
+ GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
+ GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
+ GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
+ GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+ DAC_StructInit(&DAC_InitStructure);
+ DAC_InitStructure.DAC_Trigger = DAC_Trigger_None;
+#if 0 /* triangle waveform generation */
+ DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_Triangle;
+ DAC_InitStructure.DAC_LFSRUnmask_TriangleAmplitude = DAC_TriangleAmplitude_1;
+#else
+ DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_None;
+ DAC_InitStructure.DAC_LFSRUnmask_TriangleAmplitude = DAC_LFSRUnmask_Bit0;
+#endif
+ DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Enable;
+ DAC_Init(DAC_Channel_1, &DAC_InitStructure);
+
+ /* enable dac channel */
+ DAC_Cmd(DAC_Channel_1, ENABLE);
+}
+
+static inline void set_dac1_mv(unsigned int mv)
+{
+ /* mv the millivolts */
+
+ /* vref in millivolts */
+ /* #define CONFIG_VREF 5000 */
+#define CONFIG_VREF 3000
+
+ /* resolution in bits */
+#define CONFIG_DAC_RES 12
+
+ const uint16_t n = (mv * (1 << (CONFIG_DAC_RES - 1))) / CONFIG_VREF;
+ DAC_SetChannel1Data(DAC_Align_12b_R, n);
+}
+
+void main(void)
+{
+ static RCC_ClocksTypeDef RCC_Clocks;
+ static GPIO_InitTypeDef GPIO_InitStructure;
+ static uint16_t dac_value;
+ static unsigned int led_state = 0;
+
+ /* Configure Clocks for Application need */
+ RCC_Configuration();
+
+ /* Configure RTC Clocks */
+ RTC_Configuration();
+
+#if 0
+ /* Set internal voltage regulator to 1.8v */
+ PWR_VoltageScalingConfig(PWR_VoltageScaling_Range1);
+ /* Wait Until the Voltage Regulator is ready */
+ while (PWR_GetFlagStatus(PWR_FLAG_VOS) != RESET) ;
+#endif
+
+ /* configure gpios */
+
+ /* Enable GPIOs clock */
+ RCC_AHBPeriphClockCmd(LD_GPIO_PORT_CLK, ENABLE);
+
+ /* Configure the GPIO_LED pins LD3 & LD4*/
+ GPIO_InitStructure.GPIO_Pin = LD_GREEN_GPIO_PIN | LD_BLUE_GPIO_PIN;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
+ GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
+ GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
+ GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
+ GPIO_Init(LD_GPIO_PORT, &GPIO_InitStructure);
+ GPIO_LOW(LD_GPIO_PORT, LD_GREEN_GPIO_PIN);
+ GPIO_LOW(LD_GPIO_PORT, LD_BLUE_GPIO_PIN);
+
+ setup_dac1();
+
+ dac_value = 0;
+
+ while (1)
+ {
+ DAC_SetChannel1Data(DAC_Align_12b_R, dac_value & 0xfff);
+ dac_value += 0x10;
+
+ if (led_state & 1) switch_leds_on();
+ else switch_leds_off();
+ led_state ^= 1;
+
+ delay();
+ }
+}
--- /dev/null
+/**\r
+ ******************************************************************************\r
+ * @file startup_stm32l1xx_md.s\r
+ * @author MCD Application Team\r
+ * @version V1.0.0\r
+ * @date 31-December-2010\r
+ * @brief STM32L1xx Ultra Low Power Medium-density Devices vector table for \r
+ * RIDE7 toolchain.\r
+ * This module performs:\r
+ * - Set the initial SP\r
+ * - Set the initial PC == Reset_Handler,\r
+ * - Set the vector table entries with the exceptions ISR address\r
+ * - Branches to main in the C library (which eventually\r
+ * calls main()).\r
+ * After Reset the Cortex-M3 processor is in Thread mode,\r
+ * priority is Privileged, and the Stack is set to Main.\r
+ *******************************************************************************\r
+ * @attention\r
+ *\r
+ * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS\r
+ * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE\r
+ * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY\r
+ * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING\r
+ * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE\r
+ * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.\r
+ *\r
+ * <h2><center>© COPYRIGHT 2010 STMicroelectronics</center></h2>\r
+ ******************************************************************************* \r
+ */\r
+ \r
+ .syntax unified\r
+ .cpu cortex-m3\r
+ .fpu softvfp\r
+ .thumb\r
+\r
+.global g_pfnVectors\r
+.global Default_Handler\r
+\r
+/* start address for the initialization values of the .data section. \r
+defined in linker script */\r
+.word _sidata\r
+/* start address for the .data section. defined in linker script */ \r
+.word _sdata\r
+/* end address for the .data section. defined in linker script */\r
+.word _edata\r
+/* start address for the .bss section. defined in linker script */\r
+.word _sbss\r
+/* end address for the .bss section. defined in linker script */\r
+.word _ebss\r
+\r
+.equ BootRAM, 0xF108F85F\r
+/**\r
+ * @brief This is the code that gets called when the processor first\r
+ * starts execution following a reset event. Only the absolutely\r
+ * necessary set is performed, after which the application\r
+ * supplied main() routine is called. \r
+ * @param None\r
+ * @retval : None\r
+*/\r
+\r
+ .section .text.Reset_Handler\r
+ .weak Reset_Handler\r
+ .type Reset_Handler, %function\r
+Reset_Handler:\r
+/* Copy the data segment initializers from flash to SRAM */ \r
+ movs r1, #0\r
+ b LoopCopyDataInit\r
+\r
+CopyDataInit:\r
+ ldr r3, =_sidata\r
+ ldr r3, [r3, r1]\r
+ str r3, [r0, r1]\r
+ adds r1, r1, #4\r
+ \r
+LoopCopyDataInit:\r
+ ldr r0, =_sdata\r
+ ldr r3, =_edata\r
+ adds r2, r0, r1\r
+ cmp r2, r3\r
+ bcc CopyDataInit\r
+ ldr r2, =_sbss\r
+ b LoopFillZerobss\r
+/* Zero fill the bss segment. */ \r
+FillZerobss:\r
+ movs r3, #0\r
+ str r3, [r2], #4\r
+ \r
+LoopFillZerobss:\r
+ ldr r3, = _ebss\r
+ cmp r2, r3\r
+ bcc FillZerobss\r
+/* Call the clock system intitialization function.*/\r
+/* let main do the system initialization */\r
+ bl SystemInit\r
+/* Call the application's entry point.*/\r
+ bl main\r
+ bx lr\r
+.size Reset_Handler, .-Reset_Handler\r
+\r
+/**\r
+ * @brief This is the code that gets called when the processor receives an \r
+ * unexpected interrupt. This simply enters an infinite loop, preserving\r
+ * the system state for examination by a debugger.\r
+ *\r
+ * @param None \r
+ * @retval None \r
+*/\r
+ .section .text.Default_Handler,"ax",%progbits\r
+Default_Handler:\r
+Infinite_Loop:\r
+ b Infinite_Loop\r
+ .size Default_Handler, .-Default_Handler\r
+/*******************************************************************************\r
+*\r
+* The minimal vector table for a Cortex M3. Note that the proper constructs\r
+* must be placed on this to ensure that it ends up at physical address\r
+* 0x0000.0000.\r
+*******************************************************************************/ \r
+ .section .isr_vector,"a",%progbits\r
+ .type g_pfnVectors, %object\r
+ .size g_pfnVectors, .-g_pfnVectors\r
+ \r
+ \r
+g_pfnVectors:\r
+ .word _estack\r
+ .word Reset_Handler\r
+ .word NMI_Handler\r
+ .word HardFault_Handler\r
+ .word MemManage_Handler\r
+ .word BusFault_Handler\r
+ .word UsageFault_Handler\r
+ .word 0\r
+ .word 0\r
+ .word 0\r
+ .word 0\r
+ .word SVC_Handler\r
+ .word DebugMon_Handler\r
+ .word 0\r
+ .word PendSV_Handler\r
+ .word SysTick_Handler\r
+ .word WWDG_IRQHandler\r
+ .word PVD_IRQHandler\r
+ .word TAMPER_STAMP_IRQHandler\r
+ .word RTC_WKUP_IRQHandler\r
+ .word FLASH_IRQHandler\r
+ .word RCC_IRQHandler\r
+ .word EXTI0_IRQHandler\r
+ .word EXTI1_IRQHandler\r
+ .word EXTI2_IRQHandler\r
+ .word EXTI3_IRQHandler\r
+ .word EXTI4_IRQHandler\r
+ .word DMA1_Channel1_IRQHandler\r
+ .word DMA1_Channel2_IRQHandler\r
+ .word DMA1_Channel3_IRQHandler\r
+ .word DMA1_Channel4_IRQHandler\r
+ .word DMA1_Channel5_IRQHandler\r
+ .word DMA1_Channel6_IRQHandler\r
+ .word DMA1_Channel7_IRQHandler\r
+ .word ADC1_IRQHandler\r
+ .word USB_HP_IRQHandler\r
+ .word USB_LP_IRQHandler\r
+ .word DAC_IRQHandler\r
+ .word COMP_IRQHandler\r
+ .word EXTI9_5_IRQHandler\r
+ .word LCD_IRQHandler\r
+ .word TIM9_IRQHandler\r
+ .word TIM10_IRQHandler\r
+ .word TIM11_IRQHandler\r
+ .word TIM2_IRQHandler\r
+ .word TIM3_IRQHandler\r
+ .word TIM4_IRQHandler\r
+ .word I2C1_EV_IRQHandler\r
+ .word I2C1_ER_IRQHandler\r
+ .word I2C2_EV_IRQHandler\r
+ .word I2C2_ER_IRQHandler\r
+ .word SPI1_IRQHandler\r
+ .word SPI2_IRQHandler\r
+ .word USART1_IRQHandler\r
+ .word USART2_IRQHandler\r
+ .word USART3_IRQHandler\r
+ .word EXTI15_10_IRQHandler\r
+ .word RTC_Alarm_IRQHandler\r
+ .word USB_FS_WKUP_IRQHandler\r
+ .word TIM6_IRQHandler\r
+ .word TIM7_IRQHandler\r
+ .word 0\r
+ .word 0\r
+ .word 0\r
+ .word 0\r
+ .word 0\r
+ .word BootRAM /* @0x108. This is for boot in RAM mode for \r
+ STM32L15x ULtra Low Power Medium-density devices. */\r
+ \r
+/*******************************************************************************\r
+*\r
+* Provide weak aliases for each Exception handler to the Default_Handler. \r
+* As they are weak aliases, any function with the same name will override \r
+* this definition.\r
+*\r
+*******************************************************************************/\r
+ \r
+ .weak NMI_Handler\r
+ .thumb_set NMI_Handler,Default_Handler\r
+\r
+ .weak HardFault_Handler\r
+ .thumb_set HardFault_Handler,Default_Handler\r
+\r
+ .weak MemManage_Handler\r
+ .thumb_set MemManage_Handler,Default_Handler\r
+\r
+ .weak BusFault_Handler\r
+ .thumb_set BusFault_Handler,Default_Handler\r
+\r
+ .weak UsageFault_Handler\r
+ .thumb_set UsageFault_Handler,Default_Handler\r
+\r
+ .weak SVC_Handler\r
+ .thumb_set SVC_Handler,Default_Handler\r
+\r
+ .weak DebugMon_Handler\r
+ .thumb_set DebugMon_Handler,Default_Handler\r
+\r
+ .weak PendSV_Handler\r
+ .thumb_set PendSV_Handler,Default_Handler\r
+\r
+ .weak SysTick_Handler\r
+ .thumb_set SysTick_Handler,Default_Handler\r
+\r
+ .weak WWDG_IRQHandler\r
+ .thumb_set WWDG_IRQHandler,Default_Handler\r
+\r
+ .weak PVD_IRQHandler\r
+ .thumb_set PVD_IRQHandler,Default_Handler\r
+\r
+ .weak TAMPER_STAMP_IRQHandler\r
+ .thumb_set TAMPER_STAMP_IRQHandler,Default_Handler\r
+\r
+ .weak RTC_WKUP_IRQHandler\r
+ .thumb_set RTC_WKUP_IRQHandler,Default_Handler\r
+\r
+ .weak FLASH_IRQHandler\r
+ .thumb_set FLASH_IRQHandler,Default_Handler\r
+\r
+ .weak RCC_IRQHandler\r
+ .thumb_set RCC_IRQHandler,Default_Handler\r
+\r
+ .weak EXTI0_IRQHandler\r
+ .thumb_set EXTI0_IRQHandler,Default_Handler\r
+\r
+ .weak EXTI1_IRQHandler\r
+ .thumb_set EXTI1_IRQHandler,Default_Handler\r
+\r
+ .weak EXTI2_IRQHandler\r
+ .thumb_set EXTI2_IRQHandler,Default_Handler\r
+\r
+ .weak EXTI3_IRQHandler\r
+ .thumb_set EXTI3_IRQHandler,Default_Handler\r
+\r
+ .weak EXTI4_IRQHandler\r
+ .thumb_set EXTI4_IRQHandler,Default_Handler\r
+\r
+ .weak DMA1_Channel1_IRQHandler\r
+ .thumb_set DMA1_Channel1_IRQHandler,Default_Handler\r
+\r
+ .weak DMA1_Channel2_IRQHandler\r
+ .thumb_set DMA1_Channel2_IRQHandler,Default_Handler\r
+\r
+ .weak DMA1_Channel3_IRQHandler\r
+ .thumb_set DMA1_Channel3_IRQHandler,Default_Handler\r
+\r
+ .weak DMA1_Channel4_IRQHandler\r
+ .thumb_set DMA1_Channel4_IRQHandler,Default_Handler\r
+\r
+ .weak DMA1_Channel5_IRQHandler\r
+ .thumb_set DMA1_Channel5_IRQHandler,Default_Handler\r
+\r
+ .weak DMA1_Channel6_IRQHandler\r
+ .thumb_set DMA1_Channel6_IRQHandler,Default_Handler\r
+\r
+ .weak DMA1_Channel7_IRQHandler\r
+ .thumb_set DMA1_Channel7_IRQHandler,Default_Handler\r
+\r
+ .weak ADC1_IRQHandler\r
+ .thumb_set ADC1_IRQHandler,Default_Handler\r
+\r
+ .weak USB_HP_IRQHandler\r
+ .thumb_set USB_HP_IRQHandler,Default_Handler\r
+\r
+ .weak USB_LP_IRQHandler\r
+ .thumb_set USB_LP_IRQHandler,Default_Handler\r
+\r
+ .weak DAC_IRQHandler\r
+ .thumb_set DAC_IRQHandler,Default_Handler\r
+\r
+ .weak COMP_IRQHandler\r
+ .thumb_set COMP_IRQHandler,Default_Handler\r
+\r
+ .weak EXTI9_5_IRQHandler\r
+ .thumb_set EXTI9_5_IRQHandler,Default_Handler\r
+\r
+ .weak LCD_IRQHandler\r
+ .thumb_set LCD_IRQHandler,Default_Handler\r
+ \r
+ .weak TIM9_IRQHandler\r
+ .thumb_set TIM9_IRQHandler,Default_Handler\r
+\r
+ .weak TIM10_IRQHandler\r
+ .thumb_set TIM10_IRQHandler,Default_Handler\r
+\r
+ .weak TIM11_IRQHandler\r
+ .thumb_set TIM11_IRQHandler,Default_Handler\r
+\r
+ .weak TIM2_IRQHandler\r
+ .thumb_set TIM2_IRQHandler,Default_Handler\r
+\r
+ .weak TIM3_IRQHandler\r
+ .thumb_set TIM3_IRQHandler,Default_Handler\r
+\r
+ .weak TIM4_IRQHandler\r
+ .thumb_set TIM4_IRQHandler,Default_Handler\r
+\r
+ .weak I2C1_EV_IRQHandler\r
+ .thumb_set I2C1_EV_IRQHandler,Default_Handler\r
+\r
+ .weak I2C1_ER_IRQHandler\r
+ .thumb_set I2C1_ER_IRQHandler,Default_Handler\r
+\r
+ .weak I2C2_EV_IRQHandler\r
+ .thumb_set I2C2_EV_IRQHandler,Default_Handler\r
+\r
+ .weak I2C2_ER_IRQHandler\r
+ .thumb_set I2C2_ER_IRQHandler,Default_Handler\r
+\r
+ .weak SPI1_IRQHandler\r
+ .thumb_set SPI1_IRQHandler,Default_Handler\r
+\r
+ .weak SPI2_IRQHandler\r
+ .thumb_set SPI2_IRQHandler,Default_Handler\r
+\r
+ .weak USART1_IRQHandler\r
+ .thumb_set USART1_IRQHandler,Default_Handler\r
+\r
+ .weak USART2_IRQHandler\r
+ .thumb_set USART2_IRQHandler,Default_Handler\r
+\r
+ .weak USART3_IRQHandler\r
+ .thumb_set USART3_IRQHandler,Default_Handler\r
+\r
+ .weak EXTI15_10_IRQHandler\r
+ .thumb_set EXTI15_10_IRQHandler,Default_Handler\r
+\r
+ .weak RTC_Alarm_IRQHandler\r
+ .thumb_set RTC_Alarm_IRQHandler,Default_Handler\r
+\r
+ .weak USB_FS_WKUP_IRQHandler\r
+ .thumb_set USB_FS_WKUP_IRQHandler,Default_Handler\r
+\r
+ .weak TIM6_IRQHandler\r
+ .thumb_set TIM6_IRQHandler,Default_Handler\r
+\r
+ .weak TIM7_IRQHandler\r
+ .thumb_set TIM7_IRQHandler,Default_Handler\r
+\r
+/******************** (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE***/\r
+\r
--- /dev/null
+/*
+*****************************************************************************
+**
+** File : stm32_flash.ld
+**
+** Abstract : Linker script for STM32L152RB Device with
+** 128KByte FLASH, 16KByte RAM
+**
+** Set heap size, stack size and stack location according
+** to application requirements.
+**
+** Set memory bank area and size if external memory is used.
+**
+** Target : STMicroelectronics STM32
+**
+** Environment : Atollic TrueSTUDIO(R)
+**
+** Distribution: The file is distributed \93as is,\94 without any warranty
+** of any kind.
+**
+** (c)Copyright Atollic AB.
+** You may use this file as-is or modify it according to the needs of your
+** project. Distribution of this file (unmodified or modified) is not
+** permitted. Atollic AB permit registered Atollic TrueSTUDIO(R) users the
+** rights to distribute the assembled, compiled & linked contents of this
+** file as part of an application binary file, provided that it is built
+** using the Atollic TrueSTUDIO(R) toolchain.
+**
+*****************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x20004000; /* end of 16K RAM */
+
+/* Generate a link error if heap and stack don't fit into RAM */
+_Min_Heap_Size = 0; /* required amount of heap */
+_Min_Stack_Size = 0x80; /* required amount of stack */
+
+/* Specify the memory areas */
+MEMORY
+{
+ FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 128K
+ RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 16K
+ MEMORY_B1 (rx) : ORIGIN = 0x60000000, LENGTH = 0K
+ RW_EEPROM (rw) : ORIGIN = 0x08080000, LENGTH = 32
+}
+
+/* Define output sections */
+SECTIONS
+{
+ /* The startup code goes first into FLASH */
+ .isr_vector :
+ {
+ . = ALIGN(4);
+ KEEP(*(.isr_vector)) /* Startup code */
+ . = ALIGN(4);
+ } >FLASH
+
+ /* The program code and other data goes into FLASH */
+ .text :
+ {
+ . = ALIGN(4);
+ *(.text) /* .text sections (code) */
+ *(.text*) /* .text* sections (code) */
+ *(.rodata) /* .rodata sections (constants, strings, etc.) */
+ *(.rodata*) /* .rodata* sections (constants, strings, etc.) */
+ *(.glue_7) /* glue arm to thumb code */
+ *(.glue_7t) /* glue thumb to arm code */
+ *(.eh_frame)
+
+ KEEP (*(.init))
+ KEEP (*(.fini))
+
+ . = ALIGN(4);
+ _etext = .; /* define a global symbols at end of code */
+ } >FLASH
+
+
+ .ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
+ .ARM : {
+ __exidx_start = .;
+ *(.ARM.exidx*)
+ __exidx_end = .;
+ } >FLASH
+
+ .preinit_array :
+ {
+ PROVIDE_HIDDEN (__preinit_array_start = .);
+ KEEP (*(.preinit_array*))
+ PROVIDE_HIDDEN (__preinit_array_end = .);
+ } >FLASH
+ .init_array :
+ {
+ PROVIDE_HIDDEN (__init_array_start = .);
+ KEEP (*(SORT(.init_array.*)))
+ KEEP (*(.init_array*))
+ PROVIDE_HIDDEN (__init_array_end = .);
+ } >FLASH
+ .fini_array :
+ {
+ PROVIDE_HIDDEN (__fini_array_start = .);
+ KEEP (*(.fini_array*))
+ KEEP (*(SORT(.fini_array.*)))
+ PROVIDE_HIDDEN (__fini_array_end = .);
+ } >FLASH
+
+ /* used by the startup to initialize data */
+ _sidata = .;
+
+ /* Initialized data sections goes into RAM, load LMA copy after code */
+ .data : AT ( _sidata )
+ {
+ . = ALIGN(4);
+ _sdata = .; /* create a global symbol at data start */
+ *(.data) /* .data sections */
+ *(.data*) /* .data* sections */
+
+ . = ALIGN(4);
+ _edata = .; /* define a global symbol at data end */
+ } >RAM
+
+ /* Uninitialized data section */
+ . = ALIGN(4);
+ .bss :
+ {
+ /* This is used by the startup in order to initialize the .bss secion */
+ _sbss = .; /* define a global symbol at bss start */
+ __bss_start__ = _sbss;
+ *(.bss)
+ *(.bss*)
+ *(COMMON)
+
+ . = ALIGN(4);
+ _ebss = .; /* define a global symbol at bss end */
+ __bss_end__ = _ebss;
+ } >RAM
+
+ /* User_heap_stack section, used to check that there is enough RAM left */
+ ._user_heap_stack :
+ {
+ . = ALIGN(4);
+ PROVIDE ( end = . );
+ PROVIDE ( _end = . );
+ . = . + _Min_Heap_Size;
+ . = . + _Min_Stack_Size;
+ . = ALIGN(4);
+ } >RAM
+
+ /* MEMORY_bank1 section, code must be located here explicitly */
+ /* Example: extern int foo(void) __attribute__ ((section (".mb1text"))); */
+ .memory_b1_text :
+ {
+ *(.mb1text) /* .mb1text sections (code) */
+ *(.mb1text*) /* .mb1text* sections (code) */
+ *(.mb1rodata) /* read-only data (constants) */
+ *(.mb1rodata*)
+ } >MEMORY_B1
+
+ /* Remove information from the standard libraries */
+ /DISCARD/ :
+ {
+ libc.a ( * )
+ libm.a ( * )
+ libgcc.a ( * )
+ }
+
+ .ARM.attributes 0 : { *(.ARM.attributes) }
+
+ .DataFlash (NOLOAD): {*(.DataFlash)} >RW_EEPROM
+}
--- /dev/null
+/**\r
+ ******************************************************************************\r
+ * @file system_stm32l1xx.c\r
+ * @author MCD Application Team\r
+ * @version V1.0.0\r
+ * @date 2-June-2011\r
+ * @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.\r
+ * This file contains the system clock configuration for STM32L1xx Ultra\r
+ * Low Medium-density devices, and is generated by the clock configuration\r
+ * tool "STM32L1xx_Clock_Configuration_V1.0.0.xls".\r
+ * \r
+ * 1. This file provides two functions and one global variable to be called from \r
+ * user application:\r
+ * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier\r
+ * and Divider factors, AHB/APBx prescalers and Flash settings),\r
+ * depending on the configuration made in the clock xls tool. \r
+ * This function is called at startup just after reset and \r
+ * before branch to main program. This call is made inside\r
+ * the "startup_stm32l1xx_md.s" file.\r
+ * \r
+ * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used\r
+ * by the user application to setup the SysTick \r
+ * timer or configure other parameters.\r
+ * \r
+ * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must\r
+ * be called whenever the core clock is changed\r
+ * during program execution. \r
+ * \r
+ * 2. After each device reset the MSI (2.1 MHz Range) is used as system clock source.\r
+ * Then SystemInit() function is called, in "startup_stm32l1xx_md.s" file, to\r
+ * configure the system clock before to branch to main program. \r
+ * \r
+ * 3. If the system clock source selected by user fails to startup, the SystemInit()\r
+ * function will do nothing and MSI still used as system clock source. User can \r
+ * add some code to deal with this issue inside the SetSysClock() function. \r
+ * \r
+ * 4. The default value of HSE crystal is set to 8MHz, refer to "HSE_VALUE" define\r
+ * in "stm32l1xx.h" file. When HSE is used as system clock source, directly or\r
+ * through PLL, and you are using different crystal you have to adapt the HSE\r
+ * value to your own configuration.\r
+ * \r
+ * 5. This file configures the system clock as follows: \r
+ *=============================================================================\r
+ * System Clock Configuration\r
+ *=============================================================================\r
+ * System clock source | HSI\r
+ *----------------------------------------------------------------------------- \r
+ * SYSCLK | 16000000 Hz\r
+ *----------------------------------------------------------------------------- \r
+ * HCLK | 16000000 Hz\r
+ *----------------------------------------------------------------------------- \r
+ * AHB Prescaler | 1\r
+ *----------------------------------------------------------------------------- \r
+ * APB1 Prescaler | 1\r
+ *----------------------------------------------------------------------------- \r
+ * APB2 Prescaler | 1\r
+ *----------------------------------------------------------------------------- \r
+ * HSE Frequency | 8000000 Hz\r
+ *----------------------------------------------------------------------------- \r
+ * PLL DIV | Not Used\r
+ *----------------------------------------------------------------------------- \r
+ * PLL MUL | Not Used\r
+ *----------------------------------------------------------------------------- \r
+ * VDD | 3.3 V\r
+ *----------------------------------------------------------------------------- \r
+ * Vcore | 1.8 V (Range 1)\r
+ *----------------------------------------------------------------------------- \r
+ * Flash Latency | 0 WS\r
+ *----------------------------------------------------------------------------- \r
+ * Require 48MHz for USB clock | Disabled\r
+ *----------------------------------------------------------------------------- \r
+ *=============================================================================\r
+ ****************************************************************************** \r
+ * @attention\r
+ *\r
+ * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS\r
+ * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE\r
+ * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY\r
+ * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING\r
+ * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE\r
+ * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.\r
+ *\r
+ * <h2><center>© COPYRIGHT 2010 STMicroelectronics</center></h2>\r
+ ****************************************************************************** \r
+ */\r
+\r
+/** @addtogroup CMSIS\r
+ * @{\r
+ */\r
+\r
+/** @addtogroup stm32l1xx_system\r
+ * @{\r
+ */ \r
+ \r
+/** @addtogroup STM32L1xx_System_Private_Includes\r
+ * @{\r
+ */\r
+\r
+#include "stm32l1xx.h"\r
+\r
+/**\r
+ * @}\r
+ */\r
+\r
+/** @addtogroup STM32L1xx_System_Private_TypesDefinitions\r
+ * @{\r
+ */\r
+\r
+/**\r
+ * @}\r
+ */\r
+\r
+/** @addtogroup STM32L1xx_System_Private_Defines\r
+ * @{\r
+ */\r
+/*!< Uncomment the following line if you need to relocate your vector Table in\r
+ Internal SRAM. */ \r
+/* #define VECT_TAB_SRAM */\r
+#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field. \r
+ This value must be a multiple of 0x200. */\r
+/**\r
+ * @}\r
+ */\r
+\r
+/** @addtogroup STM32L1xx_System_Private_Macros\r
+ * @{\r
+ */\r
+\r
+/**\r
+ * @}\r
+ */\r
+\r
+/** @addtogroup STM32L1xx_System_Private_Variables\r
+ * @{\r
+ */\r
+uint32_t SystemCoreClock = 16000000;\r
+__I uint8_t PLLMulTable[9] = {3, 4, 6, 8, 12, 16, 24, 32, 48};\r
+__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};\r
+\r
+/**\r
+ * @}\r
+ */\r
+\r
+/** @addtogroup STM32L1xx_System_Private_FunctionPrototypes\r
+ * @{\r
+ */\r
+\r
+static void SetSysClock(void);\r
+\r
+/**\r
+ * @}\r
+ */\r
+\r
+/** @addtogroup STM32L1xx_System_Private_Functions\r
+ * @{\r
+ */\r
+\r
+/**\r
+ * @brief Setup the microcontroller system.\r
+ * Initialize the Embedded Flash Interface, the PLL and update the \r
+ * SystemCoreClock variable.\r
+ * @param None\r
+ * @retval None\r
+ */\r
+void SystemInit (void)\r
+{\r
+ /*!< Set MSION bit */\r
+ RCC->CR |= (uint32_t)0x00000100;\r
+\r
+ /*!< Reset SW[1:0], HPRE[3:0], PPRE1[2:0], PPRE2[2:0], MCOSEL[2:0] and MCOPRE[2:0] bits */\r
+ RCC->CFGR &= (uint32_t)0x88FFC00C;\r
+ \r
+ /*!< Reset HSION, HSEON, CSSON and PLLON bits */\r
+ RCC->CR &= (uint32_t)0xEEFEFFFE;\r
+\r
+ /*!< Reset HSEBYP bit */\r
+ RCC->CR &= (uint32_t)0xFFFBFFFF;\r
+\r
+ /*!< Reset PLLSRC, PLLMUL[3:0] and PLLDIV[1:0] bits */\r
+ RCC->CFGR &= (uint32_t)0xFF02FFFF;\r
+\r
+ /*!< Disable all interrupts */\r
+ RCC->CIR = 0x00000000;\r
+ \r
+ /* Configure the System clock frequency, AHB/APBx prescalers and Flash settings */\r
+ SetSysClock();\r
+\r
+#ifdef VECT_TAB_SRAM\r
+ SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */\r
+#else\r
+ SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */\r
+#endif\r
+}\r
+\r
+/**\r
+ * @brief Update SystemCoreClock according to Clock Register Values\r
+ * @note - The system frequency computed by this function is not the real \r
+ * frequency in the chip. It is calculated based on the predefined \r
+ * constant and the selected clock source:\r
+ * \r
+ * - If SYSCLK source is MSI, SystemCoreClock will contain the MSI \r
+ * value as defined by the MSI range.\r
+ * \r
+ * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)\r
+ * \r
+ * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)\r
+ * \r
+ * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) \r
+ * or HSI_VALUE(*) multiplied/divided by the PLL factors.\r
+ * \r
+ * (*) HSI_VALUE is a constant defined in stm32l1xx.h file (default value\r
+ * 16 MHz) but the real value may vary depending on the variations\r
+ * in voltage and temperature. \r
+ * \r
+ * (**) HSE_VALUE is a constant defined in stm32l1xx.h file (default value\r
+ * 8 MHz), user has to ensure that HSE_VALUE is same as the real\r
+ * frequency of the crystal used. Otherwise, this function may\r
+ * have wrong result.\r
+ * \r
+ * - The result of this function could be not correct when using fractional\r
+ * value for HSE crystal. \r
+ * @param None\r
+ * @retval None\r
+ */\r
+void SystemCoreClockUpdate (void)\r
+{\r
+ uint32_t tmp = 0, pllmul = 0, plldiv = 0, pllsource = 0, msirange = 0;\r
+\r
+ /* Get SYSCLK source -------------------------------------------------------*/\r
+ tmp = RCC->CFGR & RCC_CFGR_SWS;\r
+ \r
+ switch (tmp)\r
+ {\r
+ case 0x00: /* MSI used as system clock */\r
+ msirange = (RCC->ICSCR & RCC_ICSCR_MSIRANGE) >> 13;\r
+ SystemCoreClock = (32768 * (1 << (msirange + 1)));\r
+ break;\r
+ case 0x04: /* HSI used as system clock */\r
+ SystemCoreClock = HSI_VALUE;\r
+ break;\r
+ case 0x08: /* HSE used as system clock */\r
+ SystemCoreClock = HSE_VALUE;\r
+ break;\r
+ case 0x0C: /* PLL used as system clock */\r
+ /* Get PLL clock source and multiplication factor ----------------------*/\r
+ pllmul = RCC->CFGR & RCC_CFGR_PLLMUL;\r
+ plldiv = RCC->CFGR & RCC_CFGR_PLLDIV;\r
+ pllmul = PLLMulTable[(pllmul >> 18)];\r
+ plldiv = (plldiv >> 22) + 1;\r
+ \r
+ pllsource = RCC->CFGR & RCC_CFGR_PLLSRC;\r
+\r
+ if (pllsource == 0x00)\r
+ {\r
+ /* HSI oscillator clock selected as PLL clock entry */\r
+ SystemCoreClock = (((HSI_VALUE) * pllmul) / plldiv);\r
+ }\r
+ else\r
+ {\r
+ /* HSE selected as PLL clock entry */\r
+ SystemCoreClock = (((HSE_VALUE) * pllmul) / plldiv);\r
+ }\r
+ break;\r
+ default: /* MSI used as system clock */\r
+ msirange = (RCC->ICSCR & RCC_ICSCR_MSIRANGE) >> 13;\r
+ SystemCoreClock = (32768 * (1 << (msirange + 1)));\r
+ break;\r
+ }\r
+ /* Compute HCLK clock frequency --------------------------------------------*/\r
+ /* Get HCLK prescaler */\r
+ tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];\r
+ /* HCLK clock frequency */\r
+ SystemCoreClock >>= tmp;\r
+}\r
+\r
+/**\r
+ * @brief Configures the System clock frequency, AHB/APBx prescalers and Flash \r
+ * settings.\r
+ * @note This function should be called only once the RCC clock configuration \r
+ * is reset to the default reset state (done in SystemInit() function). \r
+ * @param None\r
+ * @retval None\r
+ */\r
+static void SetSysClock(void)\r
+{\r
+ __IO uint32_t StartUpCounter = 0, HSIStatus = 0;\r
+ \r
+ /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/\r
+ /* Enable HSI */\r
+ RCC->CR |= ((uint32_t)RCC_CR_HSION);\r
+ \r
+ /* Wait till HSI is ready and if Time out is reached exit */\r
+ do\r
+ {\r
+ HSIStatus = RCC->CR & RCC_CR_HSIRDY;\r
+ } while((HSIStatus == 0) && (StartUpCounter != HSI_STARTUP_TIMEOUT));\r
+\r
+ if ((RCC->CR & RCC_CR_HSIRDY) != RESET)\r
+ {\r
+ HSIStatus = (uint32_t)0x01;\r
+ }\r
+ else\r
+ {\r
+ HSIStatus = (uint32_t)0x00;\r
+ }\r
+ \r
+ if (HSIStatus == (uint32_t)0x01)\r
+ {\r
+ /* Flash 0 wait state */\r
+ FLASH->ACR &= ~FLASH_ACR_LATENCY;\r
+ \r
+ /* Disable Prefetch Buffer */\r
+ FLASH->ACR &= ~FLASH_ACR_PRFTEN;\r
+\r
+ /* Disable 64-bit access */\r
+ FLASH->ACR &= ~FLASH_ACR_ACC64;\r
+ \r
+\r
+ /* Power enable */\r
+ RCC->APB1ENR |= RCC_APB1ENR_PWREN;\r
+ \r
+ /* Select the Voltage Range 1 (1.8 V) */\r
+ PWR->CR = PWR_CR_VOS_0;\r
+ \r
+ \r
+ /* Wait Until the Voltage Regulator is ready */\r
+ while((PWR->CSR & PWR_CSR_VOSF) != RESET)\r
+ {\r
+ }\r
+ \r
+ /* HCLK = SYSCLK /1*/\r
+ RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1;\r
+ /* PCLK2 = HCLK /1*/\r
+ RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1;\r
+ \r
+ /* PCLK1 = HCLK /1*/\r
+ RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV1;\r
+ \r
+ /* Select HSI as system clock source */\r
+ RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));\r
+ RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSI;\r
+\r
+ /* Wait till HSI is used as system clock source */\r
+ while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)RCC_CFGR_SWS_HSI)\r
+ {\r
+ }\r
+ }\r
+ else\r
+ {\r
+ /* If HSI fails to start-up, the application will have wrong clock\r
+ configuration. User can add here some code to deal with this error */\r
+ }\r
+}\r
+\r
+/**\r
+ * @}\r
+ */\r
+\r
+/**\r
+ * @}\r
+ */\r
+\r
+/**\r
+ * @}\r
+ */\r
+\r
+/******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/\r
CFLAGS+=-Wall -Wextra
CFLAGS+=-I../src
-LDFLAGS=-lusb-1.0 -L.. -lstlink
+LDFLAGS=-L.. -lstlink -lusb-1.0
ifeq ($(CONFIG_USE_LIBSG),)
CONFIG_USE_LIBSG=1
CFLAGS+=-g -Wall -Werror -std=gnu99 -I../src
CFLAGS+=-DCONFIG_USE_LIBUSB=1
-LDFLAGS=-lusb-1.0 -L.. -lstlink
+LDFLAGS=-L.. -lstlink -lusb-1.0
ifeq ($(CONFIG_USE_LIBSG),)
CONFIG_USE_LIBSG=1
#define WLOG(format, args...) ugly_log(UWARN, LOG_TAG, format, ## args)
#define fatal(format, args...) ugly_log(UFATAL, LOG_TAG, format, ## args)
+/* todo: stm32l15xxx flash memory, pm0062 manual */
-/* FPEC flash controller interface, pm0063 manual
- */
+/* stm32f FPEC flash controller interface, pm0063 manual */
#define FLASH_REGS_ADDR 0x40022000
#define FLASH_REGS_SIZE 0x28
char *p = (char *) &ui;
if (!is_bigendian()) { // le -> le (don't swap)
- p[0] = c[pt];
+ p[0] = c[pt + 0];
p[1] = c[pt + 1];
p[2] = c[pt + 2];
p[3] = c[pt + 3];
p[0] = c[pt + 3];
p[1] = c[pt + 2];
p[2] = c[pt + 1];
- p[3] = c[pt];
+ p[3] = c[pt + 0];
}
return ui;
}
char *p = (char *) &ui;
if (!is_bigendian()) { // le -> le (don't swap)
- p[0] = c[pt];
+ p[0] = c[pt + 0];
p[1] = c[pt + 1];
} else {
p[0] = c[pt + 1];
- p[1] = c[pt];
+ p[1] = c[pt + 0];
}
return ui;
}
if (sl->q_len <= 0)
return;
- stlink_print_data(sl);
-
switch (sl->q_buf[0]) {
case STLINK_CORE_RUNNING:
sl->core_stat = STLINK_CORE_RUNNING;
/* do the copy by 1k blocks */
for (off = 0; off < size; off += 1024) {
size_t read_size = 1024;
+ size_t rounded_size;
if ((off + read_size) > size)
- read_size = off + read_size;
+ read_size = size - off;
/* round size if needed */
- if (read_size & 3)
- read_size = (read_size + 4) & ~(3);
+ rounded_size = read_size;
+ if (rounded_size & 3)
+ rounded_size = (rounded_size + 4) & ~(3);
- stlink_read_mem32(sl, addr + off, read_size);
+ stlink_read_mem32(sl, addr + off, rounded_size);
if (write(fd, sl->q_buf, read_size) != (ssize_t) read_size) {
fprintf(stderr, "write() != read_size\n");
return 0;
}
-int stlink_erase_flash_page(stlink_t *sl, stm32_addr_t page) {
- /* page an addr in the page to erase */
+int stlink_erase_flash_page(stlink_t *sl, stm32_addr_t page)
+{
+ /* page an addr in the page to erase */
+
+ stlink_core_id(sl);
+ if (sl->core_id == STM32L_CORE_ID)
+ {
+#define STM32L_FLASH_REGS_ADDR ((uint32_t)0x40023c00)
+#define STM32L_FLASH_ACR (STM32L_FLASH_REGS_ADDR + 0x00)
+#define STM32L_FLASH_PECR (STM32L_FLASH_REGS_ADDR + 0x04)
+#define STM32L_FLASH_PDKEYR (STM32L_FLASH_REGS_ADDR + 0x08)
+#define STM32L_FLASH_PEKEYR (STM32L_FLASH_REGS_ADDR + 0x0c)
+#define STM32L_FLASH_PRGKEYR (STM32L_FLASH_REGS_ADDR + 0x10)
+#define STM32L_FLASH_OPTKEYR (STM32L_FLASH_REGS_ADDR + 0x14)
+#define STM32L_FLASH_SR (STM32L_FLASH_REGS_ADDR + 0x18)
+#define STM32L_FLASH_OBR (STM32L_FLASH_REGS_ADDR + 0x0c)
+#define STM32L_FLASH_WRPR (STM32L_FLASH_REGS_ADDR + 0x20)
+
+ uint32_t val;
+
+ /* disable pecr protection */
+ write_uint32(sl->q_buf, 0x89abcdef);
+ stlink_write_mem32(sl, STM32L_FLASH_PEKEYR, sizeof(uint32_t));
+ write_uint32(sl->q_buf, 0x02030405);
+ stlink_write_mem32(sl, STM32L_FLASH_PEKEYR, sizeof(uint32_t));
+
+ /* check pecr.pelock is cleared */
+ stlink_read_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t));
+ val = read_uint32(sl->q_buf, 0);
+ if (val & (1 << 0))
+ {
+ fprintf(stderr, "pecr.pelock not clear (0x%x)\n", val);
+ return -1;
+ }
+
+ /* unlock program memory */
+ write_uint32(sl->q_buf, 0x8c9daebf);
+ stlink_write_mem32(sl, STM32L_FLASH_PRGKEYR, sizeof(uint32_t));
+ write_uint32(sl->q_buf, 0x13141516);
+ stlink_write_mem32(sl, STM32L_FLASH_PRGKEYR, sizeof(uint32_t));
+
+ /* check pecr.prglock is cleared */
+ stlink_read_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t));
+ val = read_uint32(sl->q_buf, 0);
+ if (val & (1 << 1))
+ {
+ fprintf(stderr, "pecr.prglock not clear (0x%x)\n", val);
+ return -1;
+ }
+
+ /* unused: unlock the option byte block */
+#if 0
+ write_uint32(sl->q_buf, 0xfbead9c8);
+ stlink_write_mem32(sl, STM32L_FLASH_OPTKEYR, sizeof(uint32_t));
+ write_uint32(sl->q_buf, 0x24252627);
+ stlink_write_mem32(sl, STM32L_FLASH_OPTKEYR, sizeof(uint32_t));
+
+ /* check pecr.optlock is cleared */
+ stlink_read_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t));
+ val = read_uint32(sl->q_buf, 0);
+ if (val & (1 << 2))
+ {
+ fprintf(stderr, "pecr.prglock not clear\n");
+ return -1;
+ }
+#endif
+
+ /* set pecr.{erase,prog} */
+ val |= (1 << 9) | (1 << 3);
+ write_uint32(sl->q_buf, val);
+ stlink_write_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t));
+
+ /* wait for sr.busy to be cleared */
+ while (1)
+ {
+ stlink_read_mem32(sl, STM32L_FLASH_SR, sizeof(uint32_t));
+ if ((read_uint32(sl->q_buf, 0) & (1 << 0)) == 0) break ;
+ }
+ /* write 0 to the first word of the page to be erased */
+ memset(sl->q_buf, 0, sizeof(uint32_t));
+ stlink_write_mem32(sl, page, sizeof(uint32_t));
+
+ /* reset lock bits */
+ stlink_read_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t));
+ val = read_uint32(sl->q_buf, 0) | (1 << 0) | (1 << 1) | (1 << 2);
+ write_uint32(sl->q_buf, val);
+ stlink_write_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t));
+ }
+ else if (sl->core_id == STM32VL_CORE_ID)
+ {
/* wait for ongoing op to finish */
wait_flash_busy(sl);
/* relock the flash */
lock_flash(sl);
+ }
+ else {
+ fprintf(stderr, "unknown coreid: %x\n", sl->core_id);
+ return -1;
+ }
- /* todo: verify the erased page */
+ /* todo: verify the erased page */
- return 0;
+ return 0;
}
int stlink_erase_flash_mass(stlink_t *sl) {
int write_loader_to_sram(stlink_t *sl, stm32_addr_t* addr, size_t* size) {
/* from openocd, contrib/loaders/flash/stm32.s */
- static const uint8_t loader_code[] = {
+ static const uint8_t loader_code_stm32vl[] = {
0x08, 0x4c, /* ldr r4, STM32_FLASH_BASE */
0x1c, 0x44, /* add r4, r3 */
/* write_half_word: */
0x00, 0x20, 0x02, 0x40, /* STM32_FLASH_BASE: .word 0x40022000 */
};
- memcpy(sl->q_buf, loader_code, sizeof (loader_code));
- stlink_write_mem32(sl, sl->sram_base, sizeof (loader_code));
+ static const uint8_t loader_code_stm32l[] = {
+
+ /* openocd.git/contrib/loaders/flash/stm32lx.S
+ r0, input, dest addr
+ r1, input, source addr
+ r2, input, word count
+ r3, output, word count
+ */
+
+ 0x00, 0x23,
+ 0x04, 0xe0,
+
+ 0x51, 0xf8, 0x04, 0xcb,
+ 0x40, 0xf8, 0x04, 0xcb,
+ 0x01, 0x33,
+
+ 0x93, 0x42,
+ 0xf8, 0xd3,
+ 0x00, 0xbe
+ };
+
+ const uint8_t* loader_code;
+ size_t loader_size;
+
+ if (sl->core_id == STM32L_CORE_ID) /* stm32l */
+ {
+ loader_code = loader_code_stm32l;
+ loader_size = sizeof(loader_code_stm32l);
+ }
+ else if (sl->core_id == STM32VL_CORE_ID)
+ {
+ loader_code = loader_code_stm32vl;
+ loader_size = sizeof(loader_code_stm32vl);
+ }
+ else
+ {
+ fprintf(stderr, "unknown coreid: %x\n", sl->core_id);
+ return -1;
+ }
+
+ memcpy(sl->q_buf, loader_code, loader_size);
+ stlink_write_mem32(sl, sl->sram_base, loader_size);
*addr = sl->sram_base;
- *size = sizeof (loader_code);
+ *size = loader_size;
/* success */
return 0;
return res;
}
-// The stlink_fwrite_flash should not muck with mmapped files inside itself,
-// and should use this function instead. (Hell, what's the reason behind mmap
-// there?!) But, as it is not actually used anywhere, nobody cares.
-
-#define WRITE_BLOCK_SIZE 0x40
int stlink_write_flash(stlink_t *sl, stm32_addr_t addr, uint8_t* base, unsigned len) {
size_t off;
} else if ((addr & 1) || (len & 1)) {
fprintf(stderr, "unaligned addr or size\n");
return -1;
+ } else if (addr & (sl->flash_pgsz - 1)) {
+ fprintf(stderr, "addr not a multiple of pagesize, not supported\n");
+ return -1;
}
- /* flash loader initialization */
- if (init_flash_loader(sl, &fl) == -1) {
+ /* erase each page */
+ for (off = 0; off < len; off += sl->flash_pgsz) {
+ /* addr must be an addr inside the page */
+ if (stlink_erase_flash_page(sl, addr + off) == -1) {
+ fprintf(stderr, "erase_flash_page(0x%zx) == -1\n", addr + off);
+ return -1;
+ }
+ }
+
+ stlink_core_id(sl);
+ if (sl->core_id == STM32L_CORE_ID)
+ {
+ /* use fast word write. todo: half page. */
+
+ uint32_t val;
+
+#if 0 /* todo: check write operation */
+
+ uint32_t nwrites = sl->flash_pgsz;
+
+ redo_write:
+
+#endif /* todo: check write operation */
+
+ /* disable pecr protection */
+ write_uint32(sl->q_buf, 0x89abcdef);
+ stlink_write_mem32(sl, STM32L_FLASH_PEKEYR, sizeof(uint32_t));
+ write_uint32(sl->q_buf, 0x02030405);
+ stlink_write_mem32(sl, STM32L_FLASH_PEKEYR, sizeof(uint32_t));
+
+ /* check pecr.pelock is cleared */
+ stlink_read_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t));
+ val = read_uint32(sl->q_buf, 0);
+ if (val & (1 << 0))
+ {
+ fprintf(stderr, "pecr.pelock not clear\n");
+ return -1;
+ }
+
+ /* unlock program memory */
+ write_uint32(sl->q_buf, 0x8c9daebf);
+ stlink_write_mem32(sl, STM32L_FLASH_PRGKEYR, sizeof(uint32_t));
+ write_uint32(sl->q_buf, 0x13141516);
+ stlink_write_mem32(sl, STM32L_FLASH_PRGKEYR, sizeof(uint32_t));
+
+ /* check pecr.prglock is cleared */
+ stlink_read_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t));
+ val = read_uint32(sl->q_buf, 0);
+ if (val & (1 << 1))
+ {
+ fprintf(stderr, "pecr.prglock not clear\n");
+ return -1;
+ }
+
+ /* write a word in program memory */
+ for (off = 0; off < len; off += sizeof(uint32_t))
+ {
+ if (sl->verbose >= 1)
+ {
+ if ((off & (sl->flash_pgsz - 1)) == 0)
+ {
+ /* show progress. writing procedure is slow
+ and previous errors are misleading */
+ const uint32_t pgnum = off / sl->flash_pgsz;
+ const uint32_t pgcount = len / sl->flash_pgsz;
+ fprintf(stdout, "%u pages written out of %u\n", pgnum, pgcount);
+ }
+ }
+
+ memcpy(sl->q_buf, (const void*)(base + off), sizeof(uint32_t));
+ stlink_write_mem32(sl, addr + off, sizeof(uint32_t));
+
+ /* wait for sr.busy to be cleared */
+ while (1)
+ {
+ stlink_read_mem32(sl, STM32L_FLASH_SR, sizeof(uint32_t));
+ if ((read_uint32(sl->q_buf, 0) & (1 << 0)) == 0) break ;
+ }
+
+#if 0 /* todo: check redo write operation */
+
+ /* check written bytes. todo: should be on a per page basis. */
+ stlink_read_mem32(sl, addr + off, sizeof(uint32_t));
+ if (memcmp(sl->q_buf, base + off, sizeof(uint32_t)))
+ {
+ /* re erase the page and redo the write operation */
+ uint32_t page;
+ uint32_t val;
+
+ /* fail if successive write count too low */
+ if (nwrites < sl->flash_pgsz) {
+ fprintf(stderr, "writes operation failure count too high, aborting\n");
+ return -1;
+ }
+
+ nwrites = 0;
+
+ /* assume addr aligned */
+ if (off % sl->flash_pgsz) off &= ~(sl->flash_pgsz - 1);
+ page = addr + off;
+
+ fprintf(stderr, "invalid write @%x(%x): %x != %x. retrying.\n",
+ page, addr + off, read_uint32(base + off, 0), read_uint32(sl->q_buf, 0));
+
+ /* reset lock bits */
+ stlink_read_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t));
+ val = read_uint32(sl->q_buf, 0) | (1 << 0) | (1 << 1) | (1 << 2);
+ write_uint32(sl->q_buf, val);
+ stlink_write_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t));
+
+ stlink_erase_flash_page(sl, page);
+
+ goto redo_write;
+ }
+
+ /* increment successive writes counter */
+ ++nwrites;
+
+#endif /* todo: check redo write operation */
+
+ }
+
+ /* reset lock bits */
+ stlink_read_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t));
+ val = read_uint32(sl->q_buf, 0) | (1 << 0) | (1 << 1) | (1 << 2);
+ write_uint32(sl->q_buf, val);
+ stlink_write_mem32(sl, STM32L_FLASH_PECR, sizeof(uint32_t));
+ }
+ else if (sl->core_id == STM32VL_CORE_ID)
+ {
+ /* flash loader initialization */
+ if (init_flash_loader(sl, &fl) == -1) {
fprintf(stderr, "init_flash_loader() == -1\n");
return -1;
- }
+ }
- /* write each page. above WRITE_BLOCK_SIZE fails? */
- for (off = 0; off < len; off += WRITE_BLOCK_SIZE) {
+ /* write each page. above WRITE_BLOCK_SIZE fails? */
+#define WRITE_BLOCK_SIZE 0x40
+ for (off = 0; off < len; off += WRITE_BLOCK_SIZE)
+ {
/* adjust last write size */
size_t size = WRITE_BLOCK_SIZE;
- if ((off + WRITE_BLOCK_SIZE) > len)
- size = len - off;
+ if ((off + WRITE_BLOCK_SIZE) > len) size = len - off;
+
+ /* unlock and set programming mode */
+ unlock_flash_if(sl);
+ set_flash_cr_pg(sl);
if (run_flash_loader(sl, &fl, addr + off, base + off, size) == -1) {
- fprintf(stderr, "run_flash_loader(0x%zx) == -1\n", addr + off);
- return -1;
+ fprintf(stderr, "run_flash_loader(0x%zx) == -1\n", addr + off);
+ return -1;
}
+
+ lock_flash(sl);
+ }
+ } else {
+ fprintf(stderr, "unknown coreid: %x\n", sl->core_id);
+ return -1;
}
for (off = 0; off < len; off += sl->flash_pgsz) {
int stlink_fwrite_flash(stlink_t *sl, const char* path, stm32_addr_t addr) {
/* write the file in flash at addr */
- int error = -1;
- size_t off;
+ int err;
mapped_file_t mf = MAPPED_FILE_INITIALIZER;
- flash_loader_t fl;
if (map_file(&mf, path) == -1) {
fprintf(stderr, "map_file() == -1\n");
return -1;
}
- /* check addr range is inside the flash */
- if (addr < sl->flash_base) {
- fprintf(stderr, "addr too low\n");
- goto on_error;
- } else if ((addr + mf.len) < addr) {
- fprintf(stderr, "addr overruns\n");
- goto on_error;
- } else if ((addr + mf.len) > (sl->flash_base + sl->flash_size)) {
- fprintf(stderr, "addr too high\n");
- goto on_error;
- } else if ((addr & 1) || (mf.len & 1)) {
- /* todo */
- fprintf(stderr, "unaligned addr or size\n");
- goto on_error;
- }
+ err = stlink_write_flash(sl, addr, mf.base, mf.len);
- /* erase each page. todo: mass erase faster? */
- for (off = 0; off < mf.len; off += sl->flash_pgsz) {
- /* addr must be an addr inside the page */
- if (stlink_erase_flash_page(sl, addr + off) == -1) {
- fprintf(stderr, "erase_flash_page(0x%zx) == -1\n", addr + off);
- goto on_error;
- }
- }
-
- /* flash loader initialization */
- if (init_flash_loader(sl, &fl) == -1) {
- fprintf(stderr, "init_flash_loader() == -1\n");
- goto on_error;
- }
-
- /* write each page. above WRITE_BLOCK_SIZE fails? */
-#define WRITE_BLOCK_SIZE 0x40
- for (off = 0; off < mf.len; off += WRITE_BLOCK_SIZE) {
- /* adjust last write size */
- size_t size = WRITE_BLOCK_SIZE;
- if ((off + WRITE_BLOCK_SIZE) > mf.len)
- size = mf.len - off;
-
- if (run_flash_loader(sl, &fl, addr + off, mf.base + off, size) == -1) {
- fprintf(stderr, "run_flash_loader(0x%zx) == -1\n", addr + off);
- goto on_error;
- }
- }
-
- /* check the file ha been written */
- if (check_file(sl, &mf, addr) == -1) {
- fprintf(stderr, "check_file() == -1\n");
- goto on_error;
- }
-
- /* success */
- error = 0;
-
-on_error:
unmap_file(&mf);
- return error;
+
+ return err;
}
int run_flash_loader(stlink_t *sl, flash_loader_t* fl, stm32_addr_t target, const uint8_t* buf, size_t size) {
- const size_t count = size / sizeof (uint16_t);
+
+ reg rr;
if (write_buffer_to_sram(sl, fl, buf, size) == -1) {
fprintf(stderr, "write_buffer_to_sram() == -1\n");
return -1;
}
- /* setup core */
- stlink_write_reg(sl, fl->buf_addr, 0); /* source */
- stlink_write_reg(sl, target, 1); /* target */
- stlink_write_reg(sl, count, 2); /* count (16 bits half words) */
- stlink_write_reg(sl, 0, 3); /* flash bank 0 (input) */
- stlink_write_reg(sl, fl->loader_addr, 15); /* pc register */
+ if (sl->core_id == STM32L_CORE_ID) {
- /* unlock and set programming mode */
- unlock_flash_if(sl);
- set_flash_cr_pg(sl);
+ size_t count = size / sizeof(uint32_t);
+ if (size % sizeof(uint32_t)) ++count;
+
+ /* setup core */
+ stlink_write_reg(sl, target, 0); /* target */
+ stlink_write_reg(sl, fl->buf_addr, 1); /* source */
+ stlink_write_reg(sl, count, 2); /* count (32 bits words) */
+ stlink_write_reg(sl, 0, 3); /* output count */
+ stlink_write_reg(sl, fl->loader_addr, 15); /* pc register */
+
+ } else if (sl->core_id == STM32VL_CORE_ID) {
+
+ size_t count = size / sizeof(uint16_t);
+ if (size % sizeof(uint16_t)) ++count;
+
+ /* setup core */
+ stlink_write_reg(sl, fl->buf_addr, 0); /* source */
+ stlink_write_reg(sl, target, 1); /* target */
+ stlink_write_reg(sl, count, 2); /* count (16 bits half words) */
+ stlink_write_reg(sl, 0, 3); /* flash bank 0 (input) */
+ stlink_write_reg(sl, fl->loader_addr, 15); /* pc register */
+
+ } else {
+ fprintf(stderr, "unknown coreid: %x\n", sl->core_id);
+ return -1;
+ }
/* run loader */
- stlink_run(sl);
+ stlink_step(sl);
- while (is_core_halted(sl) == 0)
- ;
+ /* wait until done (reaches breakpoint) */
+ while (is_core_halted(sl) == 0) ;
- lock_flash(sl);
+ /* check written byte count */
+ if (sl->core_id == STM32L_CORE_ID) {
- /* not all bytes have been written */
- reg rr;
- stlink_read_reg(sl, 2, &rr);
- if (rr.r[2] != 0) {
+ size_t count = size / sizeof(uint32_t);
+ if (size % sizeof(uint32_t)) ++count;
+
+ stlink_read_reg(sl, 3, &rr);
+ if (rr.r[3] != count) {
+ fprintf(stderr, "write error, count == %u\n", rr.r[3]);
+ return -1;
+ }
+
+ } else if (sl->core_id == STM32VL_CORE_ID) {
+
+ stlink_read_reg(sl, 2, &rr);
+ if (rr.r[2] != 0) {
fprintf(stderr, "write error, count == %u\n", rr.r[2]);
return -1;
+ }
+
+ } else {
+
+ fprintf(stderr, "unknown coreid: %x\n", sl->core_id);
+ return -1;
+
}
return 0;
-}
\ No newline at end of file
+}
#define CM3_REG_FP_CTRL 0xE0002000
#define CM3_REG_FP_COMP0 0xE0002008
+/* cortex core ids */
+#define STM32VL_CORE_ID 0x1ba01477
+#define STM32L_CORE_ID 0x2ba01477
+#define STM32F4_CORE_ID 0x2ba01477
+
/* Enough space to hold both a V2 command or a V1 command packaged as generic scsi*/
#define C_BUF_LEN 32
#define STM32_FLASH_BASE 0x08000000
#define STM32_FLASH_SIZE (128 * 1024)
#define STM32_FLASH_PGSZ 1024
+#define STM32L_FLASH_PGSZ 256
stm32_addr_t flash_base;
size_t flash_size;
size_t flash_pgsz;
sl->core_stat = STLINK_CORE_STAT_UNKNOWN;
- /* flash memory settings */
- sl->flash_base = STM32_FLASH_BASE;
- sl->flash_size = STM32_FLASH_SIZE;
- sl->flash_pgsz = STM32_FLASH_PGSZ;
-
- /* system memory */
- sl->sys_base = STM32_SYSTEM_BASE;
- sl->sys_size = STM32_SYSTEM_SIZE;
-
- /* sram memory settings */
- sl->sram_base = STM32_SRAM_BASE;
- sl->sram_size = STM32L_SRAM_SIZE;
-
if (libusb_init(&(slu->libusb_ctx))) {
WLOG("failed to init libusb context, wrong version of libraries?\n");
goto on_error;
slu->cmd_len = (slu->protocoll == 1)? STLINK_SG_SIZE: STLINK_CMD_SIZE;
/* success */
+
if (stlink_current_mode(sl) == STLINK_DEV_DFU_MODE) {
ILOG("-- exit_dfu_mode\n");
stlink_exit_dfu_mode(sl);
}
+
+ if (stlink_current_mode(sl) != STLINK_DEV_DEBUG_MODE) {
+ stlink_enter_swd_mode(sl);
+ }
+
stlink_version(sl);
+
+ /* per device family initialization */
+ stlink_core_id(sl);
+ if (sl->core_id == STM32L_CORE_ID) {
+
+ /* flash memory settings */
+ sl->flash_base = STM32_FLASH_BASE;
+ sl->flash_size = STM32_FLASH_SIZE;
+ sl->flash_pgsz = STM32L_FLASH_PGSZ;
+
+ /* system memory */
+ sl->sys_base = STM32_SYSTEM_BASE;
+ sl->sys_size = STM32_SYSTEM_SIZE;
+
+ /* sram memory settings */
+ sl->sram_base = STM32_SRAM_BASE;
+ sl->sram_size = STM32L_SRAM_SIZE;
+
+ } else if (sl->core_id == STM32VL_CORE_ID) {
+
+ /* flash memory settings */
+ sl->flash_base = STM32_FLASH_BASE;
+ sl->flash_size = STM32_FLASH_SIZE;
+ sl->flash_pgsz = STM32_FLASH_PGSZ;
+
+ /* system memory */
+ sl->sys_base = STM32_SYSTEM_BASE;
+ sl->sys_size = STM32_SYSTEM_SIZE;
+
+ /* sram memory settings */
+ sl->sram_base = STM32_SRAM_BASE;
+ sl->sram_size = STM32_SRAM_SIZE;
+
+ } else {
+
+ fprintf(stderr, "unknown coreid: %x\n", sl->core_id);
+ goto on_libusb_error;
+
+ }
+
error = 0;
on_libusb_error:
projects / fw / stlink / commitdiff