-/* 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 */
#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);
+}
+
+#elif CONFIG_STM32F4_DISCOVERY
+
+//#define GPIOD 0x40020C00 /* port D */
+# define GPIOD_MODER (GPIOD + 0x00) /* port mode register */
+# define GPIOD_ODR (GPIOD + 0x14) /* port output data register */
+
+# define LED_GREEN (1 << 12) /* port B, pin 12 */
+# define LED_ORANGE (1 << 13) /* port B, pin 13 */
+# define LED_RED (1 << 14) /* port B, pin 14 */
+# define LED_BLUE (1 << 15) /* port B, pin 15 */
+
+void _tmain(void) {
+ main();
+}
+static inline void setup_leds(void)
+{
+ *(volatile uint32_t*)GPIOD_MODER |= (1 << (12 * 2)) | (1 << (13 * 2)) |
+ (1 << (13 * 2)) | (1 << (14 * 2)) | (1 << (15 * 2));
+}
+
+
+static inline void switch_leds_on(void)
+{
+ *(volatile uint32_t*)GPIOD_ODR = LED_GREEN | LED_RED ;
+}
+
+static inline void switch_leds_off(void)
+{
+ *(volatile uint32_t*)GPIOD_ODR = 0;
}
#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)
{