\begin{lstlisting}[frame=tb]
# update the make option accordingly to your architecture
cd stlink.git/example/blink ;
-PATH=$TOOLCHAIN_PATH/bin:$PATH make CONFIG_STM32L_DISCOVERY=1;
+PATH=$TOOLCHAIN_PATH/bin:$PATH make
\end{lstlisting}
\end{small}
+This builds three files, one for each of the Discovery boards currently
+available.
\paragraph{}
-A GDB server must be start to interact with the STM32. Depending on the discovery kit you
+A GDB server must be started to interact with the STM32. Depending on the discovery kit you
are using, you must run one of the 2 commands:\\
\begin{small}
\begin{lstlisting}[frame=tb]
# STM32VL discovery kit (onboard ST-link)
$> sudo ./st-util --stlinkv1 [-d /dev/sg2]
-# STM32L discovery kit (onboard ST-link/V2)
+# STM32L or STM32F4 discovery kit (onboard ST-link/V2)
$> sudo ./st-util
# Full help for other options (listen port, version)
-EXECUTABLE=blink.elf
-BIN_IMAGE=blink.bin
-
CC=arm-none-eabi-gcc
OBJCOPY=arm-none-eabi-objcopy
-CFLAGS=-g -O2 -mlittle-endian -mthumb
-ifeq ($(CONFIG_STM32L_DISCOVERY), 1)
- CFLAGS+=-mcpu=cortex-m3 -DCONFIG_STM32L_DISCOVERY
-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
-endif
- CFLAGS+=-ffreestanding -nostdlib -nostdinc
+DEF_CFLAGS=-g -O2 -mlittle-endian -mthumb -ffreestanding -nostdlib -nostdinc
# to run from SRAM
-CFLAGS+=-Wl,-Ttext,0x20000000 -Wl,-e,0x20000000
+DEF_CFLAGS+=-Wl,-Ttext,0x20000000 -Wl,-e,0x20000000
# to write to flash then run
-# CFLAGS+=-Wl,-Ttext,0x08000000 -Wl,-e,0x08000000
+# DEF_CFLAGS+=-Wl,-Ttext,0x08000000 -Wl,-e,0x08000000
+
+CFLAGS_VL=$(DEF_CFLAGS) -mcpu=cortex-m3 -DCONFIG_STM32VL_DISCOVERY=1
+CFLAGS_L=$(DEF_CFLAGS) -mcpu=cortex-m3 -DCONFIG_STM32L_DISCOVERY
+CFLAGS_F4=$(DEF_CFLAGS) -mcpu=cortex-m4 -DCONFIG_STM32F4_DISCOVERY=1
-all: $(BIN_IMAGE)
+all: blink_32VL.elf blink_32L.elf blink_F4.elf
-$(BIN_IMAGE): $(EXECUTABLE)
+%.bin: %.elf
$(OBJCOPY) -O binary $^ $@
-$(EXECUTABLE): main.c
- $(CC) $(CFLAGS) $^ -o $@
+blink_32VL.elf: main.c
+ $(CC) $(CFLAGS_VL) $^ -o $@
+blink_32L.elf: main.c
+ $(CC) $(CFLAGS_L) $^ -o $@
+blink_F4.elf: main.c
+ $(CC) $(CFLAGS_F4) $^ -o $@
clean:
- rm -rf $(EXECUTABLE)
- rm -rf $(BIN_IMAGE)
+ rm -rf *.elf
+ rm -rf *.bin
.PHONY: all clean
#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 GPIOC 0x40011000 /* port C */
+#define GPIOC_CRH (GPIOC + 0x04) /* port configuration register high */
+#define LED_PORT_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 */
+#define LED_BLUE (1 << 8) /* port C, pin 8 */
+#define LED_GREEN (1 << 9) /* port C, pin 9 */
+#define LED_ORANGE 0
+#define LED_RED 0
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 0x40020400 /* port B */
-# define GPIOB_MODER (GPIOB + 0x00) /* port mode register */
-# define GPIOB_ODR (GPIOB + 0x14) /* port output data register */
+#define GPIOB 0x40020400 /* port B */
+#define GPIOB_MODER (GPIOB + 0x00) /* port mode register */
+#define LED_PORT_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 */
+#define LED_BLUE (1 << 6) /* port B, pin 6 */
+#define LED_GREEN (1 << 7) /* port B, pin 7 */
+#define LED_ORANGE 0
+#define LED_RED 0
static inline void setup_leds(void)
{
*(volatile uint32_t*)GPIOB_MODER |= (1 << (7 * 2)) | (1 << (6 * 2));
}
-static inline void switch_leds_on(void)
-{
- *(volatile uint32_t*)GPIOB_ODR = LED_BLUE | LED_GREEN;
-}
-
-static inline void switch_leds_off(void)
-{
- *(volatile uint32_t*)GPIOB_ODR = 0;
-}
-
#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 GPIOD_MODER (GPIOD + 0x00) /* port mode register */
+#define LED_PORT_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 */
+#define LED_GREEN (1 << 12) /* port D, pin 12 */
+#define LED_ORANGE (1 << 13) /* port D, pin 13 */
+#define LED_RED (1 << 14) /* port D, pin 14 */
+#define LED_BLUE (1 << 15) /* port D, pin 15 */
static inline void setup_leds(void)
{
(1 << (13 * 2)) | (1 << (14 * 2)) | (1 << (15 * 2));
}
+#else
+#error "Architecture must be defined!"
+#endif /* otherwise, error */
static inline void switch_leds_on(void)
{
- *(volatile uint32_t*)GPIOD_ODR = LED_GREEN | LED_ORANGE | LED_RED | LED_BLUE;
+ *(volatile uint32_t*)LED_PORT_ODR = LED_BLUE | LED_GREEN | LED_ORANGE | LED_RED;
}
static inline void switch_leds_off(void)
{
- *(volatile uint32_t*)GPIOD_ODR = 0;
+ *(volatile uint32_t*)LED_PORT_ODR = 0;
}
-#else
-#error "Architecture must be defined!"
-#endif /* otherwise, error */
-
-
#define delay() \
do { \
register unsigned int i; \