3 typedef unsigned int uint32_t;
6 /* hardware configuration */
8 #if CONFIG_STM32VL_DISCOVERY
10 #define GPIOC 0x40011000 /* port C */
11 #define GPIOC_CRH (GPIOC + 0x04) /* port configuration register high */
12 #define LED_PORT_ODR (GPIOC + 0x0c) /* port output data register */
14 #define LED_BLUE (1 << 8) /* port C, pin 8 */
15 #define LED_GREEN (1 << 9) /* port C, pin 9 */
19 static inline void setup_leds(void)
21 *(volatile uint32_t*)GPIOC_CRH = 0x44444411;
24 #elif CONFIG_STM32L_DISCOVERY
26 #define GPIOB 0x40020400 /* port B */
27 #define GPIOB_MODER (GPIOB + 0x00) /* port mode register */
28 #define LED_PORT_ODR (GPIOB + 0x14) /* port output data register */
30 #define LED_BLUE (1 << 6) /* port B, pin 6 */
31 #define LED_GREEN (1 << 7) /* port B, pin 7 */
35 static inline void setup_leds(void)
37 /* configure port 6 and 7 as output */
38 *(volatile uint32_t*)GPIOB_MODER |= (1 << (7 * 2)) | (1 << (6 * 2));
41 #elif CONFIG_STM32F4_DISCOVERY
43 #define GPIOD 0x40020C00 /* port D */
44 #define GPIOD_MODER (GPIOD + 0x00) /* port mode register */
45 #define LED_PORT_ODR (GPIOD + 0x14) /* port output data register */
47 #define LED_GREEN (1 << 12) /* port D, pin 12 */
48 #define LED_ORANGE (1 << 13) /* port D, pin 13 */
49 #define LED_RED (1 << 14) /* port D, pin 14 */
50 #define LED_BLUE (1 << 15) /* port D, pin 15 */
55 static inline void setup_leds(void)
57 *(volatile uint32_t*)GPIOD_MODER |= (1 << (12 * 2)) | (1 << (13 * 2)) |
58 (1 << (13 * 2)) | (1 << (14 * 2)) | (1 << (15 * 2));
62 #error "Architecture must be defined!"
63 #endif /* otherwise, error */
65 static inline void switch_leds_on(void)
67 *(volatile uint32_t*)LED_PORT_ODR = LED_BLUE | LED_GREEN | LED_ORANGE | LED_RED;
70 static inline void switch_leds_off(void)
72 *(volatile uint32_t*)LED_PORT_ODR = 0;
77 register unsigned int i; \
78 for (i = 0; i < 1000000; ++i) \
79 __asm__ __volatile__ ("nop\n\t":::"memory"); \
82 /* static void __attribute__((naked)) __attribute__((used)) main(void) */