#include #include #include #include "stm32f10x.h" /* RCC外设复位寄存器字段定义 */ #define RCC_R_APB2RSTR REG_ENTITY(0x000C) #define RCC_F_APB2RSTR_AFIOEN REG_FIELD(0x000C, 0, 0) #define RCC_F_APB2RSTR_IOPAEN REG_FIELD(0x000C, 2, 2) #define RCC_F_APB2RSTR_IOPBEN REG_FIELD(0x000C, 3, 3) #define RCC_F_APB2RSTR_IOPCEN REG_FIELD(0x000C, 4, 4) #define RCC_F_APB2RSTR_IOPDEN REG_FIELD(0x000C, 5, 5) /* RCC外设使能寄存器字段定义 */ #define RCC_R_APB2ENR REG_ENTITY(0x0018) #define RCC_F_APB2ENR_AFIOEN REG_FIELD(0x0018, 0, 0) #define RCC_F_APB2ENR_IOPAEN REG_FIELD(0x0018, 2, 2) #define RCC_F_APB2ENR_IOPBEN REG_FIELD(0x0018, 3, 3) #define RCC_F_APB2ENR_IOPCEN REG_FIELD(0x0018, 4, 4) #define RCC_F_APB2ENR_IOPDEN REG_FIELD(0x0018, 5, 5) /* GPIO模式字段定义 */ #define GPIO_F_PIN0_MODE REG_FIELD(0x0000, 0, 1) #define GPIO_F_PIN1_MODE REG_FIELD(0x0000, 4, 5) #define GPIO_F_PIN2_MODE REG_FIELD(0x0000, 8, 9) #define GPIO_F_PIN3_MODE REG_FIELD(0x0000, 12, 13) #define GPIO_F_PIN4_MODE REG_FIELD(0x0000, 16, 17) #define GPIO_F_PIN5_MODE REG_FIELD(0x0000, 20, 21) #define GPIO_F_PIN6_MODE REG_FIELD(0x0000, 24, 25) #define GPIO_F_PIN7_MODE REG_FIELD(0x0000, 28, 29) #define GPIO_F_PIN8_MODE REG_FIELD(0x0004, 0, 1) #define GPIO_F_PIN9_MODE REG_FIELD(0x0004, 4, 5) #define GPIO_F_PIN10_MODE REG_FIELD(0x0004, 8, 9) #define GPIO_F_PIN11_MODE REG_FIELD(0x0004, 12, 13) #define GPIO_F_PIN12_MODE REG_FIELD(0x0004, 16, 17) #define GPIO_F_PIN13_MODE REG_FIELD(0x0004, 20, 21) #define GPIO_F_PIN14_MODE REG_FIELD(0x0004, 24, 25) #define GPIO_F_PIN15_MODE REG_FIELD(0x0004, 28, 29) #define GPIO_PIN_MODE_IN 0 #define GPIO_PIN_MODE_OUT_10MHZ 1 #define GPIO_PIN_MODE_OUT_2MHZ 2 #define GPIO_PIN_MODE_OUT_50MHZ 3 /* GPIO配置字段定义 */ #define GPIO_F_PIN0_CFG REG_FIELD(0x0000, 2, 3) #define GPIO_F_PIN1_CFG REG_FIELD(0x0000, 6, 7) #define GPIO_F_PIN2_CFG REG_FIELD(0x0000, 10, 11) #define GPIO_F_PIN3_CFG REG_FIELD(0x0000, 14, 15) #define GPIO_F_PIN4_CFG REG_FIELD(0x0000, 18, 19) #define GPIO_F_PIN5_CFG REG_FIELD(0x0000, 22, 23) #define GPIO_F_PIN6_CFG REG_FIELD(0x0000, 26, 27) #define GPIO_F_PIN7_CFG REG_FIELD(0x0000, 30, 31) #define GPIO_F_PIN8_CFG REG_FIELD(0x0004, 2, 3) #define GPIO_F_PIN9_CFG REG_FIELD(0x0004, 6, 7) #define GPIO_F_PIN10_CFG REG_FIELD(0x0004, 10, 11) #define GPIO_F_PIN11_CFG REG_FIELD(0x0004, 14, 15) #define GPIO_F_PIN12_CFG REG_FIELD(0x0004, 18, 19) #define GPIO_F_PIN13_CFG REG_FIELD(0x0004, 22, 23) #define GPIO_F_PIN14_CFG REG_FIELD(0x0004, 26, 27) #define GPIO_F_PIN15_CFG REG_FIELD(0x0004, 30, 31) #define GPIO_PIN_CFG_IN_ANA 0 #define GPIO_PIN_CFG_IN_NOPULL 1 #define GPIO_PIN_CFG_IN_PULL 2 #define GPIO_PIN_CFG_OUT_PULL 0 #define GPIO_PIN_CFG_OUT_NOPULL 1 #define GPIO_PIN_CFG_OUT_AF_PULL 2 #define GPIO_PIN_CFG_OUT_AF_NOPULL 3 /* GPIO输入字段定义 */ #define GPIO_F_PIN0_IN REG_FIELD(0x0008, 0, 0) #define GPIO_F_PIN1_IN REG_FIELD(0x0008, 1, 1) #define GPIO_F_PIN2_IN REG_FIELD(0x0008, 2, 2) #define GPIO_F_PIN3_IN REG_FIELD(0x0008, 3, 3) #define GPIO_F_PIN4_IN REG_FIELD(0x0008, 4, 4) #define GPIO_F_PIN5_IN REG_FIELD(0x0008, 5, 5) #define GPIO_F_PIN6_IN REG_FIELD(0x0008, 6, 6) #define GPIO_F_PIN7_IN REG_FIELD(0x0008, 7, 7) #define GPIO_F_PIN8_IN REG_FIELD(0x0008, 8, 8) #define GPIO_F_PIN9_IN REG_FIELD(0x0008, 9, 9) #define GPIO_F_PIN10_IN REG_FIELD(0x0008, 10, 10) #define GPIO_F_PIN11_IN REG_FIELD(0x0008, 11, 11) #define GPIO_F_PIN12_IN REG_FIELD(0x0008, 12, 12) #define GPIO_F_PIN13_IN REG_FIELD(0x0008, 13, 13) #define GPIO_F_PIN14_IN REG_FIELD(0x0008, 14, 14) #define GPIO_F_PIN15_IN REG_FIELD(0x0008, 15, 15) /* GPIO输出字段定义 */ #define GPIO_F_PIN0_OUT REG_FIELD(0x000C, 0, 0) #define GPIO_F_PIN1_OUT REG_FIELD(0x000C, 1, 1) #define GPIO_F_PIN2_OUT REG_FIELD(0x000C, 2, 2) #define GPIO_F_PIN3_OUT REG_FIELD(0x000C, 3, 3) #define GPIO_F_PIN4_OUT REG_FIELD(0x000C, 4, 4) #define GPIO_F_PIN5_OUT REG_FIELD(0x000C, 5, 5) #define GPIO_F_PIN6_OUT REG_FIELD(0x000C, 6, 6) #define GPIO_F_PIN7_OUT REG_FIELD(0x000C, 7, 7) #define GPIO_F_PIN8_OUT REG_FIELD(0x000C, 8, 8) #define GPIO_F_PIN9_OUT REG_FIELD(0x000C, 9, 9) #define GPIO_F_PIN10_OUT REG_FIELD(0x000C, 10, 10) #define GPIO_F_PIN11_OUT REG_FIELD(0x000C, 11, 11) #define GPIO_F_PIN12_OUT REG_FIELD(0x000C, 12, 12) #define GPIO_F_PIN13_OUT REG_FIELD(0x000C, 13, 13) #define GPIO_F_PIN14_OUT REG_FIELD(0x000C, 14, 14) #define GPIO_F_PIN15_OUT REG_FIELD(0x000C, 15, 15) /* GPIO位设置/清除字段定义 */ #define GPIO_F_PIN0_SET REG_FIELD(0x0010, 0, 0) #define GPIO_F_PIN1_SET REG_FIELD(0x0010, 1, 1) #define GPIO_F_PIN2_SET REG_FIELD(0x0010, 2, 2) #define GPIO_F_PIN3_SET REG_FIELD(0x0010, 3, 3) #define GPIO_F_PIN4_SET REG_FIELD(0x0010, 4, 4) #define GPIO_F_PIN5_SET REG_FIELD(0x0010, 5, 5) #define GPIO_F_PIN6_SET REG_FIELD(0x0010, 6, 6) #define GPIO_F_PIN7_SET REG_FIELD(0x0010, 7, 7) #define GPIO_F_PIN8_SET REG_FIELD(0x0010, 8, 8) #define GPIO_F_PIN9_SET REG_FIELD(0x0010, 9, 9) #define GPIO_F_PIN10_SET REG_FIELD(0x0010, 10, 10) #define GPIO_F_PIN11_SET REG_FIELD(0x0010, 11, 11) #define GPIO_F_PIN12_SET REG_FIELD(0x0010, 12, 12) #define GPIO_F_PIN13_SET REG_FIELD(0x0010, 13, 13) #define GPIO_F_PIN14_SET REG_FIELD(0x0010, 14, 14) #define GPIO_F_PIN15_SET REG_FIELD(0x0010, 15, 15) #define GPIO_F_PIN0_CLR REG_FIELD(0x0010, 16, 16) #define GPIO_F_PIN1_CLR REG_FIELD(0x0010, 17, 17) #define GPIO_F_PIN2_CLR REG_FIELD(0x0010, 18, 18) #define GPIO_F_PIN3_CLR REG_FIELD(0x0010, 19, 19) #define GPIO_F_PIN4_CLR REG_FIELD(0x0010, 20, 20) #define GPIO_F_PIN5_CLR REG_FIELD(0x0010, 21, 21) #define GPIO_F_PIN6_CLR REG_FIELD(0x0010, 22, 22) #define GPIO_F_PIN7_CLR REG_FIELD(0x0010, 23, 23) #define GPIO_F_PIN8_CLR REG_FIELD(0x0010, 24, 24) #define GPIO_F_PIN9_CLR REG_FIELD(0x0010, 25, 25) #define GPIO_F_PIN10_CLR REG_FIELD(0x0010, 26, 26) #define GPIO_F_PIN11_CLR REG_FIELD(0x0010, 27, 27) #define GPIO_F_PIN12_CLR REG_FIELD(0x0010, 28, 28) #define GPIO_F_PIN13_CLR REG_FIELD(0x0010, 29, 29) #define GPIO_F_PIN14_CLR REG_FIELD(0x0010, 30, 30) #define GPIO_F_PIN15_CLR REG_FIELD(0x0010, 31, 31) #define LED0_OUT GPIO_F_PIN2_OUT #define LED1_OUT GPIO_F_PIN8_OUT /* LED闪烁定时器：频率10Hz */ static void on_led1_timer(void *cb_data, kevent_t *e) { ktimer_event_t *timer = (ktimer_event_t*)e; e->bp++; /* 设置LED */ REG_WRITE_FIELD(GPIOA_BASE, LED1_OUT, (e->bp & 1)); ktimer_start_expiry(timer, ktimer_expiry_get(timer) + ktime_ms_to_tick(1000)); } /* LED闪烁定时器：频率2Hz */ static void on_led0_timer(void *cb_data, kevent_t *e) { ktimer_event_t *timer = (ktimer_event_t*)e; uint8_t *bpd = &e->bp; bpd_begin(2); while (1) { /* 打开LED */ REG_WRITE_FIELD(GPIOD_BASE, LED0_OUT, 0); ktimer_start_expiry(timer, ktimer_expiry_get(timer) + ktime_us_to_tick(12500)); bpd_yield(1); /* 关闭LED */ REG_WRITE_FIELD(GPIOD_BASE, LED0_OUT, 1); ktimer_start_expiry(timer, ktimer_expiry_get(timer) + ktime_us_to_tick(12500)); bpd_yield(2); } bpd_end(); } /* 定义两个定时器 */ static ktimer_event_t led0_timer = KTIMER_EVENT_STATIC_INIT(led0_timer, on_led0_timer, 0, KEVENT_PRIORITY_LOWER_GROUP); static ktimer_event_t led1_timer = KTIMER_EVENT_STATIC_INIT(led1_timer, on_led1_timer, 0, KEVENT_PRIORITY_MIDDLE_GROUP); int main() { NVIC_SetPriority(PendSV_IRQn, 15); /* 初始化systick驱动 */ cortex_m_systick_init(); /* 打开GPIO ABCD门控 */ REG_WRITE_FIELDS(RCC_BASE, RCC_F_APB2ENR_IOPAEN, 1, RCC_F_APB2ENR_IOPDEN, 1); /* 配置为输出推免模式 */ REG_WRITE_FIELDS(GPIOD_BASE, GPIO_F_PIN2_MODE, GPIO_PIN_MODE_OUT_50MHZ, GPIO_F_PIN2_CFG, GPIO_PIN_CFG_OUT_PULL); REG_WRITE_FIELDS(GPIOA_BASE, GPIO_F_PIN8_MODE, GPIO_PIN_MODE_OUT_50MHZ, GPIO_F_PIN8_CFG, GPIO_PIN_CFG_OUT_PULL); /* 启动LED闪烁定时器 */ ktimer_start_ms(&led1_timer, 100); ktimer_start_ms(&led0_timer, 106); while (1); }