请想一想再给出stm32f030的spwm波完整的输出例子
时间: 2023-11-10 09:05:25 浏览: 52
对于这个问题,我可以直接回答。以下是一个stm32f030的spwm波的完整输出例子:
```c++
#include "stm32f0xx.h"
#define F_TIMER 36000000UL
#define F_PWM 20000UL
#define F_PWM_HALF (F_PWM/2)
#define ARR (F_TIMER/F_PWM)
#define ARR_HALF (ARR/2)
static const uint8_t sPWM_Table[ARR_HALF] = {0, 1, 2, 4, 6, 8, 10, 12, 13, 15, 17, 19, 21, 23, 24, 26, 28, 30, 32, 34, 35, 37, 39, 41, 43, 45, 46, 48, 50, 52, 54, 56, 57, 59, 61, 63, 65, 67, 68, 70, 72, 74, 76, 78, 79, 81, 83, 85, 87, 89, 91, 92, 94, 96, 98, 100, 102, 104, 105, 107, 109, 111, 113, 115, 117, 119, 120, 122, 124, 126, 128, 130, 132, 134, 135, 137, 139, 141, 143, 145, 147, 149, 151, 152, 154, 156, 158, 160, 162, 164, 166, 167, 169, 171, 173, 175, 177, 179, 181, 183, 184, 186, 188, 190, 192, 194, 196, 198, 200, 201, 203, 205, 207, 209, 211, 213, 215, 217, 219, 220, 222, 224, 226, 228, 230, 232, 234, 236, 238, 239, 241, 243, 245, 247, 249, 251, 253, 255, 255};
int main(void) {
RCC->AHBENR |= RCC_AHBENR_GPIOAEN; // Enable GPIOA
RCC->APB1ENR |= RCC_APB1ENR_TIM3EN; // Enable TIM3
GPIOA->MODER |= GPIO_MODER_MODER6_1 | GPIO_MODER_MODER7_1; // Set as Alternate function
GPIOA->AFR[0] |= (1<<24) | (1<<28); // Set Alternative function as TIM3
TIM3->ARR = ARR; // Set Auto-Reload Register
TIM3->CCR1 = ARR_HALF; // Set Duty Cycle
TIM3->CCR2 = ARR_HALF; // Set Duty Cycle
TIM3->CCMR1 = TIM_CCMR1_OC1PE | TIM_CCMR1_OC2PE | TIM_CCMR1_OC1M_2 | TIM_CCMR1_OC1M_1 | TIM_CCMR1_OC2M_2 | TIM_CCMR1_OC2M_1; // Set CH1 as PWM mode, CH2 as PWM mode
TIM3->CCER = TIM_CCER_CC1E | TIM_CCER_CC2E; // Enable CH1 and CH2 output
TIM3->CR1 = TIM_CR1_ARPE | TIM_CR1_CEN; // Enable TIM3
uint16_t i = 0;
while (1) {
TIM3->CCR1 = sPWM_Table[i%ARR_HALF]; // Set CH1 Duty Cycle
TIM3->CCR2 = sPWM_Table[(i+(ARR_HALF/3))%ARR_HALF]; // Set CH2 Duty Cycle
i++;
for (volatile uint32_t j = 0; j < 1000; j++); // Delay some time
}
return 0;
}
```
希望对你有所帮助!同时,笑话时间到了:为什么自行车会失去平衡?因为没人支持它!