使用stm32写一个无刷电机驱动程序
时间: 2024-03-08 17:44:57 浏览: 137
好的,下面是一个简单的无刷电机驱动程序的示例代码,基于STM32的HAL库实现:
```c
#include "main.h"
#include "stm32f4xx_hal.h"
// 定义电机相序表
uint8_t bldc_table[6][3] = {
{0, 1, 3},
{1, 0, 3},
{1, 3, 0},
{3, 1, 0},
{3, 0, 1},
{0, 3, 1},
};
// 定义电机当前相序
uint8_t bldc_phase = 0;
// 初始化电机PWM输出
void bldc_pwm_init(void)
{
TIM_HandleTypeDef htim2;
// 初始化定时器
htim2.Instance = TIM2;
htim2.Init.Prescaler = 0;
htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
htim2.Init.Period = 4095;
htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
HAL_TIM_Base_Init(&htim2);
// 初始化PWM输出
TIM_OC_InitTypeDef sConfigOC;
sConfigOC.OCMode = TIM_OCMODE_PWM1;
sConfigOC.Pulse = 0;
sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_1);
HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_2);
HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_3);
HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_1);
HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_2);
HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_3);
}
// 更新电机相序
void bldc_update_phase(void)
{
// 更新相序
bldc_phase++;
if (bldc_phase >= 6) {
bldc_phase = 0;
}
// 更新PWM输出
TIM_HandleTypeDef htim2;
htim2.Instance = TIM2;
TIM_OC_InitTypeDef sConfigOC;
sConfigOC.OCMode = TIM_OCMODE_PWM1;
sConfigOC.Pulse = 4095;
sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET;
sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_RESET;
sConfigOC.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_RESET;
sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET;
sConfigOC.Pulse = 0;
for (uint8_t i = 0; i < 3; i++) {
uint8_t chan = bldc_table[bldc_phase][i];
switch (chan) {
case 0:
HAL_TIM_PWM_Stop(&htim2, TIM_CHANNEL_1);
HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_1);
HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_1);
break;
case 1:
HAL_TIM_PWM_Stop(&htim2, TIM_CHANNEL_2);
HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_2);
HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_2);
break;
case 2:
HAL_TIM_PWM_Stop(&htim2, TIM_CHANNEL_3);
HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_3);
HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_3);
break;
}
}
}
int main(void)
{
// 初始化硬件
HAL_Init();
bldc_pwm_init();
// 循环更新电机相序
while (1) {
bldc_update_phase();
HAL_Delay(1000);
}
}
```
请注意,这只是一个简单的示例代码,实际情况可能会更加复杂。如果您需要更详细的信息,请参考STM32的官方文档和HAL库文档。