ATIM通道4输出PWM的设置
void MF_ATIM_TimerBase_Init(void){
FL_ATIM_InitTypeDef TimerBase_InitStruct;
TimerBase_InitStruct.clockSource = FL_RCC_ATIM_CLK_SOURCE_APB2CLK;
TimerBase_InitStruct.prescaler = 7;
TimerBase_InitStruct.counterMode = FL_ATIM_COUNTER_DIR_UP;
TimerBase_InitStruct.autoReload = 999;
TimerBase_InitStruct.autoReloadState = FL_ENABLE;
TimerBase_InitStruct.clockDivision = FL_ATIM_CLK_DIVISION_DIV1;
TimerBase_InitStruct.repetitionCounter = 0;
FL_ATIM_Init(ATIM, &TimerBase_InitStruct);
}
/**
* @briefATIM_FL_ATIM_CHANNEL_4_Channel4 Initialization function
* @paramvoid
* @retval None
*/
void MF_ATIM_FL_ATIM_CHANNEL_4_Channel4_Init(void)
{
FL_GPIO_InitTypeDef GPIO_InitStruct;
FL_ATIM_OC_InitTypeDef ATIM_InitStruct;
/* PA9 ATIM_CH4 */
GPIO_InitStruct.pin = FL_GPIO_PIN_9;
GPIO_InitStruct.mode = FL_GPIO_MODE_DIGITAL;
GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
GPIO_InitStruct.pull = FL_DISABLE;
GPIO_InitStruct.remapPin = FL_DISABLE;
FL_GPIO_Init(GPIOA, &GPIO_InitStruct);
ATIM_InitStruct.OCMode = FL_ATIM_OC_MODE_PWM1;
ATIM_InitStruct.OCState = FL_ENABLE;
ATIM_InitStruct.OCNState = FL_DISABLE;
ATIM_InitStruct.OCPolarity = FL_ATIM_OC_POLARITY_NORMAL;
ATIM_InitStruct.OCNPolarity = FL_ATIM_OC_POLARITY_NORMAL;
ATIM_InitStruct.OCFastMode = FL_DISABLE;
ATIM_InitStruct.OCPreload = FL_DISABLE;
ATIM_InitStruct.compareValue = 500;
ATIM_InitStruct.OCIdleState = FL_ATIM_OC_IDLE_STATE_LOW;
ATIM_InitStruct.OCETRFStatus = FL_DISABLE;
ATIM_InitStruct.OCNIdleState = FL_ATIM_OCN_IDLE_STATE_LOW;
FL_ATIM_OC_Init(ATIM, FL_ATIM_CHANNEL_4, &ATIM_InitStruct);
}
这是通过魔方生成的ATIM通道4输出PWM，为什么没有信号输出，不知道哪里不对，通道1、2、3都是正常的
引脚配置错误
/* PA9 ATIM_CH4 */
GPIO_InitStruct.pin = FL_GPIO_PIN_9;
GPIO_InitStruct.mode = FL_GPIO_MODE_DIGITAL;
GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
GPIO_InitStruct.pull = FL_DISABLE;
GPIO_InitStruct.remapPin = FL_DISABLE;
FL_GPIO_Init(GPIOA, &GPIO_InitStruct);
按照手册
pa9 ch4 数字功能 应该是 2，需要改成FL_ENABLE GPIO_InitStruct.remapPin = FL_ENABLE;
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