豌豆爹 发表于 2023-10-18 09:18

stm32F207ZET6 TIM1_CH4的复用口PE14不输出pwm波形

/* TIM1 init function */
void MX_TIM1_Init(uint32_t arr,uint32_t psc)
{

/* USER CODE BEGIN TIM1_Init 0 */

/* USER CODE END TIM1_Init 0 */

TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
TIM_OC_InitTypeDef sConfigOC = {0};
TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig = {0};

/* USER CODE BEGIN TIM1_Init 1 */

/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = psc;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = arr;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
if (HAL_TIM_PWM_Init(&htim1) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
sConfigOC.OCMode = TIM_OCMODE_PWM1;
sConfigOC.Pulse = (arr * 3)/4;
sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;

//sConfigOC.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET;
sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_SET;
if (HAL_TIM_PWM_ConfigChannel(&htim1, &sConfigOC, TIM_CHANNEL_4) != HAL_OK)
{
Error_Handler();
}
sBreakDeadTimeConfig.OffStateRunMode = TIM_OSSR_DISABLE;
sBreakDeadTimeConfig.OffStateIDLEMode = TIM_OSSI_DISABLE;
sBreakDeadTimeConfig.LockLevel = TIM_LOCKLEVEL_OFF;
sBreakDeadTimeConfig.DeadTime = 0;
sBreakDeadTimeConfig.BreakState = TIM_BREAK_DISABLE;
sBreakDeadTimeConfig.BreakPolarity = TIM_BREAKPOLARITY_HIGH;
sBreakDeadTimeConfig.AutomaticOutput = TIM_AUTOMATICOUTPUT_DISABLE;
if (HAL_TIMEx_ConfigBreakDeadTime(&htim1, &sBreakDeadTimeConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM1_Init 2 */

/* USER CODE END TIM1_Init 2 */
HAL_TIM_MspPostInit(&htim1);

}

main函数里while按计数设置tim1_ch4的占空比;


while (1)
{
/* USER CODE END WHILE */

      HAL_Delay(500);
      __HAL_TIM_SET_COMPARE(&htim1,TIM_CHANNEL_4,plus_cnt);
      //drv8424_step(200,half_T);

/* USER CODE BEGIN 3 */
}

LOVEEVER 发表于 2023-10-21 10:57

楼主，你这个STM32的建议在ST专区进行咨询

小夏天的大西瓜 发表于 2023-10-28 21:20

感觉还是设置的问题导致的

tpgf 发表于 2023-11-6 16:07

没有对io口的初始化代码啊

wowu 发表于 2023-11-6 16:46

这个引脚的复用功能得在io设置的时候定义一下啊

AdaMaYun 发表于 2023-11-6 20:29

楼主这个需要IO口复用设置

xiaoqizi 发表于 2023-11-6 21:13

好像发错版块了吧 应该在st的版块啊

wakayi 发表于 2023-11-6 21:51

如果换成其他引脚就没有问题了吗

木木guainv 发表于 2023-11-7 08:09

楼主把这个引脚定义为什么功能了呢

磨砂 发表于 2023-11-7 23:23

定时器和时钟都有配置代码 但是没有引脚的配置代码啊

玫瑰凋零日记 发表于 2025-8-30 15:16

检查步骤：1. 确认 GPIO 配置，PE14 需设为复用推挽输出，复用功能选 TIM1_CH4；2. 检查 TIM1 时钟是否使能；3. 确认 PWM 模式正确（如模式 1/2），ARR、CCR4 值设置合理；4. 确保 CCER 寄存器中 CC4E 位已置 1 使能输出；5. 检查是否开启 TIM1 计数器（CEN=1）。
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