STM32CubeMX重定义PB5为TIM3_CH2存在问题
本帖最后由 zxs07 于 2017-2-22 21:46 编辑用STM32CubeMX重定义PB5为TIM3_CH2，产生PWM来驱动LED
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
TIM3初始化代码如下：
static void MX_TIM3_Init(void)
{
TIM_MasterConfigTypeDef sMasterConfig;
TIM_OC_InitTypeDef sConfigOC;
htim3.Instance = TIM3;
htim3.Init.Prescaler = 0;
htim3.Init.CounterMode = TIM_COUNTERMODE_UP;
htim3.Init.Period = 36000;
htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
if (HAL_TIM_PWM_Init(&htim3) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim3, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
sConfigOC.OCMode = TIM_OCMODE_PWM1;
sConfigOC.Pulse = 200;
sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfigOC.OCFastMode = TIM_OCFAST_ENABLE;
if (HAL_TIM_PWM_ConfigChannel(&htim3, &sConfigOC, TIM_CHANNEL_2) != HAL_OK)
{
Error_Handler();
}
HAL_TIM_MspPostInit(&htim3);
}
改变 sConfigOC.Pulse值，LED亮度不变，单步执行MX_TIM3_Init，至HAL_TIM_MspPostInit中的__HAL_AFIO_REMAP_TIM3_PARTIAL时，IAR无反应，程序无法继续调试， HAL_TIM_MspPostInit代码如下：
void HAL_TIM_MspPostInit(TIM_HandleTypeDef* htim)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(htim->Instance==TIM3)
{
/**TIM3 GPIO Configuration
PB5 ------> TIM3_CH2
*/
GPIO_InitStruct.Pin = LED3_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(LED3_GPIO_Port, &GPIO_InitStruct);
__HAL_AFIO_REMAP_TIM3_PARTIAL();
}
}
为何__HAL_AFIO_REMAP_TIM3_PARTIAL()重映射管脚出问题，如何解决？
附上main.c:
int main(void)
{
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
MX_TIM3_Init();
while (1)
{
for(uint32_t i=0;i<0xFFFFF;i++)
__NOP();
__HAL_TIM_SET_COMPARE(&htim3,TIM_CHANNEL_2,200);
HAL_GPIO_TogglePin(GPIOE, GPIO_PIN_5);
}
}
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{ Error_Handler();}
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{ Error_Handler();}
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(LED2_GPIO_Port, LED2_Pin, GPIO_PIN_SET);
/*Configure GPIO pin : LED2_Pin */
GPIO_InitStruct.Pin = LED2_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(LED2_GPIO_Port, &GPIO_InitStruct);
}
管脚重映射问题已解决，但PWM输出还是有问题，输出端口时钟已使能，使用HAL_TIM_PWM_Start(&htim3, TIM_CHANNEL_2)启动PWM输出， 调试过程中发现计数器已计数，使用__HAL_TIM_SetCompare(&htim3, TIM_CHANNEL_2,pwmval)来改变脉冲宽度（pwmval从0-最大），但LED亮度无变化，还有什么需要设置的呢？ Cube配置好后，还需要 手动开启pwm输出的。。默认是不输出的。。。
HAL_TIM_PWM_Start(&htim3, TIM_CHANNEL_2);
用这个函数可以直接改变pulse的
__HAL_TIM_SetCompare(&htim3, TIM_CHANNEL_2,(uint16_t)pwmval); 你在使用stm32cube配置时，先不要选TIM3_CH2，先选你要的管脚，此时应该是黄色的，然后在选TIM3_CH2，此时管脚为绿色的，试试看看行不行 本帖最后由 zoomdy 于 2017-2-22 12:40 编辑
至HAL_TIM_MspPostInit中的__HAL_AFIO_REMAP_TIM3_PARTIAL时，IAR无反应，程序无法继续调试
检查一下GPIOB和SYSCFG的时钟有没有打开。 初始化时钟 本帖最后由 zxs07 于 2017-2-22 21:51 编辑
zoomdy 发表于 2017-2-22 12:38
检查一下GPIOB和SYSCFG的时钟有没有打开。
谢谢，时钟STM32CubeMX配置时已打开 Paderboy 发表于 2017-2-22 08:42
Cube配置好后，还需要 手动开启pwm输出的。。默认是不输出的。。。
HAL_TIM_PWM_Start(&htim3, TIM_CHANNE ...
谢谢，本人新手，我添加到HAL_TIM_MspPostInit(&htim3)之前，故障依旧，应该添加到哪里?
再有感觉是在端口重新映射时出错，启不启动PWM输出应该不影响映射吧？ feiante 发表于 2017-2-22 08:13
你在使用stm32cube配置时，先不要选TIM3_CH2，先选你要的管脚，此时应该是黄色的，然后在选TIM3_CH2，此时 ...
谢谢，就是这么做的 先记号，我刚JTAG好像没问题，SWD出问题 本帖最后由 moon-362134 于 2017-2-23 09:44 编辑
https://www.stmcu.org.cn/module/forum/thread-605658-1-2.html参考这里 ，我想也可以二次重定义，不改CUBE
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