Posted on March 06, 2017 at 17:48
Hi
When TIM2 of this device is configured according to the screenshot, the following code will be generated:
void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* tim_baseHandle)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(tim_baseHandle->Instance==TIM1)
{
/* USER CODE BEGIN TIM1_MspInit 0 */
/* USER CODE END TIM1_MspInit 0 */
/* Peripheral clock enable */
__HAL_RCC_TIM1_CLK_ENABLE();
/* USER CODE BEGIN TIM1_MspInit 1 */
/* USER CODE END TIM1_MspInit 1 */
}
else if(tim_baseHandle->Instance==TIM2)
{
/* USER CODE BEGIN TIM2_MspInit 0 */
/* USER CODE END TIM2_MspInit 0 */
/* Peripheral clock enable */
__HAL_RCC_TIM2_CLK_ENABLE();
/**TIM2 GPIO Configuration
PA0 ------> TIM2_ETR
*/
GPIO_InitStruct.Pin = GPIO_PIN_0;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
// This line is missing:
GPIO_InitStruct.Alternate = GPIO_AF14_TIM2;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* USER CODE BEGIN TIM2_MspInit 1 */
/* USER CODE END TIM2_MspInit 1 */
}
}
�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?
The line marked as missing becomes not generated leaving the pin as output.
Besides this error the wording within the Configuration of TIM2 -> GPIO is also missleading, telling the user
that this is an output pin. 'Maximum Output Speed: ...'
CubeMX 4.19
STM32Cube_FW_L4_V1.6.0.
Dieter
