Posted on October 14, 2016 at 04:23
Dear All,
I am trying to apply TIM14 along with pwm and put them to GPIO.
The timer setting driver code is here,( one pulse mode has chosen)
/* TIM14 init function */
static void MX_TIM14_Init(void)
{
TIM_IC_InitTypeDef sConfigIC;
htimInstance = TIM14;
htimInit.Prescaler = 0;
htimInit.CounterMode = TIM_COUNTERMODE_UP;
htimInit.Period = 0;
htimInit.ClockDivision = TIM_CLOCKDIVISION_DIV1;
if (HAL_TIM_Base_Init(&htim14) != HAL_OK)
{
Error_Handler();
}
if (HAL_TIM_IC_Init(&htim14) != HAL_OK)
{
Error_Handler();
}
if (HAL_TIM_OnePulse_Init(&htim14, TIM_OPMODE_SINGLE) != HAL_OK)
{
Error_Handler();
}
sConfigIC.ICPolarity = TIM_INPUTCHANNELPOLARITY_RISING;
sConfigIC.ICSelection = TIM_ICSELECTION_DIRECTTI;
sConfigIC.ICPrescaler = TIM_ICPSC_DIV1;
sConfigIC.ICFilter = 0;
if (HAL_TIM_IC_ConfigChannel(&htim14, &sConfigIC, TIM_CHANNEL_1) != HAL_OK)
{
Error_Handler();
}
if (HAL_TIMEx_RemapConfig(&htim14, TIM_TIM14_MCO) != HAL_OK)
{
Error_Handler();
}
}
You can see here is 1 channel, after that can I initiate my PWM in this way?
After calling PULSE variable,
Configure the PWM channels #########################################*/
/* Common configuration for all channels */
sConfig.OCMode = TIM_OCMODE_PWM1;
sConfig.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfig.OCFastMode = TIM_OCFAST_DISABLE;
sConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sConfig.OCIdleState = TIM_OCIDLESTATE_RESET;
sConfig.OCNIdleState = TIM_OCNIDLESTATE_RESET;
/* Set the pulse value for channel 1 */
sConfig.Pulse = PULSE1_VALUE;
if (HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_1) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
How about adding this thing from example?
Start PWM signals generation #######################################*/
/* Start channel 1 */
if (HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
{
/* PWM Generation Error */
Error_Handler();
}
Now how can I use this pwm to GPIO ?
From document UM1785, peripheral Control function gives thisAPI,
HAL_TIMEx_RemapConfig(&htim14, TIM_TIM14_MCO)
How I can useCallback function?
People use
HAL_TIM_MspPostInit to use GPIO.I have no way because, my circuit does not connect with TIM2/3.
STM32Cube_FW_F0_V1.6.0\Projects\STM32F070RB-Nucleo\Examples\TIM\TIM_PWMInput\Src
andSTM32Cube_FW_F0_V1.6.0\Projects\STM32F070RB-Nucleo\Examples\TIM\TIM_InputCapture\Src
Those examples are using TIM1/2!
Kindly, help me please.
#output-compare #pwm #timer-synchronisation
