can't able to read capture and compare values on STM32F0 Board

jagadeesh · ‎2015-10-14

Posted on October 14, 2015 at 15:35

hi,

I am trying to input capture and output compare values but i cant able to read those values is there any mistake in my code.I enabled clocks also.But still I am getting this issue.Can any one guide me please.

// init function

void MX_TIM15_Init(void)

{

TIM_MasterConfigTypeDef sMasterConfig;

TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig;

TIM_IC_InitTypeDef sConfigIC;

TIM_OC_InitTypeDef sConfigOC;

htim15.Instance = TIM15;

htim15.Init.Prescaler = 0;

htim15.Init.CounterMode = TIM_COUNTERMODE_UP;

htim15.Init.Period = 16666;

htim15.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;

htim15.Init.RepetitionCounter = 0;

HAL_TIM_IC_Init(&htim15);

HAL_TIM_OC_Init(&htim15);

sMasterConfig.MasterOutputTrigger = TIM_TRGO_ENABLE;

sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;

HAL_TIMEx_MasterConfigSynchronization(&htim15, &sMasterConfig);

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;

HAL_TIMEx_ConfigBreakDeadTime(&htim15, &sBreakDeadTimeConfig);

sConfigIC.ICPolarity = TIM_INPUTCHANNELPOLARITY_FALLING;

sConfigIC.ICSelection = TIM_ICSELECTION_DIRECTTI;

sConfigIC.ICPrescaler = TIM_ICPSC_DIV2;

sConfigIC.ICFilter = 0;

HAL_TIM_IC_ConfigChannel(&htim15, &sConfigIC, TIM_CHANNEL_1);

sConfigOC.OCMode = TIM_OCMODE_TIMING;

sConfigOC.Pulse = 0;

sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;

sConfigOC.OCNPolarity = TIM_OCNPOLARITY_HIGH;

sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;

sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET;

sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_RESET;

TIM_OC2_SetConfig( (TIM_TypeDef* )&htim15.Instance,&sConfigOC);

HAL_TIM_OC_ConfigChannel(&htim15, &sConfigOC, TIM_CHANNEL_2);

HAL_TIM_PWM_Start(&htim15, TIM_CHANNEL_2);

HAL_TIM_OC_Start_IT(&htim15,TIM_CHANNEL_2);

HAL_TIM_IC_Start_IT(&htim15,TIM_CHANNEL_1);

__HAL_TIM_ENABLE_IT(&htim15,TIM_IT_CC2); //output compare

__HAL_TIM_ENABLE_IT(&htim15,TIM_IT_CC1);

}

//interrupt functions

void HAL_TIM_OC_DelayElapsedCallback(TIM_HandleTypeDef *htim)

{

uint32_t OutPutCompare = 0;

OutPutCompare = HAL_TIM_ReadCapturedValue(&htim15, TIM_CHANNEL_2 );

__HAL_TIM_SET_COUNTER(&htim15,DaliOutPutCompare + 16666 );

__HAL_TIM_CLEAR_IT(&htim15,TIM_IT_CC2);

__HAL_TIM_CLEAR_FLAG(&htim15, TIM_FLAG_CC2);

}

void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef *htim)

{

uint32_t InputCapture;

InputCapture = HAL_TIM_ReadCapturedValue(&htim15, TIM_CHANNEL_1 );

__HAL_TIM_SET_COUNTER(&htim15,DaliInputCapture + 16666 );

__HAL_TIM_CLEAR_IT(&htim15,TIM_IT_CC1);

__HAL_TIM_CLEAR_FLAG(&htim15, TIM_FLAG_CC1);

}

#stm32f0-timer