C++ (Cpp) TSL_acq_InitGPIOs Examples

Example #1

File: tsl_acq_stm32f3xx.c Project: avr-master/M_Control_panel

/**
  * @brief  Initializes the acquisition module.
  * @param  None
  * @retval Status
  */
TSL_Status_enum_T TSL_acq_Init(void)
{

#if TSLPRM_TSC_GPIO_CONFIG > 0
    TSL_acq_InitGPIOs();
#endif

    // Enable TSC clock
    RCC->AHBENR |= RCC_AHBENR_TSEN;

    // TSC enabled
    TSC->CR = 0x01;

    // Set CTPH
#if TSLPRM_TSC_CTPH > 0
    TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_CTPH << 28) & 0xF0000000;
#endif

    // Set CTPL
#if TSLPRM_TSC_CTPL > 0
    TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_CTPL << 24) & 0x0F000000;
#endif

    // Set SpreadSpectrum
#if TSLPRM_TSC_USE_SS > 0
    TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_USE_SS << 16) & 0x00010000;
    TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_SSD << 17) & 0x00FE0000;
    TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_SSPSC << 15) & 0x00008000;
#endif

    // Set Prescaler
#if TSLPRM_TSC_PGPSC > 0
    TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_PGPSC << 12) & 0x00007000;
#endif

    // Set Max Count
#if TSLPRM_TSC_MCV > 0
    TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_MCV << 5) & 0x000000E0;
#endif

    // Set IO default in Output PP Low to discharge all capacitors
    TSC->CR &= (uint32_t)(~(1 << 4));

    // Set Synchronization Mode
#if TSLPRM_TSC_AM > 0

    // Set Synchronization Pin in Alternate-Function mode
#if TSLPRM_TSC_SYNC_PIN == 0 // PB08
    RCC->AHBENR |= RCC_AHBENR_GPIOBEN; // Set GPIOB clock
    GPIOB->MODER  &= 0xFFFCFFFF;
    GPIOB->MODER  |= 0x00020000;
    GPIOB->AFR[1] |= 0x00000003;
#endif
#if TSLPRM_TSC_SYNC_PIN == 1 // PB10
    RCC->AHBENR |= RCC_AHBENR_GPIOBEN; // Set GPIOB clock
    GPIOB->MODER  &= 0xFFCFFFFF;
    GPIOB->MODER  |= 0x00200000;
    GPIOB->AFR[1] |= 0x00000300;
#endif
#if TSLPRM_TSC_SYNC_PIN == 2 // PA15
    RCC->AHBENR |= RCC_AHBENR_GPIOAEN; // Set GPIOA clock
    GPIOA->MODER  &= 0x3FFFFFFF;
    GPIOA->MODER  |= 0x80000000;
    GPIOA->AFR[1] |= 0x30000000;
#endif

    // Set Synchronization Polarity
    TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_SYNC_POL << 3) & 0x00000008;

    // Set acquisition mode
    TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_AM << 2) & 0x00000004;

#endif

#if TSLPRM_USE_ACQ_INTERRUPT > 0

    // Set both EOA and MCE interrupts
    TSC->IER |= 0x03;

    // Configure NVIC
    NVIC_SetPriority(EXTI2_TS_IRQn, 0);
    NVIC_EnableIRQ(EXTI2_TS_IRQn);

#endif

    // Initialize the delay that will be used to discharge the capacitors
    DelayDischarge = (uint32_t)((TSLPRM_DELAY_DISCHARGE_ALL * (uint32_t)(SystemCoreClock/1000000)) / 72);

    return TSL_STATUS_OK;

}

Example #2

File: tsl_acq_stm32f0xx.c Project: erwinek/stm32

/**
  * @brief  Initializes the acquisition module.
  * @param  None
  * @retval Status
  */
TSL_Status_enum_T TSL_acq_Init(void)
{

#if TSLPRM_TSC_GPIO_CONFIG > 0
  TSL_acq_InitGPIOs();
#endif

  // Enable TSC clock
  RCC->AHBENR |= RCC_AHBENR_TSEN;

  // TSC enabled
  TSC->CR = 0x01;

  // Set CTPH
  TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_CTPH << 28) & 0xF0000000;

  // Set CTPL
  TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_CTPL << 24) & 0x0F000000;

  // Set SpreadSpectrum
  TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_USE_SS << 16) & 0x00010000;
  TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_SSD << 17) & 0x00FE0000;
  TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_SSPSC << 15) & 0x00008000;

  // Set Prescaler
  TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_PGPSC << 12) & 0x00007000;

  // Set Max Count
  TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_MCV << 5) & 0x000000E0;

  // Set IO default in Output PP Low to discharge all capacitors
  TSC->CR &= (uint32_t)(~(1 << 4));

  // Set Synchronization Mode
#if TSLPRM_TSC_AM > 0

  // Set Synchronization Pin in Alternate-Function mode
  RCC->AHBENR |= RCC_AHBENR_GPIOBEN; // Set GPIOB clock

#if TSLPRM_TSC_SYNC_PIN == 0 // PB08
  GPIOB->MODER  &= 0xFFFCFFFF;
  GPIOB->MODER  |= 0x00020000;
  GPIOB->AFR[1] |= 0x00000003;
#else // PB10
  GPIOB->MODER  &= 0xFFCFFFFF;
  GPIOB->MODER  |= 0x00200000;
  GPIOB->AFR[1] |= 0x00000300;
#endif

  // Set Synchronization Polarity
  TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_SYNC_POL << 3) & 0x00000008;

#endif

  // Set acquisition mode
  TSC->CR |= (uint32_t)((uint32_t)TSLPRM_TSC_AM << 2) & 0x00000004;

#if TSLPRM_USE_ACQ_INTERRUPT > 0

  // Set both EOA and MCE interrupts
  TSC->IER |= 0x03;

  // Configure NVIC
  NVIC_SetPriority(TS_IRQn, 0);
  NVIC_EnableIRQ(TS_IRQn);

#endif

  return TSL_STATUS_OK;

}