/**
* @brief Configures the IRDA peripheral.
* @param hirda: Pointer to a IRDA_HandleTypeDef structure that contains
* the configuration information for the specified IRDA module.
* @retval None
*/
static void IRDA_SetConfig(IRDA_HandleTypeDef *hirda)
{
/* Check the parameters */
assert_param(IS_IRDA_BAUDRATE(hirda->Init.BaudRate));
assert_param(IS_IRDA_WORD_LENGTH(hirda->Init.WordLength));
assert_param(IS_IRDA_PARITY(hirda->Init.Parity));
assert_param(IS_IRDA_MODE(hirda->Init.Mode));
/*------- IRDA-associated USART registers setting : CR2 Configuration ------*/
/* Clear STOP[13:12] bits */
CLEAR_BIT(hirda->Instance->CR2, USART_CR2_STOP);
/*------- IRDA-associated USART registers setting : CR1 Configuration ------*/
/* Configure the USART Word Length, Parity and mode:
Set the M bits according to hirda->Init.WordLength value
Set PCE and PS bits according to hirda->Init.Parity value
Set TE and RE bits according to hirda->Init.Mode value */
MODIFY_REG(hirda->Instance->CR1,
((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | USART_CR1_RE)),
(uint32_t)hirda->Init.WordLength | hirda->Init.Parity | hirda->Init.Mode);
/*------- IRDA-associated USART registers setting : CR3 Configuration ------*/
/* Clear CTSE and RTSE bits */
CLEAR_BIT(hirda->Instance->CR3, (USART_CR3_RTSE | USART_CR3_CTSE));
/*------- IRDA-associated USART registers setting : BRR Configuration ------*/
if(hirda->Instance == USART1)
{
hirda->Instance->BRR = IRDA_BRR(HAL_RCC_GetPCLK2Freq(), hirda->Init.BaudRate);
}
else
{
hirda->Instance->BRR = IRDA_BRR(HAL_RCC_GetPCLK1Freq(), hirda->Init.BaudRate);
}
}
/**
* @brief Configure the IRDA peripheral
* @param hirda: irda handle
* @retval None
*/
static HAL_StatusTypeDef IRDA_SetConfig(IRDA_HandleTypeDef *hirda)
{
uint32_t tmpreg = 0x00000000;
IRDA_ClockSourceTypeDef clocksource = IRDA_CLOCKSOURCE_UNDEFINED;
HAL_StatusTypeDef ret = HAL_OK;
/* Check the communication parameters */
assert_param(IS_IRDA_BAUDRATE(hirda->Init.BaudRate));
assert_param(IS_IRDA_WORD_LENGTH(hirda->Init.WordLength));
assert_param(IS_IRDA_PARITY(hirda->Init.Parity));
assert_param(IS_IRDA_TX_RX_MODE(hirda->Init.Mode));
assert_param(IS_IRDA_PRESCALER(hirda->Init.Prescaler));
assert_param(IS_IRDA_POWERMODE(hirda->Init.PowerMode));
/*-------------------------- USART CR1 Configuration -----------------------*/
/* Configure the IRDA Word Length, Parity and transfer Mode:
Set the M bits according to hirda->Init.WordLength value
Set PCE and PS bits according to hirda->Init.Parity value
Set TE and RE bits according to hirda->Init.Mode value */
tmpreg = (uint32_t)hirda->Init.WordLength | hirda->Init.Parity | hirda->Init.Mode ;
MODIFY_REG(hirda->Instance->CR1, IRDA_CR1_FIELDS, tmpreg);
/*-------------------------- USART CR3 Configuration -----------------------*/
MODIFY_REG(hirda->Instance->CR3, USART_CR3_IRLP, hirda->Init.PowerMode);
/*-------------------------- USART GTPR Configuration ----------------------*/
MODIFY_REG(hirda->Instance->GTPR, USART_GTPR_PSC, hirda->Init.Prescaler);
/*-------------------------- USART BRR Configuration -----------------------*/
__HAL_IRDA_GETCLOCKSOURCE(hirda, clocksource);
switch (clocksource)
{
case IRDA_CLOCKSOURCE_PCLK1:
hirda->Instance->BRR = (uint16_t)(HAL_RCC_GetPCLK1Freq() / hirda->Init.BaudRate);
break;
case IRDA_CLOCKSOURCE_PCLK2:
hirda->Instance->BRR = (uint16_t)(HAL_RCC_GetPCLK2Freq() / hirda->Init.BaudRate);
break;
case IRDA_CLOCKSOURCE_HSI:
hirda->Instance->BRR = (uint16_t)(HSI_VALUE / hirda->Init.BaudRate);
break;
case IRDA_CLOCKSOURCE_SYSCLK:
hirda->Instance->BRR = (uint16_t)(HAL_RCC_GetSysClockFreq() / hirda->Init.BaudRate);
break;
case IRDA_CLOCKSOURCE_LSE:
hirda->Instance->BRR = (uint16_t)(LSE_VALUE / hirda->Init.BaudRate);
break;
case IRDA_CLOCKSOURCE_UNDEFINED:
default:
ret = HAL_ERROR;
break;
}
return ret;
}
/**
* @brief Configures the IRDA peripheral.
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains
* the configuration information for the specified IRDA module.
* @retval None
*/
static void IRDA_SetConfig(IRDA_HandleTypeDef *hirda)
{
uint32_t tmpreg = 0x00;
/* Check the parameters */
assert_param(IS_IRDA_INSTANCE(hirda->Instance));
assert_param(IS_IRDA_BAUDRATE(hirda->Init.BaudRate));
assert_param(IS_IRDA_WORD_LENGTH(hirda->Init.WordLength));
assert_param(IS_IRDA_PARITY(hirda->Init.Parity));
assert_param(IS_IRDA_MODE(hirda->Init.Mode));
/*-------------------------- IRDA CR2 Configuration ------------------------*/
/* Clear STOP[13:12] bits */
hirda->Instance->CR2 &= (uint32_t)~((uint32_t)USART_CR2_STOP);
/*-------------------------- USART CR1 Configuration -----------------------*/
tmpreg = hirda->Instance->CR1;
/* Clear M, PCE, PS, TE and RE bits */
tmpreg &= (uint32_t)~((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | \
USART_CR1_RE));
/* Configure the USART Word Length, Parity and mode:
Set the M bits according to hirda->Init.WordLength value
Set PCE and PS bits according to hirda->Init.Parity value
Set TE and RE bits according to hirda->Init.Mode value */
tmpreg |= (uint32_t)hirda->Init.WordLength | hirda->Init.Parity | hirda->Init.Mode;
/* Write to USART CR1 */
hirda->Instance->CR1 = (uint32_t)tmpreg;
/*-------------------------- USART CR3 Configuration -----------------------*/
/* Clear CTSE and RTSE bits */
hirda->Instance->CR3 &= (uint32_t)~((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE));
/*-------------------------- USART BRR Configuration -----------------------*/
if((hirda->Instance == USART1) || (hirda->Instance == USART6))
{
hirda->Instance->BRR = __IRDA_BRR(HAL_RCC_GetPCLK2Freq(), hirda->Init.BaudRate);
}
else
{
hirda->Instance->BRR = __IRDA_BRR(HAL_RCC_GetPCLK1Freq(), hirda->Init.BaudRate);
}
}