diff options
Diffstat (limited to 'bsps/arm/stm32h7/hal/stm32h7xx_hal_usart_ex.c')
| -rw-r--r-- | bsps/arm/stm32h7/hal/stm32h7xx_hal_usart_ex.c | 43 |
1 files changed, 23 insertions, 20 deletions
diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_hal_usart_ex.c b/bsps/arm/stm32h7/hal/stm32h7xx_hal_usart_ex.c index 5693716ea5..fbefb39ed7 100644 --- a/bsps/arm/stm32h7/hal/stm32h7xx_hal_usart_ex.c +++ b/bsps/arm/stm32h7/hal/stm32h7xx_hal_usart_ex.c @@ -8,6 +8,17 @@ * + Peripheral Control functions * * + ****************************************************************************** + * @attention + * + * Copyright (c) 2017 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** @verbatim ============================================================================== ##### USART peripheral extended features ##### @@ -26,17 +37,6 @@ @endverbatim ****************************************************************************** - * @attention - * - * <h2><center>© Copyright (c) 2017 STMicroelectronics. - * All rights reserved.</center></h2> - * - * This software component is licensed by ST under BSD 3-Clause license, - * the "License"; You may not use this file except in compliance with the - * License. You may obtain a copy of the License at: - * opensource.org/licenses/BSD-3-Clause - * - ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ @@ -60,10 +60,10 @@ * @{ */ /* USART RX FIFO depth */ -#define RX_FIFO_DEPTH 8U +#define RX_FIFO_DEPTH 16U /* USART TX FIFO depth */ -#define TX_FIFO_DEPTH 8U +#define TX_FIFO_DEPTH 16U /** * @} */ @@ -509,8 +509,8 @@ static void USARTEx_SetNbDataToProcess(USART_HandleTypeDef *husart) uint8_t rx_fifo_threshold; uint8_t tx_fifo_threshold; /* 2 0U/1U added for MISRAC2012-Rule-18.1_b and MISRAC2012-Rule-18.1_d */ - uint8_t numerator[] = {1U, 1U, 1U, 3U, 7U, 1U, 0U, 0U}; - uint8_t denominator[] = {8U, 4U, 2U, 4U, 8U, 1U, 1U, 1U}; + static const uint8_t numerator[] = {1U, 1U, 1U, 3U, 7U, 1U, 0U, 0U}; + static const uint8_t denominator[] = {8U, 4U, 2U, 4U, 8U, 1U, 1U, 1U}; if (husart->FifoMode == USART_FIFOMODE_DISABLE) { @@ -521,10 +521,14 @@ static void USARTEx_SetNbDataToProcess(USART_HandleTypeDef *husart) { rx_fifo_depth = RX_FIFO_DEPTH; tx_fifo_depth = TX_FIFO_DEPTH; - rx_fifo_threshold = (uint8_t)((READ_BIT(husart->Instance->CR3, USART_CR3_RXFTCFG) >> USART_CR3_RXFTCFG_Pos) & 0xFFU); - tx_fifo_threshold = (uint8_t)((READ_BIT(husart->Instance->CR3, USART_CR3_TXFTCFG) >> USART_CR3_TXFTCFG_Pos) & 0xFFU); - husart->NbTxDataToProcess = ((uint16_t)tx_fifo_depth * numerator[tx_fifo_threshold]) / (uint16_t)denominator[tx_fifo_threshold]; - husart->NbRxDataToProcess = ((uint16_t)rx_fifo_depth * numerator[rx_fifo_threshold]) / (uint16_t)denominator[rx_fifo_threshold]; + rx_fifo_threshold = (uint8_t)((READ_BIT(husart->Instance->CR3, + USART_CR3_RXFTCFG) >> USART_CR3_RXFTCFG_Pos) & 0xFFU); + tx_fifo_threshold = (uint8_t)((READ_BIT(husart->Instance->CR3, + USART_CR3_TXFTCFG) >> USART_CR3_TXFTCFG_Pos) & 0xFFU); + husart->NbTxDataToProcess = ((uint16_t)tx_fifo_depth * numerator[tx_fifo_threshold]) / + (uint16_t)denominator[tx_fifo_threshold]; + husart->NbRxDataToProcess = ((uint16_t)rx_fifo_depth * numerator[rx_fifo_threshold]) / + (uint16_t)denominator[rx_fifo_threshold]; } } /** @@ -541,4 +545,3 @@ static void USARTEx_SetNbDataToProcess(USART_HandleTypeDef *husart) * @} */ -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |