mirror of https://github.com/ARMmbed/mbed-os.git
Merge pull request #6012 from jeromecoutant/PR_SPI_FLUSH
STM32 SPI ASYNC - Add FIFO flush before transferpull/6018/head
Cruz Monrreal
GitHub
commit
6a8a818ebf
|
|
@ -0,0 +1,131 @@
|
||||||
|
/**
|
||||||
|
******************************************************************************
|
||||||
|
* @file stm32f7xx_hal_spi_ex.c
|
||||||
|
* @author MCD Application Team
|
||||||
|
* @brief Extended SPI HAL module driver.
|
||||||
|
* This file provides firmware functions to manage the following
|
||||||
|
* SPI peripheral extended functionalities :
|
||||||
|
* + IO operation functions
|
||||||
|
*
|
||||||
|
******************************************************************************
|
||||||
|
* @attention
|
||||||
|
*
|
||||||
|
* <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
* are permitted provided that the following conditions are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright notice,
|
||||||
|
* this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||||
|
* this list of conditions and the following disclaimer in the documentation
|
||||||
|
* and/or other materials provided with the distribution.
|
||||||
|
* 3. Neither the name of STMicroelectronics nor the names of its contributors
|
||||||
|
* may be used to endorse or promote products derived from this software
|
||||||
|
* without specific prior written permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||||
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||||
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||||
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||||
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||||
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||||
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||||
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||||
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*
|
||||||
|
******************************************************************************
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Includes ------------------------------------------------------------------*/
|
||||||
|
#include "stm32f7xx_hal.h"
|
||||||
|
|
||||||
|
/** @addtogroup STM32F7xx_HAL_Driver
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
/** @defgroup SPIEx SPIEx
|
||||||
|
* @brief SPI Extended HAL module driver
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
#ifdef HAL_SPI_MODULE_ENABLED
|
||||||
|
|
||||||
|
/* Private typedef -----------------------------------------------------------*/
|
||||||
|
/* Private defines -----------------------------------------------------------*/
|
||||||
|
/** @defgroup SPIEx_Private_Constants SPIEx Private Constants
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
#define SPI_FIFO_SIZE 4
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Private macros ------------------------------------------------------------*/
|
||||||
|
/* Private variables ---------------------------------------------------------*/
|
||||||
|
/* Private function prototypes -----------------------------------------------*/
|
||||||
|
/* Exported functions --------------------------------------------------------*/
|
||||||
|
|
||||||
|
/** @defgroup SPIEx_Exported_Functions SPIEx Exported Functions
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
/** @defgroup SPIEx_Exported_Functions_Group1 IO operation functions
|
||||||
|
* @brief Data transfers functions
|
||||||
|
*
|
||||||
|
@verbatim
|
||||||
|
==============================================================================
|
||||||
|
##### IO operation functions #####
|
||||||
|
===============================================================================
|
||||||
|
[..]
|
||||||
|
This subsection provides a set of extended functions to manage the SPI
|
||||||
|
data transfers.
|
||||||
|
|
||||||
|
(#) Rx data flush function:
|
||||||
|
(++) HAL_SPIEx_FlushRxFifo()
|
||||||
|
|
||||||
|
@endverbatim
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Flush the RX fifo.
|
||||||
|
* @param hspi pointer to a SPI_HandleTypeDef structure that contains
|
||||||
|
* the configuration information for the specified SPI module.
|
||||||
|
* @retval HAL status
|
||||||
|
*/
|
||||||
|
HAL_StatusTypeDef HAL_SPIEx_FlushRxFifo(SPI_HandleTypeDef *hspi)
|
||||||
|
{
|
||||||
|
__IO uint32_t tmpreg;
|
||||||
|
uint8_t count = 0U;
|
||||||
|
while ((hspi->Instance->SR & SPI_FLAG_FRLVL) != SPI_FRLVL_EMPTY)
|
||||||
|
{
|
||||||
|
count++;
|
||||||
|
tmpreg = hspi->Instance->DR;
|
||||||
|
UNUSED(tmpreg); /* To avoid GCC warning */
|
||||||
|
if (count == SPI_FIFO_SIZE)
|
||||||
|
{
|
||||||
|
return HAL_TIMEOUT;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return HAL_OK;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
#endif /* HAL_SPI_MODULE_ENABLED */
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||||
|
|
@ -0,0 +1,91 @@
|
||||||
|
/**
|
||||||
|
******************************************************************************
|
||||||
|
* @file stm32f7xx_hal_spi_ex.h
|
||||||
|
* @author MCD Application Team
|
||||||
|
* @brief Header file of SPI HAL Extended module.
|
||||||
|
******************************************************************************
|
||||||
|
* @attention
|
||||||
|
*
|
||||||
|
* <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
* are permitted provided that the following conditions are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright notice,
|
||||||
|
* this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||||
|
* this list of conditions and the following disclaimer in the documentation
|
||||||
|
* and/or other materials provided with the distribution.
|
||||||
|
* 3. Neither the name of STMicroelectronics nor the names of its contributors
|
||||||
|
* may be used to endorse or promote products derived from this software
|
||||||
|
* without specific prior written permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||||
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||||
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||||
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||||
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||||
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||||
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||||
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||||
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*
|
||||||
|
******************************************************************************
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Define to prevent recursive inclusion -------------------------------------*/
|
||||||
|
#ifndef __STM32F7xx_HAL_SPI_EX_H
|
||||||
|
#define __STM32F7xx_HAL_SPI_EX_H
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* Includes ------------------------------------------------------------------*/
|
||||||
|
#include "stm32f7xx_hal_def.h"
|
||||||
|
|
||||||
|
/** @addtogroup STM32F7xx_HAL_Driver
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
/** @addtogroup SPIEx
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Exported types ------------------------------------------------------------*/
|
||||||
|
/* Exported constants --------------------------------------------------------*/
|
||||||
|
/* Exported macros -----------------------------------------------------------*/
|
||||||
|
/* Exported functions --------------------------------------------------------*/
|
||||||
|
/** @addtogroup SPIEx_Exported_Functions
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Initialization and de-initialization functions ****************************/
|
||||||
|
/* IO operation functions *****************************************************/
|
||||||
|
/** @addtogroup SPIEx_Exported_Functions_Group1
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
HAL_StatusTypeDef HAL_SPIEx_FlushRxFifo(SPI_HandleTypeDef *hspi);
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif /* __STM32F7xx_HAL_SPI_EX_H */
|
||||||
|
|
||||||
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||||
|
|
@ -526,6 +526,11 @@ static int spi_master_start_asynch_transfer(spi_t *obj, transfer_type_t transfer
|
||||||
NVIC_SetPriority(irq_n, 1);
|
NVIC_SetPriority(irq_n, 1);
|
||||||
NVIC_EnableIRQ(irq_n);
|
NVIC_EnableIRQ(irq_n);
|
||||||
|
|
||||||
|
// flush FIFO
|
||||||
|
#if defined(SPI_FLAG_FRLVL) // STM32F0 STM32F3 STM32F7 STM32L4
|
||||||
|
HAL_SPIEx_FlushRxFifo(handle);
|
||||||
|
#endif
|
||||||
|
|
||||||
// enable the right hal transfer
|
// enable the right hal transfer
|
||||||
int rc = 0;
|
int rc = 0;
|
||||||
switch(transfer_type) {
|
switch(transfer_type) {
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue