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[STM32][SPI]根据频率计算收发超时时间

This commit is contained in:
wdfk-prog 2024-07-02 09:28:56 +08:00
parent 1a6409c7bf
commit 11b6a59f2b
1 changed files with 10 additions and 6 deletions
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16
bsp/stm32/libraries/HAL_Drivers/drivers/drv_spi.c
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@ -195,6 +195,8 @@ static rt_err_t stm32_spi_init(struct stm32_spi *spi_drv, struct rt_spi_configur
spi_handle->Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256;
}
cfg->usage_freq = SPI_CLOCK / (rt_size_t)pow(2,(spi_handle->Init.BaudRatePrescaler >> 28) + 1);
LOG_D("sys freq: %d, pclk freq: %d, SPI limiting freq: %d, SPI usage freq: %d",
#if defined(SOC_SERIES_STM32MP1)
HAL_RCC_GetSystemCoreClockFreq(),
@ -203,7 +205,7 @@ static rt_err_t stm32_spi_init(struct stm32_spi *spi_drv, struct rt_spi_configur
#endif
SPI_CLOCK,
cfg->max_hz,
SPI_CLOCK / (rt_size_t)pow(2,(spi_handle->Init.BaudRatePrescaler >> 28) + 1));
cfg->usage_freq);
if (cfg->mode & RT_SPI_MSB)
{
@ -280,7 +282,7 @@ static rt_err_t stm32_spi_init(struct stm32_spi *spi_drv, struct rt_spi_configur
static rt_ssize_t spixfer(struct rt_spi_device *device, struct rt_spi_message *message)
{
#define DMA_TRANS_MIN_LEN 10 /* only buffer length >= DMA_TRANS_MIN_LEN will use DMA mode */
#define DMA_TRANS_MIN_LEN 10 /* only buffer length >= DMA_TRANS_MIN_LEN will use DMA mode */
HAL_StatusTypeDef state = HAL_OK;
rt_size_t message_length, already_send_length;
@ -294,6 +296,8 @@ static rt_ssize_t spixfer(struct rt_spi_device *device, struct rt_spi_message *m
struct stm32_spi *spi_drv = rt_container_of(device->bus, struct stm32_spi, spi_bus);
SPI_HandleTypeDef *spi_handle = &spi_drv->handle;
rt_uint32_t timeout = message->length / (1000 * spi_drv->cfg->usage_freq) + 5;
if (message->cs_take && !(device->config.mode & RT_SPI_NO_CS) && (device->cs_pin != PIN_NONE))
{
@ -424,7 +428,7 @@ static rt_ssize_t spixfer(struct rt_spi_device *device, struct rt_spi_message *m
}
else
{
state = HAL_SPI_TransmitReceive(spi_handle, (uint8_t *)send_buf, (uint8_t *)recv_buf, send_length, 1000);
state = HAL_SPI_TransmitReceive(spi_handle, (uint8_t *)send_buf, (uint8_t *)recv_buf, send_length, timeout);
}
}
else if (message->send_buf)
@ -435,7 +439,7 @@ static rt_ssize_t spixfer(struct rt_spi_device *device, struct rt_spi_message *m
}
else
{
state = HAL_SPI_Transmit(spi_handle, (uint8_t *)send_buf, send_length, 1000);
state = HAL_SPI_Transmit(spi_handle, (uint8_t *)send_buf, send_length, timeout);
}
if (message->cs_release && (device->config.mode & RT_SPI_3WIRE))
@ -455,7 +459,7 @@ static rt_ssize_t spixfer(struct rt_spi_device *device, struct rt_spi_message *m
{
/* clear the old error flag */
__HAL_SPI_CLEAR_OVRFLAG(spi_handle);
state = HAL_SPI_Receive(spi_handle, (uint8_t *)recv_buf, send_length, 1000);
state = HAL_SPI_Receive(spi_handle, (uint8_t *)recv_buf, send_length, timeout);
}
}
else
@ -482,7 +486,7 @@ static rt_ssize_t spixfer(struct rt_spi_device *device, struct rt_spi_message *m
if ((spi_drv->spi_dma_flag & (SPI_USING_TX_DMA_FLAG | SPI_USING_RX_DMA_FLAG)) && (send_length >= DMA_TRANS_MIN_LEN))
{
/* blocking the thread,and the other tasks can run */
if (rt_completion_wait(&spi_drv->cpt, 1000) != RT_EOK)
if (rt_completion_wait(&spi_drv->cpt, timeout) != RT_EOK)
{
state = HAL_ERROR;
LOG_E("wait for DMA interrupt overtime!");