前言
- 记录一下5.0版本时使用官方推荐的函数与底层驱动存在的不兼容问题
相关宏定义
c
// -----------------------------SPI 组件
#define RT_USING_SPI
#define RT_USING_SFUD
#define RT_SFUD_USING_SFDP
#define RT_SFUD_USING_FLASH_INFO_TABLE
#define RT_SFUD_SPI_MAX_HZ 50000000
#define RT_DEBUG_SFUD使用旧的api函数
硬件驱动(使用的SPI1)
c
//
// Created by shchl on 2024/3/20.
//
#include "board.h"
#ifdef RT_USING_SPI
/**
* @brief SPI MSP Initialization
* This function configures the hardware resources used in this example
* @param hspi: SPI handle pointer
* @retval None
*/
void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if(hspi->Instance==SPI1)
{
#ifdef BSP_USING_SPI1
/* USER CODE BEGIN SPI1_MspInit 0 */
/* USER CODE END SPI1_MspInit 0 */
/* Peripheral clock enable */
__HAL_RCC_SPI1_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/**SPI1 GPIO Configuration
PB3 ------> SPI1_SCK
PB4 ------> SPI1_MISO
PB5 ------> SPI1_MOSI
*/
GPIO_InitStruct.Pin = GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* USER CODE BEGIN SPI1_MspInit 1 */
/* USER CODE END SPI1_MspInit 1 */
#endif
}
}
#endifw25q128驱动组件
c
//
// Created by shchl on 2024/3/20.
//
#include "board_w25q128.h"
#include "board.h"
#include "drv_spi.h"
#include "spi_flash_sfud.h"
static int rt_hw_spi_flash_init(void) {
if (RT_EOK != rt_hw_spi_device_attach("spi1", "spi10", GPIOB, GPIO_PIN_14)) {
LOG_E("Failed to attach the spi device.");
return -RT_ERROR;
}
if (RT_NULL == rt_sfud_flash_probe("W25Q128BV", "spi10")) {
LOG_E("Failed to probe the W25Q128.");
return -RT_ERROR;
};
return RT_EOK;
}
/* 导出到自动初始化 */
INIT_COMPONENT_EXPORT(rt_hw_spi_flash_init);测试结果(ok)
使用5.0版本之后(官方推荐函数)
硬件驱动(同上)
w25q128驱动组件
c
//
// Created by shchl on 2024/3/20.
//
#include "board_w25q128.h"
#include "board.h"
#include "drv_spi.h"
#include "spi_flash_sfud.h"
static int rt_hw_spi_flash_init(void)
{
struct rt_spi_device *spi_device = RT_NULL;
spi_device = (struct rt_spi_device *)rt_malloc(sizeof(struct rt_spi_device));
if(RT_NULL == spi_device)
{
LOG_E("Failed to malloc the spi device.");
return -RT_ENOMEM;
}
if (RT_EOK != rt_spi_bus_attach_device_cspin(spi_device, "spi10", "spi1",GET_PIN(B, 14), RT_NULL))
{
LOG_E("Failed to attach the spi device.");
return -RT_ERROR;
}
if (RT_NULL == rt_sfud_flash_probe("W25Q128BV", "spi10"))
{
LOG_E("Failed to probe the W25Q128BV.");
return -RT_ERROR;
};
return RT_EOK;
}
/* 导出到自动初始化 */
INIT_COMPONENT_EXPORT(rt_hw_spi_flash_init);运行结果(出现错误)
原因分析
驱动调整(针对5.0版本,总共修改2处)
修改后的函数
c
static rt_uint32_t spixfer(struct rt_spi_device *device, struct rt_spi_message *message)
{
HAL_StatusTypeDef state;
rt_size_t message_length, already_send_length;
rt_uint16_t send_length;
rt_uint8_t *recv_buf;
const rt_uint8_t *send_buf;
RT_ASSERT(device != RT_NULL);
RT_ASSERT(device->bus != RT_NULL);
RT_ASSERT(device->bus->parent.user_data != RT_NULL);
RT_ASSERT(message != RT_NULL);
struct stm32_spi *spi_drv = rt_container_of(device->bus, struct stm32_spi, spi_bus);
SPI_HandleTypeDef *spi_handle = &spi_drv->handle;
struct stm32_hw_spi_cs *cs = device->parent.user_data;
if (message->cs_take && !(device->config.mode & RT_SPI_NO_CS))
{
if (cs) {
if (device->config.mode & RT_SPI_CS_HIGH)
HAL_GPIO_WritePin(cs->GPIOx, cs->GPIO_Pin, GPIO_PIN_SET);
else
HAL_GPIO_WritePin(cs->GPIOx, cs->GPIO_Pin, GPIO_PIN_RESET);
} else {
if (device->config.mode & RT_SPI_CS_HIGH)
rt_pin_write(device->cs_pin, PIN_HIGH);
else
rt_pin_write(device->cs_pin, PIN_LOW);
}
}
LOG_D("%s transfer prepare and start", spi_drv->config->bus_name);
LOG_D("%s sendbuf: %X, recvbuf: %X, length: %d",
spi_drv->config->bus_name,
(uint32_t)message->send_buf,
(uint32_t)message->recv_buf, message->length);
message_length = message->length;
recv_buf = message->recv_buf;
send_buf = message->send_buf;
while (message_length)
{
/* the HAL library use uint16 to save the data length */
if (message_length > 65535)
{
send_length = 65535;
message_length = message_length - 65535;
}
else
{
send_length = message_length;
message_length = 0;
}
/* calculate the start address */
already_send_length = message->length - send_length - message_length;
send_buf = (rt_uint8_t *)message->send_buf + already_send_length;
recv_buf = (rt_uint8_t *)message->recv_buf + already_send_length;
/* start once data exchange in DMA mode */
if (message->send_buf && message->recv_buf)
{
if ((spi_drv->spi_dma_flag & SPI_USING_TX_DMA_FLAG) && (spi_drv->spi_dma_flag & SPI_USING_RX_DMA_FLAG))
{
state = HAL_SPI_TransmitReceive_DMA(spi_handle, (uint8_t *)send_buf, (uint8_t *)recv_buf, send_length);
}
else
{
state = HAL_SPI_TransmitReceive(spi_handle, (uint8_t *)send_buf, (uint8_t *)recv_buf, send_length, 1000);
}
}
else if (message->send_buf)
{
if (spi_drv->spi_dma_flag & SPI_USING_TX_DMA_FLAG)
{
state = HAL_SPI_Transmit_DMA(spi_handle, (uint8_t *)send_buf, send_length);
}
else
{
state = HAL_SPI_Transmit(spi_handle, (uint8_t *)send_buf, send_length, 1000);
}
if (message->cs_release && (device->config.mode & RT_SPI_3WIRE))
{
/* release the CS by disable SPI when using 3 wires SPI */
__HAL_SPI_DISABLE(spi_handle);
}
}
else
{
memset((uint8_t *)recv_buf, 0xff, send_length);
if (spi_drv->spi_dma_flag & SPI_USING_RX_DMA_FLAG)
{
state = HAL_SPI_Receive_DMA(spi_handle, (uint8_t *)recv_buf, send_length);
}
else
{
/* clear the old error flag */
__HAL_SPI_CLEAR_OVRFLAG(spi_handle);
state = HAL_SPI_Receive(spi_handle, (uint8_t *)recv_buf, send_length, 1000);
}
}
if (state != HAL_OK)
{
LOG_I("spi transfer error : %d", state);
message->length = 0;
spi_handle->State = HAL_SPI_STATE_READY;
}
else
{
LOG_D("%s transfer done", spi_drv->config->bus_name);
}
/* For simplicity reasons, this example is just waiting till the end of the
transfer, but application may perform other tasks while transfer operation
is ongoing. */
while (HAL_SPI_GetState(spi_handle) != HAL_SPI_STATE_READY);
}
if (message->cs_release && !(device->config.mode & RT_SPI_NO_CS))
{
if (cs) {
if (device->config.mode & RT_SPI_CS_HIGH)
HAL_GPIO_WritePin(cs->GPIOx, cs->GPIO_Pin, GPIO_PIN_RESET);
else
HAL_GPIO_WritePin(cs->GPIOx, cs->GPIO_Pin, GPIO_PIN_SET);
} else {
if (device->config.mode & RT_SPI_CS_HIGH)
rt_pin_write(device->cs_pin, PIN_LOW);
else
rt_pin_write(device->cs_pin, PIN_HIGH);
}
}
return message->length;
}测试结果
