备份SD卡使用ThreadX USBX模拟盘，底层是SDIO查询，SDIO DMA和FileX API三种方式

eric2013 · 发表于 2021-10-7 10:47:21

SDIO查询方式在STM32F4上很难用，而H7上很好用。

/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file ux_device_msc.c
* @author MCD Application Team
* @brief USBX Device applicative file
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2020 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under Ultimate Liberty license
* SLA0044, the "License"; You may not use this file except in compliance with
* the License. You may obtain a copy of the License at:
* www.st.com/SLA0044
*
******************************************************************************
*/
/* USER CODE END Header */
//#include "fx_stm32_sd_driver.h"
/* Includes ------------------------------------------------------------------*/
#include "ux_device_msc.h"
//#include "fx_stm32_sd_driver.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
//#include "main.h"
#include "tx_api.h"
//#include "app_usbx_device.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE BEGIN PFP */
static int32_t check_sd_status(uint32_t instance);
/* USER CODE END PFP */
#define BSP_ERROR_NONE 0
#define BSP_ERROR_BUSY -3
#include "bsp.h"
#include "tx_api.h"
#include "fx_api.h"
#define DEFAULT_TIMEOUT (500 * TX_TIMER_TICKS_PER_SECOND)
extern TX_SEMAPHORE transfer_semaphore;
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/**
* @brief Function implementing app_usb_device_thread_media_status.
* @param arg: Not used
* @retval status
*/
UINT app_usb_device_thread_media_status(VOID *storage, ULONG lun, ULONG media_id, ULONG *media_status)
{
/* The ATA drive never fails. This is just for app_usb_device only !!!! */
return (UX_SUCCESS);
}
/**
* @brief Function implementing app_usb_device_thread_media_read.
* @param storage : Not used
* @param lun: Logical unit number
* @param lba: Logical block address
* @param number_blocks: Blocks number
* @param data_pointer: Data
* @param media_status: Not used
* @retval Status (0 : OK / -1 : Error)
*/
UINT app_usb_device_thread_media_read(VOID *storage, ULONG lun,
UCHAR *data_pointer,
ULONG number_blocks,
ULONG lba, ULONG *media_status)
{
#if 0
UINT status = 0U;
BSP_SD_ReadBlocks((uint32_t *) data_pointer, lba, number_blocks, 500);
//while(BSP_SD_GetCardState() != SD_TRANSFER_OK);
status = check_sd_status(0);
return (status);
#else
UINT status;
if(check_sd_status(0) != BSP_ERROR_NONE)
{
}
status = BSP_SD_ReadBlocks_DMA((uint32_t*)data_pointer, lba, number_blocks);
if (status == BSP_ERROR_NONE)
{
if(tx_semaphore_get(&transfer_semaphore, DEFAULT_TIMEOUT) == TX_SUCCESS)
{
status = FX_SUCCESS;
}
else
{
status = FX_BUFFER_ERROR;
}
}
return status;
#endif
}
/**
* @brief Function implementing app_usb_device_thread_media_write.
* @param storage : Not used
* @param lun: Logical unit number
* @param lba: Logical block address
* @param number_blocks: Blocks number
* @param data_pointer: Data
* @param media_status: Not used
* @retval Status (0 : OK / -1 : Error)
*/
UINT app_usb_device_thread_media_write(VOID *storage, ULONG lun,
UCHAR *data_pointer,
ULONG number_blocks,
ULONG lba, ULONG *media_status)
{
#if 0
UINT status = 0U;
BSP_SD_WriteBlocks((uint32_t *) data_pointer, lba, number_blocks, 500);
//while(BSP_SD_GetCardState() != SD_TRANSFER_OK);
status = check_sd_status(0);
return (status);
#else
UINT status;
if(check_sd_status(0) != BSP_ERROR_NONE)
{
}
status = BSP_SD_ReadBlocks_DMA((uint32_t*)data_pointer, lba, number_blocks);
if (status == BSP_ERROR_NONE)
{
if(tx_semaphore_get(&transfer_semaphore, DEFAULT_TIMEOUT) == TX_SUCCESS)
{
status = FX_SUCCESS;
}
else
{
status = FX_BUFFER_ERROR;
}
}
#endif
return status;
}
/**
* @brief check SD card Transfer Status
* @param Instance
* @retval BSP_ERROR_NONE, BSP_ERROR_BUSY
*/
static int32_t check_sd_status(uint32_t Instance)
{
uint32_t start = tx_time_get();
while (tx_time_get() - start < 500)
{
if (BSP_SD_GetCardState() == SD_TRANSFER_OK)
{
return BSP_ERROR_NONE;
}
}
return BSP_ERROR_BUSY;
}
#if 0
extern FX_MEDIA sdio_disk;
UINT app_usb_device_thread_media_status(VOID *storage, ULONG lun, ULONG media_id, ULONG *media_status)
{
/* The ATA drive never fails. This is just for demo only !!!! */
return(UX_SUCCESS);
}
UINT app_usb_device_thread_media_read(VOID *storage, ULONG lun, UCHAR * data_pointer, ULONG number_blocks, ULONG lba, ULONG *media_status)
{
UINT status = 0;
while(number_blocks--)
{
status = fx_media_read(&sdio_disk,lba,data_pointer);
data_pointer+=512;
lba++;
}
return(status);
}
UINT app_usb_device_thread_media_write(VOID *storage, ULONG lun, UCHAR * data_pointer, ULONG number_blocks, ULONG lba, ULONG *media_status)
{
UINT status = 0;
while(number_blocks--)
{
status = fx_media_write(&sdio_disk,lba,data_pointer);
data_pointer+=512;
lba++;
}
return(status);
}
#endif
/***************************** 安富莱电子 www.armfly.com (END OF FILE) *********************************/

复制代码

ccschen · 发表于 2022-4-15 00:23:38

AZURE RTOS和CUBEMX生成的FREERTOS一样，有通病，读写时候出错，因为开了DMA，所以这个地方老规矩

/**
  * @brief This function handles DMA2 channel4 global interrupt.
  */
void DMA2_Channel4_IRQHandler(void)
{
  /* USER CODE BEGIN DMA2_Channel4_IRQn 0 */
if((hsd1.Context == (SD_CONTEXT_DMA | SD_CONTEXT_READ_SINGLE_BLOCK)) ||
   (hsd1.Context == (SD_CONTEXT_DMA | SD_CONTEXT_READ_MULTIPLE_BLOCK)))
{
BSP_SD_DMA_Rx_IRQHandler();
}
else if((hsd1.Context == (SD_CONTEXT_DMA | SD_CONTEXT_WRITE_SINGLE_BLOCK)) ||
   (hsd1.Context == (SD_CONTEXT_DMA | SD_CONTEXT_WRITE_MULTIPLE_BLOCK)))
   {
   BSP_SD_DMA_Tx_IRQHandler();
   }
  /* USER CODE END DMA2_Channel4_IRQn 0 */
  HAL_DMA_IRQHandler(&hdma_sdmmc1);
  /* USER CODE BEGIN DMA2_Channel4_IRQn 1 */

  /* USER CODE END DMA2_Channel4_IRQn 1 */
}

ccschen · 发表于 2022-4-15 00:25:32

AZURE RTOS也用CUBEMX生成的，也用了DMA，也用了回调，结果一样的要在中断这里加内容。。。

/**
  * @brief This function handles DMA2 channel4 global interrupt.
  */
void DMA2_Channel4_IRQHandler(void)
{
  /* USER CODE BEGIN DMA2_Channel4_IRQn 0 */
if((hsd1.Context == (SD_CONTEXT_DMA | SD_CONTEXT_READ_SINGLE_BLOCK)) ||
   (hsd1.Context == (SD_CONTEXT_DMA | SD_CONTEXT_READ_MULTIPLE_BLOCK)))
{
BSP_SD_DMA_Rx_IRQHandler();
}
else if((hsd1.Context == (SD_CONTEXT_DMA | SD_CONTEXT_WRITE_SINGLE_BLOCK)) ||
   (hsd1.Context == (SD_CONTEXT_DMA | SD_CONTEXT_WRITE_MULTIPLE_BLOCK)))
   {
   BSP_SD_DMA_Tx_IRQHandler();
   }
  /* USER CODE END DMA2_Channel4_IRQn 0 */
  HAL_DMA_IRQHandler(&hdma_sdmmc1);
  /* USER CODE BEGIN DMA2_Channel4_IRQn 1 */

  /* USER CODE END DMA2_Channel4_IRQn 1 */
}

shnd · 发表于 2022-10-18 10:43:07

请问大侠，我现在用的是SD DMA方式读写文件裸机正常，改为使用UCOSIII之后，经常运行时间不固定，多则十几个小时，少则十几分钟，读写错误。请问SD DMA这个函数这里怎么修改呢？程序运行时，只有一个任务读写SD卡。按道理跟裸机一样就可以啊。没有其他任务读写SD卡了。使用GD25Q128作为内部DISK也是一样，裸机正常，用了UCSOIII就不正常了。程序执行时也是只有一个任务同一时刻读写SD卡或者SPI_FLASH。

eric2013 · 发表于 2022-10-18 13:09:40

shnd 发表于 2022-10-18 10:43
请问大侠，我现在用的是SD DMA方式读写文件裸机正常，改为使用UCOSIII之后，经常运行时间不固定，多则十几 ...

你的主控芯片是那个，这个我们uCOS-III相关的SD卡Demo有好几个，应该可以参考下。

shnd · 发表于 2022-10-19 10:14:33

eric2013 发表于 2022-10-18 13:09
你的主控芯片是那个，这个我们uCOS-III相关的SD卡Demo有好几个，应该可以参考下。

我的主控芯片是GD32F470ZGT6，目前SD卡我改的差不多了。应该可以了。但是GD25Q128还是不行。

eric2013 · 发表于 2022-10-20 11:00:39

shnd 发表于 2022-10-19 10:14
我的主控芯片是GD32F470ZGT6，目前SD卡我改的差不多了。应该可以了。但是GD25Q128还是不行。

GD25Q128的裸机方式正常吗

shnd · 发表于 2022-10-25 16:43:46

现在是GD25Q128确定没问题了。SD卡我们使用了DMA方式，参考了你们的例程，裸机运行很正常，现在使用UCOSIII了，就是偶发报错，有时候几分钟，有时候十几个小时，经监控发现HAL_SD_ReadBlocks_DMA函数里面，报错行errorstate = SDMMC_CmdReadMultiBlock(hsd->Instance, add);这一行，监测hsd->ErrorCode = SDMMC_ERROR_TIMEOUT，超时错误。然后继续监控SDMMC_CmdReadMultiBlock()函数里面SDMMC_GetCmdResp1()这个函数超时了。
do
  {
if (count-- == 0U)
{
return SDMMC_ERROR_TIMEOUT;
}
sta_reg = SDIOx->STA;
  }while(((sta_reg & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)) == 0U) ||
      ((sta_reg & SDIO_FLAG_CMDACT) != 0U ));这是具体代码。
我把超时监测关掉，让程序一直等待状态寄存器，但是就陷入死循环了。
已经把所有的针对SD卡寄存器操作的函数，全部加了临界区锁定。还是偶尔会报错这个代码。

shnd · 发表于 2022-10-25 16:48:27

另外，使用的是4字节对齐读写缓冲区，和SD的DMA模式都设置了好几轮都不行，应该不是这里得问题，还有关于f_read()和f_lseek()函数都应该没有问题，因为针对U盘和25Q128的读写都没有问题。更换过几张SD卡，有的卡就好一点，运行十几个小时偶发报错，有的卡就不行，十几分钟甚至几分钟就报错，SD卡的SCK速度也改过，DIV降到5以下，卡都基本上不能识别了。所有应该也不是SD的时钟速度问题。

shnd · 发表于 2022-10-25 17:07:57

【新提醒】STM32CbueMX+FatFS+SD+FreeRTOS DMA 超时bug - 文件系统 - 硬汉嵌入式论坛 - Powered by Discuz!
https://www.armbbs.cn/forum.php? ... ;highlight=SD%2BDMA，搜索论坛发现了这个帖子。好像跟我这个问题有些类似，但是好像又不一样，老大能帮我看看吗？

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