rt_thread移植到stm32f429出现的问题

发布于 2015-11-02 15:12:45 浏览：3144 订阅该版

移植搞了好多天，终于sd卡初始化通过了，但是文件系统初始化过不去程序在```int rt_hw_sdcard_init(void)
{
    if (SD_Init() == SD_OK)
    {
        SD_Error status;
        rt_uint8_t *sector;

status = SD_GetCardInfo(&SDCardInfo);
        if (status != SD_OK)
				{
					rt_kprintf("SD_GetCardInfo if fail.
");
					goto __return;
				}
				rt_kprintf("SD_GetCardInfo ok.
");
				rt_kprintf("sdcard info:.
carcapacity = %x,cardblocksize = %lu.
",SDCardInfo.CardCapacity,SDCardInfo.CardBlockSize) ;
        
				status = SD_SelectDeselect((u32) (SDCardInfo.RCA << 16));
				
        if (status != SD_OK)
				{
					rt_kprintf("SD_SelectDeselect is  error.
");
					goto __return;// 
				}
				rt_kprintf("SD set to transfer mode.
");
        SD_EnableWideBusOperation(SDIO_BusWide_4b);
				if (status != SD_OK)
				{
					rt_kprintf("enable wide bus operation fail.
");
					goto __return;
				}
        SD_SetDeviceMode(SD_DMA_MODE);
				if (status != SD_OK)
				{
					rt_kprintf("set Device mode fail.
");
					goto __return;
				}
        /* get the first sector to read partition table */
        _**sector = (rt_uint8_t*) rt_malloc (256);**_
        if (sector == RT_NULL)
        {
            rt_kprintf("allocate partition sector buffer failed
");
            return 0;
        }
        status = SD_ReadBlock((u8*)sector,0,  512);
        if (status == SD_OK)
        {
            /* get the first partition */
            if (dfs_filesystem_get_partition(&part, sector, 0) != 0)
            {
                /* there is no partition */
                part.offset = 0;
                part.size   = 0;
							
            }
        }
        else
        {
            /* there is no partition table */
            part.offset = 0;
            part.size   = 0;
        }

/* release sector buffer */
        rt_free(sector);

/* register sdcard device */
        sdcard_device.type  = RT_Device_Class_Block;
        sdcard_device.init 	= rt_sdcard_init;
        sdcard_device.open 	= rt_sdcard_open;
        sdcard_device.close = rt_sdcard_close;
        sdcard_device.read 	= rt_sdcard_read;
        sdcard_device.write = rt_sdcard_write;
        sdcard_device.control = rt_sdcard_control;

/* no private */
        sdcard_device.user_data = &SDCardInfo;

rt_device_register(&sdcard_device, "sd0",
                           RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE | RT_DEVICE_FLAG_STANDALONE);

return 0;
    }

__return:
    rt_kprintf("sdcard init failed
");

return 0;
}```
画线的地方前面执行正常，单步调试没有发现什么异常，运行效果在附件，一起来看看
![QQ截图20151102145250.png](https://oss-club.rt-thread.org/uploads/7760_d505df248326cf845a19392b977ec5c4.png)

![QQ截图20151102151546.png](https://oss-club.rt-thread.org/uploads/7760_c2ff2a745fcb51275dc0cb9c96a2ebc2.png)

![QQ截图20151102151714.png](https://oss-club.rt-thread.org/uploads/7760_848469d1cf133c818e342b356767a12c.png)

![55559.jpg](https://oss-club.rt-thread.org/uploads/7760_5555a790b591c91099a8c81394ea97d2.jpg)

7 个回答

师院小Q 2015-11-02

这家伙很懒，什么也没写！

师院小Q 2015-11-02

这家伙很懒，什么也没写！

aozima 2015-11-02

调网络不抓包，调I2C等时序不上逻辑分析仪，就像电工不用万用表！多用整理的好的文字，比截图更省流量，还能在整理过程中思考。

师院小Q 2015-11-06

这家伙很懒，什么也没写！

```
void rt_hw_sdcard_init(void)
{
    NVIC_InitTypeDef NVIC_InitStructure;
	if (SD_Init() == SD_OK)
	{
		u16 i=0;
		SD_Error status;
		rt_uint8_t *sector;
		SD_Error errorstatus=SD_OK;
		status = SD_GetCardInfo(&SDCardInfo);
		if (status != SD_OK)
		{
			rt_kprintf("SD_GetCardInfo if fail.
");
			goto __return;
		}
		rt_kprintf("SD_GetCardInfo ok.
");
		rt_kprintf("sdcard info:.
carcapacity = %x,cardblocksize = %lu.
",SDCardInfo.CardCapacity,SDCardInfo.CardBlockSize) ;

status = SD_SelectDeselect((u32) (SDCardInfo.RCA << 16));
		
		
		if (status != SD_OK)
		{
			rt_kprintf("SD_SelectDeselect is  error.
");
			goto __return;// 
		}
		rt_kprintf("SD_SelectDeselect is  ok.
");
```

我参考了realtouch的驱动，现在读到的内存和块大小应该是正确的，但是在执行

```
 SD_Error SD_SelectDeselect(uint32_t addr)
{
	
	
	
		
		SD_Error errorstatus = SD_OK;
		SDIO_CmdInitStructure.SDIO_Argument =  addr;//
		SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SEL_DESEL_CARD;
		SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
		SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
		SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
		SDIO_SendCommand(&SDIO_CmdInitStructure);//
		errorstatus = CmdResp1Error(7);
		
		rt_kprintf("errorstatus=%d
",errorstatus);
			return(errorstatus);
			
		 
}
```

会出错