回复【2楼】正点原子: --------------------------------- 是在死在这个函数 ：DRESULT disk_write ( BYTE drv, /* hysical drive nmuber (0..) */ const BYTE *buff, /* Data to be written */ DWORD sector, /* Sector address (LBA) */ BYTE count /* Number of sectors to write (1..255) */ )
/* Write block of 512 bytes on address 0*/ Status = SD_WriteBlock((uint8_t *)buff, sector << 9, _MAX_SS); /* Check if the Transfer is finished */ //Status = SD_WaitWriteOperation(); while(SD_GetStatus() != SD_TRANSFER_OK); 此处写完数据到TF卡后，检查是否完成，返回的是SD_TRANSFER_BUSY，并且不是系统一上电就卡死的，而是运行一段时间出现的现象不好查找问题出在哪里
{var%20f='http://v.t.sina.com.cn/share/share.php?appkey=1515056452',u=z||d.location,p=['&url=',e(u),'&title=',e(t||d.title),'&source=',e(r),'&sourceUrl=',e(l),'&content=',c||'gb2312','&pic=',e(p||'')].join('');function%20a(){if(!window.open([f,p].join(''),'mb',['toolbar=0,status=0,resizable=1,width=440,height=430,left=',(s.width-440)/2,',top=',(s.height-430)/2].join('')))u.href=[f,p].join('');};if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else%20a();})(screen,document,encodeURIComponent,'','','https://www.xiaopingtou.cn/data/attach/logo/logo.png', '推荐 Beans 的问题《stm32中sd卡的问题》','https://www.xiaopingtou.net/q-129496.html','页面编码gb2312|utf-8默认gb2312'));){kind=link}
---------------------------------
是在死在这个函数
：DRESULT disk_write (
BYTE drv, /*
const BYTE *buff, /* Data to be written */
DWORD sector, /* Sector address (LBA) */
BYTE count /* Number of sectors to write (1..255) */
)
/* Write block of 512 bytes on address 0*/
Status = SD_WriteBlock((uint8_t *)buff, sector << 9, _MAX_SS);
/* Check if the Transfer is finished */
//Status = SD_WaitWriteOperation();
while(SD_GetStatus() != SD_TRANSFER_OK);
此处写完数据到TF卡后，检查是否完成，返回的是SD_TRANSFER_BUSY，并且不是系统一上电就卡死的，而是运行一段时间出现的现象不好查找问题出在哪里
---------------------------------
不用DMA试试
一周热门 更多>