1、问题描述 使用FAT32 f_write 多次执行写操作时,会报FR_DISK_ERR错误,而且是刚开始写不报错,写几次后会一直报错。 设断点跟踪到HAL_SD_WriteBlocks中,在调用SDMMC_CmdWriteMultiBlock时,会报SDMMC_ERROR_TX_UNDERRUN,意思 是Transmit FIFO underrun 2、原因分析 如下图所示,SDMMC开始写操作时,首先要将数据写...
【Fatfs】f_close返回FR_DISK_ERR 问题: (1)第一次f_open之后,f_close返回FR_DISK_ERR; (2)第二次f_open直接返回FR_LOCKED。 从上述两个问题分析:FR_DISK_ERR已经告知了我们底层I/O有问题。FR_LOCKED告知了我们文件被锁住了,也就是说重复打开同一个文件。I/O控制的实现,主要通过disk_ioctl接口,改接口...
最后关闭文件的时候报错为“FR_DISK_ERR ”。但在读SD卡文档的时候都是正确的，请高人指点这是怎么...
但是，在单独调用disk_read函数时，并没有出现数据错误的问题，并且和win_hex中查看的数据相同；很不...
Please suggest a way how to handle these SD card errors, specially FR_DISK_ERR, so these errors should not come again and again so frequently. It has become a major block for my application.Regards,Arvind Labels: LPC17xx 0 Kudos Reply ...
把磁盘格式化成512字节
JBond.1 Senior 2021-10-09 07:19 AM It seems that first I am getting FR_DISK_ERR // (1) A hard error occurred in the low level disk I/O layer from f_lseek. And after that it becomes FR_LOCKED // (16) The operation is rejected according to the file shari...
if (fmt == 3) return FR_DISK_ERR;if (fmt) return FR_NO_FILESYSTEM; // No FAT volume is...
It is writing to sdcard also but sometime f_write is failing with FR_DISK_ERR putting me vulnerable to miss data. Please suggest why this FR_DISK_ERR is happening and how can i avoid it to get proper writing on sdcard without missing data. ...
Part Number:MSP430F5659 Good morning everybody! Today I'm here because I was trying to deal with an issue related to FAT32 system module interfaced with micro SDHC Card 8GB. I stored a .txt file in SD Card fr...