FatFs question

[Woody Hung]

I used nRF5_SDK_14.1.0_1dda907.

I used fatfs example.

Wirted data in the same file to sd card.

I discoverd that Max size of the file is 16KB.

Over the max size of file, when i write data to sd card, will be failure.

Can i change the max size to one file, or no limit size ?

[Woody Hung]

The line is 3423.

if (disk_read(fs->drv, fp->buf, fp->sect, 1) != RES_OK) res = FR_DISK_ERR;

I discovered that :

In the disk_read(BYTE drv, BYTE *buff, DWORD sector, UINT count) function.

err_code = nrf_blk_dev_read_req(m_drives[drv].config.p_block_device, &req); 

The err_code is 0x11.

How to debug?

[haakonsh]

Hey woody Sorry for the long wait.

An error code of 0x11 is NRF_ERROR_BUSY. It can be returned from line 250, 256, and 283 in nrf_block_dev_sdc.c. 

250: (m_active_sdc_dev != p_sdc_dev) is true. /* SDC instance is busy. */

256: app_sdc_busy_check() returns true.  /* Previous asynchronous operation in progress. */

283: app_sdc_block_read() returns NRF_ERROR_BUSY, possible reasons are on line 1000 (m_cb.state.op != SDC_OP_IDLE), or line 1025(sdc_cmd()) of app_sdcard.c. 

 

 

Cheers,

Håkon.

[Woody Hung]

Excuse me,
Previous error is not occurrence.

But i discovery another error.

Q1: New error is :
line : 221 in diskio_blkdev.c.

m_drives[drv].last_result is NRF_BLOCK_DEV_RESULT_IO_ERROR.

I know that error occurr line : 106 in nrf_block_dev_sdc.c.

How to debug it?

And,

If an error code of 0x1 is returned from line 256 in nrf_block_dev_sdc.c. 

Q2 : What is mean that  previous asynchronous operation in progress?

Thx.