FatFs question

RE: FatFs question

Woody Hung — Wed, 16 May 2018 01:52:59 GMT

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.

RE: FatFs question

haakonsh — Tue, 15 May 2018 15:29:10 GMT

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.

RE: FatFs question

Woody Hung — Mon, 14 May 2018 06:08:52 GMT

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?

RE: FatFs question

Woody Hung — Wed, 09 May 2018 01:12:18 GMT

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?

RE: FatFs question

haakonsh — Mon, 07 May 2018 14:43:45 GMT

Please forget the block count, it should be given by the SDCard library.

If f_open returns 0x01 this means: FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */

There's only two ways f_open can return FR_DISK_ERR and they are present in the lines 3407 to 3423 of ff.c in SDK15. I need you to debug these lines and figure out which of these two lines that sets res = FR_DISK_ERR.

RE: FatFs question

Woody Hung — Mon, 07 May 2018 00:22:05 GMT

How do i know the block size and block count ?

thx.

RE: FatFs question

haakonsh — Fri, 04 May 2018 13:04:47 GMT

What is the block size and block count of the disk?

RE: FatFs question

Woody Hung — Thu, 03 May 2018 01:16:50 GMT

Excuse me!!

i posted no correct message

New error message :

I discovery the return value is FR_DISK_ERR.

RE: FatFs question

haakonsh — Wed, 02 May 2018 14:28:27 GMT

We need information that describes the problem, in detail.

RE: FatFs question

Turbo J — Wed, 02 May 2018 10:43:10 GMT

Error stil is in code not shown. I'm out.

RE: FatFs question

Woody Hung — Wed, 02 May 2018 00:40:19 GMT

static void write_data_to_sd_card_and_determine_file(	uint8_t *data_array,
																											uint16_t data_array_index)
{
	bool file_size_determine;

	file_size_determine = SD_card_for_file_size(data_array_index, file_name, testcount);

	SD_card_write_string_in_file(data_array, data_array_index, file_name);
	
	testcount++;
}


void SD_card_write_string_in_file(uint8_t* string, size_t string_size, uint8_t* file_name_array)
{
	  static FIL file;

    uint32_t bytes_written;
    FRESULT ff_result;
	
		NRF_LOG_INFO("Writing to file %s ...", file_name_array);
		ff_result = f_open(&file, file_name_array, FA_READ | FA_WRITE | FA_OPEN_APPEND);
		if (ff_result != FR_OK)
		{
			    NRF_LOG_INFO("ff_result: %d .",ff_result);
				NRF_LOG_INFO("Unable to open or create file: %s .", file_name_array);
				return;
		}

		ff_result = f_write(&file, string, string_size, (UINT *) &bytes_written);
		if (ff_result != FR_OK)
		{
				NRF_LOG_INFO("Write failed\r\n.");
		} 
		else
		{
				NRF_LOG_INFO("%d bytes written.", bytes_written);
		}
		 (void) f_close(&file);
}

Error message :

I added line is 25.

RE: FatFs question

Turbo J — Mon, 30 Apr 2018 18:55:32 GMT

Without looking at SD_card_write_string_in_file(), my guess is: Stack overflow.

Why didn't you post the function that actually fails?

RE: FatFs question

Woody Hung — Mon, 30 Apr 2018 00:59:26 GMT

I used the code init the fill system.

void fatfs_init(void)
{
    static FATFS fs;
    static DIR dir;
    static FILINFO fno;
    static FIL file;

    FRESULT ff_result;
    DSTATUS disk_state = STA_NOINIT;
		
		uint8_t string_start_init[] = "\r\nSD card init\r\n";
		uint8_t file_name1[] = "Ant00000.TXT";
		size_t	string_size;

    // Initialize FATFS disk I/O interface by providing the block device.
    static diskio_blkdev_t drives[] =
    {
            DISKIO_BLOCKDEV_CONFIG(NRF_BLOCKDEV_BASE_ADDR(m_block_dev_sdc, block_dev), NULL)
    };

    diskio_blockdev_register(drives, ARRAY_SIZE(drives));

    NRF_LOG_INFO("Initializing disk 0 (SDC)...");
    for (uint32_t retries = 3; retries && disk_state; --retries)
    {
        disk_state = disk_initialize(0);
    }
    if (disk_state)
    {
        NRF_LOG_INFO("Disk initialization failed.");
        return;
    }

    uint32_t blocks_per_mb = (1024uL * 1024uL) / m_block_dev_sdc.block_dev.p_ops->geometry(&m_block_dev_sdc.block_dev)->blk_size;
    uint32_t capacity = m_block_dev_sdc.block_dev.p_ops->geometry(&m_block_dev_sdc.block_dev)->blk_count / blocks_per_mb;
    NRF_LOG_INFO("Capacity: %d MB", capacity);

    NRF_LOG_INFO("Mounting volume...");
    ff_result = f_mount(&fs, "", 1);
    if (ff_result)
    {
        NRF_LOG_INFO("Mount failed.");
        return;
    }

	NRF_LOG_RAW_INFO("");

	string_size = sizeof(string_start_init) - 1;
	SD_card_write_string_in_file(string_start_init, string_size,  file_name1);
    return;
}

RE: FatFs question

haakonsh — Thu, 26 Apr 2018 13:29:17 GMT

I need to know how you have initialized the file system, do you have any code, tracelogs, or logs that you can share?

RE: FatFs question

Woody Hung — Thu, 26 Apr 2018 05:12:49 GMT

I used 8GB sd card.

If there are two file in the sd card.

The one is 16KB.

Another is 14 KB.

If i write data to 14KB file, will be successful.

If i write data to 16KB file, will be failure.

RE: FatFs question

Turbo J — Wed, 25 Apr 2018 12:53:43 GMT

Unusual, as the common cluster size of multi-GB-sized SD(HC) cards is 32KB. Did you try different cards?

RE: FatFs question

haakonsh — Wed, 25 Apr 2018 12:35:19 GMT

Hey Woody,

[quote user=""]Over the max size of file, when i write data to sd card, will be failure.[/quote]

I need the trace info.

Cheers,

Håkon.