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  • Case ID: 327951
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Facing errors related to sd card after a time

Rakshita

I integrated the sd card code into my main code in which the the wifi module (nrf5340 + nrf7002) receives uart data from a different device 
What I need to do is that whenever the wifi gets disconnected I need to write (save) the data into the sd card and when it will again get reconnected to wifi I need to read the data from the sd card 
I have made a separate function which I have made as thread in which I manage the write and read function as per the wifi connectivity status and data receiving from the different device.

For reference I am attaching my code below

4336.wifi_over_http.zip

Get 
[00:00:39.289,855] <err> sd: Failed to read from SDMMC -116
[00:00:39.289,855] <err> sd: Card read failed
[00:00:39.289,886] <err> fs: file write error (-5)

such kind of errors I get after some time

Parents
  • 0 in reply to Priyanka

    Thanks for your reply
    But I am not using flash partition in my overlay file


  • 0 in reply to Rakshita

    Hi Rakshita,

    Could you verify whether your sd card is formatted and working correctly? Maybe verify this by using the sd card in another device. 
    This is just because the error SDMMC -116 may suggest a sd card issue or that the sd card is not accessed properly.

    -Priyanka

  • 0 in reply to Priyanka

    Actually what happens is sometimes it works very smoothly and sometimes after working for sometimes it suddenly starts giving this timeout related error and failed to open the file


    [00:00:15.659,393] <inf> home_demo: Data is the same as the last written data. Skipping write.
    [00:00:15.659,423] <inf> home_demo: cloud value: 2
    [00:00:16.659,515] <inf> home_demo: data received: 1
    [00:00:16.669,860] <inf> home_demo: Read total 1919 bytes from file /SD:/testfile.txt

    [00:00:16.671,752] <inf> home_demo: Data is the same as the last written data. Skipping write.
    [00:00:16.671,783] <inf> home_demo: cloud value: 2
    [00:00:17.671,844] <inf> home_demo: data received: 1
    [00:00:17.682,067] <inf> home_demo: Read total 1919 bytes from file /SD:/testfile.txt

    [00:00:17.683,959] <inf> home_demo: Data is the same as the last written data. Skipping write.
    [00:00:17.683,990] <inf> home_demo: cloud value: 2
    [00:00:18.684,051] <inf> home_demo: data received: 1
    [00:00:18.694,213] <inf> home_demo: Read total 1919 bytes from file /SD:/testfile.txt

    [00:00:18.696,105] <inf> home_demo: Data is the same as the last written data. Skipping write.
    [00:00:18.696,136] <inf> home_demo: cloud value: 2
    [00:00:19.696,594] <inf> home_demo: data received: 1
    [00:00:21.289,855] <inf> home_demo: UART_RX_BUF_RELEASED
    [00:00:21.289,855] <inf> home_demo: UART_RX_BUF_RELEASED
    [00:00:21.289,886] <inf> home_demo: UART_RX_DISABLED
    [00:00:31.180,816] <inf> home_demo: UART_RX_BUF_RELEASED
    [00:00:31.180,847] <inf> home_demo: UART_RX_BUF_RELEASED
    [00:00:31.180,847] <inf> home_demo: UART_RX_DISABLED
    [00:00:41.073,211] <inf> home_demo: UART_RX_BUF_RELEASED
    [00:00:41.073,242] <inf> home_demo: UART_RX_BUF_RELEASED
    [00:00:41.073,272] <inf> home_demo: UART_RX_DISABLED
    [00:00:42.926,300] <err> sd: Failed to read from SDMMC -5
    [00:00:42.926,361] <err> sd: Card read failed
    [00:00:42.926,391] <err> fs: file read error (-5)
    Error reading from file /SD:/testfile.txt [-5]
    [00:00:50.965,911] <inf> home_demo: UART_RX_BUF_RELEASED
    [00:00:50.965,942] <inf> home_demo: UART_RX_BUF_RELEASED
    [00:00:50.965,972] <inf> home_demo: UART_RX_DISABLED
    [00:00:54.978,851] <err> sd: Failed to read from SDMMC -5
    [00:00:54.978,851] <err> sd: Card read failed
    [00:00:54.978,881] <err> fs: file open error (-5)

  • 0 in reply to Rakshita

    Have you tried using a different sd card, just to rule out the sd card problem?

    -Priyanka

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