SD Card mount error using fat_fs zephyr example code

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hello sir ,

I am trying to run fat_fs example code , but i got mount error ,

my connections spi1,

SCK = 31,

MOSI = 30

MISO = 28

CS = 17,

[ovrebekk]

Hi

What kind of hardware are you using? 

Have you ensured that the SD card is correctly connected to the nRF52 device?

Best regards
Torbjørn

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yes it connect properly , i m using nrf52840dk and my in house module of SD card . N i run nrf sdk example with same hardware and its run properly , but i want to run in zephyr . so help me

[ovrebekk]

Hi

Have you tried to scope the SPI lines to see if there is any communication happening between the nRF52 and the SD card?

Best regards
Torbjørn

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ok will try

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Hello Sir ,

I tried to check all the pin signal on logic analyzer , signals are there but still got mount error .

[ovrebekk]

Hi 

Which Zephyr version are you using?

Is it a tagged release, or the master branch?

I have a SD card laying around and will try to reproduce your issue tomorrow. 

Best regards
Torbjørn

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Zephyr version 2.4.0

nrf connect SDK 1.4.0

"I have a SD card laying around and will try to reproduce your issue tomorrow. " - Ok sir

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hello sir , any updates on this i had try but still cant get any result i created overlay n conf file and made new project .

[ovrebekk]

Hi

Sorry for the slow response. 

So far I have also been unable to get the example in Zephyr running, I can't see any communication on the SPI bus. 

Are you able to share your overlay file?

I will do some checking internally to see if anyone else have had success running this example on the nRF52840DK. 

Best regards
Torbjørn

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SDHC.zip

Its OK sir no worry , So now I sent you my entire project zip file , so you can easily see all  files .

I want to run this program for my company project so it is important for me .... thank you

[ovrebekk]

Hi 

I got the project working on my end with some input from a colleague, and I have attached it here:

7343.fat_fs.zip

The critical aspect was to add the following lines to the prj.conf file:

# SPI
CONFIG_DISK_ACCESS_SDHC=y
CONFIG_DISK_ACCESS_SPI_SDHC=y
CONFIG_SPI=y
CONFIG_SPI_3=y
CONFIG_SPI_NRFX_RAM_BUFFER_SIZE=8

Can you give this a go and see if it works for you also?

Best regards
Torbjørn