Facing Card ready issue for SDIO in IAR

[surabhi_sk30]

Hi

I have upgraded LPCScrypt on RT595 board.

link for upgradation of LPCScrypt: https://www.nxp.com/document/guide/getting-started-with-the-mimxrt595-evk:GS-MIMXRT595-EVK?section=l...

Trying to execute application, I am facing issue with card ready for SDIO in IAR IDE.

can you please provide suggestions on this. 

[Shaheeda]

Hi Team,

I am also getting same issue, please suggest if any solution.

Also please share if any sample SDIO applications available (using MCUExpresso / IAR) 

Below are the connections :

• Connected USB cable from PC to RT595 
• Connected RT595 to our DUT using SDIO connector
• Given USB power to DUT
• Run application in PC using IAR  or MCUExpresso

Thanks

Shaheeda

[Gavin_Jia]

Hi @surabhi_sk30 ,

Thanks for your interest in NXP MIMXRT series!

Can you provide more detailed information about this issue? Meaning, when you are running other simple demos like hello_world project, it works fine but the SDIO related one is reporting errors right? If so, which version of SDK are you using and which demo are you using? Also, please provide us with the error reporting messages, it will help us to move forward with the issue.

Wish you have a nice day!

Best regards,
Gavin

[surabhi_sk30]

Hi Team,

Thanks for your quick response.
I am using IAR version 9.10.1, internal local application:

1. Using Jlink segger debugger:
         Yes, simple hello world program is working fine, logs are coming.

         with SDIO application getting "card ready error", communication between host and our DUT is not getting established. 

2. With On-board debug probe LPClink2(CMSIS-DAP):

         SDIO interface is working fine.

Please share if any SDIO demo applications.

Do we need to make any changes in jumper settings to work SDIO even with Jlink segger.

[Gavin_Jia]

Hi @surabhi_sk30 ,

Thanks for your additional information.

Could you confirm for me if you have followed the instructions in readme.md for the board setup?

If that's the case, it's unlikely to be a situation where using the on-board debugger works fine and the external debugger is wrong. The test environment on my side is SDK2.15.00, RT595-EVK, demo evkmimxrt595_sdio_freertos.

Best regards,
Gavin