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[iMX6UL] How to verify SDIO interface connecting a device?

Question asked by Jim Huang on May 5, 2018
Latest reply on May 7, 2018 by igorpadykov

Hi NXP,

 

Currently, our HW design using iMX6UL SDIO1 connecting Wifi module and SD card socket via SDIO expander.

We use an SDIO select PIN to switch one of two devices.

 

Does iMX6UL BSP have command or other debug message can verify SDIO interface?

For example, if the SD card has been already inserted, how I know iMX6UL detect this device well?

 

My main purpose is bringing WIFi module in BSP, can I detect Wifi module via SDIO before Wifi driver porting? 

 

Thanks,

Jim

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