Hello team, I'm Dhanyalakshmi, We have designed a custom board based on the FRWY-LS1012A evaluation board, with minimal changes. The main differences are the removal of the audio jack, Micro-Click connectors, and Ethernet ports, while all other components remain the same. I successfully flashed the U-Boot firmware ( firmware_ls1012afrwy_uboot_qspiboot.img ) onto the custom board’s QSPI NOR flash, and the board is booting correctly with console output as expected.
The next step was to load the OS from a micro-SDHC card. I formatted the card and copied both the OS image ( ls-image-main-ls1012afrwy-20240806042644.rootfs.tar.gz ) and the bootloader firmware ( firmware_ls1012afrwy_uboot_qspiboot.img ) onto it. *Note:* The same micro-SDHC card successfully loads the OS on the evaluation board. However, on the custom board, the micro-SDHC card is not detected. I used the mmc info command to verify this. While the card is detected on the evaluation board, it is not recognized on the custom board. I would like to review the RCW file to understand the functionality of multifunctional pins, particularly those related to the SD card interface. I have tried searching for it, but I need to know how to identify which RCW file is included in the firmware_ls1012afrwy_uboot_qspiboot.img firmware image that provides information about the SD card pin configuration. Additionally, I would like to understand how RCW files are written and configured. Could you please assist me with these queries? Thank you.
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