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SD/MMC 8-bits with Cortex-M4 (LPC4337)

JeanMarc Rouxel

Hello,

I'm working on a new design based on the Cortex-M4 LPC4337 (NXP)
On my board, there is a e-MMC Memory (MTFC4GMDEA-1M WT) with 8-bit data interface.
My µVision version is 4.74 and I'm using the driver SDIO_LPC43xx.c.
I'm selecting the Memory Card Drive 0 with the SD-Native Bus Mode.
But the finit() function is always failing.

Any suggestions? is the 8-bit interface the problem ?

regards,
Jean-Marc

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