LPC43XX acting as an SD card?

Discussion created by lpcware Employee on Jun 15, 2016
Content originally posted in LPCWare by rnunes on Sat Jan 10 10:25:45 MST 2015
I want to develop an "Sd host tester" and I was wondering if this MCU SD/MMC interface peripheral can act as a slave in the SD bus.

If it's not possible, what do you think it's the best way? I have a few ideas in order on how to do that:

  [*]GPIO -> without DMA it's probably not doable, right? It's a 50Mhz synchronous bus, GPIO (with or without ISR) it's probably not enough
  [*]SGPIO -> this looks like it's the way to go, specially with DMA.
  [*]Other ideas?