SD/MMC Questions

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by bunrockter on Sat Aug 04 13:43:37 MST 2012
I recently got the Hitex board and I am trying to get the SD peripheral up and running. I have chose not to use the driver the comes with the 4350 because I am using a state based design, and I want to tightly integrate it with a state machine.

I have looked at the code, and set up my initialization accordingly. I get and interrupt for card presence, but I am unable to get a Remote timeout or command done interrupt to fire. I am trying to send the idle command to the card (which I know doesn't respond) but I would expect to get a command done interrupt & I don't.

Is setting up the args register, and setting the START_CMD bit in the CMD register all I have to do to send a command?