Hello Arthi, Thank you for your reply. Sorry for the delay because I wanted to try a couple of things before i got back to you. I did what you suggested but it still hasn't sensed the insertion/removal of the SD Card. I've sinced changed to a normal SD Card ( 2 GB ) as well since I was using a SDHC card before this. 1) I've also made changes to the mmc.c file, specifically in the frequency part #define DLY_US(n) __delaycycles (n* (25 / 1000000 )) of the program. 2) I am afraid i am not too well-versed in the Pins/Ports topic although I have implemented your suggestions in your previous reply. PINS - Is it such that it depends on the second number of the Pin, eg. SPI_SIMO is on pin 3.0 hence BIT0? A follow-up question would be where can i go to learn more about the link between program and hardware pins? PORTS - from the Port Settings you provided above, I found the correlating Information in the datasheet : I don't quite follow this part. Why is it P 2 SEL? I would be very grateful if you could provide a short but linking explanation of how the ports relate with each other and the pins. Or perhaps point me to a documentation from TI that would make this clearer for me. I thank you in advance and have a nice day!
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