Has anyone ever used to connect SD card to RCM6700

Question

I want to connect SD card to RCM6700. There is a sample program that use serial port B to make a connection with SD card. I want to move it to serial port C because I want to use serial port B for another purpose. But when I move the connection to serial Port C (and also the program) the debug windows always show an error message. Anyone can help how to do it? Thanks

Answer 1

Hello,

I think you can use serial port pins as below for SPI port to interface SD card.

PA7 is the CS line on the SD card
PD2 is the serial C clock line(SCLK)
PC2 (TXC) is the data output(MOSI)
PC3 (RXC) is the data input(MISO)

Answer 2

Have you verefied that your port C is properly configured as referenced in the MiniCore RCM5700/RCM6700 User’s Manual, check page 86 for serial configuration.
http://ftp1.digi.com/support/documentation/90001191_B.pdf

Answer 3

Hello,

we are trying to add an SD slot to the RCM6700, but we are not able to run the example program sdflash_inspect.c.

We are using the serial port C, and making the #CS with PE0, but it doesn't work at all.

Would you please tell us how are you interfacing your SD card with the RCM6700?.

Thanks in advance,

Hernán