PROBLEM WITH SERIAL
Interesting, I know it is not easy to program the serial device, but it
does work. Are you using the SDCmdSetParams command to set the parameters?
Seting them when you open the device does not set all the parameters.
Other parameters can only be set at opening the device. In particular
baud, bits, stopbits, and parity are _not_ set by the open routine.
>> Gary <<