Dave,

two modules... the first was serial ethernet



and then yesterday an MM/SD card reader.



The latter (when using the downloadable Hex file) should display a message that there is no card inserted when hooked up to via serial to a PC running a serial communicator (such as that contained inside microcode studio. However on power up and with it connected at the correct baud rate, I get several lines of hyroglythics, which on sebsequent re-booting the EP5 board is repeated exactly. However if I change crystals and do the same the characters displayed are different, but again are the same on subsequent re-boots of the EP5. The only difference is that the schematic shows an 8Mhz xtal and I don't have one (well not until I get home as my order has just arrived!) - hence the question about it being sensitive as to what clock frequency these thing run at.

On the serial ethernet - nothing worked so I suspect the card is faulty !