I'm using a uE320 from DevaTech in the UK, it has a ROM and RAM, the ROM is basically a loader for the program which is sent down the serial port.

There is an indicator LED which is orange when waiting for a program, red when downloading, and green when it is running the program which was downloaded. both ROM and RAM are 32K hence the 8000h start address.

The download works, as there is a little test program which cycles the led colours, downloading that works fine... so I can only assume that it's downloading and working, but I'm pretty sure it ok.

I have switched the pins high and it has worked, and I have switched the pins low and it has worked.

The program should show me a nice square wave.. but I don't get that :-(


Chris.