Hi

Apologies for my delay in replying. Story so far is - I tried to reset the sbc44 from other hard drive etc with fresh software but all to no avail. The program I had downloaded had somehow corrupted the boot loader and this meant that the program mode could not be entered and the led program mode indicator was not flashing as it should be.

I then ordered a k8076 kit programmer in order to reprogram the boot loader into the sbc via the icsp connector. Unfortunately this programmer requires a proper serial port and Windows XP. My laptop has no serial port but has XP. I have an old Win 98 computer with a proper serial port that I was hoping to use. Also the programming software supplied only supports the 2550 pic not the 4550.

While searching the internet I came across pc-prog (which you may be aware of) and noted it could work with my now-built serial programmer. This software is very good and I was able to reprogram the boot.hex bootloader program back into it and it then came back to life. (Software also works in Windows 98 and supports loads more pics.) Hopefully I can now continue where I left off.

Many thanks.