My USB Interface board connects fine to USB, and correctly reports the analog and digital input values to the PC. The 2 counters work fine too.
Output 8 flashes during USB connection, so I don’t think this issue is hardware.
The prob is that none of the outputs respond (analog or digital) and clicking the ‘reset counter’ buttons has no effect either (although they worked before I upgraded the k8055d.dll
I’ve tested the output pins of the PIC and they are sat at 0v, so it seems that the PIC isn’t receiving the instructions from the PC.
I am using the demo software which came with the kit.
Thanks for any help.