Learning to input programs on HP-41

[Jeff_Birt]

Thanks Bob. I first tried shaving the over molding on a connector so it would fully seat. I got a power connection but no recognition from the PC that a new USB device had been plugged in, no sound, nothing in Device Manager. Going into Diagnostics on the DM41X USB stat=1 does not change but pwr=0 changes to pwr=1 when the USB cable is plugged in.

I then removed the DM41X back to avoid any interference problems. Still no joy. I purchased the cable you linked to; saw your recommendation on the SM forum. Looks like it will be here tomorrow rather than today. If that does not work I'll try to trace the USB signals through to the DM41X uC.