MiSTer FPGA Forum

I got my snac2iec to work with a newer IEC cable and 1571 drive. My 1541-II and pi1541 would not work with any cables I have even though they work on a real C64. My IO board is v6.0 I bought on Etsy nearly 3 years ago so that could be the issue if snac specs were different back then?

GND and LV is 3.3V
GND and HV is 4.81V

I'm not using a USB cable; it's plugged into IO board directly
I've used two different IEC cables which work fine with 1541 or pi1541 connecting to a C64

venice wrote: ↑Mon Jan 02, 2023 10:21 am

Happy New Year!

Silly Question, do you enable "External IEC" in the C64 Core Hardware Menu?

Yes, that was enabled. I followed retrobits video and bought the parts from him since he mentioned in the video he had bought enough for multiple adapters.

I just tried it again with my pi1541 and that was also not recognized.

My soldering was not very good on the USB pins but I verified there were no bridges with my multimeter.

And Happy New Year as well to you. Thanks for your help!

Does anyone happen to know if v6.0 of the Mister I/O board is compatible with this SNAC2IEC adapter? I made the adapter but it is not recognizing the drive (1541-II) when connected. It's possible I did something wrong but I checked voltages and connections and they all appear correct.