I have an SD2IEC that looks like the picture below. I am looking for information on how and where to wire the disk swap switches, and also which firmware this device uses, sw1, sw2, or larsp. The device functions fine, but I am currently not able to swap disk images except through the file browser. Another issue I have is getting my C128 to boot CP/M from this device. Any information about this would be appreciated.
I have the same problem
If none work, or if you'd prefer not to redo the firmware on your
As to booting CP/M, I have found the following…
I can boot D64 and D71 CP/M images but not D81. This seems related to a short coming in all the SD2IEC variants, including the uiec and this one, a lack of support for SRQ/fast serial support in the 1581 emulation. This article describes the issue, and references a patch for CP/M but does not have a link to it. <µIEC Users Discussion Group › SRQ/Fast Serial Support>
From the thread, it appears that CP/M insists on running a 1581 in fast serial mode, and will not boot work if the fast serial support check fails, which it does on a SD2IEC device since it is not supported.
If anyone else has information about this, please share it, I would like to get my CP/M D81 images working. I would not mind patching the CP/M system files as a solution.