I just programmed the Wizzo image into a 27512 EPROM and fitted it to the 5th column ROM socket on my A5000steve3000 wrote:I wonder if this ICS Wizzo ROM may actually result in better compatibility with SD->IDE interfaces on the A5000/A4 - since IDEFS has no problems with newer SD->IDE interfaces, where ADFS fails.
I don't have any of the single chip SD to IDE boards but I do have SD to compact flash converters which I use with the RISC PC so I plugged one of those into a CF to IDE interface resulting in SD>CF>IDE. This converter doesn't work with ADFS on the A4000 & A5000, giving broken directory errors when trying to mount a drive (it does work on a RISC PC). The converter works on my A5000 with the IDEFS in the Wizzo ROM and it identfies itself as FC1307 in !Hform which I think is the same chip as the new single chip SD to IDE boards. (The old 2 chip solution used FC1306)