On Wed, Jan 11, 2023 at 8:14 PM h...@dec.dog via cctalk < cctalk@classiccmp.org> wrote:
> appreciate the reply, Matt! unfortunately it doesn’t seem that that did > the trick, another round of feeding it disk images and it still doesn’t > want to boot. > > i tried the block and sector RX50 images on the dbit[.]com archive both > as-is and converted to IBM MFM raw and HxC formats, and the teledisk images > on ibiblio[.]org converted to the same. > > my img.cfg: > > [rx50] > cyls = 80 > heads = 1 > secs = 10 > interleave = 2 > bps = 512 > id = 1 > rpm = 300 > rate = 250 > mode = mfm > iam = no > > should i start suspecting my gotek (or worse, the system board) or is it > still possible that i’m at fault? > I don't think you want the interleave. At least for the Rainbow and the Pro they did do an interleave of 2, but it was done at the logical level, not the physical level (which is confusing). So, if the images are physical images (that is, they record the physical sector numbers that are on the media), then you don't need it. If the images are logical (so some or all of the tracks have the interleave applied), then you will need it. Also, I think should be 0. Unlike the PC, where 1 and 0 are flipped by a cable (you have a straight through cable, right?), the top RX-50 is ID 0 and the bottom is ID 1. Warner > — > .hush > Got interesting stuff to sell? Let me know! > Looking for DEC, IBM, CDC, SGI, Data General, and more! > > > On Wednesday, Jan 11, 2023 at 8:47 PM, Matt Burke via cctalk < > cctalk@classiccmp.org (mailto:cctalk@classiccmp.org)> wrote: > > On 12/01/2023 00:58, h...@dec.dog via cctalk wrote: > > > hello cctalk! i have been working for the past few days on a DECmate > II with what i believe to be an ailing RX50. i have a gotek with updated > flashfloppy firmware, but for some strange reason i have been completely > unable to get the DMII to boot a floppy image from it. > > > > > > i have been trying to convert the OS/278 and WPS images on the dbit > and ibiblio archives into a working format for the gotek but none of them > will work. at this point i have tried too many conversions to recall but > they all result in the same blinking floppy icon when the unit boots. i > have “host = dec” in my FF.CFG per the wiki. > > > > > > has anyone else been able to get this working? if so, could you please > provide known-good images for a gotek, or the steps to generate them? > > > > > > > I've used a Gotek (semi-successfully) with the DEC Rainbow using raw > > image files and the following lines in ff.cfg: > > > > host = dec > > pin02 = low > > pin34 = rdy > > > > The image file format should not be important though you may run into > > problems with sector ordering depending on how the source image was > > created. It was the pin02 and pin34 lines that got it working for the > > Rainbow. > > > > Matt >
