Hi John / Gary, I've got it working now. I reprogrammed the ROM with V3.5 and now it's working, I guess the first time I wrote the ROM with V 3.5 a bit/byte didnt take properly. Thanks for the confirmation Gary, it was your post that prompted me to take another look -) regards and thanks David Fry
On Saturday, August 16, 2014 10:35:28 PM UTC+1, Gary Kaufman wrote: > John and David - > > The V3.5 firmware appears to format 3.5" disks fine on my system. > > - Gary > > On 8/16/2014 5:18 PM, John Monahan wrote: > > Will need a day or two Dave. For others, Archer Electronics supplies > WD2793’s > > http://anchor-electronics.com/ > > It’s best to phone them however. Great source of chips BTW. > > > > John > > > > > > > > *From:* [email protected] <javascript:> [ > mailto:[email protected] <javascript:>] *On Behalf Of *David Fry > *Sent:* Saturday, August 16, 2014 12:47 PM > *To:* [email protected] <javascript:> > *Cc:* [email protected] <javascript:> > *Subject:* Re: [N8VEM-S100:4952] Re: ZFDC Controller under control of the > PC-BIOS?? > > > > Hi John, > > > > I have just got my ZFDC board working today after waiting 3 weeks for a > WD2793 to arrive from China (my first WD2793 from another US supplier was > dead). > > > > I'm using ZFDCDIAG.COM to test the board, all my boards are > S100Computers.com boards, Z80CPU, RAM/ROM, Console, CF IDE board on default > ports. > > > > On ZFDC firmware V2.8 everything seems to work fine, I can format a 3.5" > floppy for CPM or DOS, I can perform random read/write tests all OK. > > On upgrading to firmware V3.5 I noticed that the format disk command '00' > seems to send the ZFDC board into reset with the two left hand digits > clocking over (like before the board is initialised), disk random > read/write seems to be fine and read sector etc, it only plays up if I try > to format a disk > > > > Reverting my firmware back to V2.8 and Format works fine. > > > > Can you check on your board with a 3.5" disk to see if any bugs have crept > in to the latest firmware version. > > > > thanks > > > > David Fry > > > -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
