Hi _at_ll, please see the two JEDECs attached. With a side-by-side comparison you can easily spot the problem. Years ago I tried to find out which one is the correct way and by studying a datasheet which contained the programming algorithm I came to the conclusion the TopMax (which I owned at that time) is doing it the wrong way... however everyone should do his own judgements. ;-) Another note: I do it the same wrong(?) way in the program you've already found on zimmers. /Frank On 24.05.2020 13:31, Francesco Messineo wrote: > Hm, I assume Data I/O would have fixed such a bug in the first place. > So are you saying that your programmer makes a good file but interpret > it the wrong way when programming? > Am I understanding it correctly? > Can anyone provide a "wrong" file then, so I can check if that's the > case on the 2900 (running the latest firmware available as of > today...)? > > On Sun, May 24, 2020 at 12:45 PM Frank Wolf <webmaster_at_frank-wolf.org> wrote: >> Just as an additional information: >> >> The TopMaxII Programmer which I used to create is one of the programmers >> doing it >> the wrong way. >> >> /Frank >> >> On 24.05.2020 12:23, Gerrit Heitsch wrote: >>> On 5/24/20 12:10 PM, Francesco Messineo wrote: >>>> Hi all, >>>> I've just programmed an 82S100 (actually a clone, but my DATA I/O >>>> 2900 didn't >>>> complain and verifies ok) with the .jed file contained here: >>>> http://www.zimmers.net/anonftp/pub/cbm/firmware/computers/c64/82S100%2bJedec.zip >>>> >>> What kind of clone? That might be important. A while back someone on >>> the forum64 site got a hold of a bunch of NOS PLS100 PLAs and was able >>> to program those. I got 2 of them and they work. >>> >>> Gerrit >>> >>> >>> >
Archive generated by hypermail 2.3.0.