I have one of those XGecu T48 programmers. It works on some other EEPROMs. Haven't tried it on 27C256 yet.
On Wed, Feb 15, 2023, 18:06 Brian K. White <b.kenyo...@gmail.com> wrote: > TL-966, any version. I like both my old TL-866A and newer TL-866II+ > because they are supported by the open source "minipro" util. But the > maker no longer sells those and you have to get them from ebay or amazon > or aliexpress. > > The current models T48 and T56 are apparently fine too, you are just > limited to using their windows app to run it, which does work in wine so > it's actually still usable from linux (this much I do know directly > because it's the same for the II+). > So depending on what you care about, a CS will be the cheapest if you > can find one. It's the same as the A but without an ICSP heater for > in-circuit jtag programming of some chips. It is perfect for DIP eproms. > The A version adds the icsp header, and the II+ version has new guts > inside and is like the A but newer and supports more chips. > > You will also need a uv eraser. There's a generic $15 blue platic one > you can get anywhere. It's fine. > > https://www.ebay.com/itm/255956579505 > https://www.ebay.com/itm/363143496160 > > If you don't care about being able to use the open source software, you > can get either of the current models from their official store. The > website looks sketchy but autoelectric.cn is the real site and links > from there go to their official ebay and aliexpress shops. > > You don't really need to get one of the kits with 50 different adapters > just for working on these old machines that have all DIP parts. You can > always get them later if you decide you need them. A used TL-866CS will > be the cheapest since it's both an old model now and lacks the ICSP port > so most people want the A or II+ versions. But the age doesn't matter > at all. The minipro software supports it and can handle every chip > you're likely to encounter in 80's machines, and really you're probably > only ever even going to care about exactly one chip, 27C256. > > > > On 2/15/23 16:46, Joseph Colson III wrote: > > While surfing the private files on the Club100 site the file below > > caught my eye as I have a booster pack and would like to update the > > System ROM. My question for the group is how much do the programmers > > cost? What inexpensive programmer would you suggest? Is it difficult > > to program? Any links to software or documentation would be helpful. > > > > As Always Thanks for your help, > > > > Joe > > > > ( BP1ROM_Fixed.bin ) > > > > This is the Booster Pak v1.23 "BP1" main system ROM image which includes > > the multi-page file display bug fix. With the original ROM, if you have > > more than two pages of files to display, you would only ever be able to > > see the second page of files when pressing shift-down. The third page of > > files or beyond was inaccessible due to a limitation in Traveling > > Software's TPDD client. Well, with this replacement BP1 system ROM > > image, the limitation is gone! The bug fix was originally made available > > in Ken Pettit's release of the TS-DOS 4.10 option ROM. This fix has been > > extended to all RAM versions of TS-DOS, as well as the SARDOS option > > ROM. And now, it is available for the "Disk" client that is in your > > Booster Pak's system ROM. Just burn this image to a standard 27C256 > > EPROM and replace your Booster Pak's "BP1" chip which would be all the > > way on the bottom-right side of your Booster Pak's sockets. > > > > -- > bkw > >
