twolazy

Sorry to hear about your misfortune. Well I did manage eventually to get it to upload and download. Problem is now, whatever I download, doesn't upload with the same CRC. I am thinking perhaps its my usb to serial adapter. This weekend i'll attach it to my IBM XT and use an old verison of procomm plus and try again. So close atm! I managed to upload and download using ASCII hex file transfer w/ the terminal I posted earlier. I tried xmodem a few times and no luck. I am beginning to wonder if perhaps its xmodem-1k? Or maybe its just the fact my digelec machine has 64k ram and i'm trying to upload 181kb for a 27c256. Not quite sure what I am doing wrong here. Do you know if you have to span files to ram size? Beginning to wonder if that is what I am doing wrong here... If I can't get it here in the next few weeks, I am just going to buy a willem programmer and be done with it. I was hoping this be easier to transfer files too.

Wow just Wow. Such a cool idea! I second the leather/pleather idea. She could prob open a side business doing this for all sorts of vintage machines. Ton of us video game geeks out there!

Nice work! If you can get those fuzzy white lines out Atm I just use an old cable box for my old systems but i love the idea of using the existing modulator box on the system! Double props for that!

My first atari 2600 was the family's orginal first year sears model. Ahhh fond warm fuzzy memories. Now I want a sears one again!

http://rapidshare.com/files/297449333/digielec_824_Portable_EEPROM_Programmer_User_Manual.zip.html Voila! Here's the manual for download! =)

Actually I'll do one step even better and mail you a paper copy and cd if you wish, just PM me your address. Wouldn't cost much more to mail, and I'll just print it out at work! Heh. BTW here's a direct download link to realterm - http://sourceforge.net/project/showfiles.php?group_id=67297 You want the top link, Realterm_2.0.0.57_setup.exe Great thing about this program is that you can easily make front end loaders for it! It supports scripting and activeX commands. So with a little work should be a great replacement for the OEM software, while being able to work in any windows/linux os! I was thinking that after we have these machines up and running, and everything is golden, to create a yahoo project or similar for it. That way all this knowledge is archived for others who can't find a single piece of info on these great burners. Such a shame logical devices decided to just abandon any support.

Ok after some asking around to my satellite friends, since I know they use jtag alot, as to why my terminal connection on winxp isn't working. I was recommended a different program, which actually connects!!!! Works great, has xmodem features, and even installs its own driver for direct communication! woot! Program is called "realterm" http://realterm.sourceforge.net/ its freeware, just remember when you go to install it, there's some check at the bottom as an option to install an optional driver layer, make sure to check that on install and all is good. Only applies to Win NT/2k + though. Me and lower don't need this extra driver, hence why hyper-terminal would work on those os's and not this one! My settings (on the unit function #32 settings are as follows) 9600 baud, half duplex, 7n1, dsr off, xon xoff is on, trailer off, header off, auto split on) (on realterm on my winxp machine) Com2 over usb (radio shack one) Null modem adapter 9600 baud, 1 stop bit, 7n1 no error control, xon 11 xoff 13, half duplex, ANSI emulation (the second one down on the first tab) Now once you connect you'll get a yellow >, press N and enter, should report back 824, next press L, should list the ram contents of the programmer. Z is to quit. Rest the commands will be in the pdf. make sure that when you start the program, you choose the rts/cts half duplex option, seems to work a treat. Also make sure the terminal emulation is set to Ansi. If you want some screenshots I will be happy to provide them. Now to just figure out how to get it to send/recieve files and we are in business! =) thats a pic of my ram dump, sorry it was blank didnt copy anything to it but it worked correctly

Well I have the pdf 90% or so scanned in and finished, Just have to do the appendix now! Here's the compatibility list in the meantime. Its not really part of the manual, just something that was added into it by the last owner. I'll add it as the last page of the manual pdf for future reference. If you happen to use any variants not listed, please note the info and share. I'll be happy to append the list with you and try to have a nice cross-reference. I have yet to try any 27SF512 chips but I have a feeling they will work, but might require an adapter to fool it into thinking its a 27C512. I think i've seen them for the willem line of programmers, and should quite easily be adapted. Or just diy.. just need another socket, prototype board, a few caps, a mosfet and patience. =)

Sorry I have 0 software diskettes, never came with any. Wish I had them too, be sooo much easier... LOL Anyways, I managed to scan in teh entire manual last night, and a supplemental sheet that was included showing what chips it supports. I have about 1/2 it cleaned up and centered and should have it finished by this weekend. Be forewarned its an over 20mb+ PDF file. I did my best to keep it the smallest i could, even converted it all to greyscale. As for an update, I did manage to use the remote console!!!!! I hooked it up to an old Phillips Velo 1 wince device, through the comm port. Turns out it needs a null modem adapter! Anyways, the wince 2.0 terminal hooked right up, everything worked , except 1 problem. The wince terminal has no way to upload or download files!!!! DOH! But it does require everything sent to the device be encoded into Intel hex which could prove useful! Older Wince devices 1.0/2.0 required everything to be converted before uploaded to the device. Could save me the time on having to convert the bins to hex!!! So now its just time to either A, figure out another terminal software, or B, use Qbasic and write up a real fast terminal software with public code, and provide a help and shortcuts. I'll figure that out later i guess. But i did manage to remotely dump a 27c512 to its ram, then send it over serial to the Velo1, run a version check, and then end the session after. Now i just need the right software to upload and download. LOL. Thanks a bunch so far, I will be using your bins as my test bins for figuring out how to program an eprom on it. BTW ill take whatever datasheets you have that are relevant to this burner. Saves me the work of tracking them down!

Woot a response already! Ok I do have the model 824, have the original serial cable (db25) and a manual. I also have the software pack version 3.11. All self tests report back good. So far I have not had any luck communicating to it. I have Winxp 32bit and using the hyper-terminal provided. It starts a connection fine but from there I am lost. LOL. Maybe its my usb to serial cable, im not quite sure. Works fine with even my wince devices, so I don't really think its the cable persay. Maybe im missing something or need to try a diff os? Only things i've managed to do thus far is erase my uv eproms, and copy a bios multiple times. So at least im pretty sure the hardware works fine. Sadly I did not receive ANY software with it, and would love to have the original if possible. I still own a few vintage pc's, one being my XT 286. Perhaps I could try it on that... If you want a copy of the manual let me know, I am going to scan it in this weekend. I misplaced it already once, and went nuts trying to find it. Only copy on the web was on ebay for $100!!! eek! So if you want a pdf copy i'll be happy to share. Also, im willing to pull apart the pack if you can figure a way to dump the PAL/GAL/EEPROM so you can upgrade yours to same revision...

Sorry , I know this is an old thread, but this is the only one I have come across on this programmer whatsoever... Ok I have the same model programmer and am struggling on how to use this, but i did figure out how to erase. OK first you have to press function, then 33 for timer. Next keep pressing enter till it goes to the function screen again. You can set the timer etc thru this. Once its at the next function and you went through all the settings, press the LAMP button. This will start the UV erase timer and turn on the lamp. Now to figure out how to program on it xD