That's pretty much what it's supposed to do. I've pretty much got my head around the 8bit IntelHex format that TASM uses. Now it is just a matter of making it work properly.

Me too. My program is about 75% done. I just have to finish a few SUBs, and then do a little debugging. Aaah, you gotta love debugging!

Ok, i just ripped off the switch panel, and the Address LED's. OOOH! The ROOM!

Now, i will finish my program. When i get it done, i will post the source code, AND the compiled version. Then, i need to make some hardware! Yaha me! :cool:

More pics once i get the SRAM and BootROM connected.

Me too. My program is about 75% done. I just have to finish a few SUBs, and then do a little debugging. Aaah, you gotta love debugging!

Ok, it is done and it works!
I've only tested it with some small files so far, but it seems to load them fine. I have included everything in the ZIP file below. If you copy all the files to your Tasm31 directory, then you can run the Z80.BAT file to compile and load the TEST program. You'll have to change the .org, the address of IO port and the stack pointer addresses (In test.asm) to make it run on your hardware which is different than mine. There is a small change to the circuit to make it a little more robust when the Z80 deactivates the BusAck line. I've only tested it on one computer so far so concider it Beta 0.01.

I had to stop production on mine. I was wondering if i had to write anything to the eeprom for the END RECORD? If so, what?

Also, i take it that your hardware doesn't write it to an EEPROM? It just connects right to the z80's Address lines, and data lines, right?

I was wondering if i had to write anything to the eeprom for the END RECORD? If so, what?

No you don't need to write anything. The end record just tells your program to stop.

Also, i take it that your hardware doesn't write it to an EEPROM? It just connects right to the z80's Address lines, and data lines, right?

It is designed to be connected to a complete Z80 system that includes RAM and EEPROM. I've used it to write to an in circuit RAM. It should also be able to program your EEPROM in circuit but I cannot test it because I don't have an EEPROM like yours. I'm not even sure which one you got. My program waits 1ms after deactivating the WR line before going to the next byte. This should be enough time for a EEPROM write cycle but it is untested.
Also I have no fully tested it with the RESET line connected because of the existing hardware I'm using. So if you have problems, try disconnecting the RESET line first.

Whoa! This is a new posting time for you! Playing on the company dime, eh? Lol. Just kidding.

No you don't need to write anything. The end record just tells your program to stop.

That is what i was thinking. Ok, with any luck i will have my program done by tomorrow. Maybe yet today. I'm not sure, it depends on how board i get. :cool:

It is designed to be connected to a complete Z80 system that includes RAM and EEPROM. I've used it to write to an in circuit RAM. It should also be able to program your EEPROM in circuit but I cannot test it because I don't have an EEPROM like yours. I'm not even sure which one you got. My program waits 1ms after deactivating the WR line before going to the next byte. This should be enough time for a EEPROM write cycle but it is untested.
Also I have no fully tested it with the RESET line connected because of the existing hardware I'm using. So if you have problems, try disconnecting the RESET line first.

Yeah, that makes sence. My EEPROM is an ATMEL AT28C17. The circuit might not turn out so great. I don't really have anything to build it on. I want to use my big breadboard STRICALY for my z80 system. I do have a smaller bread board on my Radio Shack Learning Lab, but that breadboard sucks. The holes are too big, and they are too high up, so short pins don't quite reach the pins. I am going to try to rig something up so i can use 74LS273's instead. I think it should work.

Whoa! This is a new posting time for you! Playing on the company dime, eh? Lol. Just kidding

Actually you were right on the money there. I was bored and being paid.

My EEPROM is an ATMEL AT28C17.

It should work. The Max write time for that chip is 1ms. 0.5ms is typical.

I am going to try to rig something up so i can use 74LS273's instead.

No TriState buffers on those, but they'll work for a regular EEPROM programmer setup. (No in circuit programming) In my circuit you'd have to jumper the BUSREQ to the BUSACK for it to work.
Well, I'm off camping tomorrow so I won't be around here for a week or so. In other words, I'm NOT ignoring you.

Sounds great! Hopefully the next time you come back here, i will have some type of working computer!

Man, time sure flies, huh? Well, sorry for the long wait. I haven't got ANYTHING done since my last post, but, today i am extreamly board, and i think i will build the programmer today. I promis to post pics of anything i create today within the next day or two.

Ok, well, my camera has died, and my scanner refuses to scan a clear image. Oh well. I got the programmer half done, so with any luck(and if my computer doesn't crash{AGAIN}, then i will hopefully get another camera, and take some more pics.

Ok, well, my camera has died, and my scanner refuses to scan a clear image.

Scanners don't have that great of a "depth of field" so scanning 3D objects is always hit and miss, not to mention the risk of scratching the glass.

Man, time sure flies, huh? Well, sorry for the long wait.

No problem!

Scanners don't have that great of a "depth of field" so scanning 3D objects is always hit and miss, not to mention the risk of scratching the glass.

No, i wanted to scan the schematics, and take a picture of the current system.