eprom programmer?

[Jeff Greer]

I would like to purchase a simple eprom programmer to program RC2014 related chips.

Can someone suggest a good option?

Thank you,

v/r

Jeff

[Jerry Chapman]

This is what I bought.  I have only programmed the rom on the 512K board so far.

https://www.ebay.com/itm/XGecu-TL866II-Plus-Programmer-for-SPI-Flash-NAND-EEPROM-MCU-PIC-AVR-ship-from-US/323729666027?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649

Jerry

[Jeff Greer]

Thank you, Jerry.

That one looks pretty good. The ZIF would make it easy to use.

v/r

Jeff

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[Jerry Chapman]

I'm building Dr. Baker's Z80 SBC and I needed something that would program ATF16V8 and the rom 39SF040.  The rom burned just fine.  I'm going to try the ATF16V8 later today.  Shipping was really fast about 5 working days to west coast.  I didn't need any other accessories but if I do you can always buy them later on Ebay.  I bought from that link cause they were an authorized seller, probably doesn't matter.

Jerry

[Jeff Greer]

Good deal. Thanks for the additional info.

Jeff

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[Sean Lynch]

I bought the same model off of Amazon, with some accessories for other form factors. People complain about their software, but there's also an open source crossplatform CLI tool. It supports Linux which is mandatory for me. https://gitlab.com/DavidGriffith/minipro/

On Mon, Oct 26, 2020, at 14:42, Jeff Greer wrote:
> Good deal. Thanks for the additional info.
>
> Jeff
>
> On Mon, Oct 26, 2020 at 4:06 PM Jerry Chapman <rapto...@msn.com> wrote:
> > I'm building Dr. Baker's Z80 SBC and I needed something that would program ATF16V8 and the rom 39SF040. The rom burned just fine. I'm going to try the ATF16V8 later today. Shipping was really fast about 5 working days to west coast. I didn't need any other accessories but if I do you can always buy them later on Ebay. I bought from that link cause they were an authorized seller, probably doesn't matter.
> >
> > Jerry
> >
> > On Monday, October 26, 2020 at 2:59:23 PM UTC-6 jgre...@gmail.com wrote:
> >> Thank you, Jerry.
> >>
> >> That one looks pretty good. The ZIF would make it easy to use.
> >>
> >> v/r
> >> Jeff
> >>
> >> On Mon, Oct 26, 2020 at 3:56 PM Jerry Chapman <rapto...@msn.com> wrote:
> >>> This is what I bought. I have only programmed the rom on the 512K board so far.
> >>>
> >>> https://www.ebay.com/itm/XGecu-TL866II-Plus-Programmer-for-SPI-Flash-NAND-EEPROM-MCU-PIC-AVR-ship-from-US/323729666027?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649
> >>>
> >>> Jerry
> >>>
> >>> On Monday, October 26, 2020 at 2:49:53 PM UTC-6 jgre...@gmail.com wrote:
> >>>> I would like to purchase a simple eprom programmer to program RC2014 related chips.
> >>>>
> >>>> Can someone suggest a good option?
> >>>>
> >>>> Thank you,
> >>>> v/r
> >>>> Jeff
>
> >>> --
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>
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[Jeff Greer]

Sounds even better. I primarily use a RPi 4 for my desktop though I have use Win 10 for a couple of apps that has no alternative.

I will verify pricing on both Amazon and Ebay.

Thanks, Jeff 

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[n.hae...@gmail.com]

Funny, eprom programmers seem to be the first thing everybody gets once they start expanding the system and so did I. I can recommend the "Batronix Balino II" which also comes with a neat programming software for all three OSes (Linux, macOS, Windows).

[Jeff Greer]

The Batronix looks like the superior unit but it would be $200 including shipping from Europe to the US.

Jeff

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[Bill Shen]

On Tuesday, October 27, 2020 at 4:02:02 AM UTC-6 n.hae....com wrote:

Funny, eprom programmers seem to be the first thing everybody gets once they start expanding the system and so did I.

That was the motivation to build a retro system that can also serves as an EPROM programmer.  Actually, I've built two.  It is an interesting problem; how to build a computer that can program its own bootstrap nonvolatile memory.  The first attempt was a rc2014 compatible 512K RAM/EPROM board that can boot from a tiny ROM located in CPLD to load file into RAM to program the EPROM, but that design used CPLD which requires a programmer of its own.

The second attempts is using a retrocomputer that has a serial bootstrap feature, e.g., Z280.  Z280 is a 16-bit processor but can be configured in 8-bit, Z80-compatible mode.  It has an unusual serial bootstrap mode that assumes RAM is located in 0x0 and use its internal UART to serially load 256 bytes of code into the RAM and starts execution from 0.  Z280 has 16 meg memory space, so I mapped a 512k EPROM in 0x800000 and 512k RAM in 0 while in serial bootstrap mode; once the EPROM is programmed, I switch the memory map so EPROM is in 0x0 RAM in 0x800000 then bootup normally with EPROM.  This approach requires no programmer of any kind.  It is designed with TTL glue logic and all through-hole technology.   It is currently under development,  https://www.retrobrewcomputers.org/doku.php?id=builderpages:plasmo:zz80mb:zz80mbr2

  Bill

[mik...@houseofmyrrh.org]

Agreed Jeff, a bit rich for my blood.

159 Euro equals 187.99 United States Dollar (Without Shipping and
Customs Delays)

Mike Sr

[n.hae...@gmail.com]

Ok, I didn't know you're located in the US. Over here (germany) you can get the Batronix at a discont for around 139€ if you know where to look. I bought it because I thought it may also be useful for burning ROMs for my old Commodore systems etc.

[Mike, K8LH]

I too need something to program 28C256 EEPROMs as well as the bargain priced SST39SF Parallel Flash ROMs but the commercial programmers are a bit beyond my hobby budget so I decided to design my own simple Flash Programmer Arduino 'shield'.  Just sent the PCB order in yesterday.

Stay safe guys.  Cheerful regards, Mike, K8LH (Michigan, USA)

[Mike, K8LH]

I also thought about taking advantage of these wonderful PCB prices to re-design my old EPROM programmer to use an Arduino Uno or Nano.  Everyone's got a $4 Arduino clone, right (grin)?  I only ever programmed the 12.5v CMOS 27C64, 27C128, and 27C256 EPROMs with it and then I added jumpers to allow programming 5v 28C256 EEPROMs.

[Jeff Greer]

Your shield looks very nice. Another project....

Thank you for sharing,

73, de Jeff WD4ET

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[karlab]

Brilliant design. 

Karl

[Mike, K8LH]

Anyone ever used one of these SMPS Boost regulators for the VPP supply on a DIY EPROM programmer?

On Wednesday, October 28, 2020 at 3:04:46 PM UTC-4 karlab wrote:

Brilliant design. 

Karl

[Wayne Hortensius]

On Mon, 2 Nov 2020 09:31:48 -0800 (PST)
"Mike, K8LH" <k8...@arrl.net> wrote:

> Anyone ever used one of these SMPS Boost regulators for the VPP
> supply on a DIY EPROM programmer?

Sure, I imagine it's pretty common these days. I have a couple in
place; one to supply 25V for an EPROM programmer on an old Z80 trainer
board and another in a homebrew GAL programmer to supply 10-14V.

Wayne

[Mike, K8LH]

The Flash Programmer Shield PCBs turned out pretty nice and now I'm workin' on software...  I can read, write, erase, lock, and unlock AT28C256 chips and I can also read, write, and erase SST39SF series Flash chips.  Just need to finish XMODEM and HEX upload and download procedures.  

Since most compilers and assemblers are likely to produce code for a 64K address space I was wondering if I should implement a 'bank' command to select a specific 64K bank target for operations on the Flash chips?

Stay safe.  Happy Holidays.  Cheerful regards, Mike

[Bill Shen]

You'll likely need to program the ROMWBW image which is 512K.  I don't know how much memory your programmer has.  If it is more than 512K, great, you can xmodem the entire 512K image into memory and program SST39SF040 at your leisure.  If not, you need to program the flash while the data is coming in.  If your programmer using banking scheme, then you'll need to bank through the 512K memory space as you program.
  Bill