EPROM Programmer: Programming TMS2532 Chips w/ 25v

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Discussion Overview

The discussion centers around programming TMS2532 chips that require a 25V supply for programming. Participants explore different programmer options, the necessity of UV exposure prior to programming, and the challenges faced with existing equipment.

Discussion Character

  • Technical explanation, Debate/contested, Experimental/applied

Main Points Raised

  • One participant seeks recommendations for a USB-type programmer capable of providing 25V for TMS2532 chips, noting that their current GQ-4x4 programmer is insufficient.
  • Another participant emphasizes the importance of exposing the chips to high-intensity UV light before programming, sharing a personal method using an improvised arc lamp.
  • A third participant mentions a specific programmer, the TL866-3G, which can handle multiple devices and provide the necessary 25V, although they express a lack of interest in reviewing the datasheet.
  • One participant shares their intermittent success with programming the TMS2532 chips and notes that their current programmer does not consistently reach the required 25V, as observed with an oscilloscope.
  • A participant inquires about the practice of performing "Blank" checks before programming, suggesting it as a standard procedure.
  • The original poster reiterates their request for a reliable programmer that can consistently provide the necessary 25V, indicating dissatisfaction with their current equipment.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on a specific programmer solution, and multiple competing views regarding programming methods and equipment remain present.

Contextual Notes

Some participants mention the need for UV exposure and the variability in programming success, indicating potential limitations in the equipment or methods used. The discussion does not resolve the effectiveness of the suggested programmers or the necessity of specific procedures.

Who May Find This Useful

Individuals interested in programming TMS2532 chips, those exploring UV exposure methods for chip programming, and users seeking reliable programming equipment for legacy chips may find this discussion relevant.

imsmooth
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I want to program some TMS2532 chips that need 25v in order to program. The GQ-4x4 does not seem to be doing it. Any suggestions for a USB-type programmer for this task? I've seen the EMP-20, but it uses a parallel port that I am not thrilled about.
 
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Before this device is programmed, it must be exposed to a high-intensity uv light (2537 Angstroms).
Are you doing that?
If not, from personal experience I have discovered that an arc lamp improvised from a 40VDC supply and a #2 pencil will make quick work of it.
Most device programmers (such as your GQ-4x4) are able to scan the target device and report whether it is fully erased.
 
Yes
I’ve successfully programmed chips many times and I have a UV eraser.

My success with the 2532 is intermittent and when I put in oscilloscope on the pins I can see my programmer is not hitting the 25 V needed.
 
I haven't used that kind of programmer for a while. Even if I recalled model numbers, they likely wouldn't be available anymore.
Do you do "Blank" checks before programming?
 
Yes. Again, I am just asking if anyone knows of a good programmer that hits 25v reliably because the one I have doesn't.
 

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