MCUmall EPROM BIOS Chip Burner Forum
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 Cant erase AM29F032		  Forum Locked
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topgeargames

Canada
27 Posts
Posted - 11/26/2011 :  15:15:45  Show Profile
Hey, i cant seem to erase these chips. i bought 12 of them off of ebay and I cant erase any of them! They always get to "Erase by timeout". And then when i check it hasnt erased anything...Chip IDs fine, can read the chips.

I have successfully written and erased these chips before...what else could i be missing? I have checked "temporary unprotect" and still no luck.

Is there any other settings i can check or things i can do?? Im at my wits end here!
Reply #1

ZLM

2945 Posts
Posted - 11/28/2011 :  23:20:54  Show Profile
Did you use latest software? and try different speed?
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Reply #2

MyLastWord

Canada
5 Posts
Posted - 11/29/2011 :  08:01:39  Show Profile
Topgear!
Expect standard answers to questions by questioning! Once you answered these questions, don't expect anything more.
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Reply #3

topgeargames

Canada
27 Posts
Posted - 11/29/2011 :  11:32:05  Show Profile
Yes, i have tried other speeds, same result. It shows like its erasing but the chip is still full.

Is there a special "Locking" method that these chips might be using that the Temporary Unprotect doesnt do? Again, these chips are AM29f032B chips.


@MyLastWord:

Your post didnt really make sense. But instead of just posting something like that, it would be more helpful to actual attempt to help with the question asked.
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Reply #4

topgeargames

Canada
27 Posts
Posted - 11/30/2011 :  13:06:57  Show Profile
Has NOBODY seen this before?? I find it hard to believe that of all the people in this forum im the ONLY one who has ever had an issue programming or erasing TSOP chips...
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Reply #5

topgeargames

Canada
27 Posts
Posted - 11/30/2011 :  21:45:42  Show Profile
THanks! Everything seems to be good now.

Thanks again EzoSat!
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Reply #6

pierrotb

2 Posts
Posted - 02/21/2014 :  00:48:06  Show Profile
Hi,

I recently had to face the same issue with AM29F032 and MBM29F033 chips.

The solution I accidentally found is to move the software window uning the mouse during the erasing for maybe 10s.

It causes a bug that freezes the software and consequently suspends the 40s timer.

I believe that 40s is too short for some large and slow chips to ensure complete erasing.

It would be judicious to update the software in order to change the value of the timeout to 1 minute for instance.
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Reply #7

Flordelis

USA
1 Posts
Posted - 01/22/2023 :  04:29:35  Show Profile
quote:
Originally posted by pierrotb

Hi,

I recently had to face the same issue with AM29F032 and MBM29F033 chips.

The solution I accidentally found is to move the software window uning the mouse during the erasing for maybe 10s.

It causes a bug that freezes the software and consequently suspends the 40s timer.

I believe that 40s is too short for some large and slow chips to ensure complete erasing.

It would be judicious to update the software in order to change the value of the timeout to 1 minute for instance.


This old issue of old times systems reminds me the days of my childhood.
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