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Lucky1
Canada
4 Posts |
 Posted - 03/31/2020 : 09:46:41
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Hi
I am able to write the EProm but the data is not the same as the uploaded .bin file.
On the first MBM2716 eprom, All was good exept the ASCII "!" were all written as "1"
My other issue was with a TMS2532JL eprom, everything was totally different from the loaded bin file.
File and device offset are always @ 00000000 and 000000 |
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| Reply #1
anniel
2572 Posts |
Posted - 03/31/2020 : 09:52:32
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quote:
Originally posted by Lucky1
Hi
I am able to write the EProm but the data is not the same as the uploaded .bin file.
On the first MBM2716 eprom, All was good exept the ASCII "!" were all written as "1"
My other issue was with a TMS2532JL eprom, everything was totally different from the loaded bin file.
File and device offset are always @ 00000000 and 000000
What is the power supply you are using? |
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| Reply #2
Lucky1
Canada
4 Posts |
Posted - 03/31/2020 : 10:31:03
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GQ-4x4
Dual powered:
USB 3.0
and
9V DC, (Positive polarity inside), it outputs 12.75V DC under no load. |
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| Reply #3
anniel
2572 Posts |
Posted - 03/31/2020 : 10:59:07
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quote:
Originally posted by Lucky1
GQ-4x4
Dual powered:
USB 3.0
and
9V DC, (Positive polarity inside), it outputs 12.75V DC under no load.
That is a badly regulated supply! Did you try lower speed settings? |
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| Reply #4
Lucky1
Canada
4 Posts |
Posted - 03/31/2020 : 11:14:37
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Voltage diagnostic passed all the tests w/wo power supply.
Yeah, tried speed -2 and 0 and 2, which are 5, 3 and 1.
I was able to program another 2532 earlier today without the power supply.
I don't get why it still 100% writes but with the wrong data. It "creates" its own data ?!?
Thank for your help btw. |
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| Reply #5
anniel
2572 Posts |
Posted - 03/31/2020 : 12:54:22
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quote:
Originally posted by Lucky1
Voltage diagnostic passed all the tests w/wo power supply.
Yeah, tried speed -2 and 0 and 2, which are 5, 3 and 1.
I was able to program another 2532 earlier today without the power supply.
I don't get why it still 100% writes but with the wrong data. It "creates" its own data ?!?
Thank for your help btw.
You can try to play with the WVCC it sometimes help old chips to accept the good values. |
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| Reply #6
Lucky1
Canada
4 Posts |
Posted - 04/03/2020 : 06:57:02
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| Filing the pin legs really good did the job! |
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| Reply #7
anniel
2572 Posts |
Posted - 04/03/2020 : 09:05:07
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quote:
Originally posted by Lucky1
Filing the pin legs really good did the job!
Dirty contacts is a common problem for some chips. |
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Topic |
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Writing wrong data
