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benaknoun
Spain
133 Posts |
 Posted - 01/24/2012 : 16:53:56
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Hi
I have the GQ-4X and also the Wellon VP990.
I have desoldered a chip, 93S46 and placed on the adapter that came with VP990, this one:
h**p://programatory.com/index.php?p22,adapter-so8-zif-so-8
I have read it on both programmers and the data buffer is slightly different, example:
On VP990, on address 00000010H i have 00 00 6C A4 96 45 68 38
On GQ-4X, on address 00000010H i have 00 00 A4 6C 45 96 38 68
Is this normal ?
thanks in advance |
Edited by - benaknoun on 01/24/2012 16:56:05
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| Reply #1
Bad_Ad84
210 Posts |
Posted - 01/25/2012 : 02:46:35
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| Just looks byte swapped. |
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| Reply #2
benaknoun
Spain
133 Posts |
Posted - 01/26/2012 : 06:17:45
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Someone told me this:
M93S46 have 16 bit mode to read/write.
VP-990 display 16 bit data by low 8 bit--- high 8 bit
maybe GQ-4X display data by high 8 bit ---low 8 bit |
Edited by - benaknoun on 01/26/2012 06:53:45 |
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| Reply #3
ZLM
2945 Posts |
Posted - 01/26/2012 : 10:00:04
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Yes. The programmer displays 16bit data in two ways.
If you do only instant copy a chip on same programmer, then you do not need to wory about it.
If you do exchange the data file between those two programmer, you need to make sure the data in a correct order. If not, you have to click on A/B button to swap the order. |
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| Reply #4
benaknoun
Spain
133 Posts |
Posted - 01/26/2012 : 15:18:46
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OK thank you very much
i will do that.. |
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| Reply #5
benaknoun
Spain
133 Posts |
Posted - 01/30/2012 : 13:13:41
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Hi
Surprisingly, i find that GQ-4X is easier to use than the VP990, the VP990 cost me almost 500 Euros and sometimes it can't read simple chips, for example:
I am trying to read a ST 24C04W6 SOIC8 chip placed correctly on the correct adapter, all i get is FFFFFFFFFFFFFFFFFFFFFF
I have placed the chip exactly the same way on my other programmer GQ-4X and it reads OK
I have tried with device selection of M24C04, M24C04-R, M24C04-W,
ST24C04, ST24C04-R
And it is the same problem, only get FFFFFFFFFFFFFFFFFFFF
What could be the problem please?
Can you help? thanks |
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| Reply #6
benaknoun
Spain
133 Posts |
Posted - 02/03/2012 : 13:47:29
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Hi
This is sorted, i needed to do a software update
Thanks |
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Topic |
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GQ-4X vs VP990
