| T O P I C R E V I E W |
| AG42 |
Posted - 10/09/2009 : 12:58:51
Hello everybody. I have the new GQ-4X programmer and I trying to write to 93C46EN. I use device 93C46 A and B. The programmer seems to read and even erase no problem but when I try to write it is not writing the file like I have it. For example I try to write 1390 in hex but I get 00 00. The weird thing is not in all positions, some write OK. I have the chip out of the board and I verified that it is not rotated.
The chip was made by National Semiconductor (Fairchild now).
Any ideas what am I doing wrong?
Thanks. |
| 13 L A T E S T R E P L I E S (Newest First) |
| osvaldo |
Posted - 11/05/2009 : 19:30:43
I am at your disposal to help you and give you prune my knowledge to you and the entire forum and I worked allege q
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| AG42 |
Posted - 11/05/2009 : 10:04:26
I finally got this one figured out. The problem was with the chips I pulled from the board. I got new chips but was angry and somehow I could not program them. The next day I started from scratch and was able to program the new chips and additionally I was able to programs some used chips (the same as the pull outs) but the chip in question could not be programmed. So it was the chip not the programmer. I apologize for the whole thing.
AG42. |
| AG42 |
Posted - 10/26/2009 : 13:13:54
quote:
Originally posted by ZLM
Did you try to use slower speed?
If does not work, can you give me the exact part number or send me a testing chip?
I can send it back after testing.
Thanks ZLM,
I'll contact you through support.
AG. |
| ZLM |
Posted - 10/24/2009 : 23:30:23
Did you try to use slower speed?
If does not work, can you give me the exact part number or send me a testing chip?
I can send it back after testing. |
| AG42 |
Posted - 10/24/2009 : 14:37:04
Today I got 10 brand new 93C46B chips by Microchip. Unfortunately I was not able to program even new chip. Out of desperation I pulled out my old Enhanced Willem and it programed the chip no problem. So it looks like my new programmer is defective  . |
| AG42 |
Posted - 10/11/2009 : 12:01:44
I successfully read, erased and written chip marked 93C56EN (off board). At this point I think I have defective chip. I just realized I didn't short the rite oscillator on the board so this maybe my problem. I'll try to get new 93C46 and see how it goes and post results.
AG. |
| ZLM |
Posted - 10/11/2009 : 07:12:28
If it still does not work, please send a chip to support@mcumall.com fortesting. The chip will be sent back to you after test. |
| osvaldo |
Posted - 10/10/2009 : 05:33:32
There is some problem reading the pins make good contact memory
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| AG42 |
Posted - 10/09/2009 : 18:58:45
Hi Osvaldo and thanks for pics. I got those too from alldatasheet.com.
I attach a pic so you can see the problem.
AG.
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| osvaldo |
Posted - 10/09/2009 : 18:34:22
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| osvaldo |
Posted - 10/09/2009 : 18:30:22
I command the 93c46en IMFORMACION and other
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| AG42 |
Posted - 10/09/2009 : 14:29:18
I did use slower speed -2 but it didn't fix the problem.
AG. |
| ZLM |
Posted - 10/09/2009 : 13:42:19
Try to use slower speed.
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