| Author |
 Topic  |
|
|
microbored
3 Posts |
 Posted - 12/08/2018 : 12:55:48
|
Hi –
I am programming a TMS2564JL with an external power adapter on a GQ-4x4. It seems to stop writing half way through. Each time I try only 40% seems to be written. Below details my settings, the verify error, the .BIN file and what is read from the chip after the burn.
Device definition: Name="TMS2564JL",ID="XXXX",Class="2564(25V Vpp)",WVCC="5.5V",WVPP="25V",Category="EPROM",MFG="TI",Speed="3";
Any ideas what I might be doing wrong?
Thanks!
243087 bytes![]() |
Edited by - microbored on 12/08/2018 13:24:33
|
|
| Reply #1
anniel
2572 Posts |
Posted - 12/08/2018 : 13:29:49
|
quote:
Originally posted by microbored
Hi –
I am programming a TMS2564JL with an external power adapter on a GQ-4x4. It seems to stop writing half way through. Each time I try only 40% seems to be written. Below details my settings, the verify error, the .BIN file and what is read from the chip after the burn.
Device definition: Name="TMS2564JL",ID="XXXX",Class="2564(25V Vpp)",WVCC="5.5V",WVPP="25V",Category="EPROM",MFG="TI",Speed="3";
Any ideas what I might be doing wrong?
Thanks!
243087 bytes![]()
Check pin 2 for damages. |
 |
|
| Reply #2
microbored
3 Posts |
Posted - 12/08/2018 : 14:13:01
|
Thanks. Suggestions on how to check pin 2?
I scoped pin 2 and 27. Pin 2 goes high but 27 never does. Also, when I read in the original chip the second half is also blank. Datasheet: https://bit.ly/2E6JKsz
Also, the Vpp and goes to 22v, is that normal?
Image Insert:
736321 bytes |
|
|
| Reply #3
microbored
3 Posts |
Posted - 12/12/2018 : 09:26:33
|
Q1) To achieve 25v should I hook a bench power up in series to supply an extra 3v?
Q2) How do I check pin 2? I don't think pin 2 should be used according to the datasheet.
Image Insert:
278329 bytes
thanks,
|
|
|
| |
Topic |
|
|
|
TMS2564JL Only Writing 40% of .BIN file
