| T O P I C R E V I E W |
| MannyTC |
Posted - 01/22/2018 : 21:59:33
Am new to the GQ-4x4 and am having difficulty writing to a ST M2716. The writing seems to fail almost immediately. I am using an external power supply of 9v rated at 850mA. The eprom says 21V Fast on it but looking at the specsheet of M2716-1F1 from ST it says it is 25V. I first tried at 21V and then at 25V with the same results. I see lots of posts with 2716 issues but it seems others are able to write fine.
Is there anything you all suggest I check? I suppose it could be a bad eprom too since I received it pre-installed in a project kit I purchased that was programmed by the seller and it didn't work out of the box. When I read the eprom in with the GQ-4x4 it was almost all FF so either he didn't write it successfully or something happened during shipping. It does erase successfully when I put in eraser and then run a blank check. |
| 4 L A T E S T R E P L I E S (Newest First) |
| anniel |
Posted - 02/04/2018 : 04:49:52
quote:
Originally posted by MannyTC
Got some new eproms and was able to write successfully. I guess I just had a bad one.
It happens. |
| MannyTC |
Posted - 02/03/2018 : 22:46:02
Got some new eproms and was able to write successfully. I guess I just had a bad one. |
| MannyTC |
Posted - 01/23/2018 : 08:50:49
Sorry, forgot to mention I also already tried lower speed |
| anniel |
Posted - 01/23/2018 : 06:26:19
quote:
Originally posted by MannyTC
Am new to the GQ-4x4 and am having difficulty writing to a ST M2716. The writing seems to fail almost immediately. I am using an external power supply of 9v rated at 850mA. The eprom says 21V Fast on it but looking at the specsheet of M2716-1F1 from ST it says it is 25V. I first tried at 21V and then at 25V with the same results. I see lots of posts with 2716 issues but it seems others are able to write fine.
Is there anything you all suggest I check? I suppose it could be a bad eprom too since I received it pre-installed in a project kit I purchased that was programmed by the seller and it didn't work out of the box. When I read the eprom in with the GQ-4x4 it was almost all FF so either he didn't write it successfully or something happened during shipping. It does erase successfully when I put in eraser and then run a blank check.
Try a lower speed. |
