| Electronics > Repair |
| CH341A Serial Memory Programmer Power Supply Fix |
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| pupa:
Ok. Herewith my mod to recover from disaster. |
| pupa:
Seen from top. Very versatile unit. Can program eeProm's as well as AVR's when using the right program. Have quite a collection of programs. The drivers is a bit of an issue as not all the apps works through the same drivers, damn annoying but not to much of a hassle if you know which driver works best with each app. Hope you come right. |
| pupa:
--- Quote from: davidm71 on November 11, 2017, 06:25:01 pm ---Ok. So then why did they put on the market a defective bios programmer?! --- End quote --- Did you see the price? Many people now owns and support the unit via research and new information and apps to write to EEProms and AVR's. There are a few projects already on the net with improved circuit and PCB designs for download. Soon it will be the de'facto standard for hobbyists. EEProms is well supported through Flashrom on Linux and on Windows there is a GUI app on the older release version. AVR's are supported through a few programming apps for the hobbyist within limited support for the latest chips but then again there is MPlab for that in the meanwhile but at a cost in comparison. Now I'm just waiting for AVRdude to possibly revive, get updated and also support this programmer. |
| pupa:
Great. I was also lucky but as you can see even in this thread, there are many people crying. Best is to be safe by studying the specs and datasheet on the BiosChip number in question mounted on the target board. Could be a expensive lesson otherwise. The BiosMod forum is a good resource for information to read about that. |
| theIC:
--- Quote from: pupa on May 28, 2020, 12:19:40 am ---Ok. Herewith my mod to recover from disaster. --- End quote --- I created an account just to thank you all for the wonderful mod. From Chuck Nemeth's blog which lead me here to Pupa's fix. I attempted to do the mod, and did not have the dexterity as some of you. I attempted to use some leftover ethernet cable strands and between the insulation burning away and also breaking pin 29 from the IC, I got the idea from pupa to grind away the area by pin 29 to expose some metal to resolder the wire. Anyway, it all worked. |
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