Atmega Fusebit Doctor (HVPP + HVSP) - fix fusebits

And how should the LED lighting process look like? how many times which

The diodes are to show only the repair result, the flashing is a side effect and you should not be influenced by it. If you want to know something more, you need to connect to the uart and receive the repair log, but this is a 100% problem on the side of assembly errors.

In my spare time, I'll start checking it out . Now it's a matter of deliberately blocking one atmega.

I built the above-mentioned structure.
2h board, firmware 2.11

while reading repaired micro controllers it stops:
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Welcome
AVR Atmega fusebit doctor (HVPP + HVSP) version 2.11
http://diy.elektroda.eu/atmega-fusebit-doctor-hvpp
Usage in commercial / profit purposes not allowed

MANUAL HVPP MODE

Init programming ... DONE
Read signature ... 1E 93 07
Searching chip ... Atmega8 / A
-------------------------------------------------- -------------------
Welcome
AVR Atmega fusebit doctor (HVPP + HVSP) version 2.11
http://diy.elektroda.eu/atmega-fusebit-doctor-hvpp
Usage in commercial / profit purposes not allowed

MANUAL HVPP MODE

Init programming ... DONE
Read signature ... FF FF FF - FAIL!
Trying T2313 pinout..1E 91 0A
Searching chip ... Attiny2313 / A
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What is this fault?
The green diode lights up, the system reset pin is 12V. on the + 5V line there is 5V. The voltage drops only for the time the START button is pressed.

The three other Atmega 8s are recognized as FF FF FF, cannot be deleted.

New atmega from the store, in auto mode, the green diode lights up, then it goes out and blinks red. Does not respond to "ERASE"

New atmega - inserted as a test - after reading the red diode in the car flashes.

Welcome
AVR Atmega fusebit doctor (HVPP + HVSP) version 2.11
http://diy.elektroda.eu/atmega-fusebit-doctor-hvpp
Usage in commercial / profit purposes not allowed

AUTOMATIC HVPP MODE

Init programming ... DONE
Read signature ... 1E 93 07
Searching chip ... Atmega8 / A
Chip erase ... DISALLOWED DONE

fsem wrote:

KStanek ???????? ??? ???? ???????: http://programmator-ua.ucoz.ru/publ/atmega_fu...nt_plat_pod_proshivki_v_2_11_i_v_2_12/1-1-0-9, ??????, ???????? ??? ????? ???????? ????????, 2.11 ? 2.12.?? ??????? ???? ???????????.

I would like to comment on that. Whatever version 2.12 doesn't exist, what's in the link above is some rude modification to firmware 2.11. I have no idea what was changed there, from what I read from some rudimentary posts on another forum, something was corrected there, but I don't know what.

Why rude? Because the author, source and license were completely removed, and the website address was brazenly changed in the terminal log and the entry about commercial applications was removed. I don't mind patching someone else's code or layout. But folks, just a little respect for someone else's work and everyone will be happy.

Either I don't know how it works or something is wrong with my system.
In manual mode:
-------------------------------------------------- -------------------
Welcome
AVR Atmega fusebit doctor (HVPP + HVSP) version 2.11
http://diy.elektroda.eu/atmega-fusebit-doctor-hvpp
Usage in commercial / profit purposes not allowed

MANUAL HVPP MODE

Init programming ... DONE
Read signature ... 1E 93 07
Searching chip ... Atmega8 / A
-------------------------------------------------- -------------------

It stands on - when I remove the UART, the same thing probably happens - only that - the green LED will light up, after a while it will go out and the red LED will flash.
I am asking for help because I do not understand how it should work, so far it is one Atmega8 that has reached the "FF FF FF" signature.

-------------------------------------------------- -------------------
Welcome
AVR Atmega fusebit doctor (HVPP + HVSP) version 2.11
http://diy.elektroda.eu/atmega-fusebit-doctor-hvpp
Usage in commercial / profit purposes not allowed

AUTOMATIC HVPP MODE

Init programming ... DONE
Read signature ... 1E 93 07
Searching chip ... Atmega8 / A
Chip erase ... DISALLOWED DONE
-------------------------------------------------- -------------------

-------------------------------------------------- -------------------
Welcome
AVR Atmega fusebit doctor (HVPP + HVSP) version 2.11
http://diy.elektroda.eu/atmega-fusebit-doctor-hvpp
Usage in commercial / profit purposes not allowed

AUTOMATIC HVPP MODE

Init programming ... DONE
Read signature ... 1E 93 07
Searching chip ... Atmega8 / A
Chip erase ... DONE DONE
-------------------------------------------------- -------------------

Added after 32 [minutes]:

It is one and the same Atmega - having completely lost communication with USBasp

Am I doing something wrong or is it complete and correct operation of this system ?? But why uP stop working with ISP? Performs the stabilized impulse power supply at the output is 11.8V. Can you please explain what and how ???

Hello electronics lovers, thanks to the author for a great project, thanks to a wonderful project like ATmega Fusebit Doctor, I unlocked three Atmega8 procks.
I made the board some time ago, then modified it to the 2H version and programmed the ATmega 328 and it works.

Colleagues - as I have problems with my set. Could someone make the tile for me? My printer can't handle chalk paper.

I have an HP of 6 L and for the plates it is very good, I print on chalk paper and on the covers of colored letters. I have set the print to the maximum resolution. What you mean by saying that it cannot handle chalk paper and does not want to print unlikely.

He takes it on a roller and where it is to be - the fused toner begins to crumple it and separate it. If someone has one copy of the board in the new version - I would be grateful. Of course, further agreement at PW. Because here, rather, not a conversation about printers.

You can print it out at a service point. I have a laser engraving service. The guy said he could try. If you don't want to call a tile, you can also try it this way. I also saw ready-made fusbitdoctor plates on ebay.