PIC12F1572 is not working

Alberto Maccioni — Sat, 18 Apr 2026 18:59:26 -0000

The device is not entering program mode; it does not respond at all.
But there's nothing wrong in the code.
Did you try on the main board without LV?
Is it a classic unsoldered DIP8 device?
Is it brand new?
Contact issues?

PIC12F1572 is not working

Roland Anzenberger — Thu, 16 Apr 2026 09:35:20 -0000

here are the Fies, thank you for your quick response

PIC12F1572 is not working

Alberto Maccioni — Wed, 15 Apr 2026 20:59:30 -0000

12F1572 is still untested. More than firmware it is the programming algorithm, which resides in the PC app.
Can you provide the read log?

PIC12F1572 is not working

Roland Anzenberger — Wed, 15 Apr 2026 18:07:48 -0000

I have tried to programm a PIC12F1572 with the Programmer (LV-Board inserted) and Opgui. Device ID and everything else is read as zero, the PIC12F1822 works fine in the same position. So it's not a matter of the Hardware, its more a matter of the Firmware. I use the latest Firmware for PIC18F2550 (hex fie) from the Homepage . Have somebody programmed a PIC12F1572 succesfull?

quit from opgui

John Devires — Tue, 17 Jun 2025 11:52:38 -0000

Also just found the latest release 0.12.4, which works 100% on Mint.
Thank you Alberto.

quit from opgui

John Devires — Tue, 17 Jun 2025 11:06:48 -0000

I had the same problem on Linux Mint 20.3.
Thank you for the solution, works 100% ;)

Device confirmed

John Devires — Mon, 16 Jun 2025 18:21:17 -0000

Just another confirm.
Tested 16F1827 , all works 100%

Thank you.

New release 0.12.4

Alberto Maccioni — Wed, 21 May 2025 19:41:15 -0000

Version 0.12.4 of OP/OPGUI was released today.
Changes:
added 18F04-05-06-14-15-16Q20;
fixed config write on 18FXXQ10;
fixed erase and write on 16F131XX,16F152XX,16F171XX,16F18XXX

[16F18xxx & 152xx] OPGUI cannot write configuration registers1-5

Anonymous — Thu, 15 May 2025 03:15:43 -0000

Ah, that's great. Basic support is fine and blink works. :-) I'm happy. Thank you for your effort and work - the programmer will be very useful.

Dan Skareda

[16F18xxx & 152xx] OPGUI cannot write configuration registers1-5

Alberto Maccioni — Wed, 14 May 2025 21:02:58 -0000

For reasons I really cannot understand, the progression of config# and address is interrupted after config8 (0x300007); next is config10 (0x300008), 11 and 12. Another jump and you get config14 (0x300018) and finally config9 (0x300019).
This is only on Q20 devices.
Clearly I did not implement a custom counter, and probably never will.
By the way, SAFSZ is not written unless also SAFLOCK is.
So in your case everything seems fine and exactly as expected.

Recent posts to Discussion

PIC12F1572 is not working

PIC12F1572 is not working

PIC12F1572 is not working

PIC12F1572 is not working

quit from opgui

quit from opgui

Device confirmed

New release 0.12.4

[16F18xxx & 152xx] OPGUI cannot write configuration registers1-5

[16F18xxx & 152xx] OPGUI cannot write configuration registers1-5