TPI Programming using HVPROG2 Programmer

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Hi.


I have prototyped the HVPROG introduced in https://mewpro.cc/en/product/hvp...


It supports all AVR programming protocols except UPDI.


I have tested ISP, HVPP, HVSP and they work perfectly.


The problem in TPI programming. Any programming command is executed successfully, but the problem is that each time I need to reset the microcontroller manually for the firmware to run.


I suspected the programmer's firmware not resetting the ATtiny20 (target microcontroller).


The connection I have applied is as follows:


I need help because I have an interview next month regarding programming protocols. Thanks.

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dev_ahmed wrote:
I need help because I have an interview next month regarding programming protocols.

Can't help with the unknown (by me) programmer, but normally one only uses HV programming when one screws up and sets the reset disable fuse, one usually only does that once, and it's cheaper to toss the micro and replace it, then to build (use) a HV programmer to recover it.   Tell them that at the interview! 

Good luck with the job hunt.

 

Jim

edit: Sorry forgot to say Welcome to AVRFreaks!

 

FF = PI > S.E.T

 

Last Edited: Thu. Aug 26, 2021 - 03:43 PM