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Re: [avrdude-dev] [bug #55734] USBtiny programming of ATmega328p broken
From: |
Austin Roach |
Subject: |
Re: [avrdude-dev] [bug #55734] USBtiny programming of ATmega328p broken by Patch #9278 |
Date: |
Sun, 17 Feb 2019 21:03:54 -0500 |
Correction: the relevant patch number is Patch #9728. The referenced
URL is correct, but I transposed two digits in the description.
Cheers,
Austin
On Sun, Feb 17, 2019 at 8:52 PM Austin Roach <address@hidden> wrote:
>
> URL:
> <https://savannah.nongnu.org/bugs/?55734>
>
> Summary: USBtiny programming of ATmega328p broken by Patch
> #9278
> Project: AVR Downloader/UploaDEr
> Submitted by: ahroach
> Submitted on: Mon 18 Feb 2019 01:52:35 AM UTC
> Category: None
> Severity: 3 - Normal
> Priority: 5 - Normal
> Item Group: None
> Status: None
> Privacy: Public
> Assigned to: None
> Originator Name: Austin Roach
> Originator Email:
> Open/Closed: Open
> Release: SVN snapshot
> Discussion Lock: Any
> Programmer hardware: usbtiny
> Device type: ATmega328p
>
> _______________________________________________________
>
> Details:
>
> Programming an ATmega328p with a usbtiny-compatible programmer (Pocket AVR)
> was broken for me by Patch #9278.[1]
>
> The logic in Patch #9278 is flawed. usbtiny_program_enable() (which is
> ultimately returning the value from usbtiny_cmd()) returns 1 on *success*.
> With the patch applied, if usbtiny_program_enable() always succeeds, the
> function will eventually fail and return -1. This is undoubtedly not the right
> behavior.
>
> There may be some devices for which usbtiny_cmd() appears to fail, even though
> they are operating successfully. But breaking the operation of devices that
> are actually behaving correctly can't be the right fix.
>
> [1] https://savannah.nongnu.org/patch/?9728
>
>
>
>
> _______________________________________________________
>
> Reply to this item at:
>
> <https://savannah.nongnu.org/bugs/?55734>
>
> _______________________________________________
> Message sent via Savannah
> https://savannah.nongnu.org/
>
--
Austin H. Roach
2288 S Walnut Grove Rd
Bloomfield, IN 47424
Cell: 812-512-4995
address@hidden