patchAVR Downloader/UploaDEr - Patches: patch #9320, fix TPI RESET in bitbang.c

 
 

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patch #9320: fix TPI RESET in bitbang.c

Submitter:  David Mosberger-Tang <dmosberger>
Submitted:  Thu 27 Apr 2017 05:05:49 PM UTC
   
 
Category:  None Priority:  5 - Normal
Status:  Done Privacy:  Public
Assigned to:  joerg_wunsch Open/Closed:  Closed

Sun 14 Nov 2021 01:18:15 PM UTC, comment #1: 

Applied in r1472, thanks.

Joerg Wunsch <joerg_wunsch>
Group administrator
Thu 27 Apr 2017 05:05:49 PM UTC, original submission:  

RESET needs to be low before doing the MOSI/MISO link check.  Otherwise, the chip may be running a program that outputs values on the TPIDATA pin and that could cause the MOSI/MISO link check to fail.

Also increase RESET assertion time to 128ms (worst-case specified in the ATtiny9 datasheet).

David Mosberger-Tang <dmosberger>

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attached Files

 

Depends on the following items: None found

Items that depend on this one: None found

 

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    Follow 4 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2021-11-14 joerg_wunsch StatusNone Done
        Assigned toNone joerg_wunsch
        Open/ClosedOpen Closed
    2017-04-27 dmosberger Attached File- Added avrdude-bitbang-reset-fix.diff, #40520

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