bugAVR Downloader/UploaDEr - Bugs: bug #40144, flash config for ATtiny1634 is...


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bug #40144: flash config for ATtiny1634 is wrong

Submitter:  Tobias Diedrich <ranma42>
Submitted:  Sun 29 Sep 2013 11:41:38 PM UTC
Category:  None Severity:  3 - Normal
Priority:  5 - Normal Item Group:  None
Status:  None Privacy:  Public
Assigned to:  None Originator Name:  Tobias Diedrich
Open/Closed:  Open Release:  None
Programmer hardware:  Device type: 

Sun 29 Sep 2013 11:41:38 PM UTC, original submission:  

The addressing config for flash programming is off ( loadpage_lo / loadpage_hi / writepage).

According to the datasheet it is 512 32-word pages,
so it needs to be a3-0 for loadpage and a12-a4 for writepage.

The sympton is verification failures and on reading back the flash blocks of 32 words corrupted data followed by 3 x 32 words of 0xff.

After changing it to:
        loadpage_lo     = " 0 1 0 0 0 0 0 0",
                          " 0 0 0 x x x x x",
                          " x x x x a3 a2 a1 a0",
                          " i i i i i i i i";
        loadpage_hi     = " 0 1 0 0 1 0 0 0",
                          " 0 0 0 x x x x x",
                          " x x x x a3 a2 a1 a0",
                          " i i i i i i i i";
        writepage       = " 0 1 0 0 1 1 0 0",
                          " 0 0 0 a12 a11 a10 a9 a8",
                          " a7 a6 a5 a4 x x x x",
                          " x x x x x x x x";
it now works fine for me.

Tobias Diedrich <ranma42>


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