[Uisp-dev] Re: [avr-gcc-list] uisp and new STK500 firmware?

[Theodore A. Roth]

On Sat, 18 Jan 2003, Klaus Rudolph wrote:

:)Yann Ramin wrote:
:)> 
:)> Looks like I inadvertently upgraded my firmware on my STK500 as I moved
:)> to the latest version of AVR Studio on my Windows side. Now, as these
:)> things go, uisp won't work, claiming the device won't respond correctly.
:)> Does anyone have any ideas on how to downgrade firmware/make uisp aware
:)> of changes to the new STK500 firmware?
:)
:)Yes, I wrote a patch a long time ago. This patch is also available
:)from the download page. But I don´t know if that old patch works in
:)current
:)versions of uisp. Let´s wait on Tod :-) He can answer this question.
:)
:)http://savannah.nongnu.org/download/uisp/patches/
:)
:)This patch is for firmware 1.10.

I've been looking into this and it seems that firmware version 1.41 has 
changed the protocol. Here's what I get when I run uisp with firmware 1.41:

$ uisp -dprog=stk500 -dpart=atmega128 -v=4 --download of=foo.dump
Transmit: { 0 [30]   [20] }
Receive: { . [14] . [10] }
Transmit: { B [42] . [b2] . [00] . [00] . [01] . [01] . [01] . [01] . [03] . 
[ff] . [ff] . [ff] . [ff] . [01] . [00] . [10] . [00] . [00] . [02] . [00] . 
[00]   [20] }
Receive: { . [14] . [10] }
Transmit: { A [41] . [82]   [20] }
Receive: { . [14] . [0e] . [10] }
Transmit: { A [41] . [81]   [20] }
Receive: { . [14] . [01] . [10] }
Transmit: { E [45] . [03] . [00] . [d7] . [a0]   [20] }
Programmer is not responding.


I should have some more information some time next week.

Ted Roth