Which programmer to use for avrdude?

[Brian O.]

Hi,

I'm trying to use optiboot to load some application code on my device.
Just wondering which programmer I should be passing to avrdude (using
the -c option). I've tried stk500, stk500v1, stk500v2 and arduino but
none of them seem to work out of the box.

I see stk500 and stk500v2 use the new protocol and it looks like
that's not supported. Cool.

When I start avrdude with "-c stk500v1" or "-c arduino" and turn on
extreme verbose logging ("-v -v -v -v") I can see that it sends 0x30,
0x20. 0x30 is the GET_SYNC command but it's not handled by the
optiboot code. After adding a handler that looks something like this..

else if(ch == STK_GET_SYNC) {
verifySpace();
}

... the process gets much farther before error'ing out on a later
issue.

So, should I be using stk500v1 and/or arduino as the programmer for
optiboot?

Thx,
Brian.