[avr-gcc-list] RE: [avrdude-dev] Re: How to talk to second device in JTAG chain?

[Wouter van Gulik]

> 
> The fallback plan is to have a header with TRST, TCK and TDI
> pins shared, with separate TDO and TMS pins for each device. :/
> 

That's a good idea anyway, since all debugging instruction must go through
the other chip, you get an extra delay per cycle. For a few bytes this is
ok, but when (down)loading several Kbytes this start to be uncomfortable.

HTH,

Wouter