[avrdude-dev] How to set SCK for STK500_v2 or USBASP ?

[Vaclav Peroutka]

Hello,

I started experimenting with avrdude and two programmers hardware - STK500_v2 
and USBASP. But the programming is terribly slow. Is there any parameter for 
avrdude command line to set SCK period ? For example, if I have 1MHz internal 
clock, I want to set SCK=4us. If I use 16MHz clock, I want to set SCK=0.4us 
manually. Is it possible to do it somehow (like it is in AvrStudio) ?

How avrdude decides which SCK period can be used ? 

Thank you in advance,
Vaclav