Re: Re[2]: [avr-gcc-list] UISP and ATtiny15

[hanzl]

Maybe you could verify your hardware with avrdude to be sure that the
problem is in uisp?

  avrdude -c stk200 -p t15

should be enough to test - if you see line like '####...', it works.

I use avrdude with ATtiny15L-1PI under both Linux and Windows and it
works great.

If you have hw problem with programming hardware, it is easy to build
your own - I like most the 'bsd' type and use this variant:

Canon25 pins                  AVR chip

  2----250-,
  3----250-|-------------------VCC
  4----250-|
  5----250-'
  7-----1k---------------------RST
  8-----1k---------------------SCK
  9-----1k---------------------MOSI
  10---------------------------MISO
  18---------------------------GND


Now the command line for the first test is:

 avrdude -c bsd -p t15

(or better

 avrdude -c bsd -p t15 -E novcc

or

 avrdude -c bsd -p t15 -E vcc

to make sure that pins 2,3,4 and 5 have the same level)

Four 250 Ohm resistors provide voltage directly from the port (no
external supply), three 1k resistors provide some protection.

Regards

Vaclav