Basically I'm trying to wire up a MiniPOV3 but with ISP (6 pins) instead of a serial or parallel interface.
I have breadboarded an ATtiny2313 with 8 LEDs on PORTB and then programmed it with my USBtinyISP. It goes fine until I connect PB5..PB7 pins (MISO, MOSI and SCK). With those lines connected to my LEDs I can't get it to work.
My circuit is externally powered by a battery pack and the jumper in the USBtinyISP is off.
Can it be done?