NSL AnnoyTron

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Programing Notes

AVRdude programming header setup

AVRISP Target ATtiny

connector pins pin # 

1 (MISO)	TPIDATA	1
2 (VTref)	Vcc	5
3 (SCK)	        TPICLK	3
4 (MOSI)		
5 (RESET)	/RESET	6
6 (GND)	         GND	2

Problem: My ATtiny4/5/9/10 reads out fine, but any attempt to program it (through TPI) fails. Instead, the memory retains the old contents. 

Solution: Mind the limited programming supply voltage range of these devices.
In-circuit programming through TPI is only guaranteed by the datasheet at Vcc = 5 V.

STK 600 also supports TPI

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