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[avr-gcc-list] ATtiny12 + uisp - problem?

From: Anich Gregor
Subject: [avr-gcc-list] ATtiny12 + uisp - problem?
Date: Mon, 25 Aug 2003 22:31:35 +0200
User-agent: KMail/1.5.2

I bought some ATtiny12L to build R/C V-Mixers which take 2 PWM channels as 
input, mix them, and output 2 PWM signals... The problem is that it seems 
like i am not even able to program the device... ;)

uisp -dprog=stk500 -dpart=attiny12 --erase
Firmware Version: 1.10
Atmel AVR ATtiny12 is found.
uisp -dprog=stk500 -dpart=attiny12 --upload --verify if=main.hex
Firmware Version: 1.10
Cannot identify device because it is locked.
Device similar to the ATmega103-old is found.
Uploading: flash
Verifying: flash

verification fails for every single byte (the first 2 are 0x00, the second 2 
bytes are 0x01 and so on)
It says the device is locked, but i didn't program any fuse bits... does the 
device only send "wrong flash" that it cannot be downloaded or do i also have 
to unlock it (and how?) to program the flash memory?
these aren't any second hand devices - fresh stuff ;)


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