Hello,
Whenever I try to upload a new sketch to my ATtiny85 using the Arduino as an ISP, I get the error message "avrdude: stk500_getsync(): not in sync: resp=0x00".
It worked before, but now it can't upload any new sketches. It just runs the old one.
I am using an Arduino Uno with Arduino 1.0.5 and this core. I have restarted the IDE and have a 10uF capacitor between ground and reset.
Is there a way to fix this problem?
I can upload to the Arduino Uno itself without a problem, just not to the ATtiny85.
Did you upload ArduionISP to the Uno before connecting the capacitor?
GeckoDiode:
I can upload to the Arduino Uno itself without a problem, just not to the ATtiny85.
You could try this : Just before u hit the upload link in the IDE, press the reset button on the Arduino.
GeckoDiode:
I am using an Arduino Uno with Arduino 1.0.5 and this core. I have restarted the IDE and have a 10uF capacitor between ground and reset.
Why do you have a 10uF cap between ground and reset? Is there some reason for this I'm not aware of when using arduino-as-isp? (I always use USBAsp to program tiny, which just works)
Disable auto-reset.
Ooooh, reset on the programming arduino, got it.
I tried your suggestions, and I think the problem was that I needed to re-upload the Arduino-ISP sketch as mentioned by "Coding Badly". I did that and now things seem to be working.
Thanks, you all!
Works fine without any cap when using Uno Rev 3, might be relevant for an older versions perhaps.
It only works with your particular board because the resonator runs slow.