Show Posts
Pages: [1]
1  Using Arduino / Installation & Troubleshooting / Re: avrdude: stk500_getsync(): not in sync: resp=0x00 on: April 20, 2012, 05:55:57 pm
The chip in my arduino uno will work fine when I send it a sketch. If I disconnect and reconnect, the chip doesn't function and gives me 3 blinks - delay - 3 blinks - delay - repeat. Seems like the chip keeps rebooting. If I send it a new sketch, it will operate like normal again.

Anyone?
2  Using Arduino / Installation & Troubleshooting / Re: avrdude: stk500_getsync(): not in sync: resp=0x00 on: April 20, 2012, 09:39:58 am
I have this same problem on my standalone circuit. I'm using an preloaded Uno bootloader on ATMEGA328 from Sparkfun. I'm also using the FTDI breakout board and my drivers are properly installed.

I can't figure out where/if a connection is wrong. I have the reset pin pulled to high with 8kOhm and there is a 0.1uF cap from DTR to Reset, and the chip is getting proper voltages (5V) to Vcc, and AVcc.

So I programmed the chip in my Arduino Uno, the popped it into my standalone and it doesn't function. The digital outputs don't work and I don't get anything on the serial monitor like I should. The one weird thing is that when I put the chip back into my Arduino. It acts like there's no program on the device and doesn't work unless I upload a new sketch.
Pages: [1]