I have a standalone arduino running with a MAX232 that works when I test it with a pre-compiled sketch. If i type something in the serial monitor it prints it back to me. However, when I try to program the chip it doesn't work it says this:
Binary sketch size: 4,464 bytes (of a 32,256 byte maximum)
avrdude: stk500_getsync(): not in sync: resp=0x00
Any suggestions would be appreciated. Please see the attached photo.
cameronasmith:
I have a standalone arduino running with a MAX232 that works when I test it with a pre-compiled sketch.
In other words, you loaded the sketch while the chip was in an Arduino UNO board.
cameronasmith:
If I type something in the serial monitor it prints it back to me. However, when I try to program the chip it doesn't work it says this:
It's missing the reset circuit. RTS on the RS-232 port goes to the second RS-232 receiver on the MAX232, the output of that receiver goes via a 0.1µF capacitor to the reset line of your ATmega.