atmega328 on a breadboard on arduino 1.8.5 not showing up

I added “-b 19200” into my avrdude command, which produced the error:Īvrdude: ser_open(): can't set attributes for device '/dev/ttyS0': Inappropriate ioctl for device I believe that when you attempt to use ArduinoISP you need “-b 19200″ in your avrdude command so it won’t interact with the bootloader (Optiboot uses 115200 I think).” “The thing that determines which you “talk to” is the baud rate. One answer from researching suggested to changed the baud rate. Reading | # | 100% 0.00sĪvrdude: Expected signature for ATmega328P is 1E 95 14ĭouble check chip, or use -F to override this check.Īlright, so looks like 0x0f vs 0x14 is messing up the reading of the device… I’m using the Arduino UNO to serially program the fuse bytes.Īvrdude -c arduino -p m328p -P /dev/ttyACM0 -v -U lfuse:r:hĪvrdude: AVR device initialized and ready to accept instructions All the following comes from my engineering log on GitHub: The circuit can be found in my previous posts: ATMega328P Burning the Bootloader So, back to the drawing board of setting up fuse bytes by reprogramming the bootloader.

I needed to use the 8MHz internal clock for the processor. Originally, the arduino bootloader has the fuse byte settings to use an external 16MHz clock. I took to UTW to ask about my problem, and as silly as it sounds, it turns out I forgot to program the microcontroller to use the 8MHz internal oscillator for the programmer! The LED wasn’t turning on and off like I programmed it to do when waking up from sleep, and sporadically it would turn on really brightly, then off. I wanted to test out Nick Gammon’s code, so I set up his example circuit:īut it was still dorking out. I ended up asking some questions on the Arduino Stack Exchange to really understand what I was doing and should do. To get the 32.kHz clock to work was challenging, because I forgot some minor aspects of how to set the circuit up. This way I can keep track of time even as the microcontroller is off and saving power. For the past week I’ve been debugging hardware and software to get my barebones ATmega328P to work with a 32.768kHz oscillator as Timer 2, which will tick outside of the sleeping microcontroller.

Atmega328 on a breadboard on arduino 1.8.5 not showing up