Quick question about fuse bits & bootloaders

Projects Programming
1

Hi,

I am trying to run a standalone atmega328p at 3.3v with the 8 MHz internal oscillator. Timing is not important in my application as it is handled by an RTC chip.

Is it as simple as uploading the 8MHz bootloader (using this tutorial: http://arduino.cc/en/Tutorial/ArduinoToBreadboard) and plugging in a 3.3v supply or do I need to mess with the fuses to get it to work?

Thanks

2

Is the processor brand new?

Will you be using a bootloader or ISP?

3

Processor is brand new. Will be using bootloader (burned with an ISP) then an onboard FTDI chip for serial comms/uploading firmware. Just need to figure out which bootloader to burn.

4

I did something very similar here:

5

Saved the day again Nick. I need to start checking your website before posting anything from now on!

Thanks a lot!