I had been playing around with different coding for the Peggy, and decided to go back to the default code with all LED lit on the Peggy. I am having trouble uploading the code to the Peggy, and keep being faced with errors, such as "In function 'int main()':
error: redefinition of 'int main()'" when I verify the code "peggy2.c" and am faced with even more errors with the makefile. I am clearly dong something wrong, and am unsure what exactly I am supposed to with both codes.

Any help would e appreciated.
–Brett

It sounds like you're trying to run avr-gcc code from within the Arduino environment, or maybe vice versa.

If you have a file called peggy2.c, you should run it with the makefile and avr-gcc. (If you don't have the software toolchain installed already, you can get it through win-avr on Windows or Crosspack on the mac.)

If you want to use the Arduino environment, download the Peggy2 library for Arduino, and the included "minimal" peggy2 demo is very close to the default firmware.