Hi, I have questions about 18F4520 internal oscillator calibration and set up.
1. Do you have to set it up every time you will be programming or will it be set to a default value of 8MHz?
2. Does it have to be calibrated every time or the factory calibration will do?
I did refer to the data sheets but could not fully understand whether these 2 things have to be done every time you'll be writing some code and storing it in the chip.
If you having a new code every time, you have to specify the required frequency in your code. Or if not specified it will assume the default 1MHz, as wp100 said.