• Port B (PB7..PB0) → Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit) • Port C (PC5..PC0) → Port C is an 7-bit bi-directional I/O port with internal ...
Here you can learn many more interesting and useful about USB bootloaders for AVR microcontrollers. In practice, one of the most proper microcontroller programming method is using a bootloader program ...