I have a 16u2 programming a 1284P for a custom board I am building. The 16u2 converts USB to USART for programming the 1284P, however the 16u2 has a maximum frequency of 16MHZ while the 1284P has a maximum frequency of 20MHZ. I am aiming to use the 20MHZ crystal with the 1284P. Does the target de...