Program Timero in C to generate a square wave of 3 kHz. Assume that XTAL = 16 MHz. notes: Prescaller: 64 Duty cycle is 50% You need to round down the final decimal number (in microseconds) of timer values to the closest integer value #include "avr/io.h" void delay int main() us(); DDRA = DDRA | 1; while (1) PORTA = PORTA * (1