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#include <stdio.h>
#include "boards/pico_w.h"
#include "pico/stdio.h"
#include "hardware/gpio.h"
#include "hardware/clocks.h"
#include "pico/time.h"
//Generate a 40kHz square wave with duty 0.5 on pin 21
int main() {
stdio_init_all();
//21 --> GPIO Selection, Pin 21 (Clock 0)
//0x6 --> Input selection, CLK_SYS as input (125MHz)
//3125 --> Clock Divider Int, 125MHz/40kHz = 3125
clock_gpio_init(21, 0x6, 3125);
while(1) {
printf("Clock may or may not be running?");
sleep_ms(1000);
}
}
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