Arduino no longer shows up on a COM port.
I am working on a 200khz 50% waveform generator.
I was working on a sketch and then running the arduino over to my scope to find out where I am at.
I managed to get it to 250khz with this sketch and all was well.
#include <avr/io.h>
#include <util/delay.h>
int main(void)
{
pinMode(3, OUTPUT); // output pin for OCR2B
pinMode(5, OUTPUT); // output pin for OCR0B
// Set up the 250KHz output
TCCR2A = _BV(COM2A1) | _BV(COM2B1) | _BV(WGM21) | _BV(WGM20);
TCCR2B = _BV(WGM22) | _BV(CS20);
OCR2A = 63; //This is the reset point out of 255 count setting the frequency to 200khz.
//The higher the number in "OCR2A" the lower the Frequency.
OCR2B = 0; //This sets the duration of the pulse, half of the above number is = to 50% on time.
}
// Set up 8MHz output
//TCCR0A = _BV(COM0A1) | _BV(COM0B1) | _BV(WGM01) | _BV(WGM00);
//TCCR0B = _BV(WGM02) | _BV(CS00);
//OCR0A = 1;
//OCR0B = 0;
// Make the 250KHz rolling
//while (1) {
//_delay_us(5);
// if ( OCR2B < 63 )
// OCR2B += 5;
// else
// OCR2B = 0;
// }
//}
It was working fine, I plugged it back in and changed line 14, to: "OCR2A = 51; //This is the reset point out of 255 count setting the frequency to 200kHz.".
And line 18 to "OCR2B = 26; //This sets the duration of the pulse, half of the above number is = to 50% on time.".
And now the led's light up on the board, but there is no out put on any pins. Also when I reconnect it to the USB, it will not show up on any com port...
I am running win 10, and I tried another Arduino on the same cord, and USB port and it works fine. I shows up on com4.
So before I try and upload this code to the new board does anyone see anything in the code that can harm the arduino?
