Code:
// TCCR1A=0b101000 "10"; // 10 = WGM11 WGM10 / 0. i 1. bit// TCCR1B=0b000 "11" 001; // 11 = WGM13 WGM12 / 3. i 4. bit //****************************************************************************** // MODE--WGM13--WGM12--WGM11--WGM10** DESCRIPTION TOP // ----**-----**-----**-----**-----**------------------------------**----------- // 0 ** 0 ** 0 ** 0 ** 0 ** NORMAL ** 0xFFFF // 1 ** 0 ** 0 ** 0 ** 1 ** PWM, Phase Corrected, 8bit ** 0x00FF // 2 ** 0 ** 0 ** 1 ** 0 ** PWM, Phase Corrected, 9bit ** 0x01FF // 3 ** 0 ** 0 ** 1 ** 1 ** PWM, Phase Corrected, 10bit ** 0x03FF // 4 ** 0 ** 1 ** 0 ** 0 ** CTC ** OCR1A // 5 ** 0 ** 1 ** 0 ** 1 ** FAST PWM. 8bit ** 0x00FF // 6 ** 0 ** 1 ** 1 ** 0 ** FAST PWM, 9bit ** 0x01FF // 7 ** 0 ** 1 ** 1 ** 1 ** FAST PWM, 10bit ** 0x03FF // 8 ** 1 ** 0 ** 0 ** 0 ** PWM, Phase&Freq. Corrected ** ICR1 // 9 ** 1 ** 0 ** 0 ** 1 ** PWM, Phase&Freq. Corrected ** OCR1A // 10 ** 1 ** 0 ** 1 ** 0 ** PWM, Phase Correct ** ICR1 // 11 ** 1 ** 0 ** 1 ** 1 ** PWM, Phase Correct ** OCR1A // 12 ** 1 ** 1 ** 0 ** 0 ** CTC ** ICR1 // 13 ** 1 ** 1 ** 0 ** 1 ** RESERVED ** // 14 ** 1 ** 1 ** 1 ** 0 ** FAST PWM ** ICR1 // 15 ** 1 ** 1 ** 1 ** 1 ** FAST PWM ** OCR1A //****************************************************************************** //TCCR1B=0b00011 000 Timer/Counter1 Disabled //TCCR1B=0b00011 001 No Prescaling //TCCR1B=0b00011 010 Clock / 8 //TCCR1B=0b00011 011 Clock / 64 //TCCR1B=0b00011 100 Clock / 256 //TCCR1B=0b00011 101 Clock / 1024 // ICR1 Input Capture 16-bit Register // OCR1A Output Compare Register void setup() { pinMode(9, OUTPUT); //PWM Waveform Generation Modes with a settable TOP value // 600Hz, 6.25%, 100uS //ICR1=16MHz /1/600Hz = 26666,66666666667 TOP with /1 prescaling ICR1=26666 ; TCCR1A=0b10100010; //fast PWM with Wave Generation Mode 14 TCCR1B=0b00011001; //Prescaler /1 / No Prescaling TCCR1C=0; OCR1A=ICR1/16; // 100% duty cycle/16 = 6.25%, 100uS } void loop() { }