Created
August 17, 2017 17:27
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Operate CLKTC0 Counter0 to count external rising edges from T1pin(DPIN 11)
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#include <Arduino.h> | |
#include <LiquidCrystal.h> | |
LiquidCrystal lcd(A0,A1,A2,A3,A4,A5); | |
void setup() | |
{ | |
int secPassed=0; | |
pinMode(11,INPUT); | |
TCCR0B=0x00; /// TC0 Stop | |
TCNT0=0x00; ///TCNT0 preset=0 | |
TCCR0A=0x00; ///TC0 As normal counter mode | |
TCCR0B=0x07; /// TC0 start with rising edge from dpin 11 | |
bitSet(TIFR1,0); /// TOV0 Clear | |
TCCR1A=0x00; /// TC1 as Counter mode | |
TCCR1B=0x00; /// TC1 Stop | |
TCNT1=0xC2F7; ///Timer1 Preset | |
bitSet(TIFR1,2); /// TOV1 CLEAR | |
TCCR1B=0x05; /// Timer1 Start | |
while(secPassed<=10) | |
{ | |
if (bitRead(TIFR1,2)==1) | |
{ | |
TCCR1B=0x00; | |
TCNT1=0xC2F7; | |
bitSet(TIFR1,2); ///TOV1 Clear | |
secPassed=secPassed+1; | |
TCCR1B=0x05; | |
} | |
} | |
lcd.begin(16,2); | |
lcd.clear(); | |
lcd.setCursor(6,0); | |
lcd.print(TCNT0,10); /// Show Pulse Count on LCD | |
} | |
void loop() | |
{ | |
} |
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