Beim Coprozessor gibt es eine erweiterte Paritätsprüfung, es werden jetzt 59 Impulse gezählt. In der 5 Volt Variante des Anzeigemoduls sind jetzt weniger Variablen.

This commit is contained in:
2025-05-19 17:24:47 +02:00
parent c8a2a390a6
commit ea16e78719
2 changed files with 89 additions and 75 deletions

View File

@ -6,28 +6,33 @@
Wenn ein gültiges Signal gesendet wurde, gibt es eine Pause von 30 Minuten,
in dieser Zeit wird der DCF Empfänger an Pin 6 abgeschaltet.
mit Hilfe von: https://wolles-elektronikkiste.de/dcf77-funkuhr
30.04.2025
19.05.2025
www.buschke.net
info@buschke.net
*/
#include <util/parity.h> //comment out if you don't use an AVR MCU
#define dcfOnOut 6
#define dcfOnOff 6
int interruptPin = 2;
volatile unsigned long lastInt = 0;
volatile unsigned long long currentBuf = 0;
volatile byte bufCounter;
volatile bool parityStat = 0;
volatile byte parityStat = 0;
volatile byte dcf77MinuteEiner = 0;
volatile byte dcf77MinuteZehner = 0;
volatile byte dcf77HourEiner = 0;
volatile byte dcf77HourZehner = 0;
volatile int testVar = 0;
unsigned long startMillis = 0;
const long waitingTime = 1800000; // 30 Minuten
byte dcfState = 0;
void setup() {
Serial.begin(9600);
pinMode(dcfOnOut, OUTPUT);
digitalWrite(dcfOnOut, HIGH);
pinMode(dcfOnOff, OUTPUT);
digitalWrite(dcfOnOff, HIGH);
pinMode(interruptPin, INPUT);
attachInterrupt(digitalPinToInterrupt(interruptPin), DCF77_ISR, CHANGE);
}
@ -44,12 +49,26 @@ void loop() {
Serial.print(dcf77MinuteEiner);
delay(100);
digitalWrite(dcfOnOut, LOW);
dcfState = LOW;
digitalWrite(dcfOnOff, dcfState);
parityStat = 0;
delay(1800000); // 30 Minuten, 15 Minuten Wartezeit: 900000
digitalWrite(dcfOnOut, HIGH);
}
unsigned long currentMillis = millis();
if (currentMillis - startMillis >= waitingTime) {
startMillis = currentMillis;
if (dcfState == HIGH) {
dcfState = LOW;
}
else {
dcfState = HIGH;
}
digitalWrite(dcfOnOff, dcfState);
}
}
/*************************************************************************
@ -58,15 +77,17 @@ void loop() {
**************************************************************************/
void DCF77_ISR() { //
void DCF77_ISR() {
unsigned int dur = 0;
dur = millis() - lastInt;
if (digitalRead(interruptPin)) {
if (dur > 1500) {
unsigned long highBuf = (currentBuf >> 32) & 0x7FFFFFF;
unsigned long lowBuf = (currentBuf & 0xFFFFFFFF);
testVar = bufCounter;
bufCounter = 0;
evaluateSequence();
@ -78,6 +99,7 @@ void DCF77_ISR() { //
currentBuf |= ((unsigned long long)1 << bufCounter);
}
bufCounter++;
}
lastInt = millis();
}
@ -106,11 +128,6 @@ void evaluateSequence() {
bool parityBitHour = (currentBuf >> 35) & 1;
bool parityBitDate = (currentBuf >> 58) & 1;
/***************************************************************************
Paritätsprüfung
***************************************************************************/
if ((parity_even_bit(dcf77Minute)) != parityBitMinute) {
parityStat = 0;
}
@ -122,6 +139,9 @@ void evaluateSequence() {
{
parityStat = 0;
}
if (dcf77MinuteEiner > 9) {
parityStat = 0;
}
@ -134,12 +154,7 @@ void evaluateSequence() {
if (dcf77HourZehner > 2) {
parityStat = 0;
}
if (dcf77Hour == 0 && dcf77Minute == 0) {
if (testVar != 59) {
parityStat = 0;
}
}
unsigned int rawByteToInt(byte raw) {
return ((raw >> 4) * 10 + (raw & 0x0F));
}