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Fixed autodetect

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This commit is contained in:
Gunnar Skjold 2024-05-23 18:58:20 +02:00
parent b6168a0082
commit 703c68a2cf
2 changed files with 10 additions and 45 deletions
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52
src/PassiveMeterCommunicator.cpp
View File

@ -35,6 +35,9 @@ void PassiveMeterCommunicator::configure(MeterConfig& meterConfig, Timezone* tz)
bool PassiveMeterCommunicator::loop() {
if(hanBufferSize == 0) return false;
unsigned long now = millis();
if(autodetect) handleAutodetect(now);
unsigned long start, end;
if(!hanSerial->available()) {
return false;
@ -47,9 +50,6 @@ bool PassiveMeterCommunicator::loop() {
return false;
}
unsigned long now = millis();
if(autodetect) handleAutodetect(now);
dataAvailable = false;
ctx = {0,0,0,0};
memset(ctx.system_title, 0, 8);
@ -696,17 +696,15 @@ void PassiveMeterCommunicator::handleAutodetect(unsigned long now) {
if(!validDataReceived) {
if(now - meterAutodetectLastChange > 20000 && (meterConfig.baud == 0 || meterConfig.parity == 0)) {
autodetect = true;
pinMode(meterConfig.rxPin, INPUT);
digitalWrite (meterConfig.rxPin, HIGH);
autodetectBaud = detectBaudRate(meterConfig.rxPin);
if(autodetectCount == 2) {
autodetectInvert = !autodetectInvert;
autodetectCount = 0;
}
autodetectBaud = AUTO_BAUD_RATES[autodetectCount++];
if (debugger->isActive(RemoteDebug::INFO)) debugger->printf_P(PSTR("Meter serial autodetect, swapping to: %d, %d, %s\n"), autodetectBaud, autodetectParity, autodetectInvert ? "true" : "false");
meterConfig.bufferSize = max((uint32_t) 1, autodetectBaud / 14400);
setupHanPort(autodetectBaud, autodetectParity, autodetectInvert);
meterAutodetectLastChange = now;
if(autodetectCount++ == 5) {
autodetectInvert = !autodetectInvert;
autodetectCount = 0;
}
}
} else if(autodetect) {
if (debugger->isActive(RemoteDebug::INFO)) debugger->printf_P(PSTR("Meter serial autodetected, saving: %d, %d, %s\n"), autodetectBaud, autodetectParity, autodetectInvert ? "true" : "false");
@ -718,37 +716,3 @@ void PassiveMeterCommunicator::handleAutodetect(unsigned long now) {
setupHanPort(meterConfig.baud, meterConfig.parity, meterConfig.invert);
}
}
uint32_t PassiveMeterCommunicator::detectBaudRate(uint8_t pin) {
long x;
for (int i = 0; i < 5; i++){
while(digitalRead(pin) == 1){} // wait for low bit to start
x = pulseIn(pin, LOW); // measure the next zero bit width
rate = x < rate ? x : rate;
}
if (rate < 12)
return 115200;
else if (rate < 20)
return 57600;
else if (rate < 29)
return 38400;
else if (rate < 40)
return 28800;
else if (rate < 60)
return 19200;
else if (rate < 80)
return 14400;
else if (rate < 150)
return 9600;
else if (rate < 300)
return 4800;
else if (rate < 600)
return 2400;
else if (rate < 1200)
return 1200;
else if (rate < 2400)
return 600;
else if (rate < 4800)
return 300;
return 0;
}

3
src/PassiveMeterCommunicator.h
View File

@ -18,6 +18,8 @@
#include "SoftwareSerial.h"
#endif
const uint32_t AUTO_BAUD_RATES[] = { 2400, 115200 };
class PassiveMeterCommunicator : public MeterCommunicator {
public:
PassiveMeterCommunicator(RemoteDebug* debugger);
@ -79,7 +81,6 @@ protected:
void debugPrint(byte *buffer, int start, int length);
void printHanReadError(int pos);
void handleAutodetect(unsigned long now);
uint32_t detectBaudRate(uint8_t pin);
};
#endif