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Add Setoption74 to runtime configuration of internal pullup resistor usage for single DS18x20 sensor

This commit is contained in:
Bohdan Kmit 2019-10-30 21:58:38 +02:00
parent 9d6be8166b
commit 393f568276
2 changed files with 4 additions and 16 deletions
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2
tasmota/settings.h
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@ -87,7 +87,7 @@ typedef union { // Restricted by MISRA-C Rule 18.4 bu
uint32_t dds2382_model : 1; // bit 21 (v6.6.0.14) - SetOption71 - Select different Modbus registers for Active Energy (#6531)
uint32_t hardware_energy_total : 1; // bit 22 (v6.6.0.15) - SetOption72 - Enable / Disable hardware energy total counter as reference (#6561)
uint32_t cors_enabled : 1; // bit 23 (v7.0.0.1) - SetOption73 - Enable HTTP CORS
uint32_t spare24 : 1;
uint32_t ds18x20_internal_pullup : 1; // bit 24 (v7.0.0.1) - SetOption74 - Enable internal pullup for single DS18x20 sensor
uint32_t spare25 : 1;
uint32_t spare26 : 1;
uint32_t spare27 : 1;

18
tasmota/xsns_05_ds18x20.ino
View File

@ -74,11 +74,7 @@ uint8_t OneWireReset(void)
uint8_t retries = 125;
//noInterrupts();
#ifdef DS18B20_INTERNAL_PULLUP
pinMode(ds18x20_pin, INPUT_PULLUP);
#else
pinMode(ds18x20_pin, INPUT);
#endif
pinMode(ds18x20_pin, Settings.flag3.ds18x20_internal_pullup ? INPUT_PULLUP : INPUT);
do {
if (--retries == 0) {
return 0;
@ -88,11 +84,7 @@ uint8_t OneWireReset(void)
pinMode(ds18x20_pin, OUTPUT);
digitalWrite(ds18x20_pin, LOW);
delayMicroseconds(480);
#ifdef DS18B20_INTERNAL_PULLUP
pinMode(ds18x20_pin, INPUT_PULLUP);
#else
pinMode(ds18x20_pin, INPUT);
#endif
pinMode(ds18x20_pin, Settings.flag3.ds18x20_internal_pullup ? INPUT_PULLUP : INPUT);
delayMicroseconds(70);
uint8_t r = !digitalRead(ds18x20_pin);
//interrupts();
@ -121,11 +113,7 @@ uint8_t OneWireReadBit(void)
pinMode(ds18x20_pin, OUTPUT);
digitalWrite(ds18x20_pin, LOW);
delayMicroseconds(3);
#ifdef DS18B20_INTERNAL_PULLUP
pinMode(ds18x20_pin, INPUT_PULLUP);
#else
pinMode(ds18x20_pin, INPUT);
#endif
pinMode(ds18x20_pin, Settings.flag3.ds18x20_internal_pullup ? INPUT_PULLUP : INPUT);
delayMicroseconds(10);
uint8_t r = digitalRead(ds18x20_pin);
//interrupts();