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i2c reset utility

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This commit is contained in:
Andrey
2023-11-09 09:48:51 +03:00
parent e3d84a1a02
commit fe054c3c4e
4 changed files with 36 additions and 8 deletions
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11
lighthub/modules/in_ccs811_hdc1080.cpp
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@@ -4,6 +4,7 @@
#include "Streaming.h" #include "Streaming.h"
#include "item.h" #include "item.h"
#include "main.h" #include "main.h"
#include "Wire.h"
#if defined(M5STACK) #if defined(M5STACK)
#include <M5Stack.h> #include <M5Stack.h>
@@ -63,8 +64,10 @@ delay(2000); */
return 1; return 1;
} }
int in_hdc1080::Setup() int in_hdc1080::Setup()
{ {
//i2cReset();
if (HDC1080ready) {debugSerial<<F("hdc1080 is already initialized")<<endl; return 0;} if (HDC1080ready) {debugSerial<<F("hdc1080 is already initialized")<<endl; return 0;}
debugSerial.println("HDC1080 Init "); debugSerial.println("HDC1080 Init ");
Wire.begin(); //Inialize I2C Harware Wire.begin(); //Inialize I2C Harware
@@ -81,15 +84,7 @@ HDC1080ready = true;
return 1; return 1;
} }
void i2cReset(){
#if defined (SCL_RESET)
Wire.endTransmission(true);
SCL_LOW();
delay(300);
SCL_HIGH();
#endif
}
int in_hdc1080::Poll(short cause) int in_hdc1080::Poll(short cause)
{ {

4
lighthub/owTerm.cpp
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@@ -26,6 +26,7 @@ e-mail anklimov@gmail.com
#include "options.h" #include "options.h"
#include "main.h" #include "main.h"
#include "aJSON.h" #include "aJSON.h"
//#include "twi.h"
extern aJsonObject *owArr; extern aJsonObject *owArr;
extern uint32_t timerCtr; extern uint32_t timerCtr;
@@ -125,6 +126,9 @@ int owSetup() {
//// todo - move memory allocation to here //// todo - move memory allocation to here
if (oneWire) return true; // Already initialized if (oneWire) return true; // Already initialized
#ifdef DS2482_100_I2C_TO_1W_BRIDGE #ifdef DS2482_100_I2C_TO_1W_BRIDGE
//twi_setTimeoutInMicros()
i2cReset();
debugSerial<<F("DS2482_100_I2C_TO_1W_BRIDGE init")<<endl; debugSerial<<F("DS2482_100_I2C_TO_1W_BRIDGE init")<<endl;
debugSerial<<F("Free:")<<freeRam()<<endl; debugSerial<<F("Free:")<<freeRam()<<endl;
oneWire = new OneWire; oneWire = new OneWire;

27
lighthub/utils.cpp
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@@ -876,5 +876,32 @@ bool checkToken(char * token, char * data)
return false; return false;
} }
void i2cReset(){
#if defined (SCL_RESET)
Wire.endTransmission(true);
SCL_LOW();
delay(300);
SCL_HIGH();
#endif
Wire.endTransmission(true);
Wire.end();
pinMode(SCL,OUTPUT);
pinMode(SDA,INPUT);
//10 сигналов клок
bool pulse=false;
for (int i=0; i<20;i++) {
//i2c_scl_toggle(i2c);
digitalWrite(SCL,pulse?HIGH:LOW);
pulse=!pulse;
delay(10);//10us мкс
}
Wire.begin();
}
#pragma message(VAR_NAME_VALUE(debugSerial)) #pragma message(VAR_NAME_VALUE(debugSerial))
#pragma message(VAR_NAME_VALUE(SERIAL_BAUD)) #pragma message(VAR_NAME_VALUE(SERIAL_BAUD))

2
lighthub/utils.h
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@@ -79,3 +79,5 @@ bool getPinVal(uint8_t pin);
int str2regSize(char * str); int str2regSize(char * str);
bool checkToken(char * token, char * data); bool checkToken(char * token, char * data);
bool isProtectedPin(short pin); bool isProtectedPin(short pin);
void i2cReset();