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Modified Arduino Wire library which implements basic timeout.

License: GNU General Public License v2.0

C++ 36.12% C 63.88%

sbwire's Introduction

SBWire

Modified Arduino Wire library which implements basic timeout using loop counting. The default timeout is approximately 100 us and is calculated using F_CPU.

This library has been tested by holding SDA high, which blocks the standard Wire library, while SBWire timesout and continues execution. When SDA is restored, I2C communication is not established until the slave is rebooted.

Usage

Simply replace

#include <Wire.h>

With

#include <SBWire.h>

The API is exactly the same.

There is a basic C function to controlling the loop count, twi_setMaxLoops(uint16_t maxloops).

Timeout Behaviour

On timeout, twi_stop() is called followed by twi_init() in an attempt to restart the bus.

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paynterf sinozhou javichu aferrero2707 slviajero akellai

sbwire's Issues

SBWire not compatible with elapsedMillis library?

Hi,

I just tried your SBWire library in an application that uses the IC2dev & elapsedMillis libraries. I'm connecting to a DFRobots IMU6050 module and an Adafruit RTC module.

I have a routine in my main loop that checks for IMU6050 data every 250 msec, and this is accomplished using an elapsedMillis object. This works fine with the regular Wire library, but stops working when I change from Wire.h to SBWire.h. The only change in my application is two lines (one in I2Cdev.h, and one in Arduino_IMU6050_Test3.ino).

Thoughts?

cant compile for esp32 wemos lolin 32 board in arduino ide using expressif 2.0.0 version(arduino core) in board manager

cant compile for esp32 wemos lolin 32 board in arduino ide using expressif 2.0.0 version(arduino core) in board manager and shoing this error when comping the inbuilt potentiometr example

Arduino: 1.8.19 (Windows 10), Board: "WEMOS LOLIN32, 80MHz, Default, 240MHz (WiFi/BT), 921600"

C:\Users\ABI\Documents\Arduino\libraries\SBWire-master\src\utility\twi.c:27:10: fatal error: avr/io.h: No such file or directory

#include <avr/io.h>

      ^~~~~~~~~~

compilation terminated.

exit status 1

Error compiling for board WEMOS LOLIN32.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

if the I2C port is not initiated before than the program crashes

if the I2C port is not initiated before like this:
i2cPort = &wirePort;
and we do
i2cPort->write
than the program crashes
Maybe we can check this in the write routine?

SBWire not compatible with Real Time Clock code

Hello

I did test SBWire with an I2C Scanner and it work flawlessly. Now I'm testing it with an I2C RTC (real time clock) module and the code won't compile. I'm quite green with Arduino and all stuff around it.

I did include a copy of both code and a copy of the error reported by the compiler

For both code, I only modified the #include <Wire.h> for #include <SBWire.h>

Board Arduino Mega 2560

Code RTC (won't compile)

`#include <SBWire.h>
#include "RTClib.h"

RTC_DS1307 rtc;

char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};

void setup () 
{
  Serial.begin(9600);
  delay(3000); // wait for console opening

  if (! rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }

  if (!rtc.isrunning()) {
    Serial.println("RTC lost power, lets set the time!");
  
  // Comment out below lines once you set the date & time.
    // Following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  
    // Following line sets the RTC with an explicit date & time
    // for example to set January 27 2017 at 12:56 you would call:
    // rtc.adjust(DateTime(2017, 1, 27, 12, 56, 0));
  }
}

void loop () 
{
    DateTime now = rtc.now();
    
    Serial.println("Current Date & Time: ");
    Serial.print(now.year(), DEC);
    Serial.print('/');
    Serial.print(now.month(), DEC);
    Serial.print('/');
    Serial.print(now.day(), DEC);
    Serial.print(" (");
    Serial.print(daysOfTheWeek[now.dayOfTheWeek()]);
    Serial.print(") ");
    Serial.print(now.hour(), DEC);
    Serial.print(':');
    Serial.print(now.minute(), DEC);
    Serial.print(':');
    Serial.print(now.second(), DEC);
    Serial.println();
    
    Serial.println("Unix Time: ");
    Serial.print("elapsed ");
    Serial.print(now.unixtime());
    Serial.print(" seconds/");
    Serial.print(now.unixtime() / 86400L);
    Serial.println(" days since 1/1/1970");
    
    // calculate a date which is 7 days & 30 seconds into the future
    DateTime future (now + TimeSpan(7,0,0,30));
    
    Serial.println("Future Date & Time (Now + 7days & 30s): ");
    Serial.print(future.year(), DEC);
    Serial.print('/');
    Serial.print(future.month(), DEC);
    Serial.print('/');
    Serial.print(future.day(), DEC);
    Serial.print(' ');
    Serial.print(future.hour(), DEC);
    Serial.print(':');
    Serial.print(future.minute(), DEC);
    Serial.print(':');
    Serial.print(future.second(), DEC);
    Serial.println();
    
    Serial.println();
    delay(1000);
}`

Code scanner (Do compile)
`
// --------------------------------------
//http://playground.arduino.cc/Main/I2cScanner
// i2c_scanner
//
// Version 1
// This program (or code that looks like it)
// can be found in many places.
// For example on the Arduino.cc forum.
// The original author is not know.
// Version 2, Juni 2012, Using Arduino 1.0.1
// Adapted to be as simple as possible by Arduino.cc user Krodal
// Version 3, Feb 26 2013
// V3 by louarnold
// Version 4, March 3, 2013, Using Arduino 1.0.3
// by Arduino.cc user Krodal.
// Changes by louarnold removed.
// Scanning addresses changed from 0...127 to 1...119,
// according to the i2c scanner by Nick Gammon
// http://www.gammon.com.au/forum/?id=10896
// Version 5, March 28, 2013
// As version 4, but address scans now to 127.
// A sensor seems to use address 120.
// Version 6, November 27, 2015.
// Added waiting for the Leonardo serial communication.
//
//
// This sketch tests the standard 7-bit addresses
// Devices with higher bit address might not be seen properly.
// Watch Video explainign I2C address: https://www.youtube.com/watch?v=bqMMIbmYJS0
//

#include <SBWire.h>

void setup()
{
Wire.begin();

Serial.begin(9600);
while (!Serial); // Leonardo: wait for serial monitor
Serial.println("I2C Scanner");
}

void loop()
{
byte error, address;
int nDevices;

Serial.println("Scanning...");

nDevices = 0;
for(address = 1; address < 127; address++ )
{
// The i2c_scanner uses the return value of
// the Write.endTransmisstion to see if
// a device did acknowledge to the address.
Wire.beginTransmission(address);
error = Wire.endTransmission();

if (error == 0)
{
  Serial.print("I2C device found at address 0x");
  if (address<16)
    Serial.print("0");
  Serial.print(address,HEX);
  Serial.println("  !");

  nDevices++;
}
else if (error==4)
{
  Serial.print("Unknown error at address 0x");
  if (address<16)
    Serial.print("0");
  Serial.println(address,HEX);
}

}
if (nDevices == 0)
Serial.println("No I2C devices found");
else
Serial.println("done");

delay(5000); // wait 5 seconds for next scan
} `

Copy of the error message

Arduino: 1.8.13 Hourly Build 2020/03/25 03:33 (Windows 10), Board: "Arduino Mega or Mega 2560, ATmega2560 (Mega 2560)"

java.io.IOException: Accès refusé
at java.io.WinNTFileSystem.createFileExclusively(Native Method)
at java.io.File.createTempFile(File.java:2024)
at processing.app.BaseNoGui.saveFile(BaseNoGui.java:886)
at processing.app.SketchFile.save(SketchFile.java:287)
at processing.app.Sketch.save(Sketch.java:138)
at processing.app.SketchController.save(SketchController.java:352)
at processing.app.Editor.handleSave2(Editor.java:1908)
at processing.app.Editor.handleSave(Editor.java:1883)
at processing.app.Editor.handleRun(Editor.java:1592)
at processing.app.Editor.handleRun(Editor.java:1587)
at processing.app.EditorToolbar.handleSelectionPressed(EditorToolbar.java:465)
at processing.app.EditorToolbar.mousePressed(EditorToolbar.java:448)
at java.awt.Component.processMouseEvent(Component.java:6536)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6304)
at java.awt.Container.processEvent(Container.java:2239)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2297)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4904)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4532)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4476)
at java.awt.Container.dispatchEventImpl(Container.java:2283)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:84)
at java.awt.EventQueue$4.run(EventQueue.java:733)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:730)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Accès refusé

G:\Arduino\arduino-nightly\arduino-builder -dump-prefs -logger=machine -hardware G:\Arduino\arduino-nightly\hardware -hardware C:\Users\Utilisateur\AppData\Local\Arduino15\packages -tools G:\Arduino\arduino-nightly\tools-builder -tools G:\Arduino\arduino-nightly\hardware\tools\avr -tools C:\Users\Utilisateur\AppData\Local\Arduino15\packages -built-in-libraries G:\Arduino\arduino-nightly\libraries -libraries C:\Users\Utilisateur\Documents\Arduino\libraries -fqbn=arduino:avr:mega:cpu=atmega2560 -vid-pid=1A86_7523 -ide-version=10813 -build-path g:\temp\arduino_build_568261 -warnings=none -build-cache g:\temp\arduino_cache_781909 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.avrdude.path=G:\Arduino\arduino-nightly\hardware\tools\avr -prefs=runtime.tools.avrdude-6.3.0-arduino17.path=G:\Arduino\arduino-nightly\hardware\tools\avr -prefs=runtime.tools.avr-gcc.path=G:\Arduino\arduino-nightly\hardware\tools\avr -prefs=runtime.tools.avr-gcc-7.3.0-atmel3.6.1-arduino5.path=G:\Arduino\arduino-nightly\hardware\tools\avr -prefs=runtime.tools.arduinoOTA.path=G:\Arduino\arduino-nightly\hardware\tools\avr -prefs=runtime.tools.arduinoOTA-1.3.0.path=G:\Arduino\arduino-nightly\hardware\tools\avr -verbose g:\temp\arduino_modified_sketch_829772\RTC_4.ino
G:\Arduino\arduino-nightly\arduino-builder -compile -logger=machine -hardware G:\Arduino\arduino-nightly\hardware -hardware C:\Users\Utilisateur\AppData\Local\Arduino15\packages -tools G:\Arduino\arduino-nightly\tools-builder -tools G:\Arduino\arduino-nightly\hardware\tools\avr -tools C:\Users\Utilisateur\AppData\Local\Arduino15\packages -built-in-libraries G:\Arduino\arduino-nightly\libraries -libraries C:\Users\Utilisateur\Documents\Arduino\libraries -fqbn=arduino:avr:mega:cpu=atmega2560 -vid-pid=1A86_7523 -ide-version=10813 -build-path g:\temp\arduino_build_568261 -warnings=none -build-cache g:\temp\arduino_cache_781909 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.avrdude.path=G:\Arduino\arduino-nightly\hardware\tools\avr -prefs=runtime.tools.avrdude-6.3.0-arduino17.path=G:\Arduino\arduino-nightly\hardware\tools\avr -prefs=runtime.tools.avr-gcc.path=G:\Arduino\arduino-nightly\hardware\tools\avr -prefs=runtime.tools.avr-gcc-7.3.0-atmel3.6.1-arduino5.path=G:\Arduino\arduino-nightly\hardware\tools\avr -prefs=runtime.tools.arduinoOTA.path=G:\Arduino\arduino-nightly\hardware\tools\avr -prefs=runtime.tools.arduinoOTA-1.3.0.path=G:\Arduino\arduino-nightly\hardware\tools\avr -verbose g:\temp\arduino_modified_sketch_829772\RTC_4.ino
Using board 'mega' from platform in folder: G:\Arduino\arduino-nightly\hardware\arduino\avr
Using core 'arduino' from platform in folder: G:\Arduino\arduino-nightly\hardware\arduino\avr
Detecting libraries used...
"G:\Arduino\arduino-nightly\hardware\tools\avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega2560 -DF_CPU=16000000L -DARDUINO=10813 -DARDUINO_AVR_MEGA2560 -DARDUINO_ARCH_AVR "-IG:\Arduino\arduino-nightly\hardware\arduino\avr\cores\arduino" "-IG:\Arduino\arduino-nightly\hardware\arduino\avr\variants\mega" "g:\temp\arduino_build_568261\sketch\RTC_4.ino.cpp" -o nul
Alternatives for SBWire.h: [[email protected]]
ResolveLibrary(SBWire.h)
-> candidates: [[email protected]]
"G:\Arduino\arduino-nightly\hardware\tools\avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega2560 -DF_CPU=16000000L -DARDUINO=10813 -DARDUINO_AVR_MEGA2560 -DARDUINO_ARCH_AVR "-IG:\Arduino\arduino-nightly\hardware\arduino\avr\cores\arduino" "-IG:\Arduino\arduino-nightly\hardware\arduino\avr\variants\mega" "-IG:\Arduino\arduino-nightly\libraries\SBWIRE-Master\src" "g:\temp\arduino_build_568261\sketch\RTC_4.ino.cpp" -o nul
Alternatives for RTClib.h: [[email protected] [email protected]]
ResolveLibrary(RTClib.h)
-> candidates: [[email protected] [email protected]]
"G:\Arduino\arduino-nightly\hardware\tools\avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega2560 -DF_CPU=16000000L -DARDUINO=10813 -DARDUINO_AVR_MEGA2560 -DARDUINO_ARCH_AVR "-IG:\Arduino\arduino-nightly\hardware\arduino\avr\cores\arduino" "-IG:\Arduino\arduino-nightly\hardware\arduino\avr\variants\mega" "-IG:\Arduino\arduino-nightly\libraries\SBWIRE-Master\src" "-IC:\Users\Utilisateur\Documents\Arduino\libraries\RTClib" "g:\temp\arduino_build_568261\sketch\RTC_4.ino.cpp" -o nul
Using cached library dependencies for file: G:\Arduino\arduino-nightly\libraries\SBWIRE-Master\src\SBWire.cpp
Using cached library dependencies for file: G:\Arduino\arduino-nightly\libraries\SBWIRE-Master\src\utility\twi.c
Using cached library dependencies for file: C:\Users\Utilisateur\Documents\Arduino\libraries\RTClib\RTClib.cpp
Alternatives for Wire.h: [[email protected]]
ResolveLibrary(Wire.h)
-> candidates: [[email protected]]
Using cached library dependencies for file: G:\Arduino\arduino-nightly\hardware\arduino\avr\libraries\Wire\src\Wire.cpp
Using cached library dependencies for file: G:\Arduino\arduino-nightly\hardware\arduino\avr\libraries\Wire\src\utility\twi.c
Generating function prototypes...
"G:\Arduino\arduino-nightly\hardware\tools\avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega2560 -DF_CPU=16000000L -DARDUINO=10813 -DARDUINO_AVR_MEGA2560 -DARDUINO_ARCH_AVR "-IG:\Arduino\arduino-nightly\hardware\arduino\avr\cores\arduino" "-IG:\Arduino\arduino-nightly\hardware\arduino\avr\variants\mega" "-IG:\Arduino\arduino-nightly\libraries\SBWIRE-Master\src" "-IC:\Users\Utilisateur\Documents\Arduino\libraries\RTClib" "-IG:\Arduino\arduino-nightly\hardware\arduino\avr\libraries\Wire\src" "g:\temp\arduino_build_568261\sketch\RTC_4.ino.cpp" -o "g:\temp\arduino_build_568261\preproc\ctags_target_for_gcc_minus_e.cpp"
"G:\Arduino\arduino-nightly\tools-builder\ctags\5.8-arduino11/ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives "g:\temp\arduino_build_568261\preproc\ctags_target_for_gcc_minus_e.cpp"
Compiling sketch...
"G:\Arduino\arduino-nightly\hardware\tools\avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega2560 -DF_CPU=16000000L -DARDUINO=10813 -DARDUINO_AVR_MEGA2560 -DARDUINO_ARCH_AVR "-IG:\Arduino\arduino-nightly\hardware\arduino\avr\cores\arduino" "-IG:\Arduino\arduino-nightly\hardware\arduino\avr\variants\mega" "-IG:\Arduino\arduino-nightly\libraries\SBWIRE-Master\src" "-IC:\Users\Utilisateur\Documents\Arduino\libraries\RTClib" "-IG:\Arduino\arduino-nightly\hardware\arduino\avr\libraries\Wire\src" "g:\temp\arduino_build_568261\sketch\RTC_4.ino.cpp" -o "g:\temp\arduino_build_568261\sketch\RTC_4.ino.cpp.o"
Compiling libraries...
Compiling library "SBWIRE-Master"
Using previously compiled file: g:\temp\arduino_build_568261\libraries\SBWIRE-Master\SBWire.cpp.o
Using previously compiled file: g:\temp\arduino_build_568261\libraries\SBWIRE-Master\utility\twi.c.o
Compiling library "RTClib"
Using previously compiled file: g:\temp\arduino_build_568261\libraries\RTClib\RTClib.cpp.o
Compiling library "Wire"
Using previously compiled file: g:\temp\arduino_build_568261\libraries\Wire\Wire.cpp.o
Using previously compiled file: g:\temp\arduino_build_568261\libraries\Wire\utility\twi.c.o
Compiling core...
Using precompiled core: g:\temp\arduino_cache_781909\core\core_arduino_avr_mega_cpu_atmega2560_67f481c3a5b3f22b3e6bf34f2c5baee4.a
Linking everything together...
"G:\Arduino\arduino-nightly\hardware\tools\avr/bin/avr-gcc" -w -Os -g -flto -fuse-linker-plugin -Wl,--gc-sections,--relax -mmcu=atmega2560 -o "g:\temp\arduino_build_568261/RTC_4.ino.elf" "g:\temp\arduino_build_568261\sketch\RTC_4.ino.cpp.o" "g:\temp\arduino_build_568261\libraries\SBWIRE-Master\SBWire.cpp.o" "g:\temp\arduino_build_568261\libraries\SBWIRE-Master\utility\twi.c.o" "g:\temp\arduino_build_568261\libraries\RTClib\RTClib.cpp.o" "g:\temp\arduino_build_568261\libraries\Wire\Wire.cpp.o" "g:\temp\arduino_build_568261\libraries\Wire\utility\twi.c.o" "g:\temp\arduino_build_568261/..\arduino_cache_781909\core\core_arduino_avr_mega_cpu_atmega2560_67f481c3a5b3f22b3e6bf34f2c5baee4.a" "-Lg:\temp\arduino_build_568261" -lm
g:\temp\arduino_build_568261\libraries\Wire\Wire.cpp.o (symbol from plugin): In function `TwoWire::available()':

(.text+0x0): multiple definition of `TwoWire::available()'