[Sloeber] Wire vs. HWire on I2C2 (I2C1) - Wire.h

[Pito]

I am trying to use an ADS1110 library https://github.com/nadavmatalon/ADS1110 I found with BPill (under libmaple F1 latest).
The original works with "Wire.h" library.
I want to use HW I2C fastest on I2C2.
I've spent a night playing with it, with no success..

I've tried so far:

1. Using latest libmaple F1 (there is the Wire library, it does not contain HardWire.h)
2. I include "Wire.h" in the sketch, and/or in ADS1110.h and and/or in ADS1110.cpp
3. With this (and replaced all Wire.xx with HWire.xx in the library and elsewhere) I get "'HWire' was not declared in this scope" errors

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#include "Arduino.h"
#include "Wire.h"
// HardWire HWire(2, I2C_FAST_MODE); // I2C2
#include "ADS1110.h"
HardWire HWire(2, I2C_FAST_MODE); // I2C2
..

4. With this (and replaced all HWire.xx with Wire.xx in the library and elsewhere)

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HardWire Wire(2, I2C_FAST_MODE); // I2C2

I get "..STM32F1\libraries\Wire/Wire.cpp:58: multiple definition of `Wire' " error.

How to proceed in order to use (or modify) a library for HW I2C2, plz?

[RogerClark]

Wire is now Hardwire

This was discussed about a month ago, and the consensus was to change Wire to = HardWire

The old "Wire" is now SoftWire

[Pito]

Ok, so I include Wire.h, and do

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HardWire HWire(2, I2C_FAST_MODE); // I2C2

and I have to rename the Wire.xx functions in ADS1110 library to HWire.xx.
Is that correct?

Update: it only compiles (and works) here (Sloeber) when I set as above in mysketch.ino and in the ADS1110.cpp I do

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#define Wire HWire
#include "ADS1110.h"

ADS1110.h includes Wire.h

When I replace Wire.xx with HWire.xx manually in the ADS1110.cpp it shows error "HWire was not declared..".


To recap:
mysketch.ino :

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#include "Arduino.h"
#include "ADS1110.h"
HardWire HWire(2, I2C_FAST_MODE); // I2C2

ADS1110.h :

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#ifndef ADS1110_h
#define ADS1110_h
#include "Wire.h"

ADS1110.cpp :

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#define Wire HWire
#include "ADS1110.h"

Frankly, I do not understand that construct which works here..
But why we cannot simply do

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HardWire Wire(2, I2C_FAST_MODE); // I2C2

?
Update: because of this in Wire.cpp

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HardWire Wire(1);

?

[stevestrong]

Sloeber again...

[RogerClark]

@pito

The HardWire object / class no longer exists

The code was copied into the Wire class

So Wire = HardWire