I will restate what my problem is because I think we are drifting off course. I need to be able to tell the Adafruit libraries which pins to use for I2C. How do I do this??
#Adafruit libraries and I2C usage
obtuse vault
@lone grail You are not understanding what I am saying. 😦
I will restate what my problem is because I think we are drifting off course.
I need to be able to tell the Adafruit libraries which pins to use for I2C.
How do I do this??
This is an exerpt from my header file that translates Raspberry Pi pin names to Arduino Portenta pins.
/*
*
* Raspberry Pi Portenta C33 / Raspberry Pi Aliases
*/
#define GPIO_02 29 // Does NOT function as a GPIO
#define SDA1 GPIO_02
#define SPI3_MOSI GPIO_02
#define GPIO_03 40
#define SCL1 GPIO_03
#define SPI3_SCLK GPIO_03```#include "Wire.h"
/*
*
* Raspberry Pi Portenta C33 / Raspberry Pi Aliases
*/
#define GPIO_02 29 // Does NOT function as a GPIO
#define SDA1 GPIO_02
#define SPI3_MOSI GPIO_02
#define GPIO_03 40
#define SCL1 GPIO_03
#define SPI3_SCLK GPIO_03
void setup (void) {
Wire.begin(SDA1, SCL1);
}```
```arduino
E:\Arduino\SketchBook\Arduino_Portenta_C33\Robot_Smart_Home_Controller\Wire_Library_Test\Wire_Library_Test.ino: In function 'void setup()':
E:\Arduino\SketchBook\Arduino_Portenta_C33\Robot_Smart_Home_Controller\Wire_Library_Test\Wire_Library_Test.ino:17:26: error: no matching function for call to 'TwoWire::begin(int, int)'
Wire.begin(SDA1, SCL1);
^
In file included from E:\Arduino\SketchBook\Arduino_Portenta_C33\Robot_Smart_Home_Controller\Wire_Library_Test\Wire_Library_Test.ino:1:0:
C:\Users\robot\AppData\Local\Arduino15\packages\arduino\hardware\renesas_portenta\1.1.0\libraries\Wire/Wire.h:100:10: note: candidate: virtual void TwoWire::begin()
void begin();
^~~~~
C:\Users\robot\AppData\Local\Arduino15\packages\arduino\hardware\renesas_portenta\1.1.0\libraries\Wire/Wire.h:100:10: note: candidate expects 0 arguments, 2 provided
C:\Users\robot\AppData\Local\Arduino15\packages\arduino\hardware\renesas_portenta\1.1.0\libraries\Wire/Wire.h:101:10: note: candidate: virtual void TwoWire::begin(uint8_t)
void begin(uint8_t);
^~~~~
C:\Users\robot\AppData\Local\Arduino15\packages\arduino\hardware\renesas_portenta\1.1.0\libraries\Wire/Wire.h:101:10: note: candidate expects 1 argument, 2 provided
C:\Users\robot\AppData\Local\Arduino15\packages\arduino\hardware\renesas_portenta\1.1.0\libraries\Wire/Wire.h:102:10: note: candidate: void TwoWire::begin(uint16_t)
void begin(uint16_t);
^~~~~
C:\Users\robot\AppData\Local\Arduino15\packages\arduino\hardware\renesas_portenta\1.1.0\libraries\Wire/Wire.h:102:10: note: candidate expects 1 argument, 2 provided
C:\Users\robot\AppData\Local\Arduino15\packages\arduino\hardware\renesas_portenta\1.1.0\libraries\Wire/Wire.h:103:10: note: candidate: void TwoWire::begin(int)
void begin(int);
^~~~~
C:\Users\robot\AppData\Local\Arduino15\packages\arduino\hardware\renesas_portenta\1.1.0\libraries\Wire/Wire.h:103:10: note: candidate expects 1 argument, 2 provided
exit status 1
Compilation error: no matching function for call to 'TwoWire::begin(int, int)'```This is not working.This code does not work```arduino
#include "Wire.h"
/*
*
- Raspberry Pi Portenta C33 / Raspberry Pi Aliases
*/
#define GPIO_02 29 // Does NOT function as a GPIO
#define SDA1 GPIO_02
#define SPI3_MOSI GPIO_02
#define GPIO_03 40
#define SCL1 GPIO_03
#define SPI3_SCLK GPIO_03
void setup (void) {
Wire.begin(SDA1, SCL1);
}```
Here is an exerpt from the header file that translates Raspberry Pi pin names to Arduino Portenta pins:```arduino
/*
*
- Raspberry Pi Portenta C33 / Raspberry Pi Aliases
*/
#define GPIO_02 29 // Does NOT function as a GPIO
#define SDA1 GPIO_02
#define SPI3_MOSI GPIO_02
#define GPIO_03 40
#define SCL1 GPIO_03
#define SPI3_SCLK GPIO_03```
Here are the errors I get:```arduino
E:\Arduino\SketchBook\Arduino_Portenta_C33\Robot_Smart_Home_Controller\Wire_Library_Test\Wire_Library_Test.ino: In function 'void setup()':
E:\Arduino\SketchBook\Arduino_Portenta_C33\Robot_Smart_Home_Controller\Wire_Library_Test\Wire_Library_Test.ino:17:26: error: no matching function for call to 'TwoWire::begin(int, int)'
Wire.begin(SDA1, SCL1);
^
In file included from E:\Arduino\SketchBook\Arduino_Portenta_C33\Robot_Smart_Home_Controller\Wire_Library_Test\Wire_Library_Test.ino:1:0:
C:\Users\robot\AppData\Local\Arduino15\packages\arduino\hardware\renesas_portenta\1.1.0\libraries\Wire/Wire.h:100:10: note: candidate: virtual void TwoWire::begin()
void begin();
^~~~~
C:\Users\robot\AppData\Local\Arduino15\packages\arduino\hardware\renesas_portenta\1.1.0\libraries\Wire/Wire.h:100:10: note: candidate expects 0 arguments, 2 provided
C:\Users\robot\AppData\Local\Arduino15\packages\arduino\hardware\renesas_portenta\1.1.0\libraries\Wire/Wire.h:101:10: note: candidate: virtual void TwoWire::begin(uint8_t)
void begin(uint8_t);
^~~~~
C:\Users\robot\AppData\Local\Arduino15\packages\arduino\hardware\renesas_portenta\1.1.0\libraries\Wire/Wire.h:101:10: note: candidate expects 1 argument, 2 provided
C:\Users\robot\AppData\Local\Arduino15\packages\arduino\hardware\renesas_portenta\1.1.0\libraries\Wire/Wire.h:102:10: note: candidate: void TwoWire::begin(uint16_t)
void begin(uint16_t);
^~~~~
C:\Users\robot\AppData\Local\Arduino15\packages\arduino\hardware\renesas_portenta\1.1.0\libraries\Wire/Wire.h:102:10: note: candidate expects 1 argument, 2 provided
C:\Users\robot\AppData\Local\Arduino15\packages\arduino\hardware\renesas_portenta\1.1.0\libraries\Wire/Wire.h:103:10: note: candidate: void TwoWire::begin(int)
void begin(int);
^~~~~
C:\Users\robot\AppData\Local\Arduino15\packages\arduino\hardware\renesas_portenta\1.1.0\libraries\Wire/Wire.h:103:10: note: candidate expects 1 argument, 2 provided
exit status 1
Compilation error: no matching function for call to 'TwoWire::begin(int, int)'```
I need to back away from this for a while because I am getting frustrated.
latent parrot
SDA1 and SCL1, if I recall correctly, are accessed by calling Wire1.begin();