I2C communication TM4C129

[dilipaldar 0]

I am trying to use the I2C communication using SDA(1)-SCL(1) and also by using SDA(2)-SCL(2) with library wire.h, but it is not working. wire1 or wire2 are also not available, how to use the I2C with SDA(2)-SCL(2) using  energia.

Following is the program tried for the for SDA(0)-SCL(0)  but it is also not working.

 

#include <Wire.h>

 

void setup() {

  Wire.begin();        // join i2c bus (address optional for master)

  Serial.begin(9600);  // start serial for output

}

 

void loop() {

  Wire.requestFrom(8, 6);    // request 6 bytes from slave device #8

 

  while (Wire.available()) { // slave may send less than requested

    char c = Wire.read(); // receive a byte as character

    Serial.print©;         // print the character

  }

 

  delay(500);

}

 

Thanks in advance.

[energia 485]

You can use Wire.setModule(x) by using 0 to 3 to select the port. By default it is on PN4/PN5. The current implementation does not support multiple instances of the Wire library.

Also make sure that you have pullups on the SDA/SCL line.

    {GPIO_PB2_I2C0SCL, GPIO_PB3_I2C0SDA},
    {GPIO_PN5_I2C2SCL, GPIO_PN4_I2C2SDA},
    {GPIO_PA2_I2C8SCL, GPIO_PA3_I2C8SDA},
    {GPIO_PD0_I2C7SCL, GPIO_PD1_I2C7SDA}