// // The I2C0 peripheral must be enabled before use. // SysCtlPeripheralEnable(SYSCTL_PERIPH_I2C0);
// // For this example I2C0 is used with PortB[3:2]. The actual port and // pins used may be different on your part, consult the data sheet for // more information. GPIO port B needs to be enabled so these pins can // be used. // TODO: change this to whichever GPIO port you are using. // SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
// // Configure the pin muxing for I2C0 functions on port B2 and B3. // This step is not necessary if your part does not support pin muxing. // TODO: change this to select the port/pin you are using. // GPIOPinConfigure(GPIO_PB2_I2C0SCL); GPIOPinConfigure(GPIO_PB3_I2C0SDA);
// // Select the I2C function for these pins. This function will also // configure the GPIO pins pins for I2C operation, setting them to // open-drain operation with weak pull-ups. Consult the data sheet // to see which functions are allocated per pin. // TODO: change this to select the port/pin you are using. // GPIOPinTypeI2CSCL(GPIO_PORTB_BASE, GPIO_PIN_2); GPIOPinTypeI2C(GPIO_PORTB_BASE, GPIO_PIN_3); |
