I2CCC32XX_HWAttrsV1 Struct Reference

I2CCC32XX Hardware attributes. More...

#include <I2CCC32XX.h>

Data Fields
I2C_BASE_HWATTRS uint32_t	sclTimeout
uint16_t	clkPin
uint16_t	dataPin

Detailed Description

I2CCC32XX Hardware attributes.

The baseAddr and intNum fields define the base address and interrupt number of the I2C peripheral. These values are used by driverlib APIs and therefore must be populated by driverlib macro definitions. These definitions are found in the header files:

• inc/hw_memmap.h
• inc/hw_ints.h

intPriority is the I2C peripheral's interrupt priority. This driver uses the ti.dpl interface instead of making OS calls directly, and the corresponding HwiP port handles the interrupt priority in an OS-specific way. For example, in the case of the TI-RTOS kernel port, the intPriority is passed unmodified to Hwi_create() provided by the ti.sysbios.family.arm.m3.Hwi module; so the documentation for the ti.sysbios.family.arm.m3.Hwi module should be referenced for a description of usage of priority.

clkPin and dataPin define the pin multiplexing to be used for the SCL and SDA pins, respectively. Macro values defined in this header file should be used for these fields.

A sample structure is shown below:

const I2CCC32XX_HWAttrsV1 i2cCC32XXHWAttrs[] = {
    {
        .baseAddr = I2CA0_BASE,
        .intNum = INT_I2CA0,
        .intPriority = (~0),
        .clkPin = I2CCC32XX_PIN_01_I2C_SCL,
        .dataPin = I2CCC32XX_PIN_02_I2C_SDA,
    }
};

Field Documentation

sclTimeout

I2C_BASE_HWATTRS uint32_t I2CCC32XX_HWAttrsV1::sclTimeout

SCL low clock timeout specified in I2C clocks

clkPin

uint16_t I2CCC32XX_HWAttrsV1::clkPin

dataPin

uint16_t I2CCC32XX_HWAttrsV1::dataPin

---

The documentation for this struct was generated from the following file:

• I2CCC32XX.h