SPICC26XX_HWAttrs Struct Reference

SPICC26XXDMA Hardware attributes. More...

#include <SPICC26XXDMA.h>

Data Fields
uint32_t	baseAddr
uint8_t	intNum
uint8_t	intPriority
	SPI CC26XXDMA Peripheral's interrupt priority. More...
Power_Resource	powerMngrId
uint16_t	defaultTxBufValue
uint32_t	rxChannelBitMask
uint32_t	txChannelBitMask
PIN_Id	mosiPin
PIN_Id	misoPin
PIN_Id	clkPin
PIN_Id	csnPin

Detailed Description

SPICC26XXDMA Hardware attributes.

These fields are used by driverlib APIs and therefore must be populated by driverlib macro definitions. For CC26xxWare these definitions are found in:

• inc/hw_memmap.h
• inc/hw_ints.h
• driverlib/udma.h

A sample structure is shown below:

const SPICC26XXDMA_HWAttrs spiCC26XXDMAobjects[] = {
    {
        .baseAddr = SSI0_BASE,
        .intNum = INT_SPI0,
        .intPriority = (~0),
        .powerMngrId = PERIPH_SPI0,
        .defaultTxBufValue = 0,
        .rxChannelBitMask = UDMA_CHAN_SPI0_RX,
        .txChannelBitMask = UDMA_CHAN_SPI0_TX,
        .mosiPin = Board_SPI0_MISO,
        .misoPin = Board_SPI0_MOSI,
        .clkPin = Board_SPI0_CLK,
        .csnPin = Board_SPI0_CSN
    },
    {
        .baseAddr = SSI1_BASE,
        .intNum = INT_SPI1,
        .intPriority = (~0),
        .powerMngrId = PERIPH_SPI1,
        .defaultTxBufValue = 0,
        .rxChannelBitMask = UDMA_CHAN_SPI1_RX,
        .txChannelBitMask = UDMA_CHAN_SPI1_TX,
        .mosiPin = Board_SPI1_MISO,
        .misoPin = Board_SPI1_MOSI,
        .clkPin = Board_SPI1_CLK,
        .csnPin = Board_SPI1_CSN
    },
};

Field Documentation

uint32_t SPICC26XX_HWAttrs::baseAddr

SPI Peripheral's base address

uint8_t SPICC26XX_HWAttrs::intNum

SPI CC26XXDMA Peripheral's interrupt vector

uint8_t SPICC26XX_HWAttrs::intPriority

SPI CC26XXDMA Peripheral's interrupt priority.

The CC26xx uses three of the priority bits, meaning ~0 has the same effect as (7 << 5). (7 << 5) will apply the lowest priority. (0 << 5) will apply the highest priority.

Power_Resource SPICC26XX_HWAttrs::powerMngrId

SPI Peripheral's power manager ID

uint16_t SPICC26XX_HWAttrs::defaultTxBufValue

Default TX value if txBuf == NULL

uint32_t SPICC26XX_HWAttrs::rxChannelBitMask

uDMA controlTable channel index

uint32_t SPICC26XX_HWAttrs::txChannelBitMask

uDMA controlTable channel index SPI MOSI pin

PIN_Id SPICC26XX_HWAttrs::mosiPin

SPI MISO pin

PIN_Id SPICC26XX_HWAttrs::misoPin

SPI CLK pin

PIN_Id SPICC26XX_HWAttrs::clkPin

SPI CSN pin

PIN_Id SPICC26XX_HWAttrs::csnPin

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

• SPICC26XXDMA.h