UARTEUSCIA_HWAttrs Struct Reference

UARTEUSCIA Hardware attributes. More...

#include <UARTEUSCIA.h>

Collaboration diagram for UARTEUSCIA_HWAttrs:

Data Fields
unsigned int	baseAddr
uint8_t	clockSource
uint32_t	bitOrder
unsigned int	numBaudrateEntries
UARTEUSCIA_BaudrateConfig const *	baudrateLUT

Detailed Description

UARTEUSCIA Hardware attributes.

These fields are used by driverlib APIs and therefore must be populated by driverlib macro definitions. For MSP430Ware these definitions are found in:

• inc/hw_memmap.h
• usci_a_uart.h

A sample structure is shown below:

const UARTEUSCIA_BaudrateConfig uartUSCIABaudrates[] = {
 // Baudrate, input clock (Hz), UCBRx, UCBRFx, UCBRSx, oversampling
    {
        .outputBaudrate = 115200,
        .inputClockFreq = 8192000,
        .prescalar = 4,
        .hwRegUCBRFx = 7,
        .hwRegUCBRSx = 0,
        .oversampling = 1
    },
    {9600,    8192000,          53,    5,      0,      1},
    {9600,    32768,            3,     0,      3,      0},
};

const UARTEUSCIA_HWAttrs uartUSCIAHWAttrs[] = {
    {
        .baseAddr = EUSCI_A0_BASE,
        .clockSource = EUSCI_A_UART_CLOCKSOURCE_SMCLK,
        .bitOrder = EUSCI_A_UART_LSB_FIRST,
        .numBaudrateEntries = sizeof(uartUSCIABaudrates/UARTEUSCIA_BaudrateConfig),
        .baudrateLUT = uartUSCIABaudrates
    },
    {
        .baseAddr = EUSCI_A1_BASE,
        .clockSource = EUSCI_A_UART_CLOCKSOURCE_SMCLK,
        .bitOrder  = EUSCI_A_UART_LSB_FIRST,
        .numBaudrateEntries = sizeof(uartUSCIABaudrates/UARTEUSCIA_BaudrateConfig),
        .baudrateLUT = uartUSCIABaudrates
    },
};

Field Documentation

unsigned int UARTEUSCIA_HWAttrs::baseAddr

EUSCI_A_UART Peripheral's base address

uint8_t UARTEUSCIA_HWAttrs::clockSource

EUSCI_A_UART Clock source EUSCI_A_UART Bit order

uint32_t UARTEUSCIA_HWAttrs::bitOrder

Number of UARTEUSCIA_BaudrateConfig entries

unsigned int UARTEUSCIA_HWAttrs::numBaudrateEntries

Pointer to a table of possible UARTEUSCIA_BaudrateConfig entries

UARTEUSCIA_BaudrateConfig const* UARTEUSCIA_HWAttrs::baudrateLUT

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

• UARTEUSCIA.h