## UART Macro Definition Documentation

### UART_PADS_NUM

#define UART_PADS_NUM 1

The number of input GPIO pad configurations for a UART interface (1 per instance)

Location: uart.h:41

### SYS_UART_GPIOCONFIG

#define SYS_UART_GPIOCONFIG Sys_UART_GPIOConfig(UART, (cfg), (pad_tx), (pad_rx))

Macro wrapper for Sys_UART_GPIOConfig().

Configure two GPIOs for the specified UART interface.

Location: uart.h:91

Parameters

Direction | Name | Description
--- | --- | ---
in | cfg | GPIO pin configuration for the UART pads
in | pad_tx | GPIO to use as the UART transmit pad
in | pad_rx | GPIO to use as the UART receive pad

Example Code for SYS_UART_GPIOCONFIG
// Configure GPIOs 5 and 6 for the default UART interface with // low-pass filter disabled, 8X drive-strength, and 1 kOhm pull-up resistors SYS_UART_GPIOCONFIG((GPIO_LPF_DISABLE | GPIO_1K_PULL_UP | GPIO_6X_DRIVE), GPIO5, GPIO6);

### SYS_UART_CONFIG

#define SYS_UART_CONFIG Sys_UART_Config(UART, (uart_clk_hz), (baud), (config))

Macro wrapper for Sys_UART_Config().

Configure and enable a UART interface.

Location: uart.h:107

Parameters

Direction | Name | Description
--- | --- | ---
in | uart_clk_hz | UART clock speed in hertz
in | baud | Baud rate to which UART* is configured
in | config | DMA and interrupt mode enable; use UART_TX_DMA_[ENABLE | DISABLE] UART_RX_DMA_[ENABLE | DISABLE] UART_TX_INT_[ENABLE | DISABLE] UART_RX_INT_[ENABLE | DISABLE] UART_OVERRUN_INT_[ENABLE | DISABLE]

Example Code for SYS_UART_CONFIG
// Enable and Configure the default UART: // - 8 MHz clock speed // - 9600 Hz baud rate // - A TX DMA request is generated when new data is // requested by the UART interface // - An RX DMA request is generated when new data is // received by the UART interface // - Interrupts enabled SYS_UART_CONFIG(8000000, 9600, (UART_TX_DMA_ENABLE | UART_RX_DMA_ENABLE | UART_TX_START_INT_ENABLE | UART_RX_INT_ENABLE | UART_OVERRUN_INT_ENABLE));