UART Function Documentation
Sys_UART_GPIOConfig
void Sys_UART_GPIOConfig(const UART_Type * uart, uint32_t cfg, uint32_t pad_tx, uint32_t pad_rx)
Location: uart.h:52
Parameters
Direction | Name | Description |
---|---|---|
in |
uart |
Pointer to the UART instance |
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 UART interface with // low-pass filter disabled, 8X drive-strength, and 1 kOhm pull-up resistors Sys_UART_GPIOConfig(UART, (GPIO_LPF_DISABLE | GPIO_1K_PULL_UP | |
Sys_UART_Config
void Sys_UART_Config(UART_Type * uart, uint32_t uart_clk_hz, uint32_t baud, uint32_t config)
Location: uart.h:80
Parameters
Direction | Name | Description |
---|---|---|
in |
uart |
Pointer to the UART instance |
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 a 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(UART, 8000000, 9600, (UART_TX_DMA_ENABLE | UART_RX_DMA_ENABLE | UART_TX_START_INT_ENABLE | UART_RX_INT_ENABLE | UART_OVERRUN_INT_ENABLE)); |