uart_conf_t Struct Reference

UART device configuration. More...

Detailed Description

UART device configuration.

UART configuration data.

UART module configuration options.

Structure for UART configuration data.

UART configuration structure type.

     The frequency f() of the clock `gclk_src` must fulfill the condition

         16 * baud < f(gclk_src) ≤ 2²⁰ * baud

     in Asynchronous Arithmetic mode and

         16 * baud < f(gclk_src) ≤ 2¹⁷ * baud

     in Asynchronous Fractional mode

Definition at line 166 of file periph_cpu.h.

#include <periph_cpu.h>

Data Fields
cc2538_uart_t *	dev
	pointer to the used UART device More...
gpio_t	rx_pin
	pin used for RX More...
gpio_t	tx_pin
	pin used for TX More...
void *	dev
	UART, USART or LEUART device used. More...
uint32_t	loc
	location of UART pins
CMU_Clock_TypeDef	cmu
	the device CMU channel
IRQn_Type	irq
	the devices base IRQ channel
gpio_t	txd
	GPIO used as TxD pin.
gpio_t	rxd
	GPIO used as RxD pin.
uint32_t	addr
	UART control register address.
gpio_t	rx
	RX pin.
gpio_t	tx
	TX pin.
plic_source	isr_num
	ISR source number.
uint32_t	freq
	Module clock frequency, usually CLOCK_CORECLOCK or CLOCK_BUSCLOCK.
gpio_t	pin_rx
	RX pin, GPIO_UNDEF disables RX.
gpio_t	pin_tx
	TX pin.
IRQn_Type	irqn
	IRQ number for this module. More...
volatile uint32_t *	scgc_addr
	Clock enable register, in SIM module.
uint8_t	scgc_bit
	Clock enable bit, within the register.
uart_mode_t	mode
	UART mode: data bits, parity, stop bits.
uart_type_t	type
	Hardware module type (KINETIS_UART or KINETIS_LPUART)
LPC_UART_TypeDef *	dev
	pointer to the UART device
uint8_t	irq_rx
	RX IRQ number.
uint8_t	clk_offset
	The offset of the periph in the clk sel.
uint8_t	pinsel
	PINSEL# of the RX and TX pin.
uint8_t	pinsel_shift
	TX/RX bitshift of the PINSEL# register.
uint8_t	pinsel_af
	Alternate function of the PINSEL# register.
lpc23xx_uart_t *	dev
	pointer to the UART device
uint8_t	irq_prio_rx
	priority of the RX IRQ
uint8_t	pinsel_rx
	PINSEL# of the RX pin
uint8_t	pinsel_tx
	PINSEL# of the TX pin
uint32_t	pinsel_msk_rx
	RX PINSEL Mask
uint32_t	pinsel_msk_tx
	TX PINSEL Mask
volatile unsigned int *	base
	UART device base register address.
uint32_t	clock
	Peripheral clock frequency.
volatile unsigned int *	rx_mux_reg
	Address of RX mux register.
volatile unsigned int *	tx_mux_reg
	Address of TX mux register.
gpio_af_t	rx_af
	alternate function for RX pin
gpio_af_t	tx_af
	alternate function for TX pin
uint32_t	vector
	vector number
NRF_UARTE_Type *	dev
	UART with EasyDMA device base register address.
uint8_t	irqn
	IRQ channel. More...
SercomUsart *	dev
	pointer to the used UART device
gpio_mux_t	mux
	alternative function for pins More...
uart_rxpad_t	rx_pad
	pad selection for RX line
uart_txpad_t	tx_pad
	pad selection for TX line
uart_flag_t	flags
	set optional SERCOM flags
uint8_t	gclk_src
	GCLK source which supplys SERCOM.
Uart *	dev
	U(S)ART device used.
uint8_t	pmc_id
	bit in the PMC register of the device
USART_TypeDef *	dev
	UART device base register address.
uint32_t	rcc_mask
	bit in clock enable register
uint8_t	bus
	APB bus.

Field Documentation

dev [1/2]

void * uart_conf_t::dev

pointer to the used UART device

Pointer to module hardware registers.

Definition at line 167 of file periph_cpu.h.

dev [2/2]

void* uart_conf_t::dev

UART, USART or LEUART device used.

Pointer to module hardware registers.

Definition at line 423 of file periph_cpu.h.

irqn [1/2]

uint8_t uart_conf_t::irqn

IRQ channel.

interrupt number of the device

Definition at line 201 of file periph_cpu.h.

irqn [2/2]

uint8_t uart_conf_t::irqn

IRQ number for this module.

IRQ channel.

interrupt number of the device

Definition at line 528 of file periph_cpu.h.

mux

gpio_mux_t uart_conf_t::mux

alternative function for pins

MUX used for pins.

Definition at line 234 of file periph_cpu_common.h.

rx_pin

gpio_t uart_conf_t::rx_pin

pin used for RX

RX pin.

Definition at line 168 of file periph_cpu.h.

tx_pin

gpio_t uart_conf_t::tx_pin

pin used for TX

TX pin.

Definition at line 169 of file periph_cpu.h.

---

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

• cpu/cc2538/include/periph_cpu.h
• cpu/mips_pic32_common/include/periph_cpu_common.h