EFM32 Happy Gecko Software Documentation
efm32hg-doc-5.1.2
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Universal synchronous/asynchronous receiver/transmitter (USART/UART) Peripheral API.
Copyright 2016 Silicon Laboratories, Inc. http://www.silabs.com
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Definition in file em_usart.c.
Go to the source code of this file.
Functions | |
void | USART_BaudrateAsyncSet (USART_TypeDef *usart, uint32_t refFreq, uint32_t baudrate, USART_OVS_TypeDef ovs) |
Configure USART/UART operating in asynchronous mode to use a given baudrate (or as close as possible to specified baudrate). More... | |
uint32_t | USART_BaudrateCalc (uint32_t refFreq, uint32_t clkdiv, bool syncmode, USART_OVS_TypeDef ovs) |
Calculate baudrate for USART/UART given reference frequency, clock division and oversampling rate (if async mode). More... | |
uint32_t | USART_BaudrateGet (USART_TypeDef *usart) |
Get current baudrate for USART/UART. More... | |
void | USART_BaudrateSyncSet (USART_TypeDef *usart, uint32_t refFreq, uint32_t baudrate) |
Configure USART operating in synchronous mode to use a given baudrate (or as close as possible to specified baudrate). More... | |
void | USART_Enable (USART_TypeDef *usart, USART_Enable_TypeDef enable) |
Enable/disable USART/UART receiver and/or transmitter. More... | |
void | USART_InitAsync (USART_TypeDef *usart, const USART_InitAsync_TypeDef *init) |
Init USART/UART for normal asynchronous mode. More... | |
void | USART_InitI2s (USART_TypeDef *usart, USART_InitI2s_TypeDef *init) |
Init USART for I2S mode. More... | |
void | USART_InitPrsTrigger (USART_TypeDef *usart, const USART_PrsTriggerInit_TypeDef *init) |
Initialize automatic transmissions using PRS channel as trigger. More... | |
void | USART_InitSync (USART_TypeDef *usart, const USART_InitSync_TypeDef *init) |
Init USART for synchronous mode. More... | |
void | USART_Reset (USART_TypeDef *usart) |
Reset USART/UART to same state as after a HW reset. More... | |
uint8_t | USART_Rx (USART_TypeDef *usart) |
Receive one 4-8 bit frame, (or part of 10-16 bit frame). More... | |
uint16_t | USART_RxDouble (USART_TypeDef *usart) |
Receive two 4-8 bit frames, or one 10-16 bit frame. More... | |
uint32_t | USART_RxDoubleExt (USART_TypeDef *usart) |
Receive two 4-9 bit frames, or one 10-16 bit frame with extended information. More... | |
uint16_t | USART_RxExt (USART_TypeDef *usart) |
Receive one 4-9 bit frame, (or part of 10-16 bit frame) with extended information. More... | |
uint8_t | USART_SpiTransfer (USART_TypeDef *usart, uint8_t data) |
Perform one 8 bit frame SPI transfer. More... | |
void | USART_Tx (USART_TypeDef *usart, uint8_t data) |
Transmit one 4-9 bit frame. More... | |
void | USART_TxDouble (USART_TypeDef *usart, uint16_t data) |
Transmit two 4-9 bit frames, or one 10-16 bit frame. More... | |
void | USART_TxDoubleExt (USART_TypeDef *usart, uint32_t data) |
Transmit two 4-9 bit frames, or one 10-16 bit frame with extended control. More... | |
void | USART_TxExt (USART_TypeDef *usart, uint16_t data) |
Transmit one 4-9 bit frame with extended control. More... | |
void | USARTn_InitIrDA (USART_TypeDef *usart, const USART_InitIrDA_TypeDef *init) |
Init USART for asynchronous IrDA mode. More... | |