This file provides firmware functions to manage the following functionalities of the Universal synchronous asynchronous receiver transmitter (USART): More...
Include dependency graph for stm32f30x_usart.c:
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Macros | |
| #define | CR1_CLEAR_MASK |
| #define | CR2_CLOCK_CLEAR_MASK |
| #define | CR3_CLEAR_MASK ((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE)) |
| #define | IT_MASK ((uint32_t)0x000000FF) |
Functions | |
| void | USART_AddressDetectionConfig (USART_TypeDef *USARTx, uint32_t USART_AddressLength) |
| Configure the the USART Address detection length. More... | |
| void | USART_AutoBaudRateCmd (USART_TypeDef *USARTx, FunctionalState NewState) |
| Enables or disables the Auto Baud Rate. More... | |
| void | USART_AutoBaudRateConfig (USART_TypeDef *USARTx, uint32_t USART_AutoBaudRate) |
| Selects the USART auto baud rate method. More... | |
| void | USART_ClearFlag (USART_TypeDef *USARTx, uint32_t USART_FLAG) |
| Clears the USARTx's pending flags. More... | |
| void | USART_ClearITPendingBit (USART_TypeDef *USARTx, uint32_t USART_IT) |
| Clears the USARTx's interrupt pending bits. More... | |
| void | USART_ClockInit (USART_TypeDef *USARTx, USART_ClockInitTypeDef *USART_ClockInitStruct) |
| Initializes the USARTx peripheral Clock according to the specified parameters in the USART_ClockInitStruct . More... | |
| void | USART_ClockStructInit (USART_ClockInitTypeDef *USART_ClockInitStruct) |
| Fills each USART_ClockInitStruct member with its default value. More... | |
| void | USART_Cmd (USART_TypeDef *USARTx, FunctionalState NewState) |
| Enables or disables the specified USART peripheral. More... | |
| void | USART_DataInvCmd (USART_TypeDef *USARTx, FunctionalState NewState) |
| Enables or disables the binary data inversion. More... | |
| void | USART_DECmd (USART_TypeDef *USARTx, FunctionalState NewState) |
| Enables or disables the USART's DE functionality. More... | |
| void | USART_DeInit (USART_TypeDef *USARTx) |
| Deinitializes the USARTx peripheral registers to their default reset values. More... | |
| void | USART_DEPolarityConfig (USART_TypeDef *USARTx, uint32_t USART_DEPolarity) |
| Configures the USART's DE polarity. More... | |
| void | USART_DirectionModeCmd (USART_TypeDef *USARTx, uint32_t USART_DirectionMode, FunctionalState NewState) |
| Enables or disables the USART's transmitter or receiver. More... | |
| void | USART_DMACmd (USART_TypeDef *USARTx, uint32_t USART_DMAReq, FunctionalState NewState) |
| Enables or disables the USART's DMA interface. More... | |
| void | USART_DMAReceptionErrorConfig (USART_TypeDef *USARTx, uint32_t USART_DMAOnError) |
| Enables or disables the USART's DMA interface when reception error occurs. More... | |
| FlagStatus | USART_GetFlagStatus (USART_TypeDef *USARTx, uint32_t USART_FLAG) |
| Checks whether the specified USART flag is set or not. More... | |
| ITStatus | USART_GetITStatus (USART_TypeDef *USARTx, uint32_t USART_IT) |
| Checks whether the specified USART interrupt has occurred or not. More... | |
| void | USART_HalfDuplexCmd (USART_TypeDef *USARTx, FunctionalState NewState) |
| Enables or disables the USART's Half Duplex communication. More... | |
| void | USART_Init (USART_TypeDef *USARTx, USART_InitTypeDef *USART_InitStruct) |
| Initializes the USARTx peripheral according to the specified parameters in the USART_InitStruct . More... | |
| void | USART_InvPinCmd (USART_TypeDef *USARTx, uint32_t USART_InvPin, FunctionalState NewState) |
| Enables or disables the Pin(s) active level inversion. More... | |
| void | USART_IrDACmd (USART_TypeDef *USARTx, FunctionalState NewState) |
| Enables or disables the USART's IrDA interface. More... | |
| void | USART_IrDAConfig (USART_TypeDef *USARTx, uint32_t USART_IrDAMode) |
| Configures the USART's IrDA interface. More... | |
| void | USART_ITConfig (USART_TypeDef *USARTx, uint32_t USART_IT, FunctionalState NewState) |
| Enables or disables the specified USART interrupts. More... | |
| void | USART_LINBreakDetectLengthConfig (USART_TypeDef *USARTx, uint32_t USART_LINBreakDetectLength) |
| Sets the USART LIN Break detection length. More... | |
| void | USART_LINCmd (USART_TypeDef *USARTx, FunctionalState NewState) |
| Enables or disables the USART's LIN mode. More... | |
| void | USART_MSBFirstCmd (USART_TypeDef *USARTx, FunctionalState NewState) |
| Enables or disables the USART's most significant bit first transmitted/received following the start bit. More... | |
| void | USART_MuteModeCmd (USART_TypeDef *USARTx, FunctionalState NewState) |
| Enables or disables the USART's mute mode. More... | |
| void | USART_MuteModeWakeUpConfig (USART_TypeDef *USARTx, uint32_t USART_WakeUp) |
| Selects the USART WakeUp method from mute mode. More... | |
| void | USART_OneBitMethodCmd (USART_TypeDef *USARTx, FunctionalState NewState) |
| Enables or disables the USART's one bit sampling method. More... | |
| void | USART_OverrunDetectionConfig (USART_TypeDef *USARTx, uint32_t USART_OVRDetection) |
| Enables or disables the USART's Overrun detection. More... | |
| void | USART_OverSampling8Cmd (USART_TypeDef *USARTx, FunctionalState NewState) |
| Enables or disables the USART's 8x oversampling mode. More... | |
| uint16_t | USART_ReceiveData (USART_TypeDef *USARTx) |
| Returns the most recent received data by the USARTx peripheral. More... | |
| void | USART_ReceiverTimeOutCmd (USART_TypeDef *USARTx, FunctionalState NewState) |
| Enables or disables the receiver Time Out feature. More... | |
| void | USART_RequestCmd (USART_TypeDef *USARTx, uint32_t USART_Request, FunctionalState NewState) |
| Enables the specified USART's Request. More... | |
| void | USART_SendData (USART_TypeDef *USARTx, uint16_t Data) |
| Transmits single data through the USARTx peripheral. More... | |
| void | USART_SetAddress (USART_TypeDef *USARTx, uint8_t USART_Address) |
| Sets the address of the USART node. More... | |
| void | USART_SetAutoRetryCount (USART_TypeDef *USARTx, uint8_t USART_AutoCount) |
| Sets the Smart Card number of retries in transmit and receive. More... | |
| void | USART_SetBlockLength (USART_TypeDef *USARTx, uint8_t USART_BlockLength) |
| Sets the Smart Card Block length. More... | |
| void | USART_SetDEAssertionTime (USART_TypeDef *USARTx, uint32_t USART_DEAssertionTime) |
| Sets the specified RS485 DE assertion time. More... | |
| void | USART_SetDEDeassertionTime (USART_TypeDef *USARTx, uint32_t USART_DEDeassertionTime) |
| Sets the specified RS485 DE deassertion time. More... | |
| void | USART_SetGuardTime (USART_TypeDef *USARTx, uint8_t USART_GuardTime) |
| Sets the specified USART guard time. More... | |
| void | USART_SetPrescaler (USART_TypeDef *USARTx, uint8_t USART_Prescaler) |
| Sets the system clock prescaler. More... | |
| void | USART_SetReceiverTimeOut (USART_TypeDef *USARTx, uint32_t USART_ReceiverTimeOut) |
| Sets the receiver Time Out value. More... | |
| void | USART_SmartCardCmd (USART_TypeDef *USARTx, FunctionalState NewState) |
| Enables or disables the USART's Smart Card mode. More... | |
| void | USART_SmartCardNACKCmd (USART_TypeDef *USARTx, FunctionalState NewState) |
| Enables or disables NACK transmission. More... | |
| void | USART_STOPModeCmd (USART_TypeDef *USARTx, FunctionalState NewState) |
| Enables or disables the specified USART peripheral in STOP Mode. More... | |
| void | USART_StopModeWakeUpSourceConfig (USART_TypeDef *USARTx, uint32_t USART_WakeUpSource) |
| Selects the USART WakeUp method form stop mode. More... | |
| void | USART_StructInit (USART_InitTypeDef *USART_InitStruct) |
| Fills each USART_InitStruct member with its default value. More... | |
| void | USART_SWAPPinCmd (USART_TypeDef *USARTx, FunctionalState NewState) |
| Enables or disables the swap Tx/Rx pins. More... | |
Detailed Description
This file provides firmware functions to manage the following functionalities of the Universal synchronous asynchronous receiver transmitter (USART):
- Version
- V1.1.1
- Date
- 04-April-2014
- Initialization and Configuration
- STOP Mode
- AutoBaudRate
- Data transfers
- Multi-Processor Communication
- LIN mode
- Half-duplex mode
- Smartcard mode
- IrDA mode
- RS485 mode
- DMA transfers management
- Interrupts and flags management
===============================================================================
##### How to use this driver #####
===============================================================================
[..]
(#) Enable peripheral clock using RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE)
function for USART1 or using RCC_APB1PeriphClockCmd(RCC_APB1Periph_USARTx, ENABLE)
function for USART2, USART3, UART4 and UART5.
(#) According to the USART mode, enable the GPIO clocks using
RCC_AHBPeriphClockCmd() function. (The I/O can be TX, RX, CTS,
or and SCLK).
(#) Peripheral's alternate function:
(++) Connect the pin to the desired peripherals' Alternate
Function (AF) using GPIO_PinAFConfig() function.
(++) Configure the desired pin in alternate function by:
GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AF.
(++) Select the type, pull-up/pull-down and output speed via
GPIO_PuPd, GPIO_OType and GPIO_Speed members.
(++) Call GPIO_Init() function.
(#) Program the Baud Rate, Word Length , Stop Bit, Parity, Hardware
flow control and Mode(Receiver/Transmitter) using the SPI_Init()
function.
(#) For synchronous mode, enable the clock and program the polarity,
phase and last bit using the USART_ClockInit() function.
(#) Enable the USART using the USART_Cmd() function.
(#) Enable the NVIC and the corresponding interrupt using the function
USART_ITConfig() if you need to use interrupt mode.
(#) When using the DMA mode:
(++) Configure the DMA using DMA_Init() function.
(++) Activate the needed channel Request using USART_DMACmd() function.
(#) Enable the DMA using the DMA_Cmd() function, when using DMA mode.
[..]
Refer to Multi-Processor, LIN, half-duplex, Smartcard, IrDA sub-sections
for more details.- Attention
© COPYRIGHT 2014 STMicroelectronics
Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); You may not use this file except in compliance with the License. You may obtain a copy of the License at:
http://www.st.com/software_license_agreement_liberty_v2
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
Definition in file stm32f30x_usart.c.