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119 lines
5.2 KiB
Plaintext
119 lines
5.2 KiB
Plaintext
/**
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@page UART_Printf UART Printf example
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@verbatim
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******************** (C) COPYRIGHT 2016 STMicroelectronics *******************
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* @file UART/UART_Printf/readme.txt
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* @author MCD Application Team
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* @brief Description of the UART Printf example.
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******************************************************************************
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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@endverbatim
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@par Example Description
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This example shows how to re-route the C library printf function to the UART.
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The UART outputs a message on the HyperTerminal.
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Board: STM32F303ZE-Nucleo Rev B
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Tx Pin: PD.08
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Rx Pin: PD.09
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_________________________
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| ______________| _______________
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| |USART | | HyperTerminal |
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| | | | |
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| | TX |______________________|RX |
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| | | | |
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| | | ST-Link Cable | |
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| | | | |
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| | RX |______________________|TX |
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| | | | |
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| |______________| |_______________|
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|_STM32_Board_____________|
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LED2 is ON when there is an error occurrence.
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The USART is configured as follows:
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- BaudRate = 9600 baud
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- Word Length = 8 Bits (7 data bit + 1 parity bit)
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- One Stop Bit
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- Odd parity
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- Hardware flow control disabled (RTS and CTS signals)
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- Reception and transmission are enabled in the time
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@note USARTx/UARTx instance used and associated resources can be updated in "main.h"
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file depending hardware configuration used.
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@note When the parity is enabled, the computed parity is inserted at the MSB
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position of the transmitted data.
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@par Directory contents
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- UART/UART_Printf/Inc/stm32f3xx_hal_conf.h HAL configuration file
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- UART/UART_Printf/Inc/stm32f3xx_it.h IT interrupt handlers header file
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- UART/UART_Printf/Inc/main.h Header for main.c module
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- UART/UART_Printf/Src/stm32f3xx_it.c Interrupt handlers
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- UART/UART_Printf/Src/main.c Main program
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- UART/UART_Printf/Src/stm32f3xx_hal_msp.c HAL MSP module
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- UART/UART_Printf/Src/system_stm32f3xx.c STM32F3xx system source file
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@par Hardware and Software environment
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- This example runs on STM32F303xE devices.
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- This example has been tested with STM32F303ZE-Nucleo Rev B board and can be
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easily tailored to any other supported device and development board.
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- STM32F303ZE-Nucleo Rev B Set-up:
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Connect ST-Link cable to the PC USB port to display data on the HyperTerminal.
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A virtual COM port will then appear in the HyperTerminal.
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@note Make sure that :
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SB5 is ON and SB6 is ON for USART3 communication between target and ST-Link (by default)
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- Hyperterminal configuration:
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- Data Length = 7 Bits
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- One Stop Bit
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- Odd parity
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- BaudRate = 9600 baud
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- Flow control: None
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@par How to use it ?
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In order to make the program work, you must do the following :
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- Open your preferred toolchain
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- Rebuild all files and load your image into target memory
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- Run the example
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* <h3><center>© COPYRIGHT STMicroelectronics</center></h3>
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*/
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