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/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : readme.txt
* Author : MCD Application Team
* Version : V2.0.1
* Date : 06/13/2008
* Description : Description of the USART Printf Example.
********************************************************************************
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
Example description
===================
This example shows how to retarget the C library printf function to the USART.
This implementation output the printf message on the Hyperterminal using USARTx.
USARTx can be USART1, USART2, USART3, UART4 or UART5; to select the USART
interface to be used uncomment the '#define USE_USARTx' line in 'platform_config.h'
file.
The USARTx is configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- One Stop Bit
- No parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
Directory contents
==================
platform_config.h Evaluation board specific configuration file
stm32f10x_conf.h Library Configuration file
stm32f10x_it.h Interrupt handlers header file
stm32f10x_it.c Interrupt handlers
main.c Main program
Hardware environment
====================
This example runs on STMicroelectronics STM3210B-EVAL and STM3210E-EVAL evaluation
boards and can be easily tailored to any other hardware.
To select the STMicroelectronics evaluation board used to run the example, uncomment
the corresponding line in platform_config.h file.
+ The USARTx signals (Rx, Tx) must be connected to a DB9 connector using a RS232
transceiver.
+ Connect a null-modem female/female RS232 cable between the DB9 connector
and PC serial port.
+ STM3210B-EVAL
- Connect a null-modem female/female RS232 cable between the DB9 connector
(CN6 for USART1, CN5 for USART2 in the STM3210B-EVAL board)
and PC serial port.
+ STM3210E-EVAL
- Connect a null-modem female/female RS232 cable between the DB9 connector
(CN12 for USART1, CN8 for USART2 in the STM3210E-EVAL board)
and PC serial port.
- Hyperterminal configuration:
- Word Length = 8 Bits
- One Stop Bit
- No parity
- BaudRate = 115200 baud
- flow control: None
How to use it
=============
In order to make the program work, you must do the following :
- Create a project and setup all your toolchain's start-up files
- Compile the directory content files and required Library files :
+ stm32f10x_lib.c
+ stm32f10x_usart.c
+ stm32f10x_gpio.c
+ stm32f10x_rcc.c
+ stm32f10x_nvic.c
+ stm32f10x_flash.c
- Link all compiled files and load your image into target memory
- Run the example
******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE******
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