readme.txt

新型M3核ARM STM32的串口通信例程

/******************** (C) COPYRIGHT 2007 STMicroelectronics ********************
* File Name          : readme.txt
* Author             : MCD Application Team
* Date First Issued  : 05/21/2007
* Description        : Description of the USART Example 2.
********************************************************************************
* History:
* 05/21/2007: V0.3
********************************************************************************
* THE PRESENT SOFTWARE 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 SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/

Example description
===================
This example provides a description of how  to use the USART1 interrupts to 
communicate with the hyperterminal.
The USART1 sends a predefined buffer to the hyperterminal and still waiting 
for a string from the hyperterminal which length is defined by RxBufferSize. 
The communication is managed by Transmit and Receive interrupts. 

First, the USART1 sends the TxBuffer to the hyperterminal and still waiting for
a string from the hyperterminal that you must enter.
The string that you have entered is stored in the RxBuffer array. The receive
buffer have a RxBufferSize bytes as maximum.

The USART1 is configured as follow:
    - BaudRate = 9600 baud  
    - Word Length = 8 Bits
    - Two Stop Bit
    - Odd parity
    - Hardware flow control disabled (RTS and CTS signals)
    - Receive and transmit enabled
    - USART Clock disabled
    - USART CPOL: Clock is active low
    - USART CPHA: Data is captured on the second edge 
    - USART LastBit: The clock pulse of the last data bit is not output to 
                     the SCLK pin

  
Directory contents
==================
stm32f10x_conf.h  Library Configuration file
stm32f10x_it.h    Interrupt handlers header file
stm32f10x_it.c    Interrupt handlers source file
main.c            Main program


Hardware environment
====================
 - The USART1 signals (Rx and Tx) must be connected to a DB9 connector using
   a RS232 transceiver.

 - Connect a null-modem female/female RS232 cable between the DB9 connector 
   (CN6 on STM32F10x-EVAL board) and PC serial port.  

 - Hyperterminal configuration:
    - Word Length = 7 Bits
    - Two Stop Bit
    - Odd parity
    - BaudRate = 9600 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_nvic.c
  + stm32f10x_rcc.c
  + stm32f10x_flash.c
    
- Link all compiled files and load your image into either RAM or Flash
- Run the example

******************* (C) COPYRIGHT 2007 STMicroelectronics *****END OF FILE******