readme.txt

stm32F103库文件

/******************** (C) COPYRIGHT 2007 STMicroelectronics ********************
* File Name          : readme.txt
* Author             : MCD Application Team
* Version            : V1.0
* Date               : 10/08/2007
* Description        : Description of the DEBUG Example.
********************************************************************************
* 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.
*******************************************************************************/
本例展示了STM32F10x 固件函数库的DEBUG模式。

只有在文件stm32f10x_conf.h中定义了标签DEBUG，用户才能进入DEBUG模式。一旦定义了这个标签，程序将生成一个指向SRAM中外设结构的指针。因此可以简化除错过程，并且通过转储外设获得所有寄存器的状态。

当用户选择DEBUG模式，宏assert_param被扩展，同时运行时间检查功能也在固态函数库代码中被激活。运行时间检查功能能够检查固件函数库中所有功能函数的输入是否是正确的。

进入DEBUG模式会增加代码的大小，降低代码的运行效率。因此，强烈建议仅仅在除错的时候使用相应代码，在最终的应用程序中，删除它们。

在本例中，程序中故意将不正确的参数赋予了某固件函数库函数。通过USART1，错误源可以显示在PC的超级终端（Hyperterminal）上。

Example description
===================
This example demonstrates the STM32F10x Firmware Library DEBUG mode.  

To enter Debug mode you have to define the label DEBUG in the stm32f10x_conf.h file.
This creates a pointer to the peripheral structure in SRAM. Debugging consequently
becomes easier and all register settings can be obtained by dumping a peripheral variable.
When the Debug mode is selected, the assert_param macro is expanded and run-time checking 
is enabled in the firmware library code. The run-time checking allows checking that
all the library functions input value lies within the parameter allowed values.

The associated program simulates wrong parameter passed to library function and the
source of the error is printed on Hyperterminal (through USART1).


Note:
The Debug mode increases the code size and reduces the code performance. For this
reason, it is recommended to used it only when debugging the application and to
remove it from the final application code.


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


Hardware environment
====================
 - The USART1 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 
   (CN6 on STM3210B-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_gpio.c
  + stm32f10x_rcc.c
  + stm32f10x_nvic.c
  + stm32f10x_flash.c
  + stm32f10x_usart.c
      
- Link all compiled files and load your image into either RAM or Flash
- Run the example


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