本例程实现串行Flash的读写操作，并测试读写速度。采用STM32内置的SPI硬件接口访问串行Flash。



　　程序执行结果通过串口1（USART1）送到计算机的串口。可以通过PC机的串口超级终端软件观察程序执行结果。



　　上电后，打印例程版本信息和操作提示信息, 显示检测到的芯片ID。

　　用户可以通过PC机串口终端软件发送命令字符来控制程序运行。-This routine Serial Flash read and write operations, and test the read and write speed. STM32 uses the built-in hardware to access the serial SPI Flash interface. Results of the program via the serial port 1 (USART1) to the serial port of the computer. The results can be performed via a PC serial port HyperTerminal watcher. After power-up, print routine release information and operating tips information that shows the detected chip ID. Users can send commands to the control program run characters through the PC serial port terminal software.