功能：接收下载程序通过串口传递下来的每页（32字节）字符 ，并将接收到的字符写入存储器 版本：v3.1 状态：passed 注意对25XX320操作前不能先清零SPI的三根数据和时钟线信号-functions : receiving download through the serial port transfer from the page (32 byte) character, and will receive written into memory version :