M25P80是意法半导体公司推出的8M大容量串行接口Flash器件，采用2.7V-3.6V单电源供电，兼容标准的SPI接口，器件在上升沿接收数据，在下降沿发送数据，接口时钟最高为40MHz，支持最大256bytes的快速页面编程操作、快速的块擦除（512Kbit）操作和快速的整体擦除操作具有操作暂停和硬件写保护功能-M25P80 is agreed that the semiconductor company introduced 8M large capacity Serial Interfa

Stm32的SPI主从通讯，两块STM32开发板通讯，通过SPI接口-Stm32 the SPI master and slave communication, two STM32 development board communications, through the SPI interface