norflash 39vf040 驱动程序，包括芯片的读，擦除，写入，按字节操作，buffer操作，可直接应用为bootrom-Norflash 39 vf040 driver, including chip read, erase, write and operation in bytes and buffer operations, can be directly used for the bootrom

ADSP BF609核心板烧写NORflash驱动-ADSP BF609 core board programming NORflash driver

该驱动支持MX25系列的NORflash，操作方式支持SPI,QPI,SPAR接口(The driver supports the MX25 family of NORflash, operates in support of SPI, QPI, SPAR interfaces, supports software SPI, hardware SPI configuration, and is configured by macro definition)

SPI自启C6678，达到开机自动从norflash搬运关键代码到SRAM然后自动触发DSP的各个接口，(SPI Self-activation C6678)