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OMAP-L138: OMAP-L138有没有通过SPI NOR FLASH启动的应用文档或者例程?

Part Number: OMAP-L138

OMAP-L138有没有通过SPI NOR FLASH启动的应用文档或者例程?我这边bootmode改成SPI1启动,焊接了符合要求的spi nor flash。上电SPI上面是有数据,应该也是对的,CPU发读数据的标识码03,然后发起始地址是0x00 00 00;后面SPI nor flash回复了0x54 49 50 41,确实是存在flash里前四个字节的内容,但是就此结束了,不往后读了。不知道正确的启动过程应该是什么样,目前只能有这样的分析,需要求助原厂,谢谢