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sys/bios 使用SPI驱动无法中断



请教,C6747的spi采用EDMA模式进行收发数据的时候,不能产生传输完成中断。。是什么原因啊??使用的是pdk包中SPI的驱动,即spi_edma.c和spi.c两个文件进行的;