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Omap L138中的ARM核无法进中断



我直接调用starterware中ARM核的timer例程,或者用ccs5自带的SYS/BIOS中的clock例程,都无法响应定时器中断。但如果选择DSP核,其它操作都相同,各种例程都可以运行正常。是不是ARM核需要在启动时对中断做一些附加的处理?