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你好，想通过CPU2控制外设，需要将外设的ownership分配给CPU2，可以参考芯片TRM的CPUSEL8寄存器： http://www.ti.com.cn/cn/lit/ug/spruhm8i/spruhm8i.pdf
程序中需要加入：
EALLOW; DevCfgRegs.CPUSEL8.bit.CAN_B = 1; //CPU2 is the owner EDIS;
把ownership从CPU1转给CPU2。
