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发送MAN_Ch_x命令，通道无法设置成功，是什么原因？
MAN_Ch=MAN_Ch_0 + uiChannel*(0x400);
CS = 0; asm(" RPT #1 || NOP"); mcbspA_Send(MAN_Ch); mcbspA_Receive(); CS = 1;
代码是这样写的，不知道存在什么问题。
硬件设计有没有问题？电源是否正常？SPI波形对不对
现在数据能接收了。但出现了一个新问题，输入增大到一定程度，继续增大，输出反而会下降，这可能是什么原因？
