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TMS320C6657: EDMA3 Channel Synchronization Events 事件对应不上某个TC

Part Number: TMS320C6657


大家好 6657的mcbsp1 通过edma3发送时 

调用TI提供的驱动函数void EDMA_channel_TC_cfg (CSL_TpccRegs* EDMACCRegs, Uint32 uiChannel, Uint32 uiTC)  把64个EDMA3_CC Events中的某一个对应到4个TC中的某一个

但是发现 mcbsp1的发送EDMA3_CC Events是39 它只能对应TC1 TC2才能正常执行发送

                    uart0的发送EDMA3_CC Events是5  它只能对应TC0 TC2才能正常执行发送

难道不是EDMA3_CC Events任意对应某个TC吗???