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TMS320F280025C: FSI

Part Number: TMS320F280025C

利用FSI传数据,用单根线传输数据正确,用双根线传输数据不正确,GPIO配置正确, FsiTxaRegs.TX_OPER_CTRL_LO.bit.DATA_WIDTH = 1;FsiRxaRegs.RX_OPER_CTRL.bit.DATA_WIDTH = 1;只更改了这里,由0改成1,请问还需要更改别的地方吗?