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TMS320C6678: TMDSEVM6678LE的Miscellaneous 80 Pin中SPI使用问题

Part Number: TMS320C6678
Other Parts Discussed in Thread: ADS131E08

在这80pin中有一组spi功能引脚,但是我看评估板上CS1用于DSP与FPGA的SPI。

请问我如何能断开DSP与FPGA的CS1,把CS1用于DSP与ADS131E08的传输?