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LAUNCHXL-CC3235SF: 如何知道SPI通信正常

Part Number: LAUNCHXL-CC3235SF
Other Parts Discussed in Thread: CC3235SF, ADS1299

移植了SPI的驱动后,用示波器测SCLK引脚和MOSI引脚,都没有波形出现,用万用表测试也没有电压值,请问怎么解决呢?怎么才能知道SPI通信正常呢?