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IWR6843AOP: The spi interface of iwr6843aop cannot be multiplexed to ordinary gpio, resulting in a failure to normally flip level signals.

Yu You
Prodigy 40 points
Part Number: IWR6843AOP

As shown in the figure, spi is multiplexed as normal gpio and set to output mode using the GPIO_setConfig function. However, high and low levels cannot be written using GPIO_write.