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IWR6843AOPEVM: Pinmux引脚设置问题

Part Number: IWR6843AOPEVM
Other Parts Discussed in Thread: IWR6843AOP

在官方提供的6843呼吸心跳demo C:\ti\mmwave_industrial_toolbox_4_8_0\labs\vital_signs\68xx_vital_signs 中,我发现mss程序中UART-1引脚设置如下:

#ifdef SOC_XWR68XX
Pinmux_Set_OverrideCtrl(SOC_XWR68XX_PINN5_PADBE, PINMUX_OUTEN_RETAIN_HW_CTRL, PINMUX_INPEN_RETAIN_HW_CTRL);
Pinmux_Set_FuncSel(SOC_XWR68XX_PINN5_PADBE, SOC_XWR68XX_PINN5_PADBE_MSS_UARTA_TX);
Pinmux_Set_OverrideCtrl(SOC_XWR68XX_PINN4_PADBD, PINMUX_OUTEN_RETAIN_HW_CTRL, PINMUX_INPEN_RETAIN_HW_CTRL);
Pinmux_Set_FuncSel(SOC_XWR68XX_PINN4_PADBD, SOC_XWR68XX_PINN4_PADBD_MSS_UARTA_RX);
#endif

这个PINN4和PINN5我在IWR6843AOP芯片的管脚手册中并未找到,请问代码是不是有什么错误?