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我的2401RXEN 和TXEN接的是3.3V，请问只需要#define HAL_PA_LNA就可以了吗
请问您现在是如何连线的？您可以参考以下代码：
/* P1_1 -> PAEN */RFC_OBS_CTRL0 = RFC_OBS_CTRL_PA_PD_INV;OBSSEL1 = OBSSEL_OBS_CTRL0;/* P1_4 -> EN (LNA control) */RFC_OBS_CTRL1 = RFC_OBS_CTRL_LNAMIX_PD_INV;OBSSEL4 = OBSSEL_OBS_CTRL1;
另外因为RFX2401不是官方参考的PA，所以您需要设置macRadioDefsTxPwCC2591[]
