使用PA，定义HAL_PA_LNA，除了会使用到P07还有哪些引脚？
#if defined (HAL_BOARD_CC2530EB_REV17) && !defined (HAL_PA_LNA) && !defined (HAL_PA_LNA_CC2590)
#define HAL_NUM_LEDS 3
#elif defined (HAL_BOARD_CC2530EB_REV13) || defined (HAL_PA_LNA) || defined (HAL_PA_LNA_CC2590)
#define HAL_NUM_LEDS 1
#else
#error Unknown Board Indentifier
#endif
为什么会有这个HAL_NUM_LEDS的限制？
#if !defined (HAL_BOARD_CC2530EB_REV17) && !defined (HAL_BOARD_CC2530EB_REV13)
#define HAL_BOARD_CC2530EB_REV17
#endif
#if defined (HAL_BOARD_CC2530EB_REV17) && !defined (HAL_PA_LNA) && !defined (HAL_PA_LNA_CC2590)
#define HAL_NUM_LEDS 3
#elif defined (HAL_BOARD_CC2530EB_REV13) || defined (HAL_PA_LNA) || defined (HAL_PA_LNA_CC2590)
#define HAL_NUM_LEDS 1
#else
#error Unknown Board Indentifier
#endif
看如上两个预编程，是不是要人工定义HAL_BOARD_CC2530EB_REV13？
