Zstack设置发送功率(CC2530)

RF输出功率可以由RF寄存器TRCTRLL.PA_LEVEL控制，具体设置参数可参考下表：



ZStack中有如下定义：

const uint8 CODE macRadioDefsTxPowerTable[] =

{

/* 0 dBm */ 0x5F, /* characterized as -0.4 dBm in datasheet */

/* -1 dBm */ 0x3F, /* characterized as -0.9 dBm in datasheet */

/* -2 dBm */ 0x3F,

/* -3 dBm */ 0x1B, /* characterized as -2.7 dBm in datasheet */

/* -4 dBm */ 0x17, /* characterized as -4.0 dBm in datasheet */

/* -5 dBm */ 0x13,

/* -6 dBm */ 0x13, /* characterized as -5.7 dBm in datasheet */

/* -7 dBm */ 0x13,

/* -8 dBm */ 0x0F, /* characterized as -7.9 dBm in datasheet */

/* -9 dBm */ 0x0F,

/* -10 dBm */ 0x0F,

/* -11 dBm */ 0x0B, /* characterized as -10.8 dBm in datasheet */

/* -12 dBm */ 0x0B,

/* -13 dBm */ 0x0B,

/* -14 dBm */ 0x0B,

/* -15 dBm */ 0x07, /* characterized as -15.4 dBm in datasheet */

/* -16 dBm */ 0x07,

/* -17 dBm */ 0x07,

/* -18 dBm */ 0x07,

/* -19 dBm */ 0x06, /* characterized as -18.6 dBm in datasheet */

/* -20 dBm */ 0x06,

/* -21 dBm */ 0x06,

/* -22 dBm */ 0x06,

/* -23 dBm */ 0x06,

/* -24 dBm */ 0x06,

/* -25 dBm */ 0x03 /* characterized as -25.2 dBm in datasheet */

};

缺省设置为0dBm，即

#define MAC_RADIO_TX_POWER_DEFAULT 0x1F

macPhyTxPower = MAC_RADIO_TX_POWER_DEFAULT;

MAC_RADIO_SET_TX_POWER(macPhyTxPower);

至于macRadioDefsTxPowerTable中0dBm为0x5F而不是0x1F，是因为0x1F只代表TRCTRLL的低5位即TRCTRLL.PA_LEVEL，而0x5F则包含了高3位的缘故。