TI中文支持网
TI专业的中文技术问题搜集分享网站

cc253X功耗的小问题

z-Stack中MAC_INTERNAL_API uint8 macRadioSetTxPower(uint8 txPower)设置TXpower  ,协议栈在哪里配置TxPower,听说默认值1dB在哪里设置的,在哪里修改默认值,安装官方的genricAPP做出来发射电流34mA,是不是表明发射功率是4.5dB,待接收状态工作电流30mA,我用的芯片是cc2531

Yue TANG:

初始化的Txpower由macPibDefaults决定。如下。所以没有使用PA时,默认是0dbm. 对照datasheet,34mA,是4.5dbm的发射功率,当然是不考虑其他外设耗电的情况,你可以IAR调试的时候看TXPOWER寄存器嘛,如果是0XF5就是4.5dbm,其他值请对照datasheet.

#if defined (HAL_PA_LNA)  19,                                         /* phyTransmitPower for CC2591 */#elif defined (HAL_PA_LNA_CC2590)  11,                                         /* phyTransmitPower for CC2590 */#else  0,                                          /* phyTransmitPower without frontend */#endif

 

const uint8 CODE macRadioDefsTxPwrBare[] ={  3,  /* tramsmit power level of the first entry */  (uint8)(int8)-22, /* transmit power level of the last entry */  /*   3 dBm */   0xF5,   /* characterized as  4.5 dBm in datasheet */  /*   2 dBm */   0xE5,   /* characterized as  2.5 dBm in datasheet */  /*   1 dBm */   0xD5,   /* characterized as  1   dBm in datasheet */  /*   0 dBm */   0xD5,   /* characterized as  1   dBm in datasheet */  /*  -1 dBm */   0xC5,   /* characterized as -0.5 dBm in datasheet */  /*  -2 dBm */   0xB5,   /* characterized as -1.5 dBm in datasheet */  /*  -3 dBm */   0xA5,   /* characterized as -3   dBm in datasheet */  /*  -4 dBm */   0x95,   /* characterized as -4   dBm in datasheet */  /*  -5 dBm */   0x95,  /*  -6 dBm */   0x85,   /* characterized as -6   dBm in datasheet */  /*  -7 dBm */   0x85,  /*  -8 dBm */   0x75,   /* characterized as -8   dBm in datasheet */  /*  -9 dBm */   0x75,  /* -10 dBm */   0x65,   /* characterized as -10  dBm in datasheet */  /* -11 dBm */   0x65,  /* -12 dBm */   0x55,   /* characterized as -12  dBm in datasheet */  /* -13 dBm */   0x55,  /* -14 dBm */   0x45,   /* characterized as -14  dBm in datasheet */  /* -15 dBm */   0x45,  /* -16 dBm */   0x35,   /* characterized as -16  dBm in datasheet */  /* -17 dBm */   0x35,  /* -18 dBm */   0x25,   /* characterized as -18  dBm in datasheet */  /* -19 dBm */   0x25,  /* -20 dBm */   0x15,   /* characterized as -20  dBm in datasheet */  /* -21 dBm */   0x15,  /* -22 dBm */   0x05    /* characterized as -22  dBm in datasheet */};

 

赞(0)
未经允许不得转载:TI中文支持网 » cc253X功耗的小问题
分享到: 更多 (0)