0727@52RD-MTK校准过程.docx

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1、AFC的校准2005-1-2516:11:01ID=O2005-1-2516:11:03Agilent663x2okinitialize（init）2005-1-2516:11:03AgilentEquipmentEnabled-I=02005-1-2516:11:03TargetEnabled-2=02005-1-2516:11:03TargetWriteAFCvaluetoNVRAM（写入初始值，比如scorpio的是4672）2005-1-2516:11:03=Writeinitialvaluetoflashend=2005-1-2516:11:03=AFCcalibrationbegi

2、n=2005-1-2516:11:03Agilent8960Band=EGSMband（设置仪器）2005-1-2516:11:03Agilent8960BCHARFCN=702005-1-2516:11:03Agilent8960cellpower=-602005-1-2516:11:03TargetEnabled2=02005-1-2516:11:04TimerCal-Enabled3=026MHzVC-TCXO的AFC校准过程1）依据上面写入的初始值DACl=4672,测量手机的频率fl；2）在DACl的上面加上肯定的步长得到DAC2,测量手机频率Note：Slope=3）计算斜率SIo

3、Pe,公式如下whereDAC1andDAC2areAFCDACvalue,andMandNf、areaveragedfrequencyerrormeasuredattargetside.依据Slope算出26M对应的DAC值，校准结束。2005-1-2516:11:04=AFCcalibrationend=2005-1-2516:11:04=AFCcalibrationcheckbegin=对依据SSpe得到的值进行测试,此例得到的是DAC值是4395,Sk）Pe是2.77399,下面将对这两个结果检测看是否在目标范围之内，包括4000DAC5000,lSlope4,Fedefaultval

4、ue=43952005-1-2516:11:04Targetslopeinv=14762005-1-2516:11:04TimerCal-Enabled4=02005-1-2516:11:04TargetWriteAFCvaluetoNVRAM2005-1-2516:11:04TargetWriteAFCvaluetoNVRAM2005-1-2516:11:04=AFCcalibrationcheckend=2005-1-2516:11:04TargetSetAFCDAC=43952005-1-2516:11:04=Pathlosscalibrationbegin=接收信道补偿的校准2005-

5、1-2516:11:04Agilent8960band=EGSM2005-1-2516:11:05Agilent8960BCHARFCN=152005-1-2516:11:05Agilent8960Power=-602005-1-2516:11:05TargetEnabled1=02005-1-2516:11:05Targetpower=-4862005-1-2516:11:05delta1.=62005-1-2516:11:05Agilent8960BCHARFCN=302005-1-2516:11:05Agilent8960Power=-602005-1-2516:11:05TargetE

6、nabledI=O2005-1-2516:11:05Targetpower=-4882005-1-2516:11:05delta1.=82005-1-2516:11:05Agilent8960BCHARFCN=452005-1-2516:11:05Agilent8960Power=-602005-1-2516:11:05TargetEnabledI=O2005-1-2516:11:05Targetpower=-490ADC的校准1）依据原理图，对于ADC的校准主要利用了ADCo和ADC3这两个模数转换通道（分别对应电池VBAT和Charge端，其余两个通道的值校准后干脆用ADCO的校准参数，不

7、单独做校准。2）校准的过程：先限制电源供电电压分别为3.4V和4.2V,则可以得到两个对应的ADC值,依据这两组值分别计算出ADCO和ADC3的slop和offset值，知道了slop值和offset值，就可以得到每个输入电压的值。3）准后的检测：主要检测SIOP和OffSet值是否超出范围，还有ADCCUIrentlimitcheck和ADCVOItageIimitCheCk两项功能，分别检测通过电阻RESlSTANCE的电流，还有在ADCO和ADC3之处得到的电压差。4）通过检测后就可以把校准参数写到手机里了。2005-1-2516:18:36=ADCcalibrationbegin=20

8、05-1-2516:18:36setAgilent663x2setvlotage=3.42005-1-2516:18:36setAgilent663x2measurevlotage=3.411222005-1-2516:18:36BATTERY_ADCJDUtPUt=625.9489746093752005-1-2516:18:36CHARGER_ADC_Output0=624.6790161132812005-1-2516:18:36setAgilent663x2setvlotage=4.22005-1-2516:18:36setAgilent663x2measurevlotage=4.21

9、3722005-1-2516:18:36BATTERY_ADC_Outputl=7743610229492192005-1-2516:18:36CHARGER_ADC_Output1=772.7050170898442005-1-2516:18:36BATTERY_ADC_Slope=54072005-1-2516:18:36BATTERY_ADC_Offset=265622005-1-2516:18:36CHARGER_ADC_Slope=54212005-1-2516:18:36CHARGER_ADC_Offset=246202005-1-2516:18:36StartwrittingAD

10、Cslopeandoffsettoflash2005-1-2516:18:37TargeKWriteADCslopeandoffsettoflashok2005-1-2516:18:37=ADCcalibrationend=2005-1-2516:18:37=ADCcurrentlimitcheckbegin=2005-1-2516:18:37BATTERY_ADC_Outputl2=774.3060302734382005-1-2516:18:37CHARGER_ADC_Output2=772.7089843752005-1-2516:18:37=ADCcurrentlimitchecken

11、d=2005-1-2516:18:37=ADCvoltagelimitcheckbegin=2005-1-2516:18:37setAgilent663x2setvlotage=3.62005-1-2516:18:37setAgilent663x2measurevlotage=3.611382005-1-2516:18:37BATTERY_ADC_Output2=662.252005-1-2516:18:37BATTERY_ADC_Predict_Vbltage=3.60734772682192005-1-2516:18:37CHARGER_ADC_Output2=660.8599853515

12、632005-1-2516:18:37Pass:ADCcalibrationcheckbatterychannelvlotagedifference=0.004032373428344732005-1-2516:18:37Pass:ADCcalibrationcheckslopeandoffset.BATTERYADCslope=5407minbatteryADCslope=5250maxbatteryADCslope=55502005-1-2516:18:37=AEX2voltagelimitcheckend=2005-1-2516:18:39setAgilent663x2setvlotage=3.8手动校准ADC1）先校准ADCO通道,先在Pointl输入3400,并把电源电压设置成3.4V,按下START,可以看到软件将计算出ADC值641.7；然后在Point2输