求解MTK校准?
时间:10-02
整理:3721RD
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大家好,
在MTK平台的校准文件里,
有一个CFG文件:
[TX PCL table]
GSM850_MAX_P = 6, 8, 10,12,13.8,15.8,17.8,19.8,21.8,23.8,25.8,27.8,29.5,31,33,
GSM850_WANTED_P = 5,7,9,11,13,15,17,19,21,23,25,27,29,30.5,32.5, [/COLOR]
GSM850_MIN_P = 4,6,8,10,12.5,14.5,16.5,18.5,20.5,22.5,24.5,26.5,28.5,30,32
GSM850_C = 3,3,3,5,5,5,5,5,5,5,5,5,5,5,5,5,
GSM850_CORRECTION = 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
有一个INI文件:
[GSM850 level, ramp]
APC dc offset=125
Low APC dc offset=0
APC lowest power=5
TX power level=48,55,64,74,86,101,119,141,169,204,247,303,373,437,544,544[/COLOR]
profile 0 ramp up=0,0,0,0,0,0,0,0,48,92,150,170,200,255,255,255
profile 0 ramp down=255,253,243,197,113,0,0,0,0,0,0,0,0,0,0,0
请问这两个文件中的两段蓝色粗体代码,对控制各个Level的功率作用有什么区别?
如果我要提高GSM850 Lev5的Max Power,除了修改CFG文件中的GSM850_WANTED_P代码,INI文件中的代码需要修改吗?
在MTK平台的校准文件里,
有一个CFG文件:
[TX PCL table]
GSM850_MAX_P = 6, 8, 10,12,13.8,15.8,17.8,19.8,21.8,23.8,25.8,27.8,29.5,31,33,
GSM850_WANTED_P = 5,7,9,11,13,15,17,19,21,23,25,27,29,30.5,32.5, [/COLOR]
GSM850_MIN_P = 4,6,8,10,12.5,14.5,16.5,18.5,20.5,22.5,24.5,26.5,28.5,30,32
GSM850_C = 3,3,3,5,5,5,5,5,5,5,5,5,5,5,5,5,
GSM850_CORRECTION = 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
有一个INI文件:
[GSM850 level, ramp]
APC dc offset=125
Low APC dc offset=0
APC lowest power=5
TX power level=48,55,64,74,86,101,119,141,169,204,247,303,373,437,544,544[/COLOR]
profile 0 ramp up=0,0,0,0,0,0,0,0,48,92,150,170,200,255,255,255
profile 0 ramp down=255,253,243,197,113,0,0,0,0,0,0,0,0,0,0,0
请问这两个文件中的两段蓝色粗体代码,对控制各个Level的功率作用有什么区别?
如果我要提高GSM850 Lev5的Max Power,除了修改CFG文件中的GSM850_WANTED_P代码,INI文件中的代码需要修改吗?
INI文件中的内容是写进去的,不是校准出来的,改了没用,改GSM850_WANTED_P
值就可以了
谢谢大虾,另外请问如果要修改EGSM900 band的GPRS TX Power, 应该如何修改?比如MTK平台的META工具中,哪些文件需要修改?
GSM850_WANTED_P = 5,7,9,11,13,15,17,19,21,23,25,27,29,30.5,32.5,
是GSM850校准的target power,
TX power level=48,55,64,74,86,101,119,141,169,204,247,303,373,437,544,544
这个是校准时的缺省参数,将先这个数值带进去算,再算达到target power所需的DAC值,得到一个新的PCL对应DAC值,用这个新的值将原有的缺省参数替换掉。
