问题:GPS小板发出来的定位数据始终是0(具体数据见后面, 测试天线甩到窗户外面,测试时间有1个小时),
是GPS板子的问题,还是天线的问题,或者是测试方法的问题(电话咨询过,GPS小板不需要人为初始化,所以,做了笔记本端上电接收数据测试)
硬件平台:IMX6Q,UM220-III
软件平台:Android4.4
测试步骤:
1.测试APK:GPS TEST PLUS,没有任何数据
2.单独测试GPS小板:串口接PC,通讯率9600,软件:uStar_CH_V3.1,
测试结果:
$GNRMC,000125.000,V,0000.000000,N,00000.000000,E,0.000,0.000,,,E,N*2B
$GNGGA,000125.000,0000.000000,N,00000.000000,E,0,00,127.000,0.000,M,0,M,,*6F
$GNGLL,0000.000000,N,00000.000000,E,000125.000,V,N*59
$GNGSA,A,1,,,,,,,,,,,,,127.000,127.000,127.000*2A
$GNGSA,A,1,,,,,,,,,,,,,127.000,127.000,127.000*2A
$GPGSV,1,1,00*79
$BDGSV,1,1,00*68
$GNRMC,000126.000,V,0000.000000,N,00000.000000,E,0.000,0.000,,,E,N*28
$GNGGA,000126.000,0000.000000,N,00000.000000,E,0,00,127.000,0.000,M,0,M,,*6C
$GNGLL,0000.000000,N,00000.000000,E,000126.000,V,N*5A
$GNGSA,A,1,,,,,,,,,,,,,127.000,127.000,127.000*2A
$GNGSA,A,1,,,,,,,,,,,,,127.000,127.000,127.000*2A
$GPGSV,1,1,00*79
$BDGSV,1,1,00*68
$GNRMC,000127.000,V,0000.000000,N,00000.000000,E,0.000,0.000,,,E,N*29
$GNGGA,000127.000,0000.000000,N,00000.000000,E,0,00,127.000,0.000,M,0,M,,*6D
$GNGLL,0000.000000,N,00000.000000,E,000127.000,V,N*5B
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