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ADC采样点数与原始数据不匹配

你好,我在使用capture_demo获得原始的ADC数据后,共128个chirp,每个chirp采样256点,使用complex_2x采样,借助你们提供的Matlab解析代码绘制了原始的ADC数据图(前128*256=32768点),第一幅图为局部放大。但我发现原始的ADC数据图中的周期与我设置的采样点数不一致,如图所示。我设置的一个chirp的采样点数为256,但图中的周期为1024,能不能请TI的工程师解答一下,谢谢!

Wesley He:

你好,
有没有将4个RX通道数据分离开?
谢谢

user1642.:

回复 Wesley He:

你好。我是将mss.c文件中第412行的ptrOpenCfg->chCfg.rxChannelEn 值改为了15U,原来是2U。我的理解是15U=1111b表示使能4根接收天线,2U=0010b,只使能了接收天线3,我的理解对吗?
1642采用非交叉的方式储存数据,即前128*256=32768点表示天线1的数据,还需要怎样分离通道数据呢?
谢谢!

user1642.:

回复 Wesley He:

你好,还想问一下。在配置capture demo的发射信号后,总是出现以下的错误信息,是怎么回事?
[Cortex_R4_0] Debug: Launched the Demo Initialization Task
Debug: mmWave Control Sync was successful
Debug: Test Framework Initialized
[C674X_0] Debug: Launched the Demo Initialization Task
Debug: Test Framework Initialized
[Cortex_R4_0] Debug: Framework Sync was successful
[C674X_0] Debug: Framework Sync was successful
[Cortex_R4_0] Debug: mmWave has been opened
Debug: Profile has been loaded successfully
Debug: Profile has been opened successfully
Error: Unable to configure the mmWave module [Error: -203685690 mmWave: -3108 SubSys: 49]
[C674X_0] Debug: Profile has been opened successfully
[Cortex_R4_0] xdc.runtime.Main: "D:/1-software/TI/MMWAVE-SDK/mmwave_sdk_02_01_00_04/packages/ti/drivers/test/mem_capture/xwr16xx/mss.c", line 1012: assertion failure
xdc.runtime.Error.raise: terminating execution

user5872702:

回复 user1642.:

请问这个问题你解决了吗?

user1642.:

回复 user5872702:

哪一个问题

user5872702:

回复 user1642.:

你好,还想问一下。在配置capture demo的发射信号后,总是出现以下的错误信息,是怎么回事?
[Cortex_R4_0] Debug: Launched the Demo Initialization Task
Debug: mmWave Control Sync was successful
Debug: Test Framework Initialized
[C674X_0] Debug: Launched the Demo Initialization Task
Debug: Test Framework Initialized
[Cortex_R4_0] Debug: Framework Sync was successful
[C674X_0] Debug: Framework Sync was successful
[Cortex_R4_0] Debug: mmWave has been opened
Debug: Profile has been loaded successfully
Debug: Profile has been opened successfully
Error: Unable to configure the mmWave module [Error: -203685690 mmWave: -3108 SubSys: 49]
[C674X_0] Debug: Profile has been opened successfully
[Cortex_R4_0] xdc.runtime.Main: "D:/1-software/TI/MMWAVE-SDK/mmwave_sdk_02_01_00_04/packages/ti/drivers/test/mem_capture/xwr16xx/mss.c", line 1012: assertion failure
xdc.runtime.Error.raise: terminating execution

这个问题

user1642.:

回复 user5872702:

看一下设置的frame占空比是不是满足小于50%的要求。

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