DCA1000EVM: 无法连续采集数据

[21:08:49] [RadarAPI]:[21:08:49] Start Record command : Success
[21:08:49][21:08:49] DDR is full
[21:08:49][21:08:49] LVDS buffer full
[21:08:49][21:08:49] Record Process :[21:08:49] Timeout Error! System disconnected
[21:08:49][21:08:49] Record stop is done successfully
[21:10:27] [RadarAPI]: ar1.StartMatlabPostProc("D:\\data\\biden.bin")
[21:10:27] [RadarAPI]: No of files Captured: 6, Total no of frames for each device : 32000
[21:11:14] Test Source Already Disabled…!!!
[21:11:14] [RadarAPI]: ar1.DisableTestSource(0)
[21:11:14] [RadarAPI]: Status: Passed
[21:11:14] [RadarAPI]: ar1.FrameConfig(0, 0, 0, 200, 20.1, 0, 0, 1)
[21:11:14] Status: Failed, Error Type: API IS ISSUED WHEN FRAMES ARE ONGOING
[21:11:14] [RadarAPI]: MatlabProc Status: Failed
[21:11:23] [RadarAPI]: ar1.CaptureCardConfig_StartRecord("D:\\data\\biden.bin", 1)
[21:11:23] [RadarAPI]: Sending start_record command to DCA1000
[21:11:27] Frames are already triggered for the device
[21:15:08] [RadarAPI]:[21:15:08] Start Record command : Success
[21:15:08][21:15:08] DDR is full
[21:15:08][21:15:08] LVDS buffer full
[21:15:08][21:15:08] Record Process :[21:15:08] Timeout Error! System disconnected
[21:15:08][21:15:08] Record stop is done successfully
[21:15:48] Frame End async event received!
[21:15:48] [RadarAPI]: ar1.StopFrame()
[21:15:48] Status: Failed, Error Type: FRAME ARE ALREADY STOPPED WHEN THE FRAME_STOP COMMAND WAS ISSUED

我设置了32000帧的数据采集，时长共5分20秒，但是在存储到第六个bin文件时，dca自动停止了数据采集，报错信息如上，请问这是什么原因，谢谢

Shine：

请问是和哪块mmwave板子一起使用的？短时间采集是可以的是么？

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Yifan Ma：

iwr1642boost，短时间采集是可以的，大概超过5G的数据就显示内存满了，这是硬件本身的缺陷么？或者说有没有什么办法让他向pc端传输的快一点，因为我发现数据传输到pc端是有延迟的，谢谢

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Shine：

请尝试修改sensorconfig里的periodicity参数，请参考下面文档中的Table 17. Errors里的DDR_FULL_LEDhttps://www.ti.com/lit/ug/spruij4a/spruij4a.pdf

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Yifan Ma：

还有一个问题，是不是iwr1642boost只能使用low power adc模式？

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Shine：

是的。Low power ADC mode is mandatory on a 5 MHz part variant (for e.g. xWR1642), Normally if IF BW <= 7.5MHz then low power mode setting is recommended.