AWR6843: Configuration Issue with 6843 in Level Sensing Lab

Hello, I encountered a problem when configuring the 6843 using the Level_Sensing laboratory

The configuration parameters I used are as follows:

dfeDataOutputMode  1

channelCfg  1 1 0

adcCfg  2 2

adcbufCfg  0 1 1 1

profileCfg  0 77 7 7 114.4 0 0 33.71 1 1024 25000 0 0 52

chirpCfg  0 0 0 0 0 0 0 1

frameCfg  0 0 255 0 1000 1 0

lowPower  0 0

guiMonitor  1 1 0 0 0 1

RangeLimitCfg  2 1 1.0 3.0

sensorStart

When I changed frameCfg to 0 32 4 0 1000 1 0,

the debug information displayed

Error: MMWDemoMSS mmWave Configuration failed [Error code -203816658].

I'm not sure why this issue occurred. In fact, when both the chirp start index and chirp end index are 0, the number of loops can be successfully configured with any value not exceeding 255, but when I change the values of chirp start index and chirp end index, the parameters cannot be configured successfully. What is the problem?

Lydia：

您好，

已经收到了您的案例，调查需要些时间，感谢您的耐心等待。

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Jiaxin LIu：

Have you made any progress on this issue?

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Vivian Gao：

We are still processing it. If there are any results or other clarification needed, we will reply to you

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Vivian Gao：

AWR6843 operates in the band of 60-64GHz. In the profile cfg CLI, you are using the start frequency of 77GHz. 

Please use the configuration from the below location

radar_toolbox_3_10_00_05\source\ti\examples\Industrial_and_Personal_Electronics\Level_Sensing\high_accuracy\chirp_configs\high_accuracy_demo_68xx.cfg

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Jiaxin LIu：

You are right, but I forgot to mention that I am actually using the AWR1843, and the project I am using has been modified from the 6843 example, so the starting frequency used is 77G.

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Vivian Gao：

We do not provide a level sensing lab with AWR1843. Have you developed it yourself ? 

Level sensing is a 1 chirp, 1Tx, 1Rx usecase. It will not work with multiple chirps

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Jiaxin LIu：

I used the level sensing lab for awr1843 mentioned in this previous post:AWR1843AOPEVM: AWR1843AO能否配置实现单发单收？ – 传感器论坛 – 传感器 – E2E 设计支持I am indeed using 1Tx and 1Rx. The frameCfg 0 0 255 0 1000 1 0 parameter means there are 255 chirp cycles in one frame. I want to change it to frameCfg 0 32 16 0 1000 1 0 to achieve 512 chirp cycles in one frame, but the radar cannot start normally after the change.