Other Parts Discussed in Thread: UNIFLASH
Tool/software:
I am currently working with the AWR1843AOPEVM radar sensor and following the Auto MRR User's Guide. I have successfully flashed the xwr18xx_mrr_demo.bin file located at
C:\ti\radar_toolbox_2_20_00_05\source\ti\examples\ADAS\medium_range_radar\ after rebuild the demo to support only MRR subframes. ( changes done in the mrr_config_consts.h)
Here is the setup I am using:
CCS version: 12.8
SDK version: 3.6
Radar module: AWR1843AOPEVM
UniFlash version: 8.8
After flashing, I placed the radar in front of a wall, ensuring no moving objects were present. I then captured the packet data via USB using RealTerm.
below is the one of the packet data (in Hex value)
Header Start
0201040306050807 -- Magic word
00020603 -- Version
00020000 -- Total packet length
42160A00 -- Platform
E7440000 -- Frame numbers
408C9BEF -- Time CPU cycles
16000000 -- Number Detected Objects
02000000 -- Number of TLV
00000000 -- Sub Frame Number
Header End
01000000 -- type -(MMWDEMO_OUTPUT_MSG_DETECTED_POINTS)
E0000000 -- length of the MMWDEMO_OUTPUT_MSG_DETECTED_POINTS data
16000700 -- Descripator (0016 -- number of object) & (0007 -- xyzFormat)
details of the each object (speed, peakvalue,x,y,z )
0000 AE16 68FF 6205 0000 -- for the object 1
0000 B813 90FD B70D 0000 -- for the object 2
0000 B113 FD03 0F0E 0000
0000 AB12 98FE 0314 0000
0000 1E11 C3FE 2A1A 0000
0000 5711 EDFD 821C 0000
0000 CD0E D802 1729 0000
1905 0313 7EFE 730B 0000 -- for the object 8
1905 C811 59FE D50D 0000
1905 2111 68FE 0014 0000
1905 960F 2AFF 2F1A 0000
1905 DB0F EBFF 951C 0000
1905 F80E E802 1629 0000
E7FA 9D15 7200 3F01 0000
E7FA 0114 A6FF 6705 0000
E7FA E711 A4FD BA0D 0000
E7FA 1511 61FE FF13 0000
E7FA 750F CE02 E420 0000
E7FA A60E CAFC E822 0000
E7FA 9A0E 4003 9723 0000
E7FA BC10 2E02 2129 0000
E7FA F70E B204 FA2A 0000
Second TLV
03000000 -- Type (Noise Profile)
D0000000 -- Length of NOISE PROFILE Data
110007001504080E1400FBFF0501050156FE831563002505050105019DFE03144200040005010501C9FD4B1CFCFF000005010501B1FD2D0DB0FFC6FA0501050181FF31050C000100FE00FE00C1FDBF0D3E000A00050105013DFE530FF1FF1F0505010501D8FE2B1A0800000005010501EAFF821E780019050501050139020F2B240018050501050124FE360E4DFF0C050501050157FE11131901FCFA050105015304392A59FE0DFB05010501A5021A28F9FEF6FA050105012203D31FA501B9FA050105012602F9262400E4FA05010501
Padding bytes :-0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F
Issue & Query:
1. Given the setup environment with no moving objects, the extracted speed value of 1305 m/s (1905---> hex value 519 --> decimal value is 1305 m/sec )for Object 8 seems incorrect. The expected speed should be zero or near-zero.
2. Could you confirm if the extracted packet structure and interpretation are correct?
3. Additionally, what could be the potential reason for the incorrect speed values in a static environment?
for the object 8, the relative speed is the (1905---> hex value 519 --> decimal value is 1305 m/sec ) that is wrong because there is no moving object in the setup environment .
