- Ask a related questionWhat is a related question?A related question is a question created from another question. When the related question is created, it will be automatically linked to the original question.
I am currently evaluating IWR1642boost. I will like to transfer real time raw ADC data from IWR1642boost to PC.
1. I understand that I need TSW1400EVM and mmWave DevPack for that. However, if we have all the required hardware then is there a demo code from TI to do that or one has to develop that himself ?
2. Since the ADC sample rate is 12.5 MSps, this correspond to 50 MSps (for four channels) and data rate of 600 Mbps (12 bits per sample). For raw data streaming will we be streaming at this rate or IWR1642 cannot support that and there has to be some dead time between successive chirps ?
Thank you.
Hello
Here is an additional email with the steps for collection. I have an IWR1443, there is one step different in this evaluation, the device selection
a) In Uniflash application, format the IWR1xxx EVM with SFlash
b) Connect the EVM to the DevPack to the TSW1400 per the dfp User Guide, there are also online descriptions under the mmwave tutorials.
c) Make sure the TSW1400 Hsdcpro software is installed and patched through the instructions
When you start the HSDCPRO software, make sure the firmware is selected for your device
d) Under Radar Studio Connection tab – set RS232 ComPort to your Control UART for EVM
e) Under Board Control, SOP Control, select Mode 2, then depress “Set” (check for errors lower right corner)
f) Under RS232 Operations, Select Com Port, Baud Rate, then depress “Connect” (look for RS232 connectivity status)
g) Following the dfp user guide, load the BSS, MSS files (standard mmWave application)
Under Files, BSS FW (browse, select file) then “Load”.
Under Files, MSS FW (browse, select file) then “Load”.
h) Depress “SPI Connect”, look for SPI status connected.
i) Depress “RF Power-up”, check log lower right corner.
j) There are no differences between 1443 and 1642 here, other than Tx selection, under static Config tab
Basic Configuration – Channel Config
Select Tx1, Rx1, Rx2, Rx3, Rx4;
Basic Configuration - ADC Config
Bits -16,
Format – Complex 1x
IQ Swap – I First
The depress “Set”
Advanced Configuration – LP Mode
Select “Regular ADC Mode”
Depress “Set”
Depress “RF Init”
k) Data Configuration Tab – Data path configuration
Data Path “LVDS”
Packet 0 “ADC_ONLY”
Packet 1 “Suppress Packet”
Depress “Set”
Clock Configuration
Lane Clock “DDR Clock”
Data Rate “300Mbps”
Depress “Set”
LVDS Lane Configuration
Lane Format “Format 0”
Lane Config “Check Lane 1, Lane 2” (note for 1443 check all 4)
MSB First
Depress “Set”
l) Ramp Timing Calculator
ADC Full Rate Mode
Complex 1x
Slope “50.018”
ADC Samples “256”
Sample Rate “5000”
HPF1 Corner Freq “175k”
HPF2 Corner Freq “350k”
Use 99% Settling time for output calculations
Idle time 5us
ADC Start Time 6us
Ramp End Time 58.22us
m) Sensor Config
Profile Id – 0
Start Freq 77.0
Freq Slope “50.018” (from Ramp Timing Calculator)
Idle Time “5” (from Ramp timing calculator)
Tx Start Time “1”
ADC Start Time “6” (from Ramp Timing Calculator)
ADC Samples “256” (from Ramp Timing Calculator
Sample Rate (ksps) “5000” (from Ramp Timing Calculator)
Ramp End Time “58.22” (from Ramp Timing Calculator)
Depress “set” in Profile section
Under Chirp Section, enter 0 for each entry, check Tx1
Depress “set” in Chirp section
Under Frame Section, no frames “10”
No of chirp loops “128”
Periodicity “40” (need to make sure duty cycle is <= 50%
n) Far left, depress “Setup TSW1400” (check lower right corner status for OK)
Depress TSW1400 ARM, 1 second later Depress Trigger Frame (which lower right status for finished)
After the lower right status shows capture complete, depress “Post Process” you will get a matlab process of the DFE-output data
For me I have a Corner Reflector at 2.3 meters, the capture in matlab shows 2.3 meters.
You can save your different Radar Studio setups, for quick re-test, this is on the left side.
I have attached a PDF illustrating the installation process, and a screen shot of the matlab output (again my setup is 1443, but this should work directly on 1642.
Regards,
Joe Quintal
