IWR1443: Custom PCB help!

Jason Parmenter

Part Number: IWR1443
Other Parts Discussed in Thread: UNIFLASH, IWR1642,

Hello,

I have created a custom PCB that utilizes the IWR1443 sensor for level sensing application. So far, I am able to flash the highAccuracy lab demo to the external flash memory (part# MX25R1635FZNIH0) via UniFlash. Using the CLI commands I am able to execute all of the commands and receive acknowledgement as shown below. However, when I send the command to start the sensor, it fails. Can someone help be start the debug process? I have had two different errors pop up in the Uart output and you can see the CLI commands I am sending below. I'm hoping that someone has run into this same error while developing and point me in the right direction. Thanks!

******************************************

xWR14xx MMW Demo 01.01.00.02

******************************************

mmwDemo:/>sensorStop
Done

mmwDemo:/>
mmwDemo:/>flushCfg
Done

mmwDemo:/>
mmwDemo:/>dfeDataOutputMode 1
Done

mmwDemo:/>
mmwDemo:/>channelCfg 1 1 0
Done

mmwDemo:/>
mmwDemo:/>adcCfg 2 1
Done

mmwDemo:/>
mmwDemo:/>adcbufCfg 0 1 0 1
Done

mmwDemo:/>
mmwDemo:/>profileCfg 0 77 7 7 130.05 0 0  27.96 1 512 4195 0 0 36
Done

mmwDemo:/>
mmwDemo:/>chirpCfg 0 0 0 0 0 0 0 1
Done

mmwDemo:/>
mmwDemo:/>frameCfg 0 0 1 0 500 1 0
Done

mmwDemo:/>
mmwDemo:/>calibDcRangeSig 0 -5 5 32
Done

mmwDemo:/>
mmwDemo:/>guiMonitor 1   1 0  0 0  1
Done

mmwDemo:/>
mmwDemo:/>sensorStart
Debug: Init Calibration Status = 0x5fe

Exception: ../main.c, line 1045.

******************************************

xWR14xx MMW Demo 01.01.00.02

******************************************

mmwDemo:/>
mmwDemo:/>
mmwDemo:/>sensorStop
Done

mmwDemo:/>
mmwDemo:/>flushCfg
Done

mmwDemo:/>
mmwDemo:/>dfeDataOutputMode 1
Done

mmwDemo:/>
mmwDemo:/>channelCfg 1 1 0
Done

mmwDemo:/>
mmwDemo:/>adcCfg 2 1
Done

mmwDemo:/>
mmwDemo:/>adcbufCfg 0 1 0 1
Done

mmwDemo:/>
mmwDemo:/>profileCfg 0 77 7 7 130.05 0 0  27.96 1 512 4195 0 0 36
Done

mmwDemo:/>
mmwDemo:/>chirpCfg 0 0 0 0 0 0 0 1
Done

mmwDemo:/>
mmwDemo:/>frameCfg 0 0 1 0 500 1 0
Done

mmwDemo:/>
mmwDemo:/>calibDcRangeSig 0 -5 5 32
Done

mmwDemo:/>
mmwDemo:/>guiMonitor 1   1 0  0 0  1
Done

mmwDemo:/>
mmwDemo:/>sensorStart
Exception: ../main.c, line 1200.

over 5 years ago

0 Radio-Joe over 5 years ago

TI__Mastermind 37500 points

Hello,

Flashing seemed to work

Looking at the boot process, you are able to send Control UART messages, and receive status.

The MSS Data logger requires us to get Radar data (not tested yet)

There is a hardware checklist and debug Spreadsheet, it is a board bringup process.

a) assume you have measured the power supply value, and ripple and noise - they are within the datasheet limits

b) assume you have used a high impedance oscilloscope and measured CLKP - 40Mhz with proper jitter, ~1v peaktopeak

c) please make sure the internal power rails 1v4_APLL, 1v4_SYNTH, 1v0_RF_PA, after nRESET = 1 are nominal values.

d) make sure the Tx and Rx antennas pass a microscope inspection, no solder mask on the RF traces.

e) If you download the mmwave Studio software package, in the docs folder is an ICD document, it has more information on some error codes

and internal software functions we send commands from external to MSS. The MSS reformats these messages for the RF subsystem, and sends them to

the BSS

1) in your first example "

Debug: Init Calibration Status = 0x5fe"
The BSS processors performed a calibration, and returned the status.

For IWr1443, the normal calibration status is

mmwDemo:/>sensorStart
Debug: Init Calibration Status = 0x7fe

Done

The Interface Control Document - 5.2.9, the bit mask of tests

bits 12 .. 4 are active tests.

Each of the tests, can be enabled or disabled.

If you go through a device reset, and program with the OOB demo, and visualizer, the terminal window,

if the internal calibration continues to fail, this would be internal to the device. You need to see if you have a repetitive error.

you would reflow or replace the part. The calibration does not use the antenna, it has internal loopback.

If you use the Visualizer - OOB first, and you get the RF calibration Done, you

can do an antenna test/ range test.

The antenna pattern test, azimuth and elevation, can be checked by recording the Visualizer response, or

using CCS capture the L3 memory, for the receiver data, or 1D FFT data.

In My opinion,the High Accuracy demo, is more difficult to do device bringup, TIDEP91 Level sensing, also has simpler signal processing

but uses SPI instead of UART.

You should always reset the device between attempts to reprogram, for debugging.

Regards

Joe Quintal

0 Jason Parmenter over 5 years ago in reply to Radio-Joe

Sensors

Sensors forum

IWR1443: Custom PCB help!