IWR6843: How to flash the sensor without switching the jumper

Hi Charles

Thanks for your quick reply.

Let me describe my application in more details. I will first flash the sensor with the lab of 3D people counting and install the sensor at a specific location. After the sensor reports the number of people in a room. I hope the sensor can be re-flashed with the lab of vital sign measurement without switching SOP and toggling reset physically. Instead, this is done by sending a command or something similar through USB cable. After the vital sign is measured, the lab of 3D people counting will be re-flashed again. The process will be repeated.

Is this something doable? In addition, would you please elaborate more on how to use the 40 pin LP connector and rework the antenna board?

Thanks!

Kai

Hi,

The proximity required for the vital signs demo is a lot less that that required for the 3D people counting. Is the intended application to mount the board in one location for 3D people counting and then switch to vital signs without changing the boards postion/mounting?

Regards,
Charles O

Hi Charles

Yes, the sensor will be mounted at a fixed location and orientation and switched between both applications. I understand the vital sign measurement may be very inaccurate in this setup. As of now, I would like to check how inaccurate vital sign signals will be in this configuration and decide how to improve it.

Thanks!

Kai

Hi,

I would not expect the vital signs to provide meaningful functionality at the same distance as the 3D people counting.

1. you could toggle the SOP and reset switch using host processor instead of manual toggling 
2. Using could implement the SPI download as shown in  link, https://e2e.ti.com/support/sensors/f/1023/t/928031

Regards,

Charles O

Hi Charles

Do you have any reference/document on how to use ARM core to toggle the SOP? In other words, which signal or variable is used to interact with SOP?

Thanks!

Kai