LAUNCHXL-CC26X2R1: Direction Finding Solution

I did go back to SDK 5.10.0.2, the only older SDK I can find, and the examples are not there. The only example I can find there is: 'C:\ti\simplelink_cc2640r2_sdk_5_10_00_02\examples\rtos\CC2640R2_LAUNCHXL\blestack\rtls_passive"

and when I look in the README.html file it says:

• This example is made to be used with the rtls_slave and rtls_master examples from the CC13x2_26x2 SDK
• A combination of CC26X0 and CC26X2 devices should be used (CC26X2 device as RTLS Master)
• Please refer to the CC26X2 rtls_master example documentation for more information
• Please refer to the rtls_agent documentation as well \tools\ble5stack\rtls_agent

There was no rtls_master, nor rtls_slave in examples directory.

Sammy

I will take a look at the SDK in your link. In the mean time I have another question about the BOOSTXL-AoA.

What is the distance between antennas?

I tried the link provided here:

Design files

BOOSTXL-AoA design files can be found here.

But the link won't work!

Thanks,

Sammy

Hi Nathan,

Thanks for the correct link. The antenna design files still did not show the distance between antenna arrays! I'll just measure it on the PCB.

I do have different questions:

I've been studying "ant_array1(2)_confg_boostxl_rev1v1.c" file and I could not figure out how TI come up with the values?

AoA_AntennaPair_t pair_A1[] =
{
{// v12
.a = 0, // First antenna in pair
.b = 1, // Second antenna in pair
.sign = 1, // Sign for the result
.offset = 10, // Measurement offset compensation
.gain = 0.95, // Measurement gain compensation
}, ....

1) How do you get sign, offset, and gain values?

2) How do you setup channel offset compensation array?

int8_t channelOffset_A1[40] = {2, // Channel 0
2, // Channel 1
1, // Channel 2 ....

Sammy Thane