Thread black-box modem

[armelfourreau]

Hello NXP,

First of all, thank you for your extensive Thread documentation, it is very helpful

I am working on a design using a KW41-based module (Rigado's R41Z) as a black-box Thread modem, which will be controlled by a host via UART. This raises a few questions :

• among the binaries provided in the SDK, which one should I flash into the module?
• which pins of the KW41 will be used for RX/TX/CTS/RTS?
• are the RTS and CTS lines required anyway?
• how should the host configure the UART connection (baudrate, parity and so on...)?

I will also create a small test board with and USB/UART converter to test a minimalist setup. Where can I find some examples of "raw" UART messages that I can send via putty to check if the module is alive?

Thank you for your help.

Best,

Armel

[mario_castaneda · Accepted solution]

Hi ,

-The example that you want to flash it will depend to the example that you want run.

   Please take a look for the documentation, Kinetis Thread Stack Demo Applications User’s Guide. 

   8 Demo Functionality Overview

   C:\NXP\MKW41Z_ConnSw_1.0.2\docs\wireless\Thread

-You can take a look for the next table in the Reference manual.

   2.2 Signal Multiplexing and Pin Assignments

http://www.nxp.com/assets/documents/data/en/reference-manuals/MKW41Z512RM.pdf?&fsrch=1&sr=1&pageNum=... 

-That lines are required if you are using Hardware control.

-Also you can find Low power Uarts Drivers

   C:\NXP\MKW41Z_ConnSw_1.0.2\boards\frdmkw41z\driver_examples\lpuart

Hope it helps,

Mario