Changing communication channel and RF Power

To change default communication channel and RF Power you can either:
1) edit opt/tinyos-1.x/tos/lib/CC2420Radio/CC2420Const.h
CC2420_DEF_CHANNEL 11 (this is default value)
CC2420_DEF_RFPOWER 0x1f (31, maximum, if you for example want to test multihop routing easiest way is to make RFPOWER smaller)

2) add line in Makefile
CC2420_DEF_CHANNEL = 11
CC2420_DEF_RFPOWER= 0x1f

3) change it in program by colling function from CC2420Control interface, called:
SetRFPower(uint8_t power);

Comments

Unknown said…
hey thanks a lot man I'm also working on TOS currently there isn't really much sources to look into. u have actually inspired me to start my own blog
Ayman
January 20, 2009 at 11:48 AM
Post a Comment

Popular posts from this blog

Exporting Skype Chat/Skype Contacts to csv file using the shell script and sqlite3 (usually already installed on mac)

Edit: a very first draft version of Skype Exporter have been made and released. https://github.com/renesto/SkypeExportSwift/releases check it, and report any issues to renesto-at-gmail.com I heard there are not so many nice ways to get the chat history from skype, so I came across a page of one guy who shows a way to open the sql chat history database and delete all conversations. I thought to make something more from that idea (as delete chat history is now one of the options in skype) Create a file exportFromSkype.sh place either this text: sqlite3 -batch "$HOME/Library/Application Support/Skype/$1/main.db" < <EOF .mode csv .output $2.csv select * from Messages where dialog_partner = '$2'; .output stdout .exit EOF now make the script executable by running chmod +x exportFromSkype.sh now, when you want to export some chat history from certain person, you can do it by: sh exportFromSkype.sh your_skype_name your_friends_skype_name and i...
Read more

Javascript comparison operators

I came across very nice short explanation of the differences between == and === comparison operators. I have copied this into my blog just in case the post gets deleted from stackoverflow for whatever reason. The identity (===) operator behaves identically to the equality (==) operator except no type conversion is done, and the types must be the same to be considered equal. Reference: Javascript Tutorial: Comparison Operators The == operator will compare for equality after doing any necessary type conversions . The === operator will not do the conversion, so if two values are not the same type === will simply return false. It's this case where === will be faster, and may return a different result than ==. In all other cases performance will be the same. To quote Douglas Crockford's excellent JavaScript: The Good Parts , JavaScript has two sets of equality operators: === and !== , and their evil twins == and != . The good ones work the way you would expect. ...
Read more

SAS and Web/REST Service Calls

SAS offers a possibility to communicate with Web Services and REST services using a couple of tools. Most important products of SAS required to properly communicate with Web Services/REST Services are: PROC SOAP PROC HTTP XML Library Engine (xmlv2) The following examples show how are these coupled together: Calling and Parsing the Web Service using SAS Calling and Parsing the REST service using SAS
Read more