[Tinyos-help] CC2420 Errata Note 003, rev 0.3 : Setting RXCTRL1.RXBPF_LOCUR

Hi All, One of the Chipcon errata notes suggests setting the RXCTRL1.RXBPF_LOCURbit. This is a fix for a problem that occurs when the VDD pins are supplied with voltage less than 1.8 V. Importantly, it also notes that setting this bit will also reduce Rx current consumption by 1.2 mA ! I do not

[Tinyos-help] cygwin shell ?

I m extremely new to tinyos. i am trying to install the same on windows, according to the installation instructions at tinyos.net. I have downloaded 'cygwin-1.2a.tgz'. The next step given on the site is 'In a cygwin shell, unzip the above package into some directory. In these instructions the

[Tinyos-help] software reset msp430

hi anyone know how to reset the msp430 processor from software. I read in the manual that the watchdog time should be able to do it. and that if the password field is written to incorrectly it should reset. tried this but it didnt work. anyone know how? thanks cormac

[Tinyos-help] make micaz sim doesn't work

i am trying to run the sample Blink application on tinyos2.x using cygwin. but i get the folowing error $ make micaz sim mkdir -p build/micaz placing object files in build/micaz writing XML schema to app.xml compiling BlinkAppC to object file sim.o ncc -c -shared -fPIC -o build/micaz/sim.o -g

[Tinyos-help] tinydb compiling error

Dear all, When I try to compile tinydb, 5 error appear as following. How can I deal with it? Many thanks. javac MoteSimObjectGenerator.java

[Tinyos-help] What results from packet collision in telosb ?

Hi, When two telosb motes try to send a packet to one receiver(telosb mote) simultaneously, collision can happens between two packets. In that case, I wonder that one of them can be transmitted to the receiver without any fault. I saw this case in my experiments. Who can make sense of that? Thank

Re: [Tinyos-help] CC2420 Errata Note 003, rev 0.3 : Setting RXCTRL1.RXBPF_LOCUR

Boomerang 2.0.4 has this fix (and has been out and released for quite some time) TinyOS 2.x does NOT have this fix. Nor does TinyOS 1.x. -Joe On 12/7/06, harish prabhu [EMAIL PROTECTED] wrote: Hi All, One of the Chipcon errata notes suggests setting the RXCTRL1.RXBPF_LOCUR bit. This is a

Re: [Tinyos-help] CC2420 Errata Note 003, rev 0.3 : Setting RXCTRL1.RXBPF_LOCUR

Boomerang 2.0.4 has this fix (and has been out and released for quite some time) TinyOS 2.x does NOT have this fix. Nor does TinyOS 1.x. -Joe On 12/7/06, harish prabhu [EMAIL PROTECTED] wrote: Hi All, One of the Chipcon errata notes suggests setting the RXCTRL1.RXBPF_LOCUR bit. This is a

Re: [Tinyos-help] Using I2C Bus for MSP430

On Thursday 07 December 2006 08:42 am, Matteo Andretto wrote: I thought that in TmoteSky pull-up resistor was already connect. I am too optimistic? I think so. ;^) The good folks at MoteIV have the schematic for the TMote Sky in the data sheet, and on a cursory glance I don't see pull-ups.

Re: [Tinyos-help] What results from packet collision in telosb ?

You might get lucky and have one signal wash out the other, but as I just said in another reply, it's likely to all just be radio noise when more than one transmitter is active. MS [EMAIL PROTECTED] wrote: Hi, When two telosb motes try to send a packet to one receiver(telosb mote)

Re: [Tinyos-help] Is it possible to transmit radio signal simultaneously from two or more motes?

Using different, and appropriately separated channels, will work otherwise it's all radio noise... MS Chong Hui Kim wrote: When two or more motes are transmitting radio signal, I know that they must compete to get channel for transmitting. It means that only one mote can transmit radio

Re: [Tinyos-help] What results from packet collision in telosb ?

Kamin Whitehouse has a paper on the study of this phenomenon; you can read it here: http://www.cs.virginia.edu/~whitehouse/pubs/whitehouse05emnets.pdf Cheers, Rob On 12/7/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Hi, When two telosb motes try to send a packet to one receiver(telosb

Re: [Tinyos-help] Using I2C Bus for MSP430

SDA has a pullup, SCL does not and requires a pullup for I2C mode. -Joe On 12/7/06, R. Steve McKown [EMAIL PROTECTED] wrote: On Thursday 07 December 2006 08:42 am, Matteo Andretto wrote: I thought that in TmoteSky pull-up resistor was already connect. I am too optimistic? I think so. ;^)

[Tinyos-help] TinyOS execution order / atomic issue?

Hello, I'm having a problem getting some code to work, where the application prints a message to the serial port, blocks while the uart transmits data, then prints another message. I don't know whether I'm misunderstanding the execution order or the use of atomic sections, but here's the

Re: [Tinyos-help] TinyOS execution order / atomic issue?

On Dec 7, 2006, at 12:04 PM, Jeff King wrote: The while loop in Boot.booted() doesn't seem to pick up that the global variable 'blocking' has changed. Any clue as to why the app can't print the Booting, Part 2 line? I'm not a 100% expert on C (David), but perhaps you need a volatile?

Re: [Tinyos-help] UartByte.send locks up?

Jeff King wrote: Has anyone tried using the new UartByte interface in the TinyOS 2.0 release? Sending and receiving serial data using UartStream works fine, but the blocking UartByte.send never unblocks: I've tracked this down to two problems. First, the TXCIE (TX Complete Interrupt

Re: [Tinyos-help] TinyOS execution order / atomic issue?

Wow! volatile...and cogent descriptions of TOS tasks and Spin Lock usage... You guys are gods! MS ps...in the original code, you probably don't really need the atomics (or the intermediate tb because the blocking value is a single byte and the test is only going one way, which is (I think,

Re: [Tinyos-help] TinyOS execution order / atomic issue?

ps...in the original code, you probably don't really need the atomics (or the intermediate tb because the blocking value is a single byte and the test is only going one way, which is (I think, under all conditions) going to be reliably TRUE or FALSE from instruction to instruction... Correct. I

Re: [Tinyos-help] Cannot find java and javac - java tools not compiled

in my cygwin, when I input type java, output is *** $ type java java is /cygdrive/c/j2sdk1.5.0/bin/java *** But when I install tinyos1.1.10, the output is :