[Tinyos-help] Re: [Tinyos-devel] Fwd: [6lowpan] Re: Some comments aboutdraft-ietf-6lowpan-format-04

2006-09-11 Thread Chang Li
Is 6LowPan going to be an international standard? This message went out on the IETF 6lowpan mailing list the other day. This IETF WG is exploring how to provide IP networking on low-power wireless (currently, just 802.15.4). I forwarded the message here in case anyone is interested in

Re: [Tinyos-help] Antenna gain on tmote

2006-07-25 Thread Chang Li
yards is even better. I have done range testing with the standard antenna and some external antennas in an open hay field. We had similar results to what you are getting when they are on the ground. Matt[EMAIL PROTECTED] wrote: - To: Chang Li [EMAIL PROTECTED]From: Matt

[Tinyos-help] Are there Zip files for TinyOS 2.0 and AVR, MSP430 Toolchain?

2006-07-19 Thread Chang Li
RPMpackages are not platform independent. By using Zip packages I can embed these packages into a new platform such as cygwin. Many Open Source software provide standard Zip distribution such as Eclipse, PHP, Cygwin. ___ Tinyos-help mailing list

Re: [Tinyos-help] Antenna gain on tmote

2006-07-18 Thread Chang Li
What is the maximum distance between two motes who can communicate outside by your chip antenna? Hi, Does anyone know the dBi gain of the PCB antenna on the tmote sky modules?? We have layed out a board with fractus 1dBi gain antennas, and we're not getting close to the range of the

[Tinyos-help] Waht is the AT series to get AM message?

2006-07-04 Thread Chang Li
I can get the message from the UART serial port now. How can set the AT series to get the AM message like the Java Listen? ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU

[Tinyos-help] Listen and ListenRaw

2006-07-04 Thread Chang Li
How to get Java Listen format message from the ListenRaw format? For example 7e42 040108 01 047d 5d18 000100 87c17e --ListenRaw20 bytes 040108 01 047d 18000100 -- Listen 14 bytes And there were some packets without the tail 7e in raw message, werethey bad packets?

[Tinyos-help] Using SPI with Telosb Connector

2006-06-23 Thread Chang Li
How to use a SPI device along with telosb's IDC connector? I want to use USART0 pins or I2C pins for SPI link. However SPI0 has been used by CC2420 and Flash Memory, is itpossible to connect third device? I found the I2C examples where are the SPI examples? Another way is to share SPI1 with

Re: [Tinyos-help] Using SPI with Telosb Connector

2006-06-23 Thread Chang Li
: - To: tinyos-help@Millennium.Berkeley.EDUFrom: "Chang Li" [EMAIL PROTECTED]Sent by: [EMAIL PROTECTED]Date: 06/23/2006 11:41AMSubject: [Tinyos-help] Using SPI with Telosb Connector How to use a SPI device along with telosb's IDC connector? I want to

[Tinyos-help] ADC Value

2006-06-16 Thread Chang Li
In the ADC convertion oftelos the V = Value/4096*Vref, what is the meaning of 4096?Does it apply for all the ADC convertion for MSP430 in TinyOS? Chang ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU

Re: [Tinyos-help] Help : mA-hr calculation for MICA2 with MDA300

2006-05-27 Thread Chang Li
You can use a multimeter to connect the wire of battery to get the real value. Itwill be less than 100mA. In theory a MCU is 6mA but other ICs may be far more than that. Chang - Original Message - From: chandresh parekh To: tinyos help Sent: Saturday, May 27, 2006

Re: [Tinyos-help] tmote batteries lifetime

2006-05-25 Thread Chang Li
I bought 8 AA batteries in the 1 dollar store. It only run 20 hours then the leds were dim. The voltage of the battery was under 2.0v. 18.2+mA is the current consumption of CC 2420. There are MSP430 and Flash Memory as well as othere ICs. I am wondering why have tested the current of 50 to 60 mA

Re: [Tinyos-help] About malloc

2006-04-11 Thread Chang Li
Current TinyOS does not support malloc.No dynamicmemory allocation is available. Chang - Original Message - From: Tran Trong Tri To: Tinyos-help@Millennium.Berkeley.EDU Sent: Tuesday, April 11, 2006 10:19 PM Subject: [Tinyos-help] About "malloc" Hi,

Re: [Tinyos-help] About malloc

2006-04-11 Thread Chang Li
allocation in the future. - Original Message - From: Tran Trong Tri To: Chang Li Cc: Tinyos-help@millennium.berkeley.edu Sent: Tuesday, April 11, 2006 11:13 PM Subject: Re: [Tinyos-help] About malloc Hi, Thanks for your help...But if you look at the file adjacency_list.c

Re: [Tinyos-help] Can we specify an interface function as inline?

2006-04-02 Thread Chang Li
A pin compatible MCU family may have 4:1, 8:1, 16:1, ... ratios. Unlike othere embedded applications, RAM size less than 4KB is not enough for WSN applications. To get code size down, a MCU with small size flash can be used. My point is that the extreme inline optimization is not necessary

Re: [Tinyos-help] Can we specify an interface function as inline?

2006-03-31 Thread Chang Li
inline will inflate code size. Look at the MSP430F1611 mote its Code/Data Rate = FLASH/RAM Rate = 48KB / 10KB = 4.8 The FALSH/RAM Rate of tinyos applications: Blink 2606B/40B = 65.15 SurgeTelos 17140B/670B = 25.58 SimpleCmdTelos 11516B/359

Re: [Tinyos-help] comunicating with deluge after rebooting withanother image then DelugeBasic

2006-03-28 Thread Chang Li
Do you means to modify Blink code to run Deluge? Why run BSL twice to get Deluge work? Chang - Original Message - From: Joe Polastre [EMAIL PROTECTED] To: Gelu Contiu [EMAIL PROTECTED] Cc: tinyos-help@Millennium.Berkeley.EDU Sent: Tuesday, March 28, 2006 12:17 PM Subject: Re:

Re: [Tinyos-help] TinyOS MSP430 Binary Compatible Question

2006-03-23 Thread Chang Li
, Chang Li [EMAIL PROTECTED] wrote: Is TinyOS 1.x MSP430 binary compatible with TI's MSP430 binary? TI's gdb loader doesn't recognize tinyos' format. ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi

[Tinyos-help] External Falsh for MCU

2006-03-20 Thread Chang Li
If my tinyos code is 512KB but the internal flash memory of MCU is only 50KB, can I load and run this program? Suppose the use of SRAM is small enough. My program is supposed to use a large amount of static strings. ___ Tinyos-help mailing list

Re: [Tinyos-help] Using one mote as a repeater

2006-03-17 Thread Chang Li
Try SimpleCmd sample and modify Makefile to COMPONENT=Bcast. This is a special case of multihop broadcast. Hi everyone: Recently I try to use one mote as a message repeater, Here is the scenario: Assume that there are 5 sensors in the network, and their id are 0,1,2,3,4 respectively.

Re: [Tinyos-help] Writing tmote flash

2006-03-06 Thread Chang Li
I have similar experience. After I were trying to write in 4K+1, 4K, 4K+3, I got it right. I am not sure which sequence is right. The overlap may cause flash writing error. Hi, I am using TinyOS-2.0 and trying to write into flash memory using Block write. When I write first block of data it

[Tinyos-help] TinyDBApp does not work for Telosb

2006-03-01 Thread Chang Li
I tried to "make telosb" in the apps/TinyDBApps but therewas an error andcompiler was terminated. The "make pc" and "make mica2"worked fine.TinyOS version is 1.1.15 ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU

[Tinyos-help] TinyOS 2.0 Beta Test

2006-02-21 Thread Chang Li
I tested TinyOS 2.0 beta for windows with Cygwin today. It is better than 1.x. I just list several troubles. 1. The rpm -Uvh should be replaced by rpm -ivh --ignores --force Otherwise the rpm packages might not be installed. 2. msvcr71.dll is missed in the package for MSP430 tools. 3. JDK

Re: [Tinyos-help] TinyOS 2.0 Beta Test

2006-02-21 Thread Chang Li
2. msvcr71.dll is missed in the package for MSP430 tools. Which tool actually needs that? (Kristin, can you look into this?) I think a DLL was compiled with Visual Studio C++ 2003. 3. JDK 1.5 was installed in another path but could not find the javac in command line. Was this Sun's JVM?

[Tinyos-help] About TOSSIM

2006-02-20 Thread Chang Li
Iknow TOSSIM is a simulator but does itrun along witha real mote network? ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help

[Tinyos-help] Deluge Error

2006-02-15 Thread Chang Li
Title: Message I formatted the Flashto runcode in FormatFalsh and then install DelugeBasic and run Serial Forwarder. However when I tried to run % java net.tinyos.tools.Deluge --ping the error message "write packet error." was displayed. What is the problem? The TinyOS version is 1.1.15.

Re: [Tinyos-help] Battery Types -Tmote

2006-02-08 Thread Chang Li
Most Litium Ion batteries are 3.8V so a regularator is required. 250mAh may be enough for a mote to run. I do not know the max current for Flash write. Chang Hi Terence, We had the same question some time ago, and we found that 3 1,2V batteries in series, when new, may have next to 3,8V,

Re: [Tinyos-help] Battery Types -Tmote

2006-02-08 Thread Chang Li
Below is from the paper. At around 6.5 hours, the capacitor voltage exceeds the charging threshold of 4.4V and the battery is below 3.5V, resulting in a charge pulse (as seen by the sharp drop in capacitor voltage in A and increase in battery voltage in B). This rapidly transfers most of the