Re: [Tinyos-help] Collection ack retransmission
Thank you very much. yes yes colection concerns routing not link layer. Cheers, Nahr Elk 2008/5/13, Omprakash Gnawali [EMAIL PROTECTED]: On Mon, May 12, 2008 at 12:27 PM, Nahr ... [EMAIL PROTECTED] wrote: Hi, I just want to know how much a node retransmit a not acked msg and how long? for exemple A sends msg to B B receive the msg and sends Ack :( ack is lost. 1. How long A wait the msg ack? Collection does not send an ack - it relies on link layer ack. 2. How much A retransmit the not acked msg ? CTP will usually retransmit 5-7 times before it switches the parent. - om_p ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] Collection Tree Protocol
Hi TinyOS users! I'm trying to implement a network involving three MICA2 motes (one of them as a base station). I've been doing some research about dynamic routing algorithms, and I've decided to use the Collection Tree Protocol (CTP). I find TinyOS documentation about CTP very interesting, but I don't know how to use the components and interfaces properly (I'm a bit lost). Does anybody know about some example code or any other detailed documentation? Thanks in advance. == Este mensaje se dirige exclusivamente a su destinatario, y puede contener información confidencial sometida a secreto profesional, o cuya divulgación esté legalmente prohibida.Cualquier opinión en él contenida es exclusiva de su autor y no representa necesariamente la opinión de la empresa. Si ha recibido este mensaje por error, le rogamos nos lo comunique de forma inmediata por esta misma vía y proceda a su eliminación, así como a la de cualquier documento adjunto al mismo. El correo electrónico vía Internet no es seguro y no se puede garantizar que no haya errores ya que puede ser interceptado, modificado, perdido o destruido, o contener virus. Cualquier persona que se ponga en contacto con nosotros por correo electrónico se considerará que asume estos riesgos. This e-mail is addressed exclusively to the recipient and may contain privileged information under a professional confidential agreement or it may be against the law to disclose its contents. Any opinion contained in it belongs exclusively to his/her author and does not necessarily reflect the company's view. If you receive this e-mail in error, please let us know immediately (by return e-mail) and proceed to its destruction, as well as any document attached to it. The sending of e-mails through the Internet is not safe and, therefore, error-free communications cannot be guaranteed, as they can be intercepted, changed, misled or destroyed or they might contain a virus. Any user contacting us through e-mails shall be understood to be assuming these risks. ==___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
Re: [Tinyos-help] why is s-mac not implemented for CC2420-based platforms in TOS2?
Hi Abhishek, you're right! It seems that a great deal of the work has already been done. I'll try to stick a little bit more on my implementation, because I need it anyway, but it doesn't seem to have a brigth future... Le 9 mai 08 à 04:11, abhishek chanani a écrit : Hi Erwing, Thanks for your reply. I am not sure how long I ll stick around with this project but do have a look at the paper A Component-Based Architecture for Power-Efficient Media Access Control in Wireless Sensor Networks by Kevin Klues∗ , Gregory Hackmann, Octav Chipara, Chenyang Lu. I think they have already done a lot of the work. On Thu, May 8, 2008 at 8:15 PM, Erwing R. Sanchez [EMAIL PROTECTED] wrote: Le 8 mai 08 à 15:24, abhishek chanani a écrit : Hi Erwing, Just wanted to know whats your progress in implementing S-MAC on the telosb platform. I m doing some similar work and thought you might be able to help. Hi Abhishek, I'm still working on it. At first I wanted to port the code from tos1 on top of platform-specific modules in tos2. That'd allow the code to be used with any platform; however I realized that'll be a lot of work so now I'm just focusing only on telosb and its cc2420 stack. My idea is to re-use the tinyos2 stack as much as possible, and that means, basically, that I'm trying to insert the s-mac layer into the ActiveMessage stack (speciffically on top of CsmaC). This is just my approach, and I think it makes sense but I will be willing to discuss with you any other ideas. Erwing -- Regards, Abhishek Chanani Academic Affairs Secretary, 315-Mandakini Hostel Indian Institute of Technology, Madras Mobile: +919444005765 Phone: (044) 22578540 [EMAIL PROTECTED] ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] Reading ADC values in atmega128L using TinyOS 2x platform
Greetings I am facing slight difficulty in reading values directly from the ADC pins in my MicaZ motes. I need to retrieve values from ADC1,2 and 3. In tinyOS 1x,there was an ADC interface defined which could be used. However, this is not the case in tinyos 2x because of so much abstraction. I would be thankful if someone could pass me on the code. regards Shikhar ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] Fwd: Reading ADC values in atmega128L using TinyOS 2x platform
Greetings I am facing slight difficulty in reading values directly from the ADC pins in my MicaZ motes. I need to retrieve values from ADC1,2 and 3. In tinyOS 1x,there was an ADC interface defined which could be used. However, this is not the case in tinyos 2x because of so much abstraction. I would be thankful if someone could pass me on the code. regards Shikhar ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] Low Power Listening
For Low Power Listening in the default Tinyos 2.x cvs stack (Box-MAC-2?) , the two interfaces as below: command void setLocalSleepInterval(uint16_t sleepIntervalMs); command void setRxSleepInterval(message_t *msg, uint16_t sleepIntervalMs); The Node (Receiver and Transmitter) would set its local sleep interval from the first command. The Receiver of course, if is peer-to-peer synchronized following the same sleep interval would be awake at that interval for receive check ? Why do we need to set the interval on the packet we're sending? Please let me understand. Thanks -- Nitin Sharma ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
Re: [Tinyos-help] Fwd: Reading ADC values in atmega128L using TinyOS 2x platform
On May 13, 2008, at 11:04 AM, Shikhar Sachan wrote: Greetings I am facing slight difficulty in reading values directly from the ADC pins in my MicaZ motes. I need to retrieve values from ADC1,2 and 3. In tinyOS 1x,there was an ADC interface defined which could be used. However, this is not the case in tinyos 2x because of so much abstraction. I would be thankful if someone could pass me on the code. Please take a look at platform/mica/VoltageC.nc platform/mica/VoltageP.nc They show how to write a simple ADC sample. VoltageP is just 3 lines of code that tell the ADC how to be configured for the sample. Phil ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
Re: [Tinyos-help] Low Power Listening
Nitin, Why do we need to set the interval on the packet we're sending? Because the recipient of the message may have a different sleep interval from that of the sender. LPL is explained in TEP 105, which is available at http://www.tinyos.net/tinyos-2.x/doc/html/tep105.html . Also, I recommend that you also read http://docs.tinyos.net/index.php/Writing_Low-Power_Applications . Janos -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nitin Sharma Sent: Tuesday, May 13, 2008 1:08 PM To: tinyos-help@millennium.berkeley.edu Subject: [Tinyos-help] Low Power Listening For Low Power Listening in the default Tinyos 2.x cvs stack (Box-MAC-2?) , the two interfaces as below: command void setLocalSleepInterval(uint16_t sleepIntervalMs); command void setRxSleepInterval(message_t *msg, uint16_t sleepIntervalMs); The Node (Receiver and Transmitter) would set its local sleep interval from the first command. The Receiver of course, if is peer-to-peer synchronized following the same sleep interval would be awake at that interval for receive check ? Why do we need to set the interval on the packet we're sending? Please let me understand. Thanks -- Nitin Sharma ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
Re: [Tinyos-help] Low Power Listening
Your node has a local sleep interval defining how often the radio wakes up to perform a receive check. Other nodes in the vicinity may have different sleep intervals. For example, maybe you have a node nearby that is not actually part of your network and is awake all the time. It would be bad to assume that every node around your node is on the same sleep schedule. Therefore, your node must specify the destination's sleep interval before sending the packet, which may be different than your local sleep interval. That way the radio stack will know how to deliver the packet to its intended destination. -David -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nitin Sharma Sent: Tuesday, May 13, 2008 11:08 AM To: tinyos-help@millennium.berkeley.edu Subject: [Tinyos-help] Low Power Listening For Low Power Listening in the default Tinyos 2.x cvs stack (Box-MAC-2?) , the two interfaces as below: command void setLocalSleepInterval(uint16_t sleepIntervalMs); command void setRxSleepInterval(message_t *msg, uint16_t sleepIntervalMs); The Node (Receiver and Transmitter) would set its local sleep interval from the first command. The Receiver of course, if is peer-to-peer synchronized following the same sleep interval would be awake at that interval for receive check ? Why do we need to set the interval on the packet we're sending? Please let me understand. Thanks -- Nitin Sharma ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
Re: [Tinyos-help] Low Power Listening
Thanks Janos and David. I have got yet another query. So i assume, the transmitter could decide to send as soon as it has a packet to send and the radio is on .And keep on retransmitting (within the receive check period interval ) unless acked or timeout. http://docs.tinyos.net/index.php/Writing_Low-Power_Applications says The transmitter stops sending once it receives a link-layer acknowledgment or a timeout of twice the check period. My concern is for a recipient with a relatively longer schedule. Does it keep on retrying for twice the check period in the worst case? Any insight into how many retransmissions? Thanks again. Nitin On Tue, May 13, 2008 at 1:46 PM, David Moss [EMAIL PROTECTED] wrote: Your node has a local sleep interval defining how often the radio wakes up to perform a receive check. Other nodes in the vicinity may have different sleep intervals. For example, maybe you have a node nearby that is not actually part of your network and is awake all the time. It would be bad to assume that every node around your node is on the same sleep schedule. Therefore, your node must specify the destination's sleep interval before sending the packet, which may be different than your local sleep interval. That way the radio stack will know how to deliver the packet to its intended destination. -David -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nitin Sharma Sent: Tuesday, May 13, 2008 11:08 AM To: tinyos-help@millennium.berkeley.edu Subject: [Tinyos-help] Low Power Listening For Low Power Listening in the default Tinyos 2.x cvs stack (Box-MAC-2?) , the two interfaces as below: command void setLocalSleepInterval(uint16_t sleepIntervalMs); command void setRxSleepInterval(message_t *msg, uint16_t sleepIntervalMs); The Node (Receiver and Transmitter) would set its local sleep interval from the first command. The Receiver of course, if is peer-to-peer synchronized following the same sleep interval would be awake at that interval for receive check ? Why do we need to set the interval on the packet we're sending? Please let me understand. Thanks -- Nitin Sharma ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help -- Nitin Sharma ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] Modifying TestSerial.h - nx_uint16_t to nx_uint8_t
Dear all,
I'm creating a new protocol to transfer data between the computer and PC.
So, I have modified the struct test_serial_msg as follow:
typedef nx_struct test_serial_msg {
nx_uint8_t counter;
} test_serial_msg_t;
But the TestSerialMsg has been created with counter as short.
What is wrong?
Thanks all
Daniel Patrick
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Re: [Tinyos-help] Low Power Listening
I've updated this wiki doc: The transmitter stops sending once it receives a link-layer acknowledgment or a timeout. The timeout is a few milliseconds longer than the receiver's check period. We no longer transmit for twice the receive check period because receive check reliability has increased since 2.0.1. Worst case is your transmitter will transmit for a few milliseconds longer than the destination's receive check period. -David -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nitin Sharma Sent: Tuesday, May 13, 2008 12:58 PM To: tinyos-help@millennium.berkeley.edu Subject: Re: [Tinyos-help] Low Power Listening Thanks Janos and David. I have got yet another query. So i assume, the transmitter could decide to send as soon as it has a packet to send and the radio is on .And keep on retransmitting (within the receive check period interval ) unless acked or timeout. http://docs.tinyos.net/index.php/Writing_Low-Power_Applications says The transmitter stops sending once it receives a link-layer acknowledgment or a timeout of twice the check period. My concern is for a recipient with a relatively longer schedule. Does it keep on retrying for twice the check period in the worst case? Any insight into how many retransmissions? Thanks again. Nitin On Tue, May 13, 2008 at 1:46 PM, David Moss [EMAIL PROTECTED] wrote: Your node has a local sleep interval defining how often the radio wakes up to perform a receive check. Other nodes in the vicinity may have different sleep intervals. For example, maybe you have a node nearby that is not actually part of your network and is awake all the time. It would be bad to assume that every node around your node is on the same sleep schedule. Therefore, your node must specify the destination's sleep interval before sending the packet, which may be different than your local sleep interval. That way the radio stack will know how to deliver the packet to its intended destination. -David -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nitin Sharma Sent: Tuesday, May 13, 2008 11:08 AM To: tinyos-help@millennium.berkeley.edu Subject: [Tinyos-help] Low Power Listening For Low Power Listening in the default Tinyos 2.x cvs stack (Box-MAC-2?) , the two interfaces as below: command void setLocalSleepInterval(uint16_t sleepIntervalMs); command void setRxSleepInterval(message_t *msg, uint16_t sleepIntervalMs); The Node (Receiver and Transmitter) would set its local sleep interval from the first command. The Receiver of course, if is peer-to-peer synchronized following the same sleep interval would be awake at that interval for receive check ? Why do we need to set the interval on the packet we're sending? Please let me understand. Thanks -- Nitin Sharma ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help -- Nitin Sharma ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
Re: [Tinyos-help] Modifying TestSerial.h - nx_uint16_t to nx_uint8_t
On May 13, 2008, at 1:13 PM, Daniel Pereira wrote:
Dear all,
I'm creating a new protocol to transfer data between the computer
and PC.
So, I have modified the struct test_serial_msg as follow:
typedef nx_struct test_serial_msg {
nx_uint8_t counter;
} test_serial_msg_t;
But the TestSerialMsg has been created with counter as short.
What is wrong?
Nothing is wrong. Java does not have unsigned types. So to represent
values in the range of 0 to +255, a byte (-128 to +127) is
insufficient and you need a short (-32768 to +32767).
Phil
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[Tinyos-help] Linking C files into Tinyos
I am attempting to compile and link c code into tinyos-1.x. So far I have been able to include c files at the top of NESC files, but this appears to make everything inline, thus taking up significant code and memory space. Is there a way to compile and link the C files such that they aren't created inline? Thanks, Hugh ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] NESC Linking
How is linking performed in tinyos-1.x and is there a *.lnk or similar file somewhere? Thanks, Hugh ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
