[Tinyos-help] Reading the raw data from the receiver on the PC over the UART!

[Ruoshui Liu]

As you said in ur reply that "You shouldn't have to fiddle with any code 
to get this working and they provide a reasonable basis for your own 
development", but the thing is I have one application already installed 
in the receiver. Therefore, in this case, I need to modify the TOSBase 
to be adaptable with my application in the receiver. Do you think so?

I know my thought is obviously naive, but I have to say that can I just 
simply call:

call DataMsg.send(TOS_UART_ADDR, sizeof(CountMsg_t), &msg);

to ask the receiver to send the received raw data to the host PC via 
UART while it is receiving the data from the transmitter?

Thank you very much!

Best regards,
Ruoshui

Michael Schippling wrote:
> I don't use T2 so this should be taken under advisement...
>
> It may be that the dest addr is FFFF because it gets overwritten
> with the UART address when being forwarded. There is no src addr
> in the standard header (unless this changed in T2), but it is
> often included in the message body. If that is getting overwritten
> all bets are off. In T1, the UART message format is the mica2 format
> in tos/types/AM.h. TOSBase converts from micaz to mica2 format unless
> you do some special magic, and the 2420 radio fields (lqi, etc) are
> dropped. Tmotes with Boomerang do not do this, so the behavior is
> different on different platforms/versions. RSSI is tagged on to the
> end of messages in receive() but is not part of the UART forwarded
> message so you have no way to see it on the PC side. Folks have fixed
> this by modifying the receive() in the base-station to grab the RSSI
> and overwrite some field in the message before forwarding.
>
> So I guess the message is that you'll have to dig through your base-
> station code to see what it is really doing...also search this list
> for RSSI grabbing advice.
>
> MS
>
>
> Ittipong Khemapech wrote:
>> Hi,
>>
>> I am trying to do the same thing but in TinyOS 2.x. I am modifying 
>> BlinkToRadio and BaseStation to vart transmission power level (TX) 
>> and see how RSSI changes. I have successfully change the TX.
>>
>> I've been using the tools/java/net/tinyos/tools/Listen.java program 
>> by following Lesson 4 in the tutorial. There are several problems 
>> that I am having:
>>
>> 1. I've got FF FF for both source and destination addresses.
>> 2. I have no clue where to start getting RSSI and LQI readings.
>>
>> Any suggestions would be appreciated.
>>
>> Best wishes,
>> Ittipong
>>
>> On 03/12/2007, *Michael Schippling* <schip at santafe.edu 
>> <mailto:schip at santafe.edu>> wrote:
>>
>>     In TOS1.x the OscilloscopeRF and SenseToRfm demo apps send ADC 
>> readings
>>     over the radio. TOSBase is used at the PC receiving end to 
>> forward the
>>     messages through the UART into the host PC. Oscope has a host side
>>     display
>>     program, or you can use the tools/java/net/tinyos/tools/Listen.java
>>     program
>>     to peek at the messages themselves. You shouldn't have to fiddle 
>> with
>>     any code to get this working and they provide a reasonable basis for
>>     your own development.
>>
>>     You should also read through the doc/tutorial where most of this is
>>     covered.
>>
>>     MS
>>
>>
>>     Ruoshui Liu wrote:
>>      > Dear all,
>>      >
>>      > Currently, I have implemented a single transmission link
>>     containing one
>>      > transmitter and one receiver. What I want to do next is to use
>>     the PC or
>>      > laptop to read the received raw data from the receiver over 
>> the UART
>>      > channel. I know I have to plug the receiver to the programming 
>> board
>>      > acting as the basestation, and I think the start point is 
>> probably to
>>      > modify the TOSBase. However, there are many other functions
>>     included in
>>      > the TOSBase application. What I want to do is just the simple 
>> job to
>>      > send the raw data back to the PC via UART. Could anyone tell me
>>     how to
>>      > simplify this? I mean what is the core part or key function I
>>     should use
>>      > in order to read the raw data. Thank you very much!
>>      >
>>      > Best regards,
>>      > Ruoshui Liu
>>      > _______________________________________________
>>      > Tinyos-help mailing list
>>      > Tinyos-help at Millennium.Berkeley.EDU
>>     <mailto:Tinyos-help at Millennium.Berkeley.EDU>
>>      >
>>     
>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
>>
>>     --
>>     Platform: WinXP/Cygwin
>>     TinyOS version: 1.x, Boomerang
>>     Programmer: MIB510
>>     Device(s): Mica2, MicaZ, Tmote
>>     Sensor board: homebrew
>>
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