[Tinyos-help] HDLC problem with BaseStationCC2420

[Michael Schippling]

I believe that "they" changed the message structure slightly in T2
so as to be incompatible with any previous host software...Look
into the equivalent of types/AM.h to see what needs to be modified.

MS

Hristo Bojkov wrote:
> Hello tinyOS coders,
>  
> I am new to TinyOS2. I have used TinyOS 1.1 for 6 months. When I tried 
> to switch our application to TinyOS2, I discovered strange problem. The 
> packets that I've received from BaseStationCC2420 are not in HDLC format 
> as the packets were from TOSBase of TOS1.1. I read through app.c file 
> and there in the code I saw files that are related to Serial 
> communication and HDLC, but still the packets are strange. There is no 
> FLAG byte 7E, also the 42 byte showing the NoACK type is missing, I am 
> receiving just bytes without known for me format. The BaseStationCC2420 
> is compiled with "make telosb" and no change is made. The receiving 
> application on PC is the same which we use for TOS1.1 and is capable of 
> decoding HDLC.
>  
> This is example of the received bytes, and there is no pause, I just cut 
> the lines for the mail, they are consecutive:
> 
> 4788C86C4C442764A4EB9FF47C00FA080821000A0EC4A464A4A4A464E
> 
> 4A4A4A5FFF07C00FA080821000A0ECFE8C9A3F7868AC0C9A1CE32321
> 
> EE47C00FA080821000A0F04E4E4246464A46764A4AABFF07C00FA080821000A0F0F242
> 
> Do I miss something?
> 
>  Is there a setting I haven't set for HDLC to be used for encoding?
> 
>  
> 
> Platform: Timote Sky
> 
> Host OS: WinXP
> 
>  
> 
>  
> 
> 		
> 
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