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Zhane
Joined: 02 Feb 2008
Posts: 85
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 29 Feb 2008 13:35 RF & PIC |
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say i have a pair of AM receiver and transmitter... how should I use it to send data from 1 receiver to 1 transmitter end?
should I use uart?
how should I encode the data? I've read about manchester encoding..but it's rather complex. does anyone has the C source for it?
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rajeshkumar123
Joined: 27 Dec 2007
Posts: 179
Helped: 19
Location: Chennai-India
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29 Feb 2008 15:24 Re: RF & PIC |
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HI,
U have to use the UART here.
First you have to send preambles for proper reception and sync word for every packet to ensure byte Synchronisation
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Zhane
Joined: 02 Feb 2008
Posts: 85
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29 Feb 2008 15:31 Re: RF & PIC |
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dont really get you...
1 packet is 8N1?
so i have to send 2 packets of 8bit data?
erm...how can i receive 2 packets of them?
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rajeshkumar123
Joined: 27 Dec 2007
Posts: 179
Helped: 19
Location: Chennai-India
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01 Mar 2008 17:02 Re: RF & PIC |
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HI,
A packet means it is a collection of bytes. Preamble is sent first and then the sync word then the actual data finally the CRC for error detection.I hope u got it.
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01 Mar 2008 17:02 Ads |
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Zhane
Joined: 02 Feb 2008
Posts: 85
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02 Mar 2008 14:28 Re: RF & PIC |
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i tried.. sending 0xFF all the time, and only data when required.
my receiver... ignores all 0xFF, and only decode non- 0xFF
but.. doesnt quite respond to the way i want it to be
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