Hi Paul, Thanks for the good questions. I was trying to be overly concise in my introductory question, just in case it was a known problem and had a known...
20724
alex@...
list430
Sep 3, 2005 4:04 am
There is a line encodig called Mancester. This ecodes data and clock in the same stream. Alex ... From: "John Heritage" <john.heritage@...> To:...
20725
John Heritage
john_heritageuk
Sep 3, 2005 7:07 am
Thanks Al & William, Those are some interesting stories! I love the idea of a mud based data link. :) I had a look around on the net at precisely what a Jumbo...
20726
John Heritage
john_heritageuk
Sep 3, 2005 7:25 am
You have to know about EMI, ESD and stuff like that and then design in some appropriate protection. ... There's a lot of helpful information on interference,...
20727
rolf.freitag@...
flisk0
Sep 3, 2005 7:36 am
Hi, ... no, for Manchester coding you need a known frequency: http://en.wikipedia.org/wiki/Manchester_code It's the same with RS232 code: You can autodetect...
20728
John Heritage
john_heritageuk
Sep 3, 2005 7:39 am
Thanks Alex, I'll look into it. There's a city about 30 minutes from me called Manchester. :) Best wishes, John There is a line encodig called Mancester. This...
20729
Onestone
onestone_apc
Sep 3, 2005 8:00 am
... We had to undergo rigorous saftey tests because of this. We also tried coupling into one of the live lines, but this didn't work as well for obvious...
20730
Matthias Weingart
msp430@...
Sep 3, 2005 8:25 am
... Lol. Great game here - I want to see more - it is like a good boxing match ... M....
20731
Onestone
onestone_apc
Sep 3, 2005 8:32 am
Any system can be unreliable if it is badly designed. Like any other microcontroller the MSP430 cannot be expected to operate in a harsh electrical environment...
20732
Onestone
onestone_apc
Sep 3, 2005 8:33 am
So now your just a low calibre frog? I can't believe that, at least a frog .45 Al...
20733
Onestone
onestone_apc
Sep 3, 2005 8:44 am
... Well the stated requirement was for slow transfer rates, and a joint data/clock scheme. The solution presented was one of many possible schemes that would...
20734
alex@...
list430
Sep 3, 2005 1:39 pm
I beg to differ Rolf. Manchester is a bipolar line code. I do not see why the frequency is important ;) The man wanted to encode the clock over data and this...
20735
alex@...
list430
Sep 3, 2005 1:43 pm
... From: <rolf.freitag@...> To: <msp430@yahoogroups.com> Sent: Saturday, September 03, 2005 3:34 AM Subject: Re: [msp430] Clock & data lines ... the...
20736
alex@...
list430
Sep 3, 2005 1:44 pm
http://www.erg.abdn.ac.uk/users/gorry/course/phy-pages/man.html Alex ... From: <rolf.freitag@...> To: <msp430@yahoogroups.com> Sent: Saturday, September...
20737
alex@...
list430
Sep 3, 2005 6:28 pm
If you are interested in underground comm, you should google for "Cave Radio" For example, this is interesting :) ...
20738
Bevan Thistlethwaite
bevan_t_ca
Sep 4, 2005 6:39 am
John, Have you taken a look at the Dallas 1-wire protocol? http://www.maxim-ic.com/appnotes.cfm/appnote_number/2966 Bevan ... signal over the same wire as data...
20739
Bill Knight
wmk6341
Sep 4, 2005 2:06 pm
... Not necessarily. It is typical to use a preamble of a series of all 1's or 0's to allow the receiver to synchronize to the transmitter's data rate. ...
20740
Karl Adler
specific9
Sep 4, 2005 4:13 pm
... True. This is how your credit card is recorded and encoded, there is a preamble of aprox. 40 1's and zeros to allow synchronisation. Karl. ... ...
20741
hc08jb8
Sep 4, 2005 4:15 pm
Hello Guys A rather silly question, I have got a 50 cents electret mic bought from a local store, it did not come with any datasheet, however it has a marking...
20742
Micah Stevens
micahstev
Sep 4, 2005 6:06 pm
Just hook the two pins up, but make sure you have a voltage running to the input side of the mic. Electrets modify input voltage according to sound, rather...
20743
markl963
Sep 4, 2005 6:31 pm
Hi guys, Is possible to declare an unknown size array inside a structure? I need to store different lenght look-up tables. Thanks...
20744
Georg Ritter
msp430_isfun
Sep 4, 2005 7:22 pm
... You only will know the size of your array on runtime, did I understand that correctly? Then you have to think about how you reserve or resize the array's...
20745
Jonathan Kirwan
jondkirwan
Sep 5, 2005 3:01 am
... If the array is at the end of the structure, as in: struct X { int item1; float item2; double x[1]; }; If you then allocate something of the right size you...
20746
John Heritage
john_heritageuk
Sep 5, 2005 3:14 am
We had to undergo rigorous saftey tests because of this. We also tried coupling into one of the live lines, but this didn't work as well for obvious reasons. ...
20747
John Heritage
john_heritageuk
Sep 5, 2005 3:19 am
Thanks Bevan, 1-wire is something I'm looking at. However, I will have local power availble so even 1-wire is probably a bit too much. At the moment I'm still...
20748
hc08jb8
Sep 5, 2005 3:29 am
Hello Guys I am bit confused on setting PORT3 function in a F16XX device. I would like to use configure USART0 for SPI and USART1 for Serial comm, what value...
20749
Micah Stevens
micahstev
Sep 5, 2005 3:30 am
Depending on your mode, SPI or USART use different output pins.. if you look at the pinout of your device you will notice the spi port is mapped to different...
20750
hc08jb8
Sep 5, 2005 3:40 am
Thanks, got it now :-) ... you look ... to ... would ... what ... to make...
20751
hc08jb8
Sep 5, 2005 3:43 am
The problem is I dont know which of the pin is the input, no datasheet to find out, so is there any other way of finding out which pin is which. Thanks. Jay ...
20752
Clifford Heath
fred4fly
Sep 5, 2005 3:46 am
... availble ... I've no idea what relevance the existence of local power has...? One-wire doesn't mean you should work without local power, just that you ...
