23 Threads found on edaboard.com: Manchester Encoder And Decoder
The encoder is straight forward. You just xor the data with the baud clock. The output of the xor gate is the encoded data.
Here is an article on a manchester decoder...
PLD, SPLD, GAL, CPLD, FPGA Design :: 23.12.2009 00:16 :: RBB :: Replies: 2 :: Views: 1414
U can search on Xilinx site for manchester encoder and decoder implemented in VHDL.
Search on the site for their application with included source code also.
PLD, SPLD, GAL, CPLD, FPGA Design :: 09.05.2007 09:26 :: sachingorkhe :: Replies: 5 :: Views: 1086
I am trying to do manchester encoder and decoder by using AT89c2051 microcontroller in Keil C....
Can any one help me out.... How to Encode and decode? I want to implement the logic 0---->01 and 1------>10...
Please guys.... Its very important to do in Embedded C only.... (...)
PLD, SPLD, GAL, CPLD, FPGA Design :: 06.04.2010 22:37 :: harshita :: Replies: 9 :: Views: 4099
I need to code manchester encoder - decoder . I am very new to this .
Can any one provide the manchester encoder and decoder code in VHDL please .
Thanks in advance !
ASIC Design Methodologies and Tools (Digital) :: 01.09.2010 21:17 :: niraj_m :: Replies: 2 :: Views: 698
if you need to do please understand manchester encodeing and decoding. Then you can directly attach to the controller, without the decoder/encoder. Sometimes the teachers may be false.
"If you decided to run even you cannot stop."
Microcontrollers :: 18.10.2011 20:46 :: thunderboympm :: Replies: 7 :: Views: 1023
I want the part number of ICs for HDLC controller(single channel for 100kbps speed) and manchester encoder/decoder IC,does anyone have it?
Professional Hardware and Electronics Design :: 07.07.2008 07:58 :: 7rots51 :: Replies: 0 :: Views: 1503
manchester encoder or decoder?
The encoder is really simple to do
just change 1-> 01 and 0 -> 10 so for every 4 bits you produce 8 bits
the decoder is also simple . depending on how you will sample the received data
If you are using a ADC or just logic .you need to detect zero (...)
Microcontrollers :: 29.06.2009 20:48 :: eltonjohn :: Replies: 2 :: Views: 2216
The WZ-X01 and WZ-R01 are the transmitter and receiver respectfully. The HT-12E and HT12D are the encoder and decoder respectfully. The encoder and decoder take the raw data and encode/decode the data to ensure error free (...)
Electronic Elementary Questions :: 19.05.2011 21:55 :: bigdogguru :: Replies: 5 :: Views: 963
I am not have the source code, but i have the single solution for Your case:
* For transmitter, do You need:
- manchester encoder (The most simple!!!)
- The code for crypt the data with will send
* For receiver:
- manchester decoder
- The code for Decrypt the data received
Search in internet, some app notes (...)
Microcontrollers :: 28.04.2003 13:30 :: gorkin :: Replies: 1 :: Views: 3659
i think you better use the manchester encoding and decoding. Through ht12E and 12D can only send and receive 4 bit data only. The a1 - a7 is the address lines. If the address matches the "vt" line comes high.
Hobby Circuits and Small Projects Problems :: 23.09.2011 04:02 :: thunderboympm :: Replies: 6 :: Views: 1051
hi hi hi !!!!
I want to control the direction of my robot with RF remote control using 6 channels
for the direction ( left, forword, ....) I'm going to use sample signal like system binary
EX: for forword = 100101,
backword = 101011, ....
if I want to send the signals ; do i need use one of digital coding types like manches
Hobby Circuits and Small Projects Problems :: 13.06.2012 06:50 :: choura :: Replies: 6 :: Views: 822
Do you mean MIL-STD-1553B bus? because ARINC busses are different they go like 429, 649 etc.
Xilinx had a design competiton in which a 1553 bus analyzer was designed.
XAPP369: Handheld 1553 Bus Data Analyzer Application Note v1.0 (12/01)
I doubt that you would find a core for 1553. You might be lucky to just find the
PLD, SPLD, GAL, CPLD, FPGA Design :: 23.06.2004 03:49 :: delay :: Replies: 3 :: Views: 2840
Xilinx app note 339:
"This application note provides a functional description of VHDL and Verilog source code for a manchester encoder decoder."
By the way, that was the very first hit when I searched Google for this:
nrz manchester vhdl
PLD, SPLD, GAL, CPLD, FPGA Design :: 16.01.2005 02:38 :: echo47 :: Replies: 3 :: Views: 2553
there're a lot of code ( such as manchester, NRZ, ... and RC5).
please help me about tutorial of those code
Microcontrollers :: 15.08.2005 01:05 :: khongai :: Replies: 3 :: Views: 1040
I need an NRZI and Mancester encoder decoder documentation. Please if anybody have docs on implementation of these module share it. I'll be very thanks full.
ASIC Design Methodologies and Tools (Digital) :: 27.09.2007 04:33 :: master_picengineer :: Replies: 1 :: Views: 850
As far as I understand, the modules are not indended to transmit an UART protocol, rather than Holtek encoder/decoder data. It should be possible to use a similar protocol through an uP, but I don't see a clear specification. A modulation scheme as manchester encoding is mostly used for wireless UART transmission.
Hobby Circuits and Small Projects Problems :: 22.05.2009 12:26 :: FvM :: Replies: 66 :: Views: 9686
you need manchester encoding to make it reliable. OR
You can use a hardware encoder/decoder pair (look at holtek 12e & holtek 12d).
Without some kind of encoding, it may work, but it will not be reliable. (sometimes it works, other times it does not)
have a look at my post here:
RF, Microwave, Antennas and Optics :: 01.04.2010 17:23 :: ctownsend :: Replies: 12 :: Views: 3390
The modules accepts "Serial" Data, that does not necessarily mean you use the Usart pins on the micro.
To use those RF modules properly you need to use manchester Encoding otherwise you will never find your transmission among all the other 433mhz signals.
Have a look at this tutorial for guidance
Microcontrollers :: 10.04.2010 04:55 :: wp100 :: Replies: 4 :: Views: 2013
i m workin on my final term project ,i need to implement 1553 bus interface card on fpga , i have done with the encoder part of it and now workin on decoder , can sm1 help me for the logic , or even the verilog code for the decoder .
PLD, SPLD, GAL, CPLD, FPGA Design :: 21.04.2010 01:49 :: ali_bukhari :: Replies: 0 :: Views: 1363
Practically using rf modules through serial port is not reliable.
ht12 series uses manchester encoding technique. It can be implemented in 8051 controller.
Here is a tutorial
Data Encoding Techniques, manchester encoding, 8b/10b
Microcontrollers :: 21.11.2010 03:10 :: nandhu015 :: Replies: 4 :: Views: 1626
Always use these type of modems with HT12E(encoder) and HT12D(decoder). These chips will look after (manchester)encoding and decoding.
For more details and circuit look at the datasheet of those ic.
Microcontrollers :: 05.01.2011 00:16 :: nandhu015 :: Replies: 3 :: Views: 1526
You can have a reference to some sample code about 8b/10b and manchester endec from xilinx.com. you can also try some ampp core from if you are altera user.
PLD, SPLD, GAL, CPLD, FPGA Design :: 05.10.2004 03:03 :: cawan :: Replies: 5 :: Views: 3163
you can use RX706 without encoder/decoder.
try with manchester encoding/decoding.
HT12D and HT12E
Microcontrollers :: 06.09.2012 08:51 :: Jestin_cubetech :: Replies: 1 :: Views: 848