IR remote control - Revision history

Heth at 08:37, 10 March 2014

2014-03-10T08:37:08Z

Heth: /* RC5 Example */

2014-03-09T11:33:45Z

‎RC5 Example

Heth: Created page with "=IRP Notation= ==RC5 Example== UEI protocol: 00E8 '''IRP notation: {36k,msb,889}<1,-1|-1,1>(1:1,~F:1:6,T:1,D:5,F:6,^114m)+''' *EFC translation: 6-bit MSB comp with 2-bit mini-c..."

2014-03-08T10:33:38Z

Created page with "=IRP Notation= ==RC5 Example== *UEI protocol: 00E8 *'''IRP notation: {36k,msb,889}<1,-1|-1,1>(1:1,~F:1:6,T:1,D:5,F:6,^114m)+''' *EFC translation: 6-bit MSB comp with 2-bit mini-c..."

New page

=IRP Notation=
==RC5 Example==
*UEI protocol: 00E8
*'''IRP notation: {36k,msb,889}<1,-1|-1,1>(1:1,~F:1:6,T:1,D:5,F:6,^114m)+'''
*EFC translation: 6-bit MSB comp with 2-bit mini-combo

The first section ''{36k,msb,889}'' is called the GeneralSpec section and describes the carrier frequency order of transmission and the manchester bit slot time length.
*36k defines 36KHz modulation of the infrared light with a 50/50 duty cycle
*msb defines the most significant bit is transmitted first
*889 defines the slottime is 889uS.

The next section ''<1,-1|-1,1>'' is called the bitspec and specifies the rules for translating a bit sequence into a IR signal
*1,-1 means "0" is transmitted as a IR on for one slottime and off for one slottime
*-1,1 means "1" is transmitted as a IR off for one slottime and on for one slottime

The next section ''(1:1,~F:1:6,T:1,D:5,F:6,^114m)+'' is called the bitfield section and describes the
{|border=1 ;style="margin: 0 auto; text-align: center;cellpadding="5" cellspacing="0"
|+ RC-5 IRP bitfield notation translation
|- bgcolor=lightgrey
! Section !! Bit !! value || Explanation
|-
| 1:1 || 1 || 1 || defines one startbit as a binary 1. First bit
|-
|~F:1:6 || 2 || 0 or 1 || ~ means complement bit(s), F is from the function field, 1:6 means transmit 1 bit after the first 6 bit. Meaning transmit the complementet bit 7 of the F field. This extends the F field from 6 to 7 bits on some transmitters
|-
| T:1 || 3 || 0 or 1 || Transmit one toggle bit. A control bit, which toggles with each button press. his allows the receiving device to distinguish between two successive button presses (such as "6", "6" for "66") as opposed to the user simply holding down the button and the repeating commands being interrupted by a person walking by, for example.
|-
| D:5 || 4 to 8 || 0 to 31 || A five bit system address to select device for example TV
|-
| F:6 || 9 to 14 || 0 to 63 || A six bit command combined with the T:1 toggle bit giving 7 bit command 0 to 127.
|-
| ^114m)+ || - || - || Trailing gap 114 mSec. With auto repeat repeats every 114 mSec.
|-
|}

==Links==
*[http://www.hifi-remote.com/wiki/index.php?title=IRP_Notation IRP Notation] from [http://www.hifi-remote.com/ www.hifi-remote.com]

← Older revision		Revision as of 08:37, 10 March 2014
Line 36:		Line 36:
	==Links==		==Links==
	*[http://www.hifi-remote.com/wiki/index.php?title=IRP_Notation IRP Notation] from [http://www.hifi-remote.com/ www.hifi-remote.com]		*[http://www.hifi-remote.com/wiki/index.php?title=IRP_Notation IRP Notation] from [http://www.hifi-remote.com/ www.hifi-remote.com]
		+	*[http://mars.tekkom.dk/data/embedded/IR%20receiver.zip IR receiver Example project for STM32C]

@@ Line 22: / Line 22: @@
 | 1:1 || 1 || 1 || defines one startbit as a binary 1. First bit
 |-
-|~F:1:6 || 2 || 0 or 1 || ~ means complement bit(s), F is from the function field, 1:6 means transmit 1 bit after the first 6 bit. Meaning transmit the complementet bit 7 of the F field. This extends the F field from 6 to 7 bits on some transmitters
+|~F:1:6 || 2 || 0 or 1 || ~ means complement bit(s), F is from the function command field, 1:6 means transmit 1 bit after the first 6 bit. Meaning transmit the complementet bit 7 of the F field. This extends the F field from 6 to 7 bits on some transmitters
 |-
 | T:1  || 3 || 0 or 1 || Transmit one toggle bit. A control bit, which toggles with each button press. his allows the receiving device to distinguish between two successive button presses (such as "6", "6" for "66") as opposed to the user simply holding down the button and the repeating commands being interrupted by a person walking by, for example.
@@ Line 28: / Line 28: @@
 | D:5 || 4 to 8 || 0 to 31 || A five bit system address to select device for example TV
 |-
-| F:6 || 9 to 14 || 0 to 63 || A six bit command combined with the T:1 toggle bit giving 7 bit command 0 to 127.
+| F:6 || 9 to 14 || 0 to 63 || A six bit function command combined with the T:1 toggle bit giving 7 bit command 0 to 127.
 |-
 | ^114m)+ || - || - || Trailing gap 114 mSec. With auto repeat repeats every 114 mSec.

IR remote control - Revision history

Heth at 08:37, 10 March 2014

Heth: /* RC5 Example */

Heth: Created page with "=IRP Notation= ==RC5 Example== *UEI protocol: 00E8 *'''IRP notation: {36k,msb,889}<1,-1|-1,1>(1:1,~F:1:6,T:1,D:5,F:6,^114m)+''' *EFC translation: 6-bit MSB comp with 2-bit mini-c..."

Heth: Created page with "=IRP Notation= ==RC5 Example== UEI protocol: 00E8 '''IRP notation: {36k,msb,889}<1,-1|-1,1>(1:1,~F:1:6,T:1,D:5,F:6,^114m)+''' *EFC translation: 6-bit MSB comp with 2-bit mini-c..."