Diff: apple_codes.h

Revision:

0:3110d82c59ff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/apple_codes.h	Tue Nov 15 11:32:21 2022 +0000
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+/********************************* RC5 control codes ******************************/
+// The Philips RC5 coce consists of 14 bits delivered in bi-phase Manchester encoding from
+// an IR LED on the remote.  This is picked up by a detector (e.g. a Vishay TSOP3741) which
+// outputs the demodulated bit stream as follows:-
+// First 2 bits are start bits - allow the detector AGC to stabilize and trigger decoding process
+// Third bit is the toggle bit - it remains at the same logic level as long as a key is depressed
+// and will change to the alternate state when the key is un/re-depressed or when a different
+// key is depressed
+// Bits 4~8 are the address bits and determine which piece of equipment is being controlled
+// Bits 9~14 are the command bits
+// As long as a key is depressed, the 14 bits will be sent by the remote controller in sequential
+// blocks with a 120ms delay between subsequent block transmissions
+//  See http://en.wikipedia.org/wiki/RC-5 for the codes
+
+// 0-9 NUMERIC KEYS 0 - 9 - not used in this implementation
+
+// unused commands and addresses have been commented out - simply un-comment them to use them 
+// but note that if you do this, you will have to decode them, otherwise they will just fall through
+// and be ignored by the decoder.  Only the ones un-commented out below are active in V1.0
+// Note you will also need to write the associated command processor functions 
+
+#define STANDBY 378      // toggle  power ON and OFF
+#define MUTE 442         // toggle output signal on and off
+#define VUP 464         
+#define VDOWN 432
+#define SELECT_R 480      // rotates input through inputs - must depress and then release each time
+#define SELECT_L 272      // rotates input through inputs - must depress and then release each time
+#define PREAMP 479          // this is the system code identifying an Apple Remote
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