99 lines
2.7 KiB
C++
99 lines
2.7 KiB
C++
|
#include "IRremote.h"
|
||
|
|
#include "IRremoteInt.h"
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
// N N EEEEE CCCC
|
||
|
|
// NN N E C
|
||
|
|
// N N N EEE C
|
||
|
|
// N NN E C
|
||
|
|
// N N EEEEE CCCC
|
||
|
|
//==============================================================================
|
||
|
|
|
||
|
|
#define NEC_BITS 32
|
||
|
|
#define NEC_HDR_MARK 9000
|
||
|
|
#define NEC_HDR_SPACE 4500
|
||
|
|
#define NEC_BIT_MARK 560
|
||
|
|
#define NEC_ONE_SPACE 1690
|
||
|
|
#define NEC_ZERO_SPACE 560
|
||
|
|
#define NEC_RPT_SPACE 2250
|
||
|
|
|
||
|
|
//+=============================================================================
|
||
|
|
#if SEND_NEC
|
||
|
|
void IRsend::sendNEC (unsigned long data, int nbits)
|
||
|
|
{
|
||
|
|
// Set IR carrier frequency
|
||
|
|
enableIROut(38);
|
||
|
|
|
||
|
|
// Header
|
||
|
|
mark(NEC_HDR_MARK);
|
||
|
|
space(NEC_HDR_SPACE);
|
||
|
|
|
||
|
|
// Data
|
||
|
|
for (unsigned long mask = 1UL << (nbits - 1); mask; mask >>= 1) {
|
||
|
|
if (data & mask) {
|
||
|
|
mark(NEC_BIT_MARK);
|
||
|
|
space(NEC_ONE_SPACE);
|
||
|
|
} else {
|
||
|
|
mark(NEC_BIT_MARK);
|
||
|
|
space(NEC_ZERO_SPACE);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Footer
|
||
|
|
mark(NEC_BIT_MARK);
|
||
|
|
space(0); // Always end with the LED off
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
//+=============================================================================
|
||
|
|
// NECs have a repeat only 4 items long
|
||
|
|
//
|
||
|
|
#if DECODE_NEC
|
||
|
|
bool IRrecv::decodeNEC (decode_results *results)
|
||
|
|
{
|
||
|
|
long data = 0; // We decode in to here; Start with nothing
|
||
|
|
int offset = 1; // Index in to results; Skip first entry!?
|
||
|
|
|
||
|
|
// Check header "mark"
|
||
|
|
if (!MATCH_MARK(results->rawbuf[offset], NEC_HDR_MARK)) return false ;
|
||
|
|
offset++;
|
||
|
|
|
||
|
|
// Check for repeat
|
||
|
|
if ( (irparams.rawlen == 4)
|
||
|
|
&& MATCH_SPACE(results->rawbuf[offset ], NEC_RPT_SPACE)
|
||
|
|
&& MATCH_MARK (results->rawbuf[offset+1], NEC_BIT_MARK )
|
||
|
|
) {
|
||
|
|
results->bits = 0;
|
||
|
|
results->value = REPEAT;
|
||
|
|
results->decode_type = NEC;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check we have enough data
|
||
|
|
if (irparams.rawlen < (2 * NEC_BITS) + 4) return false ;
|
||
|
|
|
||
|
|
// Check header "space"
|
||
|
|
if (!MATCH_SPACE(results->rawbuf[offset], NEC_HDR_SPACE)) return false ;
|
||
|
|
offset++;
|
||
|
|
|
||
|
|
// Build the data
|
||
|
|
for (int i = 0; i < NEC_BITS; i++) {
|
||
|
|
// Check data "mark"
|
||
|
|
if (!MATCH_MARK(results->rawbuf[offset], NEC_BIT_MARK)) return false ;
|
||
|
|
offset++;
|
||
|
|
// Suppend this bit
|
||
|
|
if (MATCH_SPACE(results->rawbuf[offset], NEC_ONE_SPACE )) data = (data << 1) | 1 ;
|
||
|
|
else if (MATCH_SPACE(results->rawbuf[offset], NEC_ZERO_SPACE)) data = (data << 1) | 0 ;
|
||
|
|
else return false ;
|
||
|
|
offset++;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Success
|
||
|
|
results->bits = NEC_BITS;
|
||
|
|
results->value = data;
|
||
|
|
results->decode_type = NEC;
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
#endif
|