Embedded Class - Final Project2
Infrared remote library for Arduino: send and receive infrared signals with multiple protocols Port from Arduino-IRremote https://github.com/z3t0/Arduino-IRremote
Revision 8:0650578366fd, committed 2019-06-16
- Comitter:
- eunmango
- Date:
- Sun Jun 16 04:36:58 2019 +0000
- Parent:
- 7:c82a0d54a024
- Commit message:
- dd
Changed in this revision
| irRecv.cpp | Show annotated file Show diff for this revision Revisions of this file |
| ir_NEC.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/irRecv.cpp Thu Mar 10 15:39:34 2016 +0000
+++ b/irRecv.cpp Sun Jun 16 04:36:58 2019 +0000
@@ -102,11 +102,11 @@
void IRrecv::enableIRIn ( )
{
_ticker.detach();
- _ticker.attach_us(this, &IRrecv::timer_isr, USECPERTICK);
+ _ticker.attach_us(this, &IRrecv::timer_isr, USECPERTICK); // 100ms마다, "timer_isr" 메소드 실행
// Initialize state machine variables
- irparams.rcvstate = STATE_IDLE;
- irparams.rawlen = 0;
+ irparams.rcvstate = STATE_IDLE; // irparams라는 구조체의 muchine state를 의미하는 변수에 STATE_IDLE 상태(아마도 초기상태) 할당
+ irparams.rawlen = 0; // raw buffer의 length 0으로 초기화
}
//+=============================================================================
--- a/ir_NEC.cpp Thu Mar 10 15:39:34 2016 +0000
+++ b/ir_NEC.cpp Sun Jun 16 04:36:58 2019 +0000
@@ -21,27 +21,27 @@
#if SEND_NEC
void IRsend::sendNEC (unsigned long data, int nbits)
{
- // Set IR carrier frequency
- enableIROut(38);
+ // Set IR carrier frequency
+ enableIROut(38);
- // Header
- mark(NEC_HDR_MARK);
- space(NEC_HDR_SPACE);
+ // 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);
- }
- }
+ // 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
+ // Footer
+ mark(NEC_BIT_MARK);
+ space(0); // Always end with the LED off
}
#endif
@@ -51,48 +51,71 @@
#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!?
+ 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 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 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 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++;
- // 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++;
+ int forInverse[32] = {0};
+ int j = 31;
+ // 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++;
- }
+ if (MATCH_SPACE(results->rawbuf[offset], NEC_ONE_SPACE ))
+ forInverse[i] = 1;
+ else if (MATCH_SPACE(results->rawbuf[offset], NEC_ZERO_SPACE))
+ forInverse[i] = 0;
+ else return false ;
+ offset++;
+
+ }
+
- // Success
- results->bits = NEC_BITS;
- results->value = data;
- results->decode_type = NEC;
+ for(int j = 0; j < 8; j++){ //
+ data = (data << 1) | forInverse[j];
+ }
+ for(int j = 8; j < 16; j++){ //
+ data = (data << 1) | forInverse[j];
+ }
+ for(int j = 23; j > 15; j--){ //
+ data = (data << 1) | forInverse[j];
+ }
+ for(int j = 31; j > 23; j--){ //
+ data = (data << 1) | forInverse[j];
+ }
- return true;
+
+
+
+ // Success
+ results->bits = NEC_BITS;
+ results->value = data;
+ results->decode_type = NEC;
+
+ return true;
}
-#endif
+#endif
\ No newline at end of file