Diff: ReceiverIR.cpp

Revision:

12:5833495063f7

Parent:

11:268cc2ab63bd

--- a/ReceiverIR.cpp	Mon Sep 20 00:54:59 2010 +0000
+++ b/ReceiverIR.cpp	Wed Jun 12 08:05:57 2019 +0000
@@ -22,7 +22,7 @@
     evt.fall(this, &ReceiverIR::isr_fall);
     evt.rise(this, &ReceiverIR::isr_rise);
     evt.mode(PullUp);
-    ticker.attach_us(this, &ReceiverIR::isr_wdt, 10 * 1000);
+    ticker.attach_us(this, &ReceiverIR::isr_wdt, 10 * 1000); // 0.1초
 }
 
 /**
@@ -73,19 +73,19 @@
     return nbits;
 }
 
-void ReceiverIR::init_state(void) {
+void ReceiverIR::init_state(void) { // init_state function
     work.c1 = -1;
     work.c2 = -1;
     work.c3 = -1;
     work.d1 = -1;
     work.d2 = -1;
     work.state = Idle;
-    data.format = RemoteIR::UNKNOWN;
+    data.format = RemoteIR::UNKNOWN;    // 코드 방식 미정, 모
     data.bitcount = 0;
     timer.stop();
     timer.reset();
     for (int i = 0; i < sizeof(data.buffer); i++) {
-        data.buffer[i] = 0;
+        data.buffer[i] = 0; // 8바이트 buffer 0으로 초기화
     }
 }
 
@@ -126,7 +126,7 @@
                 work.c3 = timer.read_us();
                 int a = work.c2 - work.c1;
                 int b = work.c3 - work.c2;
-                if (InRange(a, RemoteIR::TUS_NEC * 16) && InRange(b, RemoteIR::TUS_NEC * 8)) {
+                if (InRange(a, RemoteIR::TUS_NEC * 16) && InRange(b, RemoteIR::TUS_NEC * 8)) { // 9 sec, 4.5 sec
                     /*
                      * NEC.
                      */
@@ -172,11 +172,11 @@
         case Receiving:
             if (RemoteIR::NEC == data.format) {
                 work.d2 = timer.read_us();
-                int a = work.d2 - work.d1;
-                if (InRange(a, RemoteIR::TUS_NEC * 3)) {
-                    data.buffer[data.bitcount / 8] |= (1 << (data.bitcount % 8));
-                } else if (InRange(a, RemoteIR::TUS_NEC * 1)) {
-                    data.buffer[data.bitcount / 8] &= ~(1 << (data.bitcount % 8));
+                int a = work.d2 - work.d1;  // a = rising 했다가 falling 하는 그 사이 시간
+                if (InRange(a, RemoteIR::TUS_NEC * 3)) {    // 1인 경우
+                    data.buffer[data.bitcount / 8] |= (1 << (data.bitcount % 8));   // 무조건 1을 만들겠다
+                } else if (InRange(a, RemoteIR::TUS_NEC * 1)) { // 0인 경우
+                    data.buffer[data.bitcount / 8] &= ~(1 << (data.bitcount % 8));  // 무조건 0을 만들겠다
                 }
                 data.bitcount++;
 #if 0
@@ -232,6 +232,7 @@
             }
             break;
         case Received:
+            code = data.buffer[2];
             break;
         default:
             break;