Revision 0:d8a26e89c7f3, committed 2015-08-12

Comitter:

nobuki

Date:

Wed Aug 12 17:23:22 2015 +0000

Commit message:

a

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Aug 12 17:23:22 2015 +0000
@@ -0,0 +1,28 @@
+#include "mbed.h"
+
+DigitalIn g_digitalinIrReceiver(p20);
+Serial g_serial(USBTX, USBRX);
+
+int main()
+{
+    // デジタル入力ピンは、デフォルトで、内部プルダウンとなります（参考：https://developer.mbed.org/handbook/DigitalIn）
+    // 内部プルダウンの場合、IRセンサーからのHIGH電圧をLOW電圧と検知してしまうので、内部プルモードを「プルなし(PullNone)」にします。
+    g_digitalinIrReceiver.mode( PullNone ); // mode : PullUp, PullDown, PullNone, OpenDrain
+    g_serial.baud(115200);
+
+    Timer timer;
+    timer.start();
+    int iMicroSec_prev = timer.read_us();
+    int iState_prev = 1;
+    while(1)
+    {
+        int iState = g_digitalinIrReceiver;
+        if( iState != iState_prev )
+        {
+            iState_prev = iState;
+            int iMicroSec = timer.read_us();
+            g_serial.printf( "%d, ", iMicroSec - iMicroSec_prev );
+            iMicroSec_prev = iMicroSec;
+        }
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Aug 12 17:23:22 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/b9ad9a133dc7
\ No newline at end of file