Tedd OKANO
Make: Tokyo Meeting 06 (MTM06), standalone LED blinking demo (using PWM) Make: Tokyo Meeting 06 (MTM06)でNXPスタッフの胸(腹?)で光っていたmbed．このコードを使用していました
Revision 0:1060d9f7c8f7, committed 2010-11-21
- Comitter:
- okano
- Date:
- Sun Nov 21 06:47:36 2010 +0000
- Commit message:
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
diff -r 000000000000 -r 1060d9f7c8f7 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sun Nov 21 06:47:36 2010 +0000
@@ -0,0 +1,152 @@
+#include "mbed.h"
+
+PwmOut led1(LED1);
+PwmOut led2(LED2);
+PwmOut led3(LED3);
+PwmOut led4(LED4);
+
+PwmOut led[ 4 ] = {led4, led3, led2, led1 };
+
+#define UPDATE_RATE 100.0
+
+class Blinker {
+public:
+
+ typedef enum {
+ OFF,
+ ON,
+ STAY,
+ UP,
+ DOWN,
+ UPDOWN
+ } Mode;
+
+ Blinker( PinName pin ) :
+ output( pin ),
+ mode( UPDOWN ),
+ state( false ),
+ intensity( 0.0 ),
+ rate( 1.0 / UPDATE_RATE ),
+ direction( true ) {
+ t.attach( this, &Blinker::blinker_maintain, 1.0 / UPDATE_RATE );
+ output.period_ms( 1 );
+ output = intensity;
+ }
+
+ void start( void ) {
+ state = true;
+ }
+
+ void stop( void ) {
+ state = false;
+ }
+
+ void set_mode( Mode m ) {
+ mode = m;
+ }
+
+ void set_initial_intensity( float v ) {
+ intensity = v;
+ }
+
+ void set_frequency( float f ) {
+ rate = f / UPDATE_RATE;
+ }
+
+private:
+ void blinker_maintain( void ) {
+
+ if ( OFF == state )
+ return;
+
+ switch ( mode ) {
+ case OFF :
+ intensity = 0.0;
+ break;
+ case ON :
+ intensity = 1.0;
+ break;
+ case STAY :
+ break;
+ case UP :
+ intensity += rate;
+ intensity = (1.0 < intensity) ? 0.0 : intensity;
+ break;
+ case DOWN :
+ intensity -= rate;
+ intensity = (intensity < 0.0) ? 1.0 : intensity;
+ break;
+ case UPDOWN :
+ direction = (intensity <= 0.0) ? true : direction;
+ direction = (1.0 <= intensity) ? false : direction;
+ intensity += direction ? (rate * 2.0) : -(rate * 2.0);
+ break;
+ default :
+ break;
+ }
+
+ output = intensity * intensity;
+ }
+
+ PwmOut output;
+ Ticker t;
+
+ Mode mode;
+ int state;
+ float intensity;
+ float rate;
+ float direction;
+};
+
+//Blinker b( LED1 );
+Blinker b[ 4 ] = { LED4, LED3, LED2, LED1 };
+
+
+int main() {
+
+
+ for ( int i = 0; i < 4; i++ ) {
+ b[ i ].set_frequency( 2 );
+ b[i].start();
+ }
+
+ while ( 1 ) {
+
+ for ( int i = 0; i < 4; i++ ) {
+ b[ i ].set_mode( Blinker::DOWN );
+ b[ i ].set_initial_intensity( 0.25 * (float)i );
+ }
+
+ wait( 2.0 );
+
+ for ( int n = 0; n < 40; n++ ) {
+ for ( int i = 0; i < 4; i++ ) {
+ b[ i ].set_mode( rand() & 0x1 ? Blinker::ON : Blinker::OFF );
+ }
+ wait( 0.05 );
+ }
+
+ for ( int i = 0; i < 4; i++ ) {
+ b[ i ].set_mode( Blinker::DOWN );
+ b[ i ].set_initial_intensity( 1.0 - (0.25 * (float)i) );
+ }
+
+ wait( 2.0 );
+
+ for ( int i = 0; i < 4; i++ ) {
+ b[ i ].set_mode( Blinker::UPDOWN );
+ b[ i ].set_initial_intensity( 0 );
+ }
+
+ wait( 2.0 );
+
+ for ( int i = 0; i < 4; i++ ) {
+ b[ i ].set_mode( Blinker::UPDOWN );
+ b[ i ].set_initial_intensity( (i & 0x1) ? 1 : 0 );
+ }
+
+ wait( 2.0 );
+
+ }
+
+}
diff -r 000000000000 -r 1060d9f7c8f7 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sun Nov 21 06:47:36 2010 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/e2ac27c8e93e