Alejandro Marin
impresion en LCD con boton de incremento y decremento encada variable en el LCD
Revision 0:6c9cb98ad497, committed 2013-10-16
- Comitter:
- amarincan
- Date:
- Wed Oct 16 16:38:18 2013 +0000
- Commit message:
- Tarea1
Changed in this revision
diff -r 000000000000 -r 6c9cb98ad497 DebouncedIn.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/DebouncedIn.cpp Wed Oct 16 16:38:18 2013 +0000
@@ -0,0 +1,91 @@
+#include "DebouncedIn.h"
+#include "mbed.h"
+
+/*
+ * Constructor
+ */
+DebouncedIn::DebouncedIn(PinName in)
+ : _in(in) {
+
+ // reset all the flags and counters
+ _samples = 0;
+ _output = 0;
+ _output_last = 0;
+ _rising_flag = 0;
+ _falling_flag = 0;
+ _state_counter = 0;
+
+ // Attach ticker
+ _ticker.attach(this, &DebouncedIn::_sample, 0.005);
+}
+
+void DebouncedIn::_sample() {
+
+ // take a sample
+ _samples = _samples >> 1; // shift left
+
+ if (_in) {
+ _samples |= 0x80;
+ }
+
+ // examine the sample window, look for steady state
+ if (_samples == 0x00) {
+ _output = 0;
+ }
+ else if (_samples == 0xFF) {
+ _output = 1;
+ }
+
+
+ // Rising edge detection
+ if ((_output == 1) && (_output_last == 0)) {
+ _rising_flag++;
+ _state_counter = 0;
+ }
+
+ // Falling edge detection
+ else if ((_output == 0) && (_output_last == 1)) {
+ _falling_flag++;
+ _state_counter = 0;
+ }
+
+ // steady state
+ else {
+ _state_counter++;
+ }
+
+ // update the output
+ _output_last = _output;
+
+}
+
+
+
+// return number of rising edges
+int DebouncedIn::rising(void) {
+ int return_value = _rising_flag;
+ _rising_flag = 0;
+ return(return_value);
+}
+
+// return number of falling edges
+int DebouncedIn::falling(void) {
+ int return_value = _falling_flag;
+ _falling_flag = 0;
+ return(return_value);
+}
+
+// return number of ticsk we've bene steady for
+int DebouncedIn::steady(void) {
+return(_state_counter);
+}
+
+// return the debounced status
+int DebouncedIn::read(void) {
+ return(_output);
+}
+
+// shorthand for read()
+DebouncedIn::operator int() {
+ return read();
+}
\ No newline at end of file
diff -r 000000000000 -r 6c9cb98ad497 DebouncedIn.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/DebouncedIn.h Wed Oct 16 16:38:18 2013 +0000
@@ -0,0 +1,32 @@
+#include "mbed.h"
+
+ class DebouncedIn {
+ public:
+ DebouncedIn(PinName in);
+
+ int read (void);
+ operator int();
+
+ int rising(void);
+ int falling(void);
+ int steady(void);
+
+ private :
+ // objects
+ DigitalIn _in;
+ Ticker _ticker;
+
+ // function to take a sample, and update flags
+ void _sample(void);
+
+ // counters and flags
+ int _samples;
+ int _output;
+ int _output_last;
+ int _rising_flag;
+ int _falling_flag;
+ int _state_counter;
+
+ };
+
+
diff -r 000000000000 -r 6c9cb98ad497 TextLCD.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TextLCD.lib Wed Oct 16 16:38:18 2013 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/simon/code/TextLCD/#44f34c09bd37
diff -r 000000000000 -r 6c9cb98ad497 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Oct 16 16:38:18 2013 +0000
@@ -0,0 +1,121 @@
+#include "mbed.h"
+#include "DebouncedIn.h"
+#include "TextLCD.h"
+
+TextLCD lcd(PTB10, PTB11, PTE2, PTE3, PTE4, PTE5); // rs, e, d4-d7
+int i,Sp=0,Kp,Ki,Kd;
+DigitalOut l1(LED1);
+DigitalOut l2(LED2);
+int main()
+{
+ DebouncedIn button1(PTC12);
+ DebouncedIn button2(PTC13);
+ DebouncedIn button3(PTC16);
+ lcd.writeCommand(0x0E);
+ lcd.printf("Sp= Kp=");
+ lcd.locate(0,1);
+ lcd.printf("Ki= Kd=");
+ lcd.locate(2,0);
+ lcd.printf("=");
+
+ while(1) {
+
+ if(button1.falling()) {
+
+ switch(i) {
+ case 0:
+ lcd.locate(2,0);
+ lcd.printf("= ");
+ lcd.locate(3,0);
+ lcd.printf("%d",++Sp);
+
+ break;
+ case 1:
+ lcd.locate(10,0);
+ lcd.printf("= ");
+ lcd.locate(11,0);
+ lcd.printf("%d",++Kp);
+ break;
+ case 2:
+
+ lcd.locate(2,1);
+ lcd.printf("= ");
+ lcd.locate(3,1);
+ lcd.printf("%d",++Ki);
+ break;
+ case 3:
+ lcd.locate(10,1);
+ lcd.printf("= ");
+ lcd.locate(11,1);
+ lcd.printf("%d",++Kd);
+ break;
+ }
+ }
+ if(button2.falling()) {
+ switch(i) {
+ case 0:
+ if(Sp<0) {
+ Sp=0;
+ }
+ lcd.locate(2,0);
+ lcd.printf("= ");
+ lcd.locate(3,0);
+ lcd.printf("%d",Sp--);
+ break;
+ case 1:
+ if(Kp<0) {
+ Kp=0;
+ }
+ lcd.locate(10,0);
+ lcd.printf("= ");
+ lcd.locate(11,0);
+ lcd.printf("%d",Kp--);
+ break;
+ case 2:
+
+ if(Ki<0) {
+ Ki=0;
+ }
+ lcd.locate(2,1);
+ lcd.printf("= ");
+ lcd.locate(3,1);
+ lcd.printf("%d",Ki--);
+ break;
+ case 3:
+
+ if(Kd<0) {
+ Kd=0;
+ }
+ lcd.locate(10,1);
+ lcd.printf("= ");
+ lcd.locate(11,1);
+ lcd.printf("%d",Kd--);
+ break;
+ }
+ }
+ if(button3.falling()) {
+ i++;
+ if(i>3) {
+ i=0;
+ }
+ switch (i) {
+ case 0:
+ lcd.locate(2,0);
+ lcd.printf("=");
+ break;
+ case 1:
+ lcd.locate(10,0);
+ lcd.printf("=");
+ break;
+ case 2:
+ lcd.locate(2,1);
+ lcd.printf("=");
+ break;
+ case 3:
+ lcd.locate(10,1);
+ lcd.printf("=");
+ break;
+ }
+ }
+ }
+}
\ No newline at end of file
diff -r 000000000000 -r 6c9cb98ad497 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed Oct 16 16:38:18 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/a9913a65894f \ No newline at end of file