Colin Monroe
homework 12.2 for SSD applied algorithms and architecture
Revision 0:a4095918961b, committed 2016-11-06
- Comitter:
- CKMonroe
- Date:
- Sun Nov 06 07:06:44 2016 +0000
- Commit message:
- V1 of homework 12.2 - recursion on the KL board
Changed in this revision
diff -r 000000000000 -r a4095918961b SLCD.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SLCD.lib Sun Nov 06 07:06:44 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/Sissors/code/SLCD/#ef2b3b7f1b01
diff -r 000000000000 -r a4095918961b TSI.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TSI.lib Sun Nov 06 07:06:44 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/TSI/#1a60ef257879
diff -r 000000000000 -r a4095918961b main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sun Nov 06 07:06:44 2016 +0000
@@ -0,0 +1,120 @@
+#include "mbed.h"
+#include <math.h>
+#include "TSISensor.h"
+#include "SLCD.h"
+
+#define NUMBUTS 2
+#define LBUT PTC12 // port addresses for buttons
+#define RBUT PTC3
+
+#define ARGUMENTSTATE 0 //states to operate in
+#define COUNTSTATE 1
+
+#define TSILIMIT 0.01
+#define LCDCHARLEN 10
+#define DATAINTERVAL 0.1
+#define BUTTONTIME 0.1
+#define PROGNAME "kl46z_recursion_v1\n\r"
+
+SLCD slcd; //define LCD display
+Serial pc(USBTX, USBRX);
+
+Timer dataTimer;
+Timer ButtonTimer; // for reading button states
+DigitalIn buttons[NUMBUTS] = {RBUT, LBUT};
+float tsidata;
+int displayState = 0; //start program in argument state
+bool recursion = false;
+
+void initialize_global_vars(){
+ pc.printf(PROGNAME);
+ // set up DAQ timers
+ ButtonTimer.start();
+ ButtonTimer.reset();
+ dataTimer.start();
+ dataTimer.reset();
+}
+
+void LCDMess(char *lMess){
+ slcd.Home();
+ slcd.clear();
+ slcd.printf(lMess);
+}
+
+void backward_count(float n,int delta,int min_num){
+ pc.printf("\n Number: %2.0f\n\r", n);
+ if (n <= min_num){
+ recursion = false; //set flag to false to prevent repeats
+ return;
+ }
+ else {
+ backward_count(n-delta, delta, min_num);
+ }
+}
+
+int main(void) {
+ int i;
+ char lcdData[LCDCHARLEN];
+ TSISensor tsi;
+ float tempTSI;
+ PwmOut gled(LED_GREEN);
+ PwmOut rled(LED_RED);
+
+ initialize_global_vars();
+
+ while (true) {
+ if (ButtonTimer > BUTTONTIME){
+ for (i=0; i<NUMBUTS; i++){ // index will be 0 or 1
+ if(!buttons[i]) {
+ displayState = i; //set display state
+ } // if ! buttons
+ }// for loop to look at buttons
+
+ ButtonTimer.reset();
+ }//end if buttonTimer
+
+ //right button - ARGUMENT STATE(red led)
+ //this state uses the slider to read a value, which
+ //will be passed into a simple recursive function later
+ if (displayState == ARGUMENTSTATE){
+
+ //turn on red led
+ rled = 0.0;
+ gled = 1.0;
+
+ //if statement to read tsi
+ if(dataTimer.read() > DATAINTERVAL){
+ dataTimer.reset();
+ tempTSI = tsi.readPercentage();
+ if (tempTSI > TSILIMIT){
+ tsidata = (tempTSI*100)/2;
+ }
+ }// end if statement to read tsi
+
+ //send data to LCD
+ //range 2-50
+ sprintf (lcdData,"%2.0f", tsidata );
+
+ recursion = true; //set bool to true so that the function can run
+ //in count mode
+ } //end argument state
+
+ //left button - COUNT STATE (green led)
+ else if (displayState == COUNTSTATE){
+ //turn on green led
+ rled = 1.0;
+ gled = 0.0;
+
+ //code for recursion goes here
+ //2nd and 3rd passed variables are hardcoded here
+ //2nd variable: delta
+ if (recursion == true){
+ recursion = false; //set recursion bool to false to prevent
+ //repeat function calls from here
+ backward_count(tsidata, 2, -5);
+ }
+ } //end count state
+
+ LCDMess(lcdData);
+ } //end while true
+}//end main
\ No newline at end of file
diff -r 000000000000 -r a4095918961b mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sun Nov 06 07:06:44 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/9bcdf88f62b0 \ No newline at end of file