Diff: main.cpp

Revision:

0:c1332385cffa

Child:

1:af51ee0c367d

diff -r 000000000000 -r c1332385cffa main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Nov 01 16:49:50 2016 +0000
@@ -0,0 +1,106 @@
+#include "mbed.h"
+#include "mcp4725.h"
+#include "TextLCD.h"
+#include "math.h"
+ 
+TextLCD lcd(p14, p13, p21, p22, p23, p24, TextLCD::LCD16x2); // rs, e, d4-d7
+//
+DigitalOut testLed(LED1);
+Serial pc(USBTX, USBRX);
+AnalogIn analogIn(p15);
+// init the DAC module
+MCP4725 DAC(p28, p27, MCP4725::Standard100kHz, 0);
+//define custom characters
+const char sin_char_top[]  = { 0x0, 0xe,0x11,0x11, 0x0, 0x0, 0x0, 0x0};
+const char sin_char_bot[]  = { 0x0, 0x0, 0x0, 0x0,0x11,0x11, 0xe, 0x0};
+const char sq_char_left[]  = {0x1c, 0x4, 0x4, 0x4, 0x4, 0x4, 0x4, 0x7};
+const char sq_char_right[] = { 0x7, 0x4, 0x4, 0x4, 0x4, 0x4, 0x4,0x1c};
+const double pi = 3.14159;
+int main() {
+    //set custom characters
+    lcd.setUDC(0, (char *) sin_char_bot);
+    lcd.setUDC(1, (char *) sin_char_top);
+    lcd.setUDC(2, (char *) sq_char_left);
+    lcd.setUDC(3, (char *) sq_char_right);
+    int RUN = 0; //start = 1, stop = 0
+    int SIGNAL_MODE = 0; //1sin,10ksin,1sq,10ksq = 0,1,2,3
+
+    while(1) {
+        int dots = 0;
+        while(RUN == 0)
+            {
+                lcd.setCursor(TextLCD::CurOff_BlkOff);
+                lcd.setAddress(0, 0);
+                lcd.printf("Waveform: off\n");
+                if(dots == 0){
+                    lcd.printf("waiting");
+                    dots++;
+                    }
+                else if(dots == 1){
+                    lcd.printf("waiting.");
+                    dots++;
+                    }
+                else if(dots == 2){
+                    lcd.printf("waiting..");
+                    dots++;
+                    }
+                else if(dots == 3){
+                    lcd.printf("waiting...");
+                    dots = 0;
+                    }
+                else{
+                    lcd.printf("ERROR CASE");
+                    }
+                wait_ms(100);
+            }
+        int i = 0;
+        while(RUN == 1)
+            {
+                //set display on
+                lcd.setCursor(TextLCD::CurOff_BlkOff);
+                lcd.setAddress(0, 0);
+                lcd.printf("Waveform: on\n");
+                
+                if(SIGNAL_MODE == 0){
+                    //sin wave 1Hz or 1s
+                    lcd.putc(0); lcd.putc(1); lcd.printf("1Hz Sin Wav");
+                    
+                    double j = 1.65*sin(2*pi*i/100)+1.65;
+                    DAC.write(MCP4725::Normal, (0xFFF * (j/3.3)), false);
+                    wait_ms(5);
+                    i++;
+                    } //end if case
+                else if(SIGNAL_MODE == 1){
+                    //sin wave 10kHz or 100us
+                    lcd.putc(0); lcd.putc(1); lcd.printf("10kHz Sin Wav");
+                    
+                    double k = 1.65*sin(2*pi*i/100)+1.65;
+                    DAC.write(MCP4725::Normal, (0xFFF * (k/3.3)), false);
+                    wait_us(0.5);
+                    i++;
+                    } //end if case
+                else if(SIGNAL_MODE == 2){
+                    //square wave 1Hz or 1s
+                    lcd.putc(2); lcd.putc(3); lcd.printf("1Hz Sq Wav");
+                    
+                    DAC.write(MCP4725::Normal, 0xFFF, false);
+                    wait_ms(500);
+                    DAC.write(MCP4725::Normal, 0x000, false);
+                    wait_ms(500);
+                    } //end if case
+                else if(SIGNAL_MODE == 3){
+                    //square wave 10kHz or 100us
+                    lcd.putc(2); lcd.putc(3); lcd.printf("10kHz Sq Wav");
+                    
+                    DAC.write(MCP4725::Normal, 0xFFF, false);
+                    wait_us(50);
+                    DAC.write(MCP4725::Normal, 0x000, false);
+                    wait_us(50);
+                    } //end if case
+                else{
+                    lcd.printf("ERROR CASE");
+                    //do nothing
+                    } //end default
+            } //end while(on) loop
+    } //end while(1) loop
+} //end main