Justin Jordan / Mbed OS MAX32630FTHR_SqwvGen

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Dependencies:   max32630fthr

Files at this revision

API Documentation at this revision

Revision 1:649584ec899f, committed 2017-07-05

Comitter:
j3
Date:
Wed Jul 05 23:37:13 2017 +0000
Parent:
0:bcb65a6f0e8a
Commit message:
fix

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/main.cpp	Wed Jul 05 22:49:24 2017 +0000
+++ b/main.cpp	Wed Jul 05 23:37:13 2017 +0000
@@ -46,7 +46,7 @@
     float volts = 0.0F;
     float period = 0.0F;
     
-    pwmOut.period_us(period);
+    pwmOut.period(period);
     
     printf("\033[H");  //home
     printf("\033[0J"); //erase from cursor to end of screen
@@ -61,18 +61,17 @@
         //Get ADC value in volts
         volts = ((6.0F * rawADCdata) / 1023.0F);
         
-        //convert to percentage for pwm
-        period = (volts / 3.3F);
-        if(period > 1.0F)
-        {
-            period = 1.0F;
-        }
-        pwmOut.period_us(period);
+        //convert to period in seconds for pwm
+        period = (1.0F / ((300.0F * volts) + 10.0F));
+        
+        //Update sqwv period
+        pwmOut.period(period);
+        pwmOut.write(0.5F);
         
         //Display data
         printf("Raw Data = 0x%04x\r\n", rawADCdata);
         printf("Volts    = %3.2f\r\n", volts);
-        printf("Period   = %3.2f\r\n", period);
+        printf("Period   = %5.4f\r\n", period);
         printf("\033[H");  //home
         
         wait(0.1F);