FRA221_7B / Mbed 2 deprecated MCP4922_Sinewave

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Dependencies:   mbed

Fork of MCP4922_Sinewave by FRA221_2015

Files at this revision

API Documentation at this revision

Revision 3:fe3ea8959464, committed 2015-11-17

Comitter:
Pumipachpro
Date:
Tue Nov 17 02:49:27 2015 +0000
Parent:
2:2244c8986987
Commit message:
-

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/main.cpp	Mon Aug 24 12:36:59 2015 +0000
+++ b/main.cpp	Tue Nov 17 02:49:27 2015 +0000
@@ -1,6 +1,7 @@
 
 #include "mbed.h"
 #include "MCP4922.h"
+#include "math.h"
 
 MCP4922 MCP(SPI_MOSI, SPI_SCK,SPI_CS);  // MOSI, SCLK, CS
 
@@ -8,29 +9,15 @@
 /**** Main Function  ***/
 int main(void)
 {
-    MCP.frequency(20000000);
-
-    uint16_t i=0;
-    uint8_t state=0;
+    MCP.frequency(1000000);
+    double zeta = 0 ;
+    double PI = 3.14159265; 
+    
     while(1) {
-        if(i < 0x0FFF)
-        {
-            i++;
-            
+        for(zeta=0 ; zeta<=360 ; zeta++) {
+            MCP.writeA(1000*(1+sin(zeta*(PI/180))));
+            wait_us(20);
         }
-        else
-        {
-            i=0;
-            state = ~state;
-        }
-        
-        if(state ==0)
-        {
-            MCP.writeA(i);
-            }
-            else{
-           MCP.writeA( ((~i)+1)&0x0FFF);
-          }
-            wait_us(20);
     }
+
 }
\ No newline at end of file