masa miya / Mbed 2 deprecated DDS_AD9834

AD9834 DDS Sinewave

Dependencies:   TextLCD mbed

Files at this revision

API Documentation at this revision

Revision 0:6e98d1ce9934, committed 2011-07-17

Comitter:
jf1vrr
Date:
Sun Jul 17 15:58:30 2011 +0000
Commit message:
Rev.1.01A new 2011/07/14 Mlabo

Changed in this revision

TextLCD.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TextLCD.lib	Sun Jul 17 15:58:30 2011 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/simon/code/TextLCD/#a53b3e2d6f1e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Jul 17 15:58:30 2011 +0000
@@ -0,0 +1,65 @@
+/*AD9834 DDS Test 2011/07/14 MLabo*/
+#include "mbed.h"
+#include "TextLCD.h"
+
+TextLCD lcd(p24, p26, p27, p28, p29, p30); //Starboard Orenge
+DigitalOut FSYNC(p18);
+DigitalOut SCLK(p19);
+DigitalOut SDATA(p20);
+
+Timer timer;
+
+void serial_out(uint16_t data) {
+
+    FSYNC = 0;
+    data & 0x8000? SDATA = 1 : SDATA = 0; SCLK = 0; SCLK = 1;
+    data & 0x4000? SDATA = 1 : SDATA = 0; SCLK = 0; SCLK = 1;
+    data & 0x2000? SDATA = 1 : SDATA = 0; SCLK = 0; SCLK = 1;
+    data & 0x1000? SDATA = 1 : SDATA = 0; SCLK = 0; SCLK = 1;
+    data & 0x0800? SDATA = 1 : SDATA = 0; SCLK = 0; SCLK = 1;
+    data & 0x0400? SDATA = 1 : SDATA = 0; SCLK = 0; SCLK = 1;
+    data & 0x0200? SDATA = 1 : SDATA = 0; SCLK = 0; SCLK = 1;
+    data & 0x0100? SDATA = 1 : SDATA = 0; SCLK = 0; SCLK = 1;
+    data & 0x0080? SDATA = 1 : SDATA = 0; SCLK = 0; SCLK = 1;
+    data & 0x0040? SDATA = 1 : SDATA = 0; SCLK = 0; SCLK = 1;
+    data & 0x0020? SDATA = 1 : SDATA = 0; SCLK = 0; SCLK = 1;
+    data & 0x0010? SDATA = 1 : SDATA = 0; SCLK = 0; SCLK = 1;
+    data & 0x0008? SDATA = 1 : SDATA = 0; SCLK = 0; SCLK = 1;
+    data & 0x0004? SDATA = 1 : SDATA = 0; SCLK = 0; SCLK = 1;
+    data & 0x0002? SDATA = 1 : SDATA = 0; SCLK = 0; SCLK = 1;
+    data & 0x0001? SDATA = 1 : SDATA = 0; SCLK = 0; SCLK = 1;
+    FSYNC = 1;
+}
+
+int main() {
+    float SetFreq;
+    uint32_t temp, freqdata;
+    uint16_t Uptemp, Lowtemp;
+    int begin, end;
+
+    SCLK = 1;
+    SDATA = 0;
+    FSYNC = 1;
+
+    lcd.cls();
+    lcd.locate(0,0);
+    lcd.printf("AD9834 test" );
+
+    timer.start();
+    begin = timer.read_us();
+    for ( freqdata = 0; freqdata < 16000000; freqdata++) {
+
+        SetFreq = 5.592405 * (uint32_t)freqdata;
+        temp = (uint32_t)SetFreq;
+        Lowtemp = (uint16_t)(temp & 0x3FFF);
+        Uptemp = (uint16_t)((temp/16384) & 0x3FFF);
+        serial_out(0x2028);
+        serial_out(Lowtemp + 0x4000);
+        serial_out(Uptemp + 0x4000);
+    }
+    end = timer.read_us();
+    lcd.locate(0,1);
+    lcd.printf("%duS", end - begin);
+    while (1) {}
+
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sun Jul 17 15:58:30 2011 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/63bcd7ba4912