CQpub0 Mikami
The experiment using this program is introduced on "Interface" No.11, CQ publishing Co.,Ltd, 2014. 本プログラムを使った実験は，CQ出版社のインターフェース 2014年11月号で紹介しています．
Dependencies: DSProcessingIO mbed
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DAC_Test
by 
CQpub0 Mikami
Revision 1:339c82434d38, committed 2014-07-15
- Comitter:
- CQpub0Mikami
- Date:
- Tue Jul 15 05:28:03 2014 +0000
- Parent:
- 0:f7880759a9d8
- Child:
- 2:4bd5fbc225c3
- Commit message:
- Test program of DSProcessing library
; Adc, Dac, and DacDual classes
Changed in this revision
--- a/DAC_Test.cpp Sun Jul 13 13:28:28 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,42 +0,0 @@
-//--------------------------------------------------------------
-// Test of DacDual class
-//
-// Copyright (c) 2014 MIKAMI, Naoki, 2014/06/17
-//--------------------------------------------------------------
-
-#include "mbed.h"
-#include "MCP4922Single.hpp"
-#include "MCP4922Dual.hpp"
-
-using namespace Mikami;
-
-// sampling frequency
-const float FS_ = 40.0e3f;
-
-DacDual dacAB_;
-Ticker timer_; // for timer interrupt
-
-float phi_;
-
-// Called every 0.025 ms
-void TimerIsr()
-{
- const float PI = 3.14159265f;
- const float PI2 = 2*PI;
- const float DPHI = PI2/10;
-
- float value = 0.8f*sinf(phi_);
-
- dacAB_.Write(value, value);
-
- phi_ += DPHI;
- if (phi_ >= PI) phi_ -= PI2;
-}
-
-int main()
-{
- timer_.attach_us(&TimerIsr, 1.0e6f/FS_);
-
- phi_ = 0;
- while (true) {} // infinite loop
-}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DSProcessingIO.lib Tue Jul 15 05:28:03 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/CQpub0Mikami/code/DSProcessingIO/#c3f647a89947
--- a/SignalProcessingIO.lib Sun Jul 13 13:28:28 2014 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -http://mbed.org/users/CQpub0Mikami/code/SignalProcessingIO/#a2cdffe24b67
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main_ADDA.cpp Tue Jul 15 05:28:03 2014 +0000
@@ -0,0 +1,33 @@
+//--------------------------------------------------------------
+// Test program of DacDual class
+//
+// Copyright (c) 2014 MIKAMI, Naoki, 2014/07/14
+//--------------------------------------------------------------
+
+#include "mbed.h"
+#include "AdcInternal.hpp"
+#include "MCP4922Dual.hpp"
+
+using namespace Mikami;
+
+const float FS_ = 10.0e3f; // sampling frequency: 10 kHz
+
+Adc adc_; // default, input: A0
+DacDual dacAB_; // object of DacDual class
+Ticker timer_; // for timer interrupt
+
+// Called every 0.1 ms
+void TimerIsr()
+{
+ float value = adc_.Read(); // AD
+
+ // pin14 : Inphase
+ // pin10 : Out-of-phase
+ dacAB_.Write(value, -value);
+}
+
+int main()
+{
+ timer_.attach_us(&TimerIsr, 1.0e6f/FS_);
+ while (true) {} // infinite loop
+}