Used as part of the OU_Davis_Old_Robot library

Files at this revision

API Documentation at this revision

Comitter:
DrewSchaef
Date:
Wed Nov 01 15:56:02 2017 +0000
Commit message:
Committed to allow program to be published

Changed in this revision

MCP3008.cpp Show annotated file Show diff for this revision Revisions of this file
MCP3008.h Show annotated file Show diff for this revision Revisions of this file
diff -r 000000000000 -r 2cb766caa4c7 MCP3008.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MCP3008.cpp	Wed Nov 01 15:56:02 2017 +0000
@@ -0,0 +1,30 @@
+/**by Austin Saunders
+
+*/
+
+#include <mbed.h>
+#include "MCP3008.h"
+
+MCP3008::MCP3008(PinName mosi, PinName miso, PinName clk, PinName cs)
+:   _spi(mosi,miso,clk),
+    _cs(cs),
+    _vref(3.3)
+{
+    _spi.frequency(1000000);
+    _spi.format(8,0);
+    _cs = 1;
+}
+ 
+int
+MCP3008::read(int ch)
+{
+    _cs = 0;
+    _spi.write(0x01);                   
+    _data1 = _spi.write(0x80|(ch<<4));
+    _data2 = _spi.write(0x00);
+    int adb = (_data1<<8) | _data2; 
+    adb = (adb & 0x03FF);
+    _cs = 1;
+    float ain = (adb*_vref)/1023;
+    return adb;
+}
\ No newline at end of file
diff -r 000000000000 -r 2cb766caa4c7 MCP3008.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MCP3008.h	Wed Nov 01 15:56:02 2017 +0000
@@ -0,0 +1,23 @@
+//
+//
+//
+#ifndef _MCP3008_H
+#define _MCP3008_H
+ 
+#include <mbed.h>
+ 
+class MCP3008 {
+  protected:
+    SPI _spi;
+    DigitalOut _cs;
+    float _vref;
+    int _data1;
+    int _data2;
+  
+  public:
+    MCP3008(PinName mosi=p11, PinName miso=p12, PinName clk=p13, PinName cs=p14);
+    int read(int ch);
+    float vref(float v){return _vref=v;}
+};
+ 
+#endif  //_MCP3008_H
\ No newline at end of file