Diff: MCP3204.cpp

Revision:

0:b5950cd5e330

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MCP3204.cpp	Mon Mar 23 07:49:58 2015 +0000
@@ -0,0 +1,74 @@
+/* mbed MCP3204 Library, for driving the 2.7V 4-Channel/8-Channel 12-Bit A/D Converters with SPI™ Serial Interface
+ * Copyright (c) 2015, Created by Steen Joergensen (stjo2809)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+ 
+ #include "mbed.h"
+ #include "MCP3204.h"
+ 
+//=============================================================================
+// Public functions
+//=============================================================================
+
+    MCP3204::MCP3204(SPI& spi, PinName nCs) : _spi(spi), _nCs(nCs)
+    {
+        
+    }
+    
+    
+    MCP3204::MCP3204(PinName mosi, PinName miso,PinName sck, PinName nCs) : _mosi(mosi), _miso(miso), _sck(sck), _nCs(nCs)
+    {
+        SPI _spi(_mosi,_miso,_sck);    
+    }
+    
+     
+    int MCP3204::sgl(char channel)
+    {
+        return _read(SINGLE, channel);    
+    }
+        
+    int MCP3204::diff(char channel)
+    {
+        return _read(DIFFERENTIAL, channel);    
+    }
+    
+//=============================================================================
+// Private functions
+//=============================================================================
+    
+    int MCP3204::_make_value_from_responce(int _msb, int _lsb)
+    {
+        --- code --- 
+    }
+        
+    int MCP3204::_read(char sgl_or_diff, char channel)
+    {
+        _make_value_from_responce(int responce_msb, int responce_lsb);
+        
+        _nCs = 0;
+        _spi.write(sgl_or_diff);
+        int responce_msb = _spi.write(channel);
+        int responce_lsb = _spi.write(0xff);                           // don't care bits
+        _nCs = 1;
+        
+        int responce = _make_value_from_responce(responce_msb, responce_lsb);
+        
+        return responce;     
+    }    
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