Diff: main.cpp

Revision:

0:5999cefe7380

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Oct 15 14:40:22 2014 +0000
@@ -0,0 +1,61 @@
+//**********************
+// A/D Converter
+// MCP3425 sample for mbed
+//
+// Voltage=(Vin+)-(Vin-)
+// Voltage Range:-2.048V to 2.048V
+// Resolution:2.048V/0x7FFF=62.5uV, 16bits
+// Sampling Per Second
+// 240 SPS, 12bits
+//  60 SPS, 14bits
+//  15 SPS, 16bits (default)
+//
+// (C)Copyright 2014 All rights reserved by Y.Onodera
+// http://einstlab.web.fc2.com
+//**********************
+#include "mbed.h"
+#include "AQM0802.h"
+#include "MCP3425.h"
+
+#if defined(TARGET_LPC1768)
+I2C i2c(p28,p27);
+#endif
+// for TG-LPC11U35-501
+#if defined(TARGET_LPC11U35_501)
+I2C i2c(P0_5,P0_4);
+#endif
+// for Nucleo
+#if defined(TARGET_NUCLEO_F401RE)
+I2C i2c(D14,D15);
+#endif
+
+AQM0802 lcd(i2c);
+MCP3425 mcp3425(i2c);
+
+
+int main() {
+    
+    char msg[10];
+    short a;
+    float v;
+
+    sprintf(msg,"MCP3425");
+    lcd.locate(0,0);
+    lcd.print(msg);
+    wait(1);
+      
+    while(1) {
+
+        a = mcp3425.get();
+        sprintf(msg,"dat=%X",(unsigned short)a);
+        lcd.locate(0,0);
+        lcd.print(msg);
+        v = (float)a*2.048/0x7FFF;
+        sprintf(msg,"%f",v);
+        lcd.locate(0,1);
+        lcd.print(msg);
+        wait(1);    // Do not exceed 15SPS with 16bits
+    }
+
+}
+