Diff: AD8chModuleLPC1114.cpp

Revision:

0:7a613ce304cd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/AD8chModuleLPC1114.cpp	Tue May 06 13:39:10 2014 +0000
@@ -0,0 +1,83 @@
+
+#include "mbed.h"
+#include "MCUGearALPC1114.h"
+#include "MCUGearBaseALPC1114.h"
+#include "AD8chModuleLPC1114.h"
+
+AD8chModule::AD8chModule(SPI _spi, PinName _cs, MCUGear *mcugear)
+    :spi(_spi),cs(_cs) {
+        
+    //miso,mosi,sck,cs
+    mcugear->setWireA(IOMISO, IO_REG_IN_DIR, 0);
+    mcugear->setWireA(IOMOSI, IO_REG_OUT_DIR, 1);
+    mcugear->setWireA(IOSCK, IO_REG_OUT_DIR,2);
+    mcugear->setWireA(IOCS, IO_REG_OUT_DIR,3);
+}
+
+
+void AD8chModule::initAD8ch(MCUGear *mcugear){
+       cs = 1;
+       spi.frequency(2000000); //1MHz
+}
+
+int AD8chModule::readADm(MCUGear *mcugear, char ch){
+
+    char sendData;
+    int whoami[3];
+    char sendData2;
+    
+    //0000 0000 0110 00 00 [0000 0000 0000]
+    
+    if(ch < 8){
+        sendData = 0x18+ch; //0001 1000
+        sendData2 = sendData >> 2;
+        sendData = sendData << 6;
+        
+    }else{
+        return -1;
+    }
+    
+    //12bit AD Mobdule----------------
+    //mcugear->connectModule();   //connect---
+    cs = 0;
+    spi.write(sendData2);
+    whoami[2] = spi.write(sendData);
+    whoami[0] = whoami[2]<<8;
+    whoami[0] = whoami[0] + spi.write(0x00)-0xE000;   //get data from AD device
+    cs = 1;
+    //mcugear->disconnectModule();   //disconnect---
+    return whoami[0];
+    
+}
+
+int AD8chModule::readADa(MCUGear *mcugear, char ch){
+
+    char sendData;
+    int whoami[3];
+    char sendData2;
+    
+    //0000 0000 0110 00 00 [0000 0000 0000]
+    
+    if(ch < 8){
+        sendData = 0x18+ch; //0001 1000
+        sendData2 = sendData >> 2;
+        sendData = sendData << 6;
+        
+    }else{
+        return -1;
+    }
+    
+    //12bit AD Mobdule----------------
+    spi.frequency(2000000); //1MHz
+    cs = 1; //reset CS pin
+    mcugear->connectModuleA();   //connect---
+    cs = 0;
+    spi.write(sendData2);
+    whoami[2] = spi.write(sendData);
+    whoami[0] = whoami[2]<<8;
+    whoami[0] = whoami[0] + spi.write(0x00)-0xE000;   //get data from AD device
+    cs = 1;
+    mcugear->disconnectModule();   //disconnect---
+    return whoami[0];
+    
+}