Diff: AD2chModuleLPC1114.cpp

Revision:

0:0050ff39b5f7

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/AD2chModuleLPC1114.cpp	Tue May 06 07:14:31 2014 +0000
@@ -0,0 +1,86 @@
+
+#include "mbed.h"
+#include "MCUGearALPC1114.h"
+#include "MCUGearBaseALPC1114.h"
+#include "AD2chModuleLPC1114.h"
+
+AD2chModule::AD2chModule(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 AD2chModule::initAD2ch(MCUGear *mcugear){
+    
+       cs = 1;
+       
+       //12bit SPI DA module----------------
+       spi.frequency(2000000); //1MHz
+}
+
+int AD2chModule::readADm(MCUGear *mcugear, char ch){
+
+    char sendData;
+    int whoami[3];
+    
+//    spi.frequency(2000000); //1MHz
+    if(ch == 0){
+        sendData = 0x80;
+    }else if(ch == 1){
+        sendData = 0xC0;
+    }else{
+        return -1;
+    }
+    
+    //12bit AD Mobdule----------------
+    //cs = 1; //reset CS pin
+//    mcugear->connectModule();   //connect---
+    
+    cs = 0; 
+    //FRDM KL25Z is 8-bit format.
+    whoami[2] = spi.write(0x01);//0000 0001
+    whoami[2] = spi.write(sendData);
+    whoami[0] = whoami[2]<<8;
+    whoami[0] = whoami[0] + spi.write(0x00) - 0xE000;//0000 0000
+//    whoami[2] = 0;//clear buffer
+    cs = 1;
+//    mcugear->disconnectModule();   //disconnect---
+    return whoami[0];
+    
+}
+
+int AD2chModule::readADa(MCUGear *mcugear, char ch){
+
+    char sendData;
+    int whoami[3];
+    
+    spi.frequency(2000000); //1MHz
+    if(ch == 0){
+        sendData = 0x80;
+    }else if(ch == 1){
+        sendData = 0xC0;
+    }else{
+        return -1;
+    }
+    
+    //12bit AD Mobdule----------------
+    cs = 1; //reset CS pin
+    mcugear->connectModuleA();   //connect---
+    
+    cs = 0; 
+    //FRDM KL25Z is 8-bit format.
+    whoami[2] = spi.write(0x01);//0000 0001
+    whoami[2] = spi.write(sendData);
+    whoami[0] = whoami[2]<<8;
+    whoami[0] = whoami[0] + spi.write(0x00) - 0xE000;//0000 0000
+//    whoami[2] = 0;//clear buffer
+    cs = 1;
+    mcugear->disconnectModule();   //disconnect---
+    return whoami[0];
+    
+}