mille feuille
MCUGear 12bit AD 8ch module for LPC1114. It contains wiring data.
Revision 0:7a613ce304cd, committed 2014-05-06
- Comitter:
- Info
- Date:
- Tue May 06 13:39:10 2014 +0000
- Commit message:
- MCUGear 12bit AD 8ch module for LPC1114.
Changed in this revision
| AD8chModuleLPC1114.cpp | Show annotated file Show diff for this revision Revisions of this file |
| AD8chModuleLPC1114.h | Show annotated file Show diff for this revision Revisions of this file |
--- /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];
+
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/AD8chModuleLPC1114.h Tue May 06 13:39:10 2014 +0000
@@ -0,0 +1,15 @@
+
+#include "commonALPC1114.h"
+
+class AD8chModule
+{
+ public:
+ AD8chModule(SPI _spi, PinName _cs, MCUGear *mcugear);
+ void IODAmodule(MCUGear *mcugear);
+ int readADm(MCUGear *mcugear, char ch);//manual connection
+ int readADa(MCUGear *mcugear, char ch);//automatic connection
+ void initAD8ch(MCUGear *mcugear);
+ protected:
+ SPI spi;
+ DigitalOut cs;
+};
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