新增阿尔泰卡测试功能。

2014-04-29 18:13:54 +08:00
parent d1cf313511
commit 46b61ce1e0
19 changed files with 711 additions and 27 deletions
@@ -0,0 +1,162 @@
+#include "StdAfx.h"
+#include <WinDef.h>
+#include <WinBase.h>
+#include "ART_PCI8622.h"
+
+#define MAX_AD_CHANNELS 4
+#define SEGMENT_COUNT 32
+#define HALF_SIZE_WORDS 4096
+
+
+CART_PCI8622::CART_PCI8622()
+{
+
+}
+
+CART_PCI8622::~CART_PCI8622()
+{
+
+}
+//========================================
+BOOL CART_PCI8622::Init()
+{
+  return TRUE;
+}
+//========================================
+BOOL CART_PCI8622::Exit()
+{
+  return TRUE;
+}
+//========================================
+BOOL CART_PCI8622::GetData()
+{
+  BOOL rStatus(TRUE);
+#ifdef _RELEASE_FULL_VERSION
+  int InputRange(0);
+  int SelectInputRange(void);
+  WORD ADBuffer[SEGMENT_COUNT][HALF_SIZE_WORDS]; // 分配缓冲区(存储原始数据)
+  ULONG SegmentID = 0;
+
+  HANDLE hDevice;
+  int DeviceLgcID;
+
+  PCI8622_PARA_AD ADPara; // 硬件参数
+  PCI8622_STATUS_DMA DMAStatus; // DMA状态参数
+
+  int Index(0);
+
+  int nADChannel = 0;
+  WORD ADData(0);
+  float fVolt(0);
+
+  DeviceLgcID = 0;
+  hDevice = PCI8622_CreateDevice(DeviceLgcID); // 创建设备对象
+  if(hDevice == INVALID_HANDLE_VALUE)
+  {
+    rStatus=FALSE;
+    return rStatus; // 如果创建设备对象失败，则返回
+  }
+
+  memset(&ADPara, 0x00, sizeof(ADPara)); // 将各项参数复位至确定值0(强烈建议)
+
+  // 预置硬件参数
+  ADPara.ADMode			= PCI8622_ADMODE_SEQUENCE; // AD模式为连续模式
+  ADPara.FirstChannel		= 1; // 首通道
+  ADPara.LastChannel		= 2;  // 末通道
+  ADPara.Frequency		= 10000; // 采样频率(Hz)
+  ADPara.GroupInterval	= 50; // 组间间隔(uS)
+  ADPara.LoopsOfGroup		= 1;    // 组内各通道点数
+  ADPara.Gains			= PCI8622_GAINS_1MULT;
+  ADPara.InputRange		= InputRange;    // 模拟量输入量程范围
+
+  ADPara.TriggerMode		= PCI8622_TRIGMODE_SOFT; // 触发模式为软件触发
+  ADPara.TriggerType		= PCI8622_TRIGTYPE_EDGE; // 触发类型为边沿触发	
+  ADPara.TriggerDir		= PCI8622_TRIGDIR_NEGATIVE; // 触发方向为负向
+  ADPara.TrigWindow		= 40;    // 触发灵敏度
+
+  ADPara.ClockSource		= PCI8622_CLOCKSRC_IN; // 时钟源选用板内时钟源
+  ADPara.bClockOutput		= FALSE; // 禁止时钟输出
+  ADPara.GroundingMode	= PCI8622_GNDMODE_SE; // 单端方式(SE:Single end)
+  ADPara.TimeoutForNpt	= 10; // 在非空方式下，设置超时时间为10秒钟(只在非空查询方式下有效)
+
+  HANDLE hDmaEvent = PCI8622_CreateSystemEvent();
+  if(!PCI8622_InitDeviceDmaAD( hDevice, hDmaEvent, &ADBuffer[0][0], 4096, SEGMENT_COUNT, HALF_SIZE_WORDS, &ADPara)) // 初始化硬件
+  {
+    rStatus=FALSE;
+    goto ExitRead0;  
+  }
+
+  PCI8622_StartDeviceDmaAD(hDevice); // 启动设备		
+  bool bWait(true);
+  while(bWait) // 查询当前物理缓冲区数据是否已准备就绪
+  {
+    if(WaitForSingleObject (hDmaEvent, 100)==WAIT_OBJECT_0) 
+      bWait=false; // 等待DMA事件	
+  }
+
+  if(!PCI8622_GetDevStatusDmaAD(hDevice, &DMAStatus))
+  {
+    rStatus=FALSE;
+    goto ExitRead0;
+  }		
+
+  if(DMAStatus.bBufferOverflow)
+  {
+    rStatus=FALSE;
+  }
+
+  for(SegmentID=0; SegmentID<SEGMENT_COUNT; SegmentID++)
+  {
+    if(DMAStatus.bSegmentSts[SegmentID])
+    {
+      nADChannel = ADPara.FirstChannel;
+      for(Index=0; Index<64; Index++)
+      {
+        ADData = ((ADBuffer[SegmentID][Index]));
+        // 将原码转换为电压值
+        switch(InputRange)
+        {
+        case PCI8622_INPUT_N10000_P10000mV: // -10V - +10V
+          fVolt = (float)((20000.0/65536) * ADData - 10000.0);
+          break;
+        case PCI8622_INPUT_N5000_P5000mV: // -5V - +5V
+          fVolt = (float)((10000.0/65536) * ADData - 5000.0);
+          break;
+        case PCI8622_INPUT_N2500_P2500mV: // -2.5V - +2.5V
+          fVolt = (float)((5000.0/65536) * ADData - 2500.0);
+          break;
+        case PCI8622_INPUT_0_P10000mV: // 0V - +10V
+          fVolt = (float)((10000.0/65536) * ADData);
+          break;	
+        case PCI8622_INPUT_0_P5000mV: // 0V - +5V
+          fVolt = (float)((5000.0/65536) * ADData);
+          break;	
+        default:
+          break;
+        }
+        nADChannel++;
+        if(nADChannel > ADPara.LastChannel)
+        {
+          nADChannel = ADPara.FirstChannel;
+        }			
+      }
+    }
+
+    if(!PCI8622_SetDevStatusDmaAD(hDevice, SegmentID))
+    {
+      rStatus=FALSE;
+      goto ExitRead0;
+    }
+  } // end of for(SegmentID=0; SegmentID<SEGMENT_COUNT; SegmentID++)
+
+ExitRead0:	
+  PCI8622_ReleaseDeviceDmaAD(hDevice); // 释放AD
+  PCI8622_ReleaseSystemEvent(hDmaEvent);
+  PCI8622_ReleaseDevice(hDevice); // 释放设备对象
+#endif //_RELEASE_FULL_VERSION
+
+  return rStatus;
+
+}
+
+