研华PCI-1716 调用BIOS中断，访问PCI卡数据

//************************************************************************** // // Copyright (c) 2001 IAG Software Team, // // BeiJing R&D Center // // Advantech Co., Ltd. // // PCI-1716 example for MS-DOS // // This is An Unpublished Work Containing Confidential And Proprietary // Information Which Is The Property Of Advantech Automation Corp. // // Any Disclosure, Use, Or Reproduction, Without Written Authorization From // Advantech Automation Corp., Is Strictly Prohibit. // // //***************************************************************************** // // Program : Aififoint.C // Revision: 1.0 // Author : Changping // Date : 09/20/01 // // Description:Perform pacer trigger analog input with FIFO half full // interrupt of PCI-1716/HG. // //----------------------------------------------------------------------------- #include <dos.h> #include <stdio.h> #include <conio.h> #include <stdlib.h> #include "PCI.C" // Global variable declare dword gdwBaseAddr; //Base address dword addr1_9054; int giIrqNum; //IRQ number int giIrqSourceBit; //indecate the interrupt source int giComplete; //AI conversion complete flag int giIntCount; //Interrupt occurs times word giDataNumber; //AI conversion data count word *gpwDataBuf; //Interrupt transfer data buffer int counter=0; // Local fucntion declare void interrupt IrqHandler (); byte InitInterrupt ( int iIrqNum, void interrupt ( *pIsrHandler )(), void interrupt ( **pOldIsr )() ); int GetFifoSize ( dword dwBaseAddr ); void ResetAi ( dword dwBaseAddr ); void RestoreOldIsr ( int iIrqNum, byte ucIrqMask, void interrupt ( *pOldIsr )() ); int SetPacer ( dword dwBaseAddr, float fFrequency, float fSourceFreq ); void StopPacer ( dword dwBaseAddr ); void main() { word wVendorId, wDeviceId, wIndex; int iErrCode; byte ucBusNumber, ucDevAndFunc; dword dwData; int iChannel, iStartChannel, iStopChannel; byte ucGain, ucUniPolar, ucDifferential; //Base+2, //channel range setting byte ucTrigSrc, ucIrqEn, ucFh, ucCnt0; //Base+6, Control register int iFifoSize, i; byte ucIrqMask; void interrupt ( *pOldIsr )(); word wRawData; float fVoltage, fHiVolt, fLoVolt; byte ucStatus; wVendorId = 0x13fe; wDeviceId = 0x1716; wIndex = 0; iStartChannel = 0; //Select analog input start channel iStopChannel = 15; //Select analog input stop channel giDataNumber = 100; //Conversion 100 data gpwDataBuf = ( word* )malloc( giDataNumber * sizeof( word ) ); clrscr(); gotoxy( 10, 5 ); printf( "------------------ PCI-1716 AIINT.C -----------------------" ); printf( "\n\tThis program get voltage from channel %d to %d. ", iStartChannel, iStopChannel ); //========================================================================== // Get 1716's resource //========================================================================== // // Search PCI-1716 // iErrCode = find_pci_device( wDeviceId, wVendorId, wIndex, &ucBusNumber, &ucDevAndFunc ); if ( iErrCode == NOT_SUCCESSFUL ) { printf( "\n\tPCI-1716 search fail.\n" ); exit( 1 ); } // //Get 9054 address, from PCI base address range 1 // iErrCode = read_configuration_dword( ucBusNumber, ucDevAndFunc, PCI_CS_BASE_ADDRESS_1, &addr1_9054 ); if ( !iErrCode ) { if ( addr1_9054 & 0x01 ) { addr1_9054 &= 0xfffffffc; printf( "\n\t9054 address=%lx ", addr1_9054 ); } else { addr1_9054 &= 0xfffffff0; printf( "\n\tPCI9054 MEMORY 9054=%lx ", addr1_9054 ); } } // //Get base address, from PCI base address range 2 // iErrCode = read_configuration_dword( ucBusNumber, ucDevAndFunc, PCI_CS_BASE_ADDRESS_2, &dwData ); if ( iErrCode == NOT_SUCCESSFUL ) { printf( "\n\tPCI-1716 gets base address fail.\n" ); exit( 1 ); } else { gdwBaseAddr = dwData & 0xfffffffc; } // //Get Interrupt line // iErrCode = read_configuration_dword( ucBusNumber, ucDevAndFunc, PCI_CS_INTERRUPT_LINE, &dwData ); if ( iErrCode == NOT_SUCCESSFUL ) { printf( "\n\tPCI-1716 gets interrupt line fail.\n" ); exit( 1 ); } else { giIrqNum = dwData & 0xf; } printf( "\n\tPCI-1716/HG Base Address: %lx", gdwBaseAddr ); printf( "\n\tPCI-1716/HG Interrupt: %d", giIrqNum ); //Get FIFO size iFifoSize = GetFifoSize( gdwBaseAddr ); printf( "\n\n\tPress any key to start conversion..." ); outport( addr1_9054 + 0x68, 0x0900 ); //INTCSR //========================================================================== // Reset AI function of PCI-1716/HG by clearing previous setting //========================================================================== ResetAi( gdwBaseAddr ); //========================================================================== // Install ISR //========================================================================== ucIrqMask = InitInterrupt( giIrqNum, IrqHandler, &pOldIsr ); //========================================================================== // Config PCI-1716 to pacer trigger, interrupt generate. //========================================================================== //Set pacer to 20Hz, source crystal is 1MHz //Note, different gain code has different max. conversion rate. StopPacer( gdwBaseAddr ); SetPacer( gdwBaseAddr, 10, 1000 ); // //Set voltage input range (base+2) // Bit# 7 6 5 4 3 2 1 0 // S/D B/U G2 G1 G0 // S/D: 0 = single ended, 1 = differential // B/U: 0 = Bipolar, 1 = uniopolar // G2,G1,G0 : Gain code // // B/U N/A G2 G1 G0 Voltage range PCI-1710, PCI-1710HG // 0 0 0 0 -5V to 5V -5V to +5V // 0 0 0 1 -2.5V to 2.5V -0.5V to 0.5V // 0 0 1 0 -1.25V to 1.25V -0.05V to 0.05V // 0 0 1 1 -0.625V to 0.625V -0.005V to 0.005V // 0 1 0 0 -10V to 10V -10V to 10V // 0 1 0 1 -1V to 1V // 0 1 1 0 -0.1V to 0.1V // 0 1 1 1 -0.01V to 0.01V // 1 0 0 0 0V to 10V 0V to 10V // 1 0 0 1 0V to 5V 0V to 1V // 1 0 1 0 0V to 2.5V 0V to 0.1V // 1 0 1 1 0V to 1.25V 0V to 0.01V // fLoVolt = -5.0; //Voltage -5V to + 5V fHiVolt = 5.0; ucGain = 0 ; //Gain code 0 ucUniPolar = 0; //Bipolar ucDifferential = 0; //Single ended ucGain = ucGain | ucUniPolar | ucDifferential; for ( iChannel = iStartChannel; iChannel <= iStopChannel; iChannel++ ) { outportb( gd