thank u for your reply first,i show the program detail to u to know about more about my problem,i am expecting for ur reply .
#ifndef ___pci6230_h___
#include "pci6230.h"
#endif
//this main function shows the sequence of sub function used
main()
{
Findboard();
initMite();
Button_1.click()//when i click button1 this function excute
{
DAC_OUT(0,5);//channel 0- out put 5V
}
Button_2.click()//when i click button2 this function excute
{
DAC_OUT(0,0);//channel 0-out put 0V
}
//Button_1.click(),Button_2.click(),if i always use this to function i can get the voltage i want.
Button_3.click()//when i click button3 this function excute
{
myGPCT();;//test
}
//when i click button3 the program excute Button_3.click().after excute Button_click(),i click button1 or button2,the out put voltage//keep in the former voltage,i means that before i excute the Button_3.click(),it out put 5v,it keeps,cannt be changed again.untill i reboot the windows system.can any boday tell me why.
ShutDown6230();
}
//Find and initial the board 6230
int Cpci6230::Findboard()
{
bus = acquireBoard("PCI1::0xe::INSTR");
if(bus == NULL)
{
return 1;
}
//Intitialise Mite Chip.
this->initMite();
return 0;
}
//initial the MITE
void Cpci6230::initMite()
{
tAddressSpace bar0;
u32 physicalBar1;
//Skip MITE initialization for PCMCIA boards
//(which do not have a MITE DMA controller)
if(!bus->get(kIsPciPxiBus,0)) return;
bar0 = bus->createAddressSpace(kPCI_BAR0);
//Get the physical address of the DAQ board
physicalBar1 = bus->get(kBusAddressPhysical,kPCI_BAR1);
//Tell the MITE to enable BAR1, where the rest of the board's registers are
bar0.write32(0xC0, (physicalBar1 & 0xffffff00L) | 0x80);
//bar1 = bus->createAddressSpace(kPCI_BAR1);
bus->destroyAddressSpace(bar0);
}
//shut down the board 6230
int Cpci6230::ShutDown6230()
{
//bus->destroyAddressSpace(bar1);
releaseBoard(bus);
return 0;
}
void Cpci6230::test()
{
u32 serialNumber;
serialNumReadMSeries(bus, &serialNumber);
printf ("Serial Number: 0x%08X\n", serialNumber);
}
//Output a voltage signal to chanel,The scaled part was changed,i still don't understand the Eeorom operation~
void Cpci6230::DAC_OUT(int channel,float voltage)
{
// read eeprom for calibration information
/* const u32 kEepromSize = 1024;
u8 eepromMemory[kEepromSize];
eepromReadMSeries (bus, eepromMemory, kEepromSize); */
// create register map
tAddressSpace bar1;
tMSeries *board_tMSeries;
bar1 = bus->createAddressSpace(kPCI_BAR1);
board_tMSeries = new tMSeries(bar1);
// ---- AO Reset ----
configureTimebase (board_tMSeries);
pllReset (board_tMSeries);
analogTriggerReset (board_tMSeries);
aoReset (board_tMSeries);
aoPersonalize (board_tMSeries);
aoResetWaveformChannels (board_tMSeries);
aoClearFifo (board_tMSeries);
// unground AO reference
board_tMSeries->AO_Calibration.writeAO_RefGround (kFalse);
// ---- End of AO Reset ----
// ---- Start A0 task ---
/* tScalingCoefficients scale;
aoGetScalingCoefficients (eepromMemory, 0, 0, channel, &scale); */
aoConfigureDAC (board_tMSeries,
channel,
0xF,
tMSeries::tAO_Config_Bank::kAO_DAC_PolarityBipolar,
tMSeries::tAO_Config_Bank::kAO_Update_ModeImmediate);
// ---- Write to DAC ----
i32 value;
//aoLinearScaler (&value, &voltage, &scale);
value=(voltage/10.0)*32768;
//printf ("voltage: %f (%d)\n", voltage, value);
board_tMSeries->DAC_Direct_Data[channel].writeRegister (value);//value
// ---- Stop ----
// cleanup
delete board_tMSeries;
bus->destroyAddressSpace(bar1);
return;
}
void Cpci6230::testt()
{
cardSpace = bus->createAddressSpace(kPCI_BAR1);
board_tTIO = new tTIO(cardSpace);
board_tTIO->G01_Joint_Reset_Register.writeG0_Reset(1);
board_tTIO->G0_Command_Register.writeG0_Disarm(1);
board_tTIO->G0_Load_A_Registers.writeG0_Load_A(0x00000000);
board_tTIO->G0_Command_Register.readG0_Disarm();
delete board_tTIO;
bus->destroyAddressSpace(cardSpace);
}
//Counter test
void Cpci6230::myGPCT(void)
{
tAddressSpace cardSpace;
tTIO *board;
cardSpace = bus->createAddressSpace(kPCI_BAR1);
board = new tTIO(cardSpace);
//Reset
board->G01_Joint_Reset_Register.writeG0_Reset(1);
//Disarm
board->G0_Command_Register.writeG0_Disarm(1);
//load initial value of 0
board->G0_Load_A_Registers.writeG0_Load_A(0x00000000);
board->G0_Command_Register.writeG0_Load(1);
//set the counting mode to quadrature encoding X4
board->G0_Counting_Mode_Register.setG0_Encoder_Counting_Mode(3);
board->G0_Counting_Mode_Register.writeG0_Index_Phase(3);
//set source to the internal timebase (20 MHz)
board->G0_Input_Select_Register.writeG0_Source_Select(0);
//set gate
board->G0_Input_Select_Register.writeG0_Gate_Select(2);
board->G0_Mode_Register.writeG0_Gate_Polarity(0);
board->G0_Mode_Register.writeG0_Gating_Mode(2);
board->G0_Mode_Register.writeG0_Trigger_Mode_For_Edge_Gate(3);
//set counting direction to Gate IO connector
board->G0_Command_Register.writeG0_Up_Down(2);
//arm counter
printf("counter value is 0x%08lx\n",
board->G0_Save_Registers.readRegister());
board->G0_Command_Register.writeG0_Arm(1);
//delay long enough for the quadrature encoder to turn a few times
{
long int i,j;
printf("waiting...\n");
for(i=0;i<10;i++)
for(j=0;j<30;j++)
;
}
//read counter value
//Use this method to read the value of an armed counter
//during non-buffered counting. Since the value of the counter may
//change during the read, we make sure that the value is stable.
unsigned long counterValue1, counterValue2;
counterValue1 = board->G0_Save_Registers.readRegister();
counterValue2 = board->G0_Save_Registers.readRegister();
if(counterValue1 != counterValue2)
counterValue1 = board->G0_Save_Registers.readRegister();
printf("counter value is now 0x%08lx\n",counterValue1);
//Disarm
board->G0_Command_Register.writeG0_Disarm(1);
delete board;
bus->destroyAddressSpace(cardSpace);
}
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