void ReadSetup（void）
{
GPIBDataWrite(TNT_CMDR,0x10); //reset fifo setp 2
GPIBDataWrite(TNT_CNT0,(char)(count)); //config CNTS setp 4
GPIBDataWrite(TNT_CNT1,(char)(count>>8)); //0x01 0xe0
GPIBDataWrite(TNT_EOSR,0xa);
GPIBDataWrite(TNT_AUXMR,0x96); //end on eos(8bit),holdoff when end
GPIBDataWrite(TNT_CFG,0x20); //config CFG setp 3
GPIBDataWrite(TNT_IMR0,0x80); //set NLEN setp 6
GPIBDataWrite(TNT_IMR1,0x10); //set END IE bit setp 6
GPIBDataWrite(TNT_IMR3,0x07);
GPIBDataWrite(TNT_CMDR,0x04); //go setp 7
GPIBDataWrite(TNT_AUXMR,0x03); //release holdoff
}
void receive(void)
{
while(!((mr_isr3=GPIBDataRead(TNT_ISR3))&0x1))
{
if((!(mr_isr3&0x4)) || (ReceivedCount>=8192))
{
if (ReceivedCount>=8192)
{
ReceivedCount=0;
}
break;
}
if(mr_isr3&0x4)
{
RecData[ReceivedCount]=GPIBDataRead(TNT_FIFOB);
ReceivedCount++;
i++;
}
}
// GPIBDataWrite(TNT_CMDR,0x04); //go setp 7
//GPIBDataWrite(TNT_AUXMR,0x03); //release holdoff setp 8
}
In receive(void) function, If I don't cancel the last two lines "GPIBDataWrite(TNT_CMDR,0x04);" and "GPIBDataWrite(TNT_AUXMR,0x03);", I can continously send command to TNT4882 with my test application embedded with agilent VISA library and never lose one byte. But use NI488.2 I can only send command every two times successfully, First is OK. Second will be timeout error. If I add the last two lines, NI488.2 will successfully send command to TNT488.2 every time, but when I use my test application, sometimes TNT4882 will lose one middle byte of SCPI. Someone can tell me why? Whether I should add the two lines？ Help！
