Files
openairinterface5g/openair1/SIMULATION/LTE_PHY/signalanalyzer.c
T
2013-06-25 09:05:02 +00:00

99 lines
2.6 KiB
C

#include<stdio.h>
#include<string.h>
#include<gpib/ib.h>
#include "signalanalyzer.h"
void gpib_send(unsigned int gpib_card, unsigned int gpib_device, char *command_string )
{
unsigned short addlist[2] ={gpib_device, NOADDR};
SendIFC(gpib_card);
//Enable all on GPIB bus
EnableRemote(gpib_card, addlist);
if(ibsta & ERR)
{
printf("gpib_send: Instrument enable failed! \n");
}
//Send Control Commandss
Send(gpib_card, gpib_device, command_string, strlen(command_string), NLend);
if(ibsta & ERR)
{
printf("gpib_send: Send failed! \n");
}
printf("%s \n",command_string);
}
void analyzer(unsigned int gpib_card,unsigned int gpib_device,unsigned int freqband,LTE_DL_FRAME_PARMS *frame_parms,DCI_ALLOC_t *dci_alloc)
{
char string[256];
//Start the remote control
gpib_send(gpib_card,gpib_device,"*RST;*CLS"); //reset and configure the signal analyzer
gpib_send(gpib_card,gpib_device,"CONF:PRES");
gpib_send(gpib_card,gpib_device,"CALC1:FEED 'CONS:CONS'");
gpib_send(gpib_card,gpib_device,"INIT");
//select the duplexing mode
if (frame_parms->frame_type == 0)
gpib_send(gpib_card,gpib_device,"CONF:DUPL FDD");
else
gpib_send(gpib_card,gpib_device,"CONF:DUPL TDD");
//set the direction into DL
gpib_send(gpib_card,gpib_device,"CONF:LDIR DL");
//carrier frequency
gpib_send(gpib_card,gpib_device,"FREQ:CENT 1.2GHZ");
//input source
gpib_send(gpib_card,gpib_device,"INP RF");
//RF attenuation
gpib_send(gpib_card,gpib_device,"INP:ATT 0");
////Using a Trigger
gpib_send(gpib_card,gpib_device,"TRIG:MODE IMM"); //Selects free run trigger source
// number of frames to be selected
gpib_send(gpib_card,gpib_device,"FRAM:COUN:STAT ON");
gpib_send(gpib_card,gpib_device,"FRAM:COUN 4");
//select all the subframes
gpib_send(gpib_card,gpib_device,"SUBF:SEL ALL");
//Identifies the configuration according to the data in the PDCCH DCIs
gpib_send(gpib_card,gpib_device,"DL:FORM:PSCD PDCCH");
//sets the number of resource blocks to 25
sprintf(string,"CONF:DL:NORB %d",frame_parms->N_RB_DL);
gpib_send(gpib_card,gpib_device,string);
//set the prefix of the subframes
if (frame_parms->Ncp == 0)
gpib_send(gpib_card,gpib_device,"CONF:DL:CYCP NORM");
else
gpib_send(gpib_card,gpib_device,"CONF:DL:CYCP EXT");
//select the UL/DL subframe configuration for downlink signals
sprintf(string,"CONF:DL:TDD:UDC %d",frame_parms->tdd_config);
gpib_send(gpib_card,gpib_device,string); //sets the UL/DL configuration into 3
//Selects the configuration of a TDD special subframe
sprintf(string,"CONF:DL:TDD:UDC %d",frame_parms->tdd_config_S);
gpib_send(gpib_card,gpib_device,string); //sets the special subframe configuration into 0
}