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/* Use the MEASure command to configure the digitizer and to take */
/* the readings */
IOOUTPUTS(ADDR, "MEAS1:ARR:VOLT? (10),5,(@3)", 27);
/* Send (27) characters */
IOENTERA(ADDR, rdgs, &readings);
/* Read readings from MEASure command */
for (i = 0; i < readings; i++)
{
printf("\nReading %d = %f", i, *rdgs++);
}
free (rdgs - readings);
}
/****************************************************************************/
void rst_clr(void)
{
/* Reset and clear the A/D */
IOOUTPUTS(ADDR, "*RST;*CLS", 9); /* Send (9) characters */
}
Using CONFigure When an application requires a configuration different from that available
with MEASure, CONFigure is used. CONFigure does not take readings
after setting the configuration. Thus, any of the low-level commands (Table
1-3) can be used to change selected parameters before a measurement is
made.
Assume an application requires the following configuration:
• 10 pre-arm and 10 post arm readings
• 1V range
• single ended input
MEASure cannot be used since it sets the pre-arm reading count to 0. By
using CONFigure, the low-level command:
SENSe[<
chan
>]:SWEep:OFFSet:POINts <
count
>
can be used to set the desired number of pre-arm readings:
Chapter 1 Getting Started 39