Cinterion
®
EHS6 AT Command Set
20.6 AT^SCCNT
EHS6_ATC_V03.001 15/12/3
Confidential / Released
Page 483 of 513
0 Activates the Start-Stop counter mode.
After setting this mode, use AT^SSCNT and the <action> parameter to start
or stop the pulse counter or to read out the measured pulses.
1 Activates the Limit counter mode and immediately starts the pulse counter.
Parameter <limit> is mandatory for this mode.
1...65534 Number of pulses to be counted.
Parameter <limit> applies only to the Limit counter mode and is mandatory
for this mode. Once the given number of pulses is reached, the ME sends one
single URC "^SCCNT" which indicates the parameter <time>.
1...2147483645 Time (in milliseconds) taken to count the number of pulses specified with
<limit>.
Measurement accuracy: The parameter <time> implies an inaccuracy <5ms
which needs to be taken into account in addition to the measurement start-up
time mentioned above.
20.6.1 Using the Pulse Counter in Limit Counter Mode
This example assumes that a 1 kHz frequency is applied at the GPIO8 line. Limit counter mode is enabled to
request the time the pulse counter needs to count a specified number of pulses.
This example shows how to stop the Limit counter mode and close the pulse counter without waiting for the
"^SCCNT" URC.
<mode>
(num)
<limit>
(num)
<time>
(num)
at^sccnt=1,1,1000
Open pulse counter, enable Limit counter mode, request the time
needed to count 1000 pulses.
OK
^SCCNT: 1047
"^SCCNT" URC indicates the time taken to count 1000 pulses.
at^sccnt=1,1,2000
Open pulse counter, enable Limit counter mode, request the time
needed to count 2000 pulses.
OK
^SCCNT: 2040
"^SCCNT" URC indicates the time taken to count 2000 pulses.
at^sccnt=1,1,10000
Open pulse counter, enable Limit counter mode, request the time
needed to count 10000 pulses.
OK
^SCCNT: 10043
"^SCCNT" URC indicates the time taken to count 10000 pulses.
at^sccnt=1,1,20000
Open pulse counter, enable Limit counter mode, request the time
needed to count 20000 pulses.
OK
^SCCNT: 20040
"^SCCNT" URC indicates the time taken to count 20000 pulses.
at^sccnt=0,0
Stop and close the pulse counter immediately, without "^SCCNT" URC
being indicated.
OK
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