R E M O T E O P E R A T I O N
Command Syntax
56
LDC-3700C Series
C H A P T E R
3
Operation Complete Definition
Note that Bit 0 of the Standard Event Status Register contains the status of the
Operation Complete flag. Enabling this bit via the
*ESE
command allows the user
to update bit 5 of the status byte. Then, if the SRE mask has bit 5 set, and the
user issues an
*OPC
command, the SRQ signal will be generated upon
completion of the currently processed commands. This may be used to initiate
service request routines which depend on the completion of all previous
commands.
For example, the user may set the TEC output to 30°C, enable an SRQ on
Operation Complete (set *ESE 1 and *SRE 32), and have an SRQ handling
routine in the user's software which reads a new measurement after the 30°C
value has been reached. This allows the use of the operation complete features
of the
LDC-3700C Series Laser Diode Controller, without the need for program looping
or polling which can tie up the communications. Operation Complete on the
LDC-3700C Series Laser Diode Controller is defined as:
•
No operations to the LASER current source hardware are pending.
•
No operations to the TEC hardware are pending.
•
No EEPROM (non-volatile) memory write cycles are in progress.
Summary of Contents for LDC-3700C Series
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Page 78: ...RE M O T E O PE R A T I ON Command Syntax 62 LDC 3700C Series C H A P T E R 3...
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