HP 8153A - Page 196

10
Example 4
240 Pmm_srq:
Value=SPQLL (SPibk)
250 Ende»Endo+l
260 PRINT TABXY(38,14);Ende
270
PRINT TABXY(38,16);Value
275
j
280 OUTPUT aPmm;"*cls"
290 LOCAL SPmm
300 ENABLE INTR 7
310 RETURN
315
j
320 EKD
Description
Line No.
20
30
40
50
60
70 to 100
120 to 170
180 to too
Clear the status
Set up the transition filters, and the enable register for the
QUEStionable:POWer:OVERRange node. An overrange for
channel A is signalled in bit 0 of this node, an overrange for
channel B is signalled in bit 1. We enable both bits 0 and 1 for
positive transitions, that is, if either of these two bits goes from
0 to 1 in the condition register, the corresponding bit is set in
the event register. Negative transitions are ignored. The enable
register is set for both bits 0 and 1, so that if either are set,
they set the summary bit in the QUEStionabletPOWer node.
Set up the transition filters, and the enable register for the
QUEStionablerPOWer node. Bit 0 is set up here, this is the
summary bit for the QUEStionable:POWer:OVERRange node.
Set up the transition filters, and the enable register for the
QUEStionable node. Bit 3 is set up here, this is the summary bit
for the QUEStionable: POWer node.
Set up the Status Request Enable register. This causes an
interrupt when the bit reflecting the QUEStionable node is set.
Clear the error queue, by reading out all the error messages.
This command makes sure that the initialisation commands
(lines 30-60) have run.
Set up the display.
Set up the interrupt service routine and enable the interrupt.
10-8 Remote Operation • Programming Examples