Enabling And Disabling Timers - Analog Devices VisualDSP++ 5.0 Service Manual

Operation
Note in the above fragment that the core timer was enabled immediately
after being configured and the watchdog and general-purpose timers were
not enabled. Any timer can be enabled via a command table, typically the
last entry in the table. For illustrative purposes, enabling the watchdog
and general-purpose timers is shown separately in
abling Timers".

Enabling and Disabling Timers

After the timer is configured, it can be enabled. When using a command
table, the timer can be enabled as a command in the table as shown in
"Configuring a Timer" on page
the timer is the last entry in the table. Alternatively, timers can be enabled
by a separate call to the appropriate control function. Further, gen-
eral-purpose timers can be simultaneously enabled and disabled as a
group.
The following fragment illustrates how to enable the watchdog timer and
then simultaneously enable general-purpose timers 0 and 1.
Result = adi_tmr_WatchdogControl
Result = adi_tmr_GPGroupEnable
When a timer is disabled, it can be disabled as part of a command table
(though this is unlikely). More often, timers are disabled via a single con-
trol function call. As with the enabling of general-purpose timers, timers
can be disabled simultaneously. The following code fragment illustrates
how to disable the watchdog timer and simultaneously disable gen-
eral-purpose timers 0 and 1.
8-12
8-10. Typically, the command to enable
(ADI_TMR_WDOG_CMD_ENABLE_TIMER, (void *)TRUE);
(ADI_TMR_GP_TIMER_0 | ADI_TMR_GP_TIMER_1, TRUE);
VisualDSP++ 5.0 Device Drivers and System
"Enabling and Dis-
Services Manual for Blackfin Processors