68300

I am having trouble setting up the interrupt that will fire after 
completion of each pwm period.  I previously posted but made a 
mistake when I said that I was using the TPU to handle the PWM 
signal.  I am actually using the PWM submodule that is part of the 
CTM4.

My question is: What is the interrupt vector that is selected if the 
PWM5SIC register is set to trigure an interrupt?  Is is user defined?

Thanks,
Erik

Erik,

Yes, it's user defined (within limits).  Write to the Bus Interface Unit's
MCR to set the "base" interrupt vector for the CTM4.  PWM5 would use vector
base+5.  You've probably already figured out that it can be at the IPL of
your choice using the PWMSIC register.

See Table 10-7 in the MC68376UM for the breakdown.

Jeff





"Erik Wise" <erik_wise@...> on 03/18/2003 05:08:04 PM

Please respond to 68300@yahoogroups.com

To:    68300@yahoogroups.com
cc:

Subject:    [68300] pwm interrupt for 68376


I am having trouble setting up the interrupt that will fire after
completion of each pwm period.  I previously posted but made a
mistake when I said that I was using the TPU to handle the PWM
signal.  I am actually using the PWM submodule that is part of the
CTM4.

My question is: What is the interrupt vector that is selected if the
PWM5SIC register is set to trigure an interrupt?  Is is user defined?

Thanks,
Erik




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