Re: MIOS14 PWM Pins on MPC565

Hi All

Isn't it allways the way, spend ages rrying to solve a problem, post 
a question.....then find the answer!

I should have written to the PWM bit in the MIOS14TPCR register...duh!

Thought I would post the answer to my own question in case someone 
else fails to read to data sheet thoroughly enough.

Bye for now

Steve
--- In [email protected], "spw_lotus" <swiggins@l...> wrote:
>
> Hi All
> 
> I am currently programming the PWM channels of the MIOS14. I have 8 
> of the channels working correctly but channels 4,5,20 & 21 do not 
> work. These happen the be the pins that are also used for MPIO32B 
> 5,6,11 & 12. Surely this can't be a coincidence??
> 
> However I cannot see where my software is going wrong. Can anyone 
> help me. I note in the manual the following
> 
> 17.3.1 MIOS14 Signals
> The MIOS14 requires 37 signals: 3 RTC signals, 10 MDASM signals, 8 
> dedicated MPWMSM signals, 12
> dedicated MPIOSM signals and 4 signals are shared between the 
MPWMSM 
> and MPIOSM. The required signal function on shared signals is 
chosen 
> using the PDMCR2 register in the USIU. The usage of all MIOS14 
> signals is shown in the block diagram of Figure 17-1 and in the 
> configuration description of Table 17-1.
> 
> However the register PDMCR2 only has one bit that is not reserved!
> Is this possibly a problem, should I be writing to PDMCR2 to 
> configure these pins as PWM pins?
> 
> Any advice appreciated
> 
> Many thanks
> 
> Steve Wiggins
>






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