Re: Understanding how to set TPU parameters

These are from the mpc5xx header files:

Generically: TPU_X.PARM[Y][Z] means TPU 'X'(A, B or C), channel 'Y', 
parameter RAM location 'Z' so in your case below the assignments are:

TPU 'B' Channel '0' PRAM '0' = 0x0006 etc.

Note the .R suffix means you are writing to the whole 16bit register.

Which PRAM locations do what for QOM are described in TPUN01.pdf

Ian


--- In [email protected], "ratell01" <jon.ratelle@g...> wrote:
>
> Hi,
> 
> I would like to know how we can find the right value for the 
> parameters PARM[][] like in the following example.
> 
>     tpu_func_p (tpub, 0, TPU_QOM);
>     TPU_HSQ_P (tpub, 0, 2);
>     TPU_B.PARM[0][0].R = 0x0006;
>     TPU_B.PARM[0][1].R = 0x0000;
>     TPU_B.PARM[0][2].R = 0x9242;
>     TPU_B.PARM[0][3].R = 0x9243;
>     TPU_HSR_P (tpub, 0, 1);
> 
> I know that this code outputs a QOM signal and I have played around 
> with some random parameters.  I have check in the AN2374.pdf and 
> TPUN01.pdf, but I don't see explicit stuff on that.  I would like 
to 
> know what the bits set to be able to put correct values.
> 
> So if you know how or where I can find that information, I will 
> appreciate.
> 
> Thanks
> Jonathan
>






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