C5505 ENABLECLK = false

Jrvanho

I am using bios_5_41_10_36 to modify an example C5505 TCF file. I would like to disable the CLK Manager for my board.

According the the TMS320C55x DSP/BIOS 5.x reference guide I should be able to do this. "bios.CLK.ENABLECLK = false;"

I have been able to do this for other C55xx processors, so why do I get an error when I try to do this for the C5505?

Cheers!

0 David Friedland over 14 years ago

What error are you getting exactly?

0 Jrvanho over 14 years ago in reply to David Friedland

David,

Since that field is greyed out. I manually added in the "bios.CLK.ENABLECLK = 0;" to the tcf file.

When I try to open the file I then get :

js: "./tsk.tcf", line 93: Can't modify read-only field

My main questions is, why for the C5505 is this field "read only" when it isn't for the C55xx processors?

Can I use a generic C55xx tcf file for the C5505? Or do I need to use the specific one?

Cheers!

0 Karl Wechsler over 14 years ago in reply to Jrvanho

Jrvahno –

You need to disable the “Use CLK module to drive PRD” option in the “Periodic Function Manager” in order to disable CLK.

If you want PRD periodic functions, or TSK_sleep() and SEM_pend() with timeouts to work, then you need to call PRD_tick from another periodic ISR.

-Karl-

bios.PRD.USECLK = 0;

bios.CLK.ENABLECLK = 0;

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