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I have some problems in Bootloader And PLL (tms320vc549)

Started by ramtin rabiee July 20, 2007
I use tms320vc549, I have some problems in bootloader and PLL mode, my
problems are:
1- In spru131 part 8.5 table 8.15 (Clock mode): when I use crystal
for clocking, which of “with external source” or “with oscillator
enabled” is true?
And Does my DSP act by “Option 1” or “Option2”?
2- In spru288 (bootloader): when I use 16-bit parallel boot in data
space, to boot my information from RAM to DSP, which of “PS & MSTRB”
pins or “DS & MSTRB” pins is used?

Thanks
Ramtin Rabiee

Ramtin-

> I use tms320vc549, I have some problems in bootloader and PLL mode, my
> problems are:
> 1- In spru131 part 8.5 table 8.15 (Clock mode): when I use crystal
> for clocking, which of "with external source" or "with oscillator
> enabled" is true?

"oscillator enabled". The data sheet means "internal oscillator". A crystal is not
an oscillator.

> And Does my DSP act by "Option 1" or "Option 2"?
> 2- In spru288 (bootloader): when I use 16-bit parallel boot in data
> space, to boot my information from RAM to DSP, which of "PS & MSTRB"
> pins or "DS & MSTRB" pins is used?

Not sure, but I would guess /DS strobe.

-Jeff