Drive led blinking by hardware interrupt | TMS320C54x

Technical discussions about the TI C54x DSPs (including the c5401, c5402, c5402a, c5404, c5407, c5409, c5409a, c5410, c5410a, c5416, c5420, c5421, c5441, c549, c5470 and c5471).

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Hello all.
Excuse me for my bad English. I have a problem: how I can drive a userled (led on C54x board)
blinking by hardware interrupt? Which steps I must do in the *cdb file to control the led by
HWI?
Thanks,
     Roby

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r...@hotmail.it wrote:
> Hello all.
> Excuse me for my bad English. I have a problem: how I can drive a userled (led on C54x
board) blinking by hardware interrupt? Which steps I must do in the *cdb file to control the
led by HWI?
> Thanks,
>      Roby
> 

The interrupts on the C54xx are all inputs. You need to use an output.
DSP's are typically limited in their output options. The Host Port
interface lines on the C5402 series can be used for IO, but I'd check
their source/sink specs before hooking up a LED to them -- they're
designed to drive a bus.

Brian

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Discussion Groups | TMS320C54x | Drive led blinking by hardware interrupt

Drive led blinking by hardware interrupt - rfur...@hotmail.it - Oct 6 16:44:57 2006

Re: Drive led blinking by hardware interrupt - "Brian C. Lane" - Oct 6 22:52:27 2006