* [ECOS] short accurate delay in DSR or startup
@ 2004-07-27 4:14 harmon
2004-07-27 5:35 ` Gary Thomas
0 siblings, 1 reply; 3+ messages in thread
From: harmon @ 2004-07-27 4:14 UTC (permalink / raw)
To: ecos-discuss
When initializing a chip, I need to delay for ~ 1 millisecond. I can't
use any blocking calls, so I am now using a simple for loop to eat up
time. Is there a portable, accurate way to delay within a DSR or
initialization code?
I am using ecos 2.0 on an x86 platform.
Larry
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* Re: [ECOS] short accurate delay in DSR or startup
2004-07-27 4:14 [ECOS] short accurate delay in DSR or startup harmon
@ 2004-07-27 5:35 ` Gary Thomas
0 siblings, 0 replies; 3+ messages in thread
From: Gary Thomas @ 2004-07-27 5:35 UTC (permalink / raw)
To: harmon; +Cc: ecos-discuss
On Mon, 2004-07-26 at 17:53, harmon wrote:
> When initializing a chip, I need to delay for ~ 1 millisecond. I can't
> use any blocking calls, so I am now using a simple for loop to eat up
> time. Is there a portable, accurate way to delay within a DSR or
> initialization code?
#include <cyg/hal/hal_if.h>
CYGACC_CALL_IF_DELAY_US(_n_ms);
--
Gary Thomas <gary@mlbassoc.com>
MLB Associates
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* RE: [ECOS] short accurate delay in DSR or startup
[not found] <001401c473ea$8301c7d0$8601a8c0@k7sem>
@ 2004-07-27 15:52 ` Gary Thomas
0 siblings, 0 replies; 3+ messages in thread
From: Gary Thomas @ 2004-07-27 15:52 UTC (permalink / raw)
To: harmon; +Cc: eCos Discussion
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On Tue, 2004-07-27 at 09:00, harmon wrote:
> Thank you for your response to my question.
>
> However, when I try to use the CYGACC_CALL_IF_DELAY_US call, my library
> builds, but the application does not link.
>
> /ecos-c/cygwin/opt/ecos/ecos-2.0/packages/devs/usb/Nc2270/v2_0/src/usbs_
> Nc2270.c
> :3378: undefined reference to `CYGACC_CALL_IF_DELAY_US'
>
> Is this an option that needs enabled??
You need this line in your code:
#include <cyg/hal/hal_if.h>
>
> Larry
>
> -----Original Message-----
> From: ecos-discuss-owner@ecos.sourceware.org
> [mailto:ecos-discuss-owner@ecos.sourceware.org] On Behalf Of Gary Thomas
> Sent: Monday, July 26, 2004 8:22 PM
> To: harmon
> Cc: ecos-discuss@sources.redhat.com
> Subject: Re: [ECOS] short accurate delay in DSR or startup
>
> On Mon, 2004-07-26 at 17:53, harmon wrote:
> > When initializing a chip, I need to delay for ~ 1 millisecond. I
> can't
> > use any blocking calls, so I am now using a simple for loop to eat up
> > time. Is there a portable, accurate way to delay within a DSR or
> > initialization code?
>
> #include <cyg/hal/hal_if.h>
>
> CYGACC_CALL_IF_DELAY_US(_n_ms);
>
> --
> Gary Thomas <gary@mlbassoc.com>
> MLB Associates
--
Gary Thomas <gary@mlbassoc.com>
MLB Associates
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Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
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2004-07-27 4:14 [ECOS] short accurate delay in DSR or startup harmon
2004-07-27 5:35 ` Gary Thomas
[not found] <001401c473ea$8301c7d0$8601a8c0@k7sem>
2004-07-27 15:52 ` Gary Thomas
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