Subject: |
Re: struck sis3316 digitizer ADC data transfer with RTEMS |
From: |
Michael Davidsaver <[email protected]> |
To: |
[email protected] |
Date: |
Thu, 29 Jan 2015 10:36:21 -0500 |
On 01/29/2015 10:05 AM, Geon-Yeong Mun wrote:
> Hello,
>
> I am trying to develop the epics driver for struck sis3316 with RTEMS.
> But, I have difficulty in doing transfer the ADC data using DMA.
> The below code is my code. There is no error. But returned data does not
> match expected data.
Can you be more specific about what you see (or don't see)?
1. Does sis3316::dmaIsr run?
2. Do the contents of your DMA buffer uint_adc_buffer change?
> BSP_VMEDmaListStart(0,m_head);
...
> // reset FSM again
I haven't looked at the 3316 before, but this sequence seems unexpected.
Could the reset operation be changing the contents of the same memory
as the DMA controller is reading it?
Michael
- References:
- struck sis3316 digitizer ADC data transfer with RTEMS Geon-Yeong Mun
- Navigate by Date:
- Prev:
struck sis3316 digitizer ADC data transfer with RTEMS Geon-Yeong Mun
- Next:
Re: trouble building asyn driver on FreeBSD Andrew Johnson
- Index:
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
<2015>
2016
2017
2018
2019
2020
2021
2022
2023
2024
- Navigate by Thread:
- Prev:
struck sis3316 digitizer ADC data transfer with RTEMS Geon-Yeong Mun
- Next:
CA Gateway 2.0.6.0 released Ralph Lange
- Index:
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
<2015>
2016
2017
2018
2019
2020
2021
2022
2023
2024
|