PROTECTED]
Sent: Friday, August 03, 2007 16:37
To: Arie Muijnck
Cc: Peter Wippich; davinci-linux-open-source@linux.davincidsp.com
Subject: RE: DaVinci I2C Speed
Arie,
How fast a bus speed are you getting with your bit-banging driver?
Regards,
Andrew
On Fri, 2007-08-03 at 10:28 -0400
system is about the same.
Arie de Muijnck
-Original Message-
From: Andrew Armstrong [mailto:[EMAIL PROTECTED]
Sent: Friday, August 03, 2007 16:37
To: Arie Muijnck
Cc: Peter Wippich; davinci-linux-open-source@linux.davincidsp.com
Subject: RE: DaVinci I2C Speed
Arie
Hi Andrew,
On Fri, 3 Aug 2007, Andrew Armstrong wrote:
Has anyone else noticed that the DaVinci I2C bus runs at an extrememly
slow speed?
The code appears to acknowledge that it should run faster but it has
been set to run at only a fraction of its potential?
If I remember right this
.
Arie de Muijnck
-Original Message-
From: Andrew Armstrong [mailto:[EMAIL PROTECTED]
Sent: Friday, August 03, 2007 16:37
To: Arie Muijnck
Cc: Peter Wippich; davinci-linux-open-source@linux.davincidsp.com
Subject: RE: DaVinci I2C Speed
Arie,
How fast a bus speed are you getting with your bit
Hi Andrew,
which kernel are you using ?? I've not measured bus speed, but if I can
trust the comments and settings in the driver from the GIT kernel it
should run with 400 kHz on my custom platform.
I'll measure real speed if I find some time
Ciao,
Peter
On Fri, 3 Aug 2007,
Sent: Friday, August 03, 2007 16:18
To: Peter Wippich
Cc: davinci-linux-open-source@linux.davincidsp.com
Subject: Re: DaVinci I2C Speed
Peter,
That possibly could be a reason for its default, however, I am using
this on my own hardware which does not use a MSP430.
I have played
Andrew Armstrong wrote:
Has anyone else noticed that the DaVinci I2C bus runs at an extrememly
slow speed?
The code appears to acknowledge that it should run faster but it has
been set to run at only a fraction of its potential?
20 KHz precisely, instead of the 100KHz the controller is
Peter,
That possibly could be a reason for its default, however, I am using
this on my own hardware which does not use a MSP430.
I have played with the speed and no way does it approach 100 or 400, 65
is the fastest I can get it to run at before it goes nuts.
Regards,
Andrew
On Fri,
