On 07/10/15 17:37, Hartley Sweeten wrote:
On Wednesday, October 07, 2015 2:20 AM, Ian Abbott wrote:
On 06/10/15 19:11, H Hartley Sweeten wrote:
Fix some minor checkpatch.pl issues and tidy up this driver a bit.
H Hartley Sweeten (13):
staging: comedi: mf6x4: prefer using the BIT macro
staging: comedi: mf6x4: remove unnecessary defines
staging: comedi: mf6x4: remove unnecessary whitespace
staging: comedi: mf6x4: sort the BAR1 register defines
staging: comedi: mf6x4: introduce a macro to select the AI channel
staging: comedi: mf6x4: A/D converter uses 2's complement coding
staging: comedi: mf6x4: remove unnecassary masking of digital outputs
staging: comedi: mf6x4: rename the digital input register defines
staging: comedi: mf6x4: rename remaining BAR1 register defines
staging: comedi: mf6x4: rename private data 'gpio_R'
staging: comedi: mf6x4: refactor block comment
staging: comedi: mf6x4: change type of local variable
staging: comedi: mf6x4: tidy up subdevice init
drivers/staging/comedi/drivers/mf6x4.c | 137
+++++++++++++++------------------
1 file changed, 63 insertions(+), 74 deletions(-)
Thanks! One thing unaccounted for is that the D/A converter also uses
2's complement coding.
Signed-off-by: Ian Abbott <abbo...@mev.co.uk>
According to the programming guide, the D/A converters use straight
binary coding:
0x3fff = 9.9988V
0x2000 = 0.0000V
0x1fff = -0.0012V
0x0000 = -10.0000V
Yes, you're correct. I misread it!
--
-=( Ian Abbott @ MEV Ltd. E-mail: <abbo...@mev.co.uk> )=-
-=( Web: http://www.mev.co.uk/ )=-
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