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FMC ADC 100M 14b 4cha
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FMC ADC 100M 14b 4cha
Commits
bb859ef7
Commit
bb859ef7
authored
Oct 19, 2018
by
Federico Vaga
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drv bugfix according to ZIO offset is uV
Signed-off-by:
Federico Vaga
<
federico.vaga@cern.ch
>
parent
e9efa126
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3 deletions
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fa-core.c
kernel/fa-core.c
+3
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kernel/fa-core.c
View file @
bb859ef7
...
...
@@ -112,7 +112,7 @@ static int zfad_offset_to_dac(struct zio_channel *chan,
struct
fa_dev
*
fa
=
get_zfadc
(
&
chan
->
cset
->
zdev
->
head
.
dev
);
int
offset
,
gain
,
hwval
;
hwval
=
uval
*
0x8000
/
5000
;
hwval
=
uval
*
0x8000
/
5000
000
;
if
(
hwval
==
0x8000
)
hwval
=
0x7fff
;
/* -32768 .. 32767 */
...
...
@@ -144,9 +144,9 @@ int zfad_apply_user_offset(struct fa_dev *fa, struct zio_channel *chan,
{
uint32_t
range_reg
;
int32_t
uval
=
(
int32_t
)
usr_val
;
int
offset
,
gain
,
hwval
,
i
,
range
;
int
hwval
,
i
,
range
;
if
(
uval
<
-
5000
||
uval
>
5
000
)
if
(
uval
<
-
5000
000
||
uval
>
5000
000
)
return
-
EINVAL
;
i
=
zfad_get_chx_index
(
ZFA_CHx_CTL_RANGE
,
chan
);
...
...
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