Posted on November 24, 2015 at 18:06Hi,
I'm using
a
STM32F407
,
I'm implementing
the CAN
communication
.
My purpose
is
to receive
only
one type of
message
and
filter out all
other messages
.
I can not understand
which
settings to use for
filtering messages
.
I get messages
on CAN1 (Master),
FIFO0,
with
EXID
=
0x0654
.
My Filter setup is:
sFilterConfig.FilterNumber = 0; // Inizializzo il filtro n�0
sFilterConfig.FilterMode = CAN_FILTERMODE_IDMASK;
sFilterConfig.FilterScale = CAN_FILTERSCALE_32BIT;
sFilterConfig.FilterIdHigh = 0x0000;
sFilterConfig.FilterIdLow = 0x0654;
sFilterConfig.FilterMaskIdHigh =0xFFFF;
sFilterConfig.FilterMaskIdLow = 0x0000;
sFilterConfig.FilterFIFOAssignment = 0;
sFilterConfig.FilterActivation = ENABLE;
sFilterConfig.BankNumber = 14;
Can someone
explain to me how
you
choose values
of
FilterIdHigh,
FilterIdLow
, FilterMaskIdHigh
and
FilterMaskIdLow
to set the
filter
to receive
only
mess
with
ID
=
0x0654
?
thank you all.
#stm32-can-filter-conf
