Reply by johnthomasedwardtimm●July 10, 20042004-07-10
> AFAIK the receive acceptance filters always have
to be used. However, > those are very flexible and instead of selecting
specific, single
> messages to receive you can also specify ranges - so the range you
> are probably looking for is something like 0x000 to 0x7FF to receive > all standard CAN messages.
If you set AFMR = 0x03, you can receive all messages. AFMR = 0x03
means that Acceptance Filter is not operational (AccOff) and All Rx
messages are accepted on enabled CAN controllers (AccBP) (p. 207 of
the User's Manual).
Reply by Tutors of ESAcademy●July 7, 20042004-07-07
NOTE: I have not tried this, just trying to provide a quick "push
into the right direction"...
--- In , "balabh2000" <balabh2000@y...> wrote: > i have been working on the FULL CAN code provided
in the files
> section as an example. I am workin on MCB2100 boards and was
> wondering if it was possible to configure the same in BASIC CAN mode. >
> If i just try disabling the global acceptance filter using the > AFMR register the reciever interrupt does not seem
to be working at
> all.
>
> The LPC2129 user manual
> (http://www.semiconductors.philips.com/acrobat/usermanuals/UM_LPC21XX_ > LPC22XX_2.pdf)also refers to enteries in the table
of standard
> identifier range table but some code segment would have been
> extremely useful.
AFAIK the receive acceptance filters always have to be used. However,
those are very flexible and instead of selecting specific, single
messages to receive you can also specify ranges - so the range you
are probably looking for is something like 0x000 to 0x7FF to receive
all standard CAN messages.
The example you mentioned places ZERO entries into the "Standard
Group" section of the table and several entries into the "Standard
Individual Section".
You would need to make one entry in the "Standard Group" section
specifying the lower and the upper bound of what you want to receive.
The entry format is described in Figure 36 "Entry in Standard
Identifier Range Table" in the User Manual.
Olaf
Tutor at ESAcademy
Reply by balabh2000●July 6, 20042004-07-06
Hi
i have been working on the FULL CAN code provided in the files
section as an example. I am workin on MCB2100 boards and was
wondering if it was possible to configure the same in BASIC CAN mode.
If i just try disabling the global acceptance filter using the
AFMR register the reciever interrupt does not seem to be working at
all.