How to set MASK & filter value for -- freescale Flexcan controller

Dinesh Guleria <[email protected]> Mon, 2 Sep 2013 16:33:12 +0530

Newsgroups	gmane.comp.hardware.bus.can
Message-ID	<CAKpDV8u8Jp8_gu8kW2UwR4OGuCt68RnFTzysiD0_0XufGghk7A@mail.gmail.com>

Hi,

Suppose i want to receive only ID_1 & ID_2.


ID_1  =  0x01;       // 0000 0001
ID_2  =  0x33;       // 0011 0011
mask = 0x32;       // 0011 0010
filter =    0x01;       // 0000 0001



   1. For MASK ---> put 1 where ever bits differ & 0 where bits are same
   2. For FILTER  --> dont care different bits & copy value where bits are
   same


Is above two steps right ?

Regards,
Dinesh