sorry, my abs_encoder is 15 bit type, showing at page 56 (63 is pdf page), it hasn't phase S.
The problem is phase A has 2 functions, send serial data and incremental pulses so i think i will connect it to 1 UART port and 1 encoder counter port, after receive serial data, i will reset counter. Seem there is not 5i25 firmware support both function so i think i have to make one. I will try use UART to get first serial data output. 2018-03-09 4:35 GMT+07:00 andy pugh <bodge...@gmail.com>: > On 8 March 2018 at 09:39, Thắng Lê <lethang12...@gmail.com> wrote: > > > + Writing a firmware file absyaskawa.vhd with VHDL language then add in > > xilinx library so i can flash new firmware for my mesa card (i'm very new > > with FPGA,i need to learn VHDL first). > > You might not need to do this. > > It looks like the absolute data is available on the S channel as > simple serial data. > > So you might be able to use the Mesa UART or PktUART Hostmot2 modules. > > You would need a simple HAL component to interpret the data. This > would output the various fault bits and add the start-up offset to the > output of a conventional encoder module. > > Here is a HAL driver that uses the pktUART Hostmot2 component. (Note > that there is a typo in the line where is says "loadrt mesa_uart...". > For that HAL component it should be "loadrt mesa_pktgyro_test...." > > As the data is ASCII coded the HAL component would need to change that > to floating point engineering units. > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1916 > > ------------------------------------------------------------ > ------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > -- Lê Thắng Phone: (+84) 1222443855 Email: lethang12...@gmail.com ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
