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CTU CAN FD IP Core
Commit d09c3e26 authored by Ille, Ondrej, Ing.'s avatar Ille, Ondrej, Ing.
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Merge branch '175-13-vs-14-consecutive' into 'master' 

Resolve "13 vs 14 consecutive"

Closes #175

See merge request illeondr/CAN_FD_IP_Core!153
parents ff4090c0 3b0cb489
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        src/CAN_Core/protocolControl.vhd
        View file @ d09c3e26
        ......@@ -238,6 +238,9 @@
        -- avoid interpretation of SOF as Overload flag direclty
        -- after integration!
        -- 2. Added explicit Form Error detection in "delim_ack"!
        -- 7.9.2018 Fixed duration of overload flag superposition and error flag
        -- superposition. After accepting 14 DOMINANT Bits (not 13
        -- as before), error counter is incremented again!
        --------------------------------------------------------------------------------
        Library ieee;
        ......@@ -2813,7 +2816,7 @@ begin
        --------------------------------------------------------------------
        -- Pointer for recieving the superposition of error flags
        --------------------------------------------------------------------
        tran_pointer <= 12;
        tran_pointer <= 13;
        err_frame_state <= err_flg_sup;
        destuff_enable_r <= '0';
        ......@@ -2949,7 +2952,7 @@ begin
        -- recessive and detected
        ------------------------------------------------
        -- We accepted 13-th consecutive DOMINANT bit ->
        -- We accepted 14-th consecutive DOMINANT bit ->
        -- Error again??
        ------------------------------------------------
        elsif (data_rx = DOMINANT and tran_pointer = 0)
        ......@@ -2974,7 +2977,7 @@ begin
        -- transmitting its error flag there will be
        -- recessive bit, not dominant!
        ------------------------------------------------
        if ((tran_pointer = 5) and (OP_State = reciever))
        if ((tran_pointer = 6) and (OP_State = reciever))
        then
        -- First bit detected Dominant after active
        -- error flag was sent!
        ......@@ -3075,7 +3078,7 @@ begin
        control_pointer <= 6;
        -- Pointer for recieving the superposition of ovverload flags
        tran_pointer <= 12;
        tran_pointer <= 13;
        ovr_frame_state <= ovr_flg_sup;
        stuff_enable_r <= '0';
        ......@@ -3148,7 +3151,7 @@ begin
        end if;
        --------------------------------------------------------
        -- We accepted 13-th consecutive DOMINANT bit in
        -- We accepted 14-th consecutive DOMINANT bit in
        -- superposition --> Error!
        --------------------------------------------------------
        elsif (data_rx = DOMINANT and tran_pointer = 0) then
        ......
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