Dominick.Vansevenant/Zorro-LAN-IDE
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No swap of upper/lower word

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This commit is contained in:
MHeinrichs
2018-12-19 19:01:29 +01:00
parent d0da391575
commit 00f475fed5
24 changed files with 8717 additions and 8851 deletions
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Logic/LAN_IDE/LAN_IDE_CP.vhd
+8 -8
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@@ -325,7 +325,7 @@ begin
LAN_RD_S <= '0';
LAN_WRH_S <= '0';
LAN_WRL_S <= '0';
Z3_A_LOW <= DQ_SWAP;
Z3_A_LOW <= '0';
LAN_READY <= '0';
case LAN_SM is
when nop=>
@@ -345,7 +345,7 @@ begin
elsif(Z3_DS(3 downto 2) = "01")then
DQ_DATA(15 downto 0) <= Z3_DATA_IN(31 downto 24) & Z3_DATA_IN(31 downto 24);
else -- lower word!
Z3_A_LOW <= not DQ_SWAP;
Z3_A_LOW <= '1';
if(Z3_DS(1 downto 0) = "00")then
if(DQ_SWAP='0') then
@@ -396,15 +396,15 @@ begin
LAN_READY <='1';
LAN_SM <= end_read_upper; -- stay here until cylce end
else
Z3_A_LOW <= not DQ_SWAP;
Z3_A_LOW <= '1';
LAN_SM <= start_read_lower;
end if;
when start_read_lower=>
Z3_A_LOW <= not DQ_SWAP;
Z3_A_LOW <= '1';
LAN_RD_S <= '1';
LAN_SM <= wait_read_lower;
when wait_read_lower=>
Z3_A_LOW <= not DQ_SWAP;
Z3_A_LOW <= '1';
LAN_RD_S <= '1';
LAN_READY <= '1';
LAN_SM<=end_read_lower;
@@ -444,17 +444,17 @@ begin
LAN_READY <='1';
LAN_SM <= end_write_upper; -- stay here until cylce end
else
Z3_A_LOW <= not DQ_SWAP;
Z3_A_LOW <= '1';
LAN_SM <= start_write_lower;
end if;
when start_write_lower=>
Z3_A_LOW <= not DQ_SWAP;
Z3_A_LOW <= '1';
-- swapped DS0/DS1 here: ENC624 is little endian
LAN_WRH_S <= not Z3_DS(0);
LAN_WRL_S <= not Z3_DS(1);
LAN_SM <= wait_write_lower;
when wait_write_lower=>
Z3_A_LOW <= not DQ_SWAP;
Z3_A_LOW <= '1';
LAN_READY <='1';
LAN_SM<=end_write_lower;
when end_write_lower=>