Hi try create simply custom component. In the pdf altera avalon specification is described MM slave. I wrote this vhdl(very simply, i try learn add component):
entity MyCustom is
port
(
clk : in std_logic;
wr : in std_logic;
write_data : in std_logic_vector(7 downto 0);
reset : in std_logic;
-- conduit
led: out std_logic_vector(7 downto 0)
);
end MyCustom;
architecture pokus of MyCustom is
begin
process(clk,reset)
begin
if (reset='0') then
led<="00000000";
elsif(clk = '1' and clk'event)then
if(wr = '1')then
led <= write_data;
else null;
end if;
end if;
end process;
end pokus;
signal from entity are the same like on example in the pdf.
i wanna only write values to output. C code is this:
# include <stdio.h>
# include <system.h>
# include <io.h>
int main()
{
IOWR(0x00011018,0,0x0f);
return 0;
}
But it doesnt work, is that wrong way?
Thanks, Vaclav
