Revision 44
Added by markw over 11 years ago
| common/zpu/zpu_config_regs.vhdl | ||
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-- spi - for sd card access without bit banging...
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-- 200KHz to start with - probably fine for 8-bit, can up it later after init
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spi_master1 : entity work.spi_master
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generic map(slaves=>1,d_width=>8)
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port map (clock=>clk,reset_n=>reset_n,enable=>spi_enable,cpol=>'0',cpha=>'0',cont=>'0',clk_div=>to_integer(unsigned(spi_speed_reg)),addr=>to_integer(unsigned(vectorize(spi_addr_reg))),
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tx_data=>spi_tx_data, miso=>spi_miso,sclk=>spi_clk_out,ss_n=>spi_chip_select,mosi=>spi_mosi,
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rx_data=>spi_rx_data,busy=>spi_busy);
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-- spi-programming model:
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-- reg for write/read
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| ... | ... | |
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-- uart - another Pokey! Running at atari frequency.
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wr_en_pokey <= addr(4) and wr_en;
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pokey1 : entity work.pokey
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port map (clk=>clk,CPU_MEMORY_READY=>pokey_enable,ANTIC_MEMORY_READY=>pokey_enable,addr=>addr(3 downto 0),data_in=>cpu_data_in(7 downto 0),wr_en=>wr_en_pokey,
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port map (clk=>clk,ENABLE_179=>pokey_enable,addr=>addr(3 downto 0),data_in=>cpu_data_in(7 downto 0),wr_en=>wr_en_pokey,
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reset_n=>reset_n,keyboard_response=>"11",pot_in=>X"00",
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sio_in1=>sio_data_out,sio_in2=>'1',sio_in3=>'1', -- TODO, pokey dir...
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data_out=>pokey_data_out,
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| ... | ... | |
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spi_addr_next <= spi_addr_reg;
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spi_tx_data <= (others=>'0');
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spi_enable <= '0';
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out1_next <= out1_reg;
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out2_next <= out2_reg;
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out3_next <= out3_reg;
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out4_next <= out4_reg;
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paused_next <= '0';
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if (not(pause_reg = X"00000000") and POKEY_ENABLE='1') then
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pause_next <= std_LOGIC_VECTOR(unsigned(pause_reg)-to_unsigned(1,32));
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pause_next <= pause_reg;
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if (not(pause_reg = X"00000000")) then
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if (POKEY_ENABLE='1') then
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pause_next <= std_LOGIC_VECTOR(unsigned(pause_reg)-to_unsigned(1,32));
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end if;
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paused_next <= '1';
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end if;
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Also available in: Unified diff
Added missing spi component! Fix pokey instantiation. Fix pause.