mirror of
https://github.com/UzixLS/TSConf_MiST.git
synced 2025-07-18 23:01:37 +03:00
Some fixes and improvements.
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@ -68,7 +68,6 @@ port
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SDRAM_DQ : inout std_logic_vector(15 downto 0);
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SDRAM_A : out std_logic_vector(12 downto 0);
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SDRAM_BA : out std_logic_vector(1 downto 0);
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SDRAM_CLK : out std_logic;
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SDRAM_DQML : out std_logic;
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SDRAM_DQMH : out std_logic;
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SDRAM_WE_N : out std_logic;
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@ -344,9 +343,6 @@ signal key : std_logic_vector(4 downto 0) := "00000";
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signal clk_hdmi : std_logic;
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signal csync_ts : std_logic;
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signal hdmi_d1_sig : std_logic;
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-- I2C
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signal i2c_do_bus : std_logic_vector(7 downto 0);
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signal i2c_wr : std_logic;
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signal mouse_do : std_logic_vector(7 downto 0);
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-------------------------------------------------------------------------------
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@ -1269,8 +1265,6 @@ port map (
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CLK => clk_84mhz,
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clk_28MHz=> clk_28mhz,
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c0 => c0,
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c1 => c1,
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c2 => c2,
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c3 => c3,
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curr_cpu => curr_cpu, -- from arbiter for luch DO_cpu
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loader => loader, -- loader = 1: wr to ROM
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@ -1281,22 +1275,16 @@ port map (
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DO_cpu => sdr2cpu_do_bus_16,
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REQ => dram_req,
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RNW => dram_rnw,
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RFSH => not cpu_rfsh_n,
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RFSHREQ => open,
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IDLE => open,
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CK => SDRAM_CLK,
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CKE => open,
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CKE => SDRAM_CKE,
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RAS_n => SDRAM_RAS_N,
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CAS_n => SDRAM_CAS_N,
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WE_n => SDRAM_WE_N,
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BA1 => SDRAM_BA(1),
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BA0 => SDRAM_BA(0),
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CS_n => SDRAM_CS_N,
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BA => SDRAM_BA,
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MA => SDRAM_A,
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DQ => SDRAM_DQ(15 downto 0),
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DQML => SDRAM_DQML,
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DQMH => SDRAM_DQMH,
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dram_stb => open,
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TST => open);
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DQMH => SDRAM_DQMH);
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SE5: entity work.keyboard
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port map(
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@ -1367,22 +1355,6 @@ port map (
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CN1_B => ssg_cn1_b,
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CN1_C => ssg_cn1_c);
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-- I2C Controller
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--U12: entity work.i2c
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--port map (
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-- RESET => reset,
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-- CLK => clk_28mhz,
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-- ENA => ena_0_4375mhz,
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-- A => cpu_a_bus(4),
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-- DI => cpu_do_bus,
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-- DO => i2c_do_bus,
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-- WR => i2c_wr,
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-- I2C_SCL => SCL,
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-- I2C_SDA => SDA);
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SDRAM_CKE <= '1'; -- pullup
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SDRAM_CS_N <= '0'; -- pulldown
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-------------------------------------------------------------------------------
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-- Global
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-------------------------------------------------------------------------------
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@ -1414,7 +1386,7 @@ cpu_di_bus <= rom_do_bus when (loader = '1' and cpu_mreq_n = '0' and cpu_rd_n =
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ssg_cn0_bus when (cpu_iorq_n = '0' and cpu_rd_n = '0' and cpu_a_bus = "1111111111111101" and ssg_sel = '0') else -- TurboSound
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ssg_cn1_bus when (cpu_iorq_n = '0' and cpu_rd_n = '0' and cpu_a_bus = "1111111111111101" and ssg_sel = '1') else
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key_scancode when (cpu_iorq_n = '0' and cpu_rd_n = '0' and cpu_a_bus = X"0001") else
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i2c_do_bus when (cpu_iorq_n = '0' and cpu_rd_n = '0' and cpu_a_bus( 7 downto 5) = "100" and cpu_a_bus(3 downto 0) = "1100") else -- RTC
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X"FF" when (cpu_iorq_n = '0' and cpu_rd_n = '0' and cpu_a_bus( 7 downto 5) = "100" and cpu_a_bus(3 downto 0) = "1100") else -- RTC
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dout_ports when ena_ports = '1' else
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"11111111";
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@ -1465,8 +1437,6 @@ port_bff7 <= '1' when (cpu_iorq_n = '0' and cpu_a_bus = X"BFF7" and cpu_m1_n = '
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--SD_CS_N <= sdcs_n_TS or loader;
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SD_CS_N <= sdcs_n_TS;
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-- I2C
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i2c_wr <= '1' when (cpu_a_bus(7 downto 5) = "100" and cpu_a_bus(3 downto 0) = "1100" and cpu_wr_n = '0' and cpu_iorq_n = '0') else '0'; -- Port xx8C/xx9C[xxxxxxxx_100n1100]
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SOUND_L <= ("000" & port_xxfe_reg(4) & "0000000") + ("000" & ssg_cn0_a) + ("000" & ssg_cn0_b) + ("000" & ssg_cn1_a) + ("000" & ssg_cn1_b) + ("000" & covox_a) + ("000" & covox_b);
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SOUND_R <= ("000" & port_xxfe_reg(4) & "0000000") + ("000" & ssg_cn0_c) + ("000" & ssg_cn0_b) + ("000" & ssg_cn1_c) + ("000" & ssg_cn1_b) + ("000" & covox_c) + ("000" & covox_d);
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