diff options
Diffstat (limited to 'basys3/basys3.srcs/ppu_dispctl.vhd')
| -rw-r--r-- | basys3/basys3.srcs/ppu_dispctl.vhd | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/basys3/basys3.srcs/ppu_dispctl.vhd b/basys3/basys3.srcs/ppu_dispctl.vhd index ac8fbcf..1bff09d 100644 --- a/basys3/basys3.srcs/ppu_dispctl.vhd +++ b/basys3/basys3.srcs/ppu_dispctl.vhd @@ -11,7 +11,7 @@ entity ppu_dispctl is port( X : out std_logic_vector(PPU_POS_H_WIDTH-1 downto 0); -- tiny screen pixel x Y : out std_logic_vector(PPU_POS_V_WIDTH-1 downto 0); -- tiny screen pixel y RI,GI,BI : in std_logic_vector(PPU_COLOR_OUTPUT_DEPTH-1 downto 0); -- color in - PREADY : in std_logic; -- current pixel ready (pixel color is stable) + BWEN : in std_logic; -- scanline buffer write enable RO,GO,BO : out std_logic_vector(PPU_COLOR_OUTPUT_DEPTH-1 downto 0); -- VGA color out NVSYNC, NHSYNC : out std_logic; -- VGA sync out @@ -32,11 +32,8 @@ architecture Behavioral of ppu_dispctl is addra : in std_logic_vector(PPU_DISPCTL_SLBUF_ADDR_WIDTH-1 downto 0); dina : in std_logic_vector(PPU_RGB_COLOR_OUTPUT_DEPTH-1 downto 0); clkb : in std_logic; - rstb : in std_logic; addrb : in std_logic_vector(PPU_DISPCTL_SLBUF_ADDR_WIDTH-1 downto 0); - doutb : out std_logic_vector(PPU_RGB_COLOR_OUTPUT_DEPTH-1 downto 0); - rsta_busy : out std_logic; - rstb_busy : out std_logic); + doutb : out std_logic_vector(PPU_RGB_COLOR_OUTPUT_DEPTH-1 downto 0)); end component; signal NPIXCLK, TPIXCLK : std_logic; signal NHCOUNT, NVCOUNT : unsigned(PPU_VGA_SIGNAL_PIXEL_WIDTH-1 downto 0) := (others => '0'); @@ -144,15 +141,12 @@ begin scanline_buffer : component ppu_dispctl_slbuf port map( clka => SYSCLK, - wea => (others => PREADY), + wea => (others => BWEN), addra => ADDR_I, dina => DATA_I, clkb => SYSCLK, - rstb => RESET, addrb => ADDR_O, - doutb => DATA_O, - rsta_busy => open, - rstb_busy => open); + doutb => DATA_O); pixel_clock: component ppu_dispctl_pixclk port map( sysclk => SYSCLK, |