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Altera_Forum
Honored Contributor
15 years agoCharacter LCD on DSP Development Kit, Stratix III Edition
Hi all, does anyone have VHDL code for printing on the character LCD of the DSP Development Kit, Stratix III Edition board ? Thanks! Francesco
Altera_Forum
Honored Contributor
15 years agofile:///C:/Users/DELLCE%7E1/AppData/Local/Temp/moz-screenshot.png file:///C:/Users/DELLCE%7E1/AppData/Local/Temp/moz-screenshot-1.png i did special clk that get 25mhz and output 100khz
but also no output.can u please check the code to see whats not good file:///C:/Users/DELLCE%7E1/AppData/Local/Temp/moz-screenshot-2.png file:///C:/Users/DELLCE%7E1/AppData/Local/Temp/moz-screenshot-3.png Please help me the clock is ok but the problem in lcd code here the code of the clk library IEEE; use IEEE.STD_LOGIC_1164.all; use IEEE.STD_LOGIC_ARITH.all; use IEEE.STD_LOGIC_UNSIGNED.all; ENTITY clk_div IS PORT ( clock_25Mhz : IN STD_LOGIC; clock_1MHz : OUT STD_LOGIC; clock_100KHz : OUT STD_LOGIC; clock_10KHz : OUT STD_LOGIC; clock_1KHz : OUT STD_LOGIC; clock_100Hz : OUT STD_LOGIC; clock_10Hz : OUT STD_LOGIC; clock_1Hz : OUT STD_LOGIC); END clk_div; ARCHITECTURE a OF clk_div IS SIGNAL count_1Mhz: STD_LOGIC_VECTOR(4 DOWNTO 0); SIGNAL count_100Khz, count_10Khz, count_1Khz : STD_LOGIC_VECTOR(2 DOWNTO 0); SIGNAL count_100hz, count_10hz, count_1hz : STD_LOGIC_VECTOR(2 DOWNTO 0); SIGNAL clock_1Mhz_int, clock_100Khz_int, clock_10Khz_int, clock_1Khz_int: STD_LOGIC; SIGNAL clock_100hz_int, clock_10Hz_int, clock_1Hz_int : STD_LOGIC; BEGIN PROCESS BEGIN -- Divide by 25 WAIT UNTIL clock_25Mhz'EVENT and clock_25Mhz = '1'; IF count_1Mhz < 24 THEN count_1Mhz <= count_1Mhz + 1; ELSE count_1Mhz <= "00000"; END IF; IF count_1Mhz <= 12 THEN clock_1Mhz_int <= '0'; ELSE clock_1Mhz_int <= '1'; END IF; -- Ripple clocks are used in this code to save prescalar hardware -- Sync all clock prescalar outputs back to master clock signal clock_1Mhz <= clock_1Mhz_int; clock_100Khz <= clock_100Khz_int; clock_10Khz <= clock_10Khz_int; clock_1Khz <= clock_1Khz_int; clock_100hz <= clock_100hz_int; clock_10hz <= clock_10hz_int; clock_1hz <= clock_1hz_int; END PROCESS; -- Divide by 10 PROCESS BEGIN WAIT UNTIL clock_1Mhz_int'EVENT and clock_1Mhz_int = '1'; IF count_100Khz /= 4 THEN count_100Khz <= count_100Khz + 1; ELSE count_100khz <= "000"; clock_100Khz_int <= NOT clock_100Khz_int; END IF; END PROCESS; -- Divide by 10 PROCESS BEGIN WAIT UNTIL clock_100Khz_int'EVENT and clock_100Khz_int = '1'; IF count_10Khz /= 4 THEN count_10Khz <= count_10Khz + 1; ELSE count_10khz <= "000"; clock_10Khz_int <= NOT clock_10Khz_int; END IF; END PROCESS; -- Divide by 10 PROCESS BEGIN WAIT UNTIL clock_10Khz_int'EVENT and clock_10Khz_int = '1'; IF count_1Khz /= 4 THEN count_1Khz <= count_1Khz + 1; ELSE count_1khz <= "000"; clock_1Khz_int <= NOT clock_1Khz_int; END IF; END PROCESS; -- Divide by 10 PROCESS BEGIN WAIT UNTIL clock_1Khz_int'EVENT and clock_1Khz_int = '1'; IF count_100hz /= 4 THEN count_100hz <= count_100hz + 1; ELSE count_100hz <= "000"; clock_100hz_int <= NOT clock_100hz_int; END IF; END PROCESS; -- Divide by 10 PROCESS BEGIN WAIT UNTIL clock_100hz_int'EVENT and clock_100hz_int = '1'; IF count_10hz /= 4 THEN count_10hz <= count_10hz + 1; ELSE count_10hz <= "000"; clock_10hz_int <= NOT clock_10hz_int; END IF; END PROCESS; -- Divide by 10 PROCESS BEGIN WAIT UNTIL clock_10hz_int'EVENT and clock_10hz_int = '1'; IF count_1hz /= 4 THEN count_1hz <= count_1hz + 1; ELSE count_1hz <= "000"; clock_1hz_int <= NOT clock_1hz_int; END IF; END PROCESS; END a;