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I have this sample code to display counter on LCD module HD44780 same as your FPGA board has!
You just need to add tie hi ouput pin for LCD_ON. LCDBLON should not be used as per user manual for DE2-115
module top(
// Outputs
DATA_BUS, LCD_E, LCD_RS,
// Inputs
clk_12Mhz, reset
)...
Because the bins are mutually exclusive {c1.a1, c1.a2, c1.a3, c1.a4, c1.a5} i.e. no two will be true at a time hence their anding
will be false always and you see no bins created! Hope you got it!
In your case for unaligned address you not only need to decode upper address bits CPU_ADDR[15:13] to generate
the chip select CS but also you need to generate ROM_ADDR[14:13] as follows...
CPU_ADDR[15:13]
ROM_ADDR[14:13]
ROM_CS
3'b001
2'b00
1
3'b010
2'b01
1...
A tachometer operates by measuring the frequency of firing of the
engine's points. There are two approaches for doing this. The first
is to simply count the number of firings in a fixed period of time,
as was done in Project C2. Although this is by far the simplest of
the methods, it will be...
Checkout book by Wakerly "Logic design projects using standard integrated circuits"
Experiment C7 Digital Tachometer pg.no. 101
You need to change the design architecture as shown.
Hope this helps!
May be this is what you are looking for ...
// counter has a synchronous
//active-high reset and it is a negative edge triggered synchronous counter.
module updown_synccounter (clk, reset, select, out);
input clk, reset, select;
output [2:0] out;
reg [1:0] count;
assign out =...
The formula to check for divisibility by 3 exists for decimal numbers. In decimal numbers if the mod 3 sum of
digit is 3 or 9 the number is divisible by 3. To find if a binary number is divisible by 3 or not you first need to
convert the number to its BCD equivalent and perform digit additions...
memcoll [1]<=rxmemory [1]- 8'h20;
temp<=memcoll [1];
temp1[7:-temp]== uid[39:-temp];
What I understand from ur code is temp and temp1 are 8 bit variables
and this is what you want to do!
case (temp)
0 : equal = temp1[7]== uid[39];
1 : equal = temp1[7:6]== uid[39:38];
3 ...
You are right. write and writeline are taken from textio lib.
By default PRINT_TIME is set to false because you dont want to print current time always .
You can overwrite it to true if you want to print the time!
Probably you want to add two numbers (BCD addition) and display them on 7seg displays.
Here is the code I modified to do that.. Hope this helps!
module Lab2ex2part5(A1,A0,B1,B0,S2,S1,S0,SW,HEX0,HEX1,HEX2,HEX4,HEX5,HEX6,HEX7);
input [15:0] SW;
input [3:0] A1,A0,B1,B0;
output [3:0]...
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