Re: string recognize and led


"Amit" <amit.kohan@xxxxxxxxx> wrote in message
news:1194495166.085775.169570@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Hello group,

I'm writing a code to recognize two strings of 0s and 1s base on a
Moore machine.
Not how I would approach it, but OK.

The goal is to wait for two numbers (let's say 75). One
string will represent 7 and the other represents 5.

Let's say:

5= 000010000100
7= 000010000110


Now, when the appropriate string (digit) is recongnized the number
must be displayed on an LED on Altera board (DE2). I understand that
I have to add a mulitplexer to do this but the thing I am not sure
that how can I keep the number (7) intact till recognizing the next
appropriate number (5)? (other numbers must be ignored)
process(Clock)
begin
if rising_edge(Clock) then
if (Input_String = "000010000100") then
Led_Display <= Whatever you need to display a '5'
elsif (Input_String = "000010000110") then
Led_Display <= Whatever you need to display a '7'
end if;
end if;
end process;

Do I need a latch?
A flip flop(s) to hold the data.

if this is right, then can I only simulate it using
if statement?

Why restrict yourself to only one statement type. Use the appropriate
statements.

KJ


.

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