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Altera_Forum's avatar
Altera_Forum
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15 years ago

VHDL timer

hi, how can I write a program for a timer which Measures a pulse width that represents of range.i'm using un ultrasonic sensor, The distance can be calculated using the scale factor of 147u...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Ok I wrote this code for timer 2 second in Ahdl so please how can I convert it to VHDL

SUBDESIGN 2_sec_cnt

(

clk ,enl: INPUT;

2_second : OUTPUT;

)

VARIABLE

count[25..0] : DFF;

BEGIN

count[].clk = clk;

IF (enl)Then

IF ((count[].q == 48000000)) THEN

count[].d = 0;

2_second = VCC;

ELSE

count[].d = count[].q + 1;

2_second = GND;

END IF;

Else

2_second = GND;

END IF;

END;