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Altera_Forum
Honored Contributor I
1,308 Views

Error while running in quartus

Dear all, 

Due to this line in my project I got errors 

 

 

LEDR <= std_logic_vector(to_unsigned(result,10) ); 

 

this is my error in my project 

 

Error (10029): Constant driver at lb.vhd(65) 

Error (10028): Can't resolve multiple constant drivers for net "LEDR[8]" at lb.vhd(23) 

Error (10028): Can't resolve multiple constant drivers for net "LEDR[7]" at lb.vhd(23) 

Error (10028): Can't resolve multiple constant drivers for net "LEDR[6]" at lb.vhd(23) 

Error (10028): Can't resolve multiple constant drivers for net "LEDR[5]" at lb.vhd(23) 

Error (10028): Can't resolve multiple constant drivers for net "LEDR[4]" at lb.vhd(23) 

Error (10028): Can't resolve multiple constant drivers for net "LEDR[3]" at lb.vhd(23) 

Error (10028): Can't resolve multiple constant drivers for net "LEDR[2]" at lb.vhd(23) 

Error (10028): Can't resolve multiple constant drivers for net "LEDR[1]" at lb.vhd(23) 

Error (10028): Can't resolve multiple constant drivers for net "LEDR[0]" at lb.vhd(23) 

Error (12153): Can't elaborate top-level user hierarchy 

Error: Quartus Prime Analysis & Synthesis was unsuccessful. 12 errors, 2 warnings 

 

 

Help me out please. 

 

Thanks
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1 Reply
Altera_Forum
Honored Contributor I
67 Views

This implies you have LEDR driven from multuiple places. Make sure it is not assigned elsewhere in another process, or in another stand alone line. (try looking at line 23 and 65)

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