Quartus compilation problem

Question

Hi all, I met a strange problem: when i use quartusii,a project first compiled  need the Logic Elements is 13%,but then, i compiled again is 1%. :confused:

altera_forum · Answer

--- Quote Start ---

Hi all,

I met a strange problem: when i use quartusii,a project first compiled need the Logic Elements is 13%,but then, i compiled again is 1%. :confused:

--- Quote End ---

Hi cherry,

without any change ???? No design change, no settings changed ....

Kind regards

GPK

altera_forum · Answer

this is the main program

library ieee;

use ieee.std_logic_1164.all;

use ieee.std_logic_arith.all;

entity up3_board1 is

port( datain_adc: IN STD_LOGIC_VECTOR(7 downto 0);--input from ADC

clock: IN STD_LOGIC; -- Clock Input from Altera Board

dataout_serial: BUFFER STD_LOGIC_VECTOR(7 downto 0));--8 bit data for trasmitting

end up3_board1;

architecture BEHAVIOR of up3_board1 is

------------------ COMPONENT UARTTransmitter------------------------------------------------

component UARTTransmitter

port ( txd_data: IN STD_LOGIC_VECTOR( 7 DOWNTO 0));

end component;

------------component UARTTrasmitter------------------------------------------------------

BEGIN

PROCESS(clock,datain_adc)

BEGIN

if datain_adc="00000000"--data from ADC,not correct yet..

then

dataout_serial<="00000000"; -- pH 0.0,fake data

txd_data<=dataout_serial;

elsif datain_adc="00000001"

then

dataout_serial<="00000101";-- pH 0.5

txd_data<=dataout_serial;

elsif datain_adc="00000010"

then

dataout_serial<="00010000"; -- pH 1.0

txd_data<=dataout_serial;

elsif datain_adc="00000011"

then

dataout_serial<="00010101"; -- pH 1.5

txd_data<=dataout_serial;

elsif datain_adc="00000100"

then

dataout_serial<="00100000";-- pH 2.0

txd_data<=dataout_serial;

elsif datain_adc="00000101"

then

dataout_serial<="00100101"; -- pH 2.5

txd_data<=dataout_serial;

elsif datain_adc="00000110"

then

dataout_serial<="00110000"; -- pH 3.0

txd_data<=dataout_serial;

elsif datain_adc="00000111"

then

dataout_serial<="00110101"; -- pH 3.5

txd_data<=dataout_serial;

elsif datain_adc="00001000"

then

dataout_serial<="01000000"; -- pH 4.0

txd_data<=dataout_serial;

elsif datain_adc="00001001"

then

dataout_serial<="01000101"; -- pH 4.5

txd_data<=dataout_serial;

elsif datain_adc="00001010"

then

dataout_serial<="01010000"; -- pH 5.0

txd_data<=dataout_serial;

elsif datain_adc="00001011"

then

dataout_serial<="01010101"; -- pH 5.5

txd_data<=dataout_serial;

elsif datain_adc="00001100"

then

dataout_serial<="01100000"; -- pH 6.0

txd_data<=dataout_serial;

elsif datain_adc="00001101"

then

dataout_serial<="01100101"; -- pH 6.5

txd_data<=dataout_serial;

elsif datain_adc="00001110"

then

dataout_serial<="01110000"; -- pH 7.0

txd_data<=dataout_serial;

elsif datain_adc="00001111"

then

dataout_serial<="01110101"; -- pH 7.5

txd_data<=dataout_serial;

elsif datain_adc="00010000"

then

dataout_serial<="10000000"; -- pH 8.0

txd_data<=dataout_serial;

elsif datain_adc="00010001"

then

dataout_serial<="10000101"; -- pH 8.5

txd_data<=dataout_serial;

elsif datain_adc="00010010"

then

dataout_serial<="10010000"; -- pH 9.0

txd_data<=dataout_serial;

elsif datain_adc="00010011"

then

dataout_serial<="10010101"; -- pH 9.5

txd_data<=dataout_serial;

elsif datain_adc="00010100"

then

dataout_serial<="10100000"; -- pH 10.0

txd_data<=dataout_serial;

elsif datain_adc="00010101"

then

dataout_serial<="10100101"; -- pH 10.5

txd_data<=dataout_serial;

elsif datain_adc="00010110"

then

dataout_serial<="10110000"; -- pH 11.0

txd_data<=dataout_serial;

elsif datain_adc="00010111"

then

dataout_serial<="10110101"; -- pH 11.5

txd_data<=dataout_serial;

elsif datain_adc="00011000"

then

dataout_serial<="11000000"; -- pH 12.0

txd_data<=dataout_serial;

elsif datain_adc="00011001"

then

dataout_serial<="11000101"; -- pH 12.5

txd_data<=dataout_serial;

elsif datain_adc="00011010"

then

dataout_serial<="11010000"; -- pH 13.0

txd_data<=dataout_serial;

elsif datain_adc="00011011"

then

dataout_serial<="11010101"; -- pH 13.5

txd_data<=dataout_serial;

elsif datain_adc="00011100"

then

dataout_serial_1<="11100000"; -- pH 14.0

txd_data<=dataout_serial;

end if;

end process;

end BEHAVIOR;

------------------------------------------------------------------

the program is when compilation of main program this error comes out

"Error (10482): VHDL error at up3_board1.vhd(34): object "txd_data" is used but not declared"..i already add the component program file UARTTransmitter.vhdl to this main program

any idea???

altera_forum · Answer

--- Quote Start ---

this is the main program

library ieee;

use ieee.std_logic_1164.all;

use ieee.std_logic_arith.all;

entity up3_board1 is

port( datain_adc: IN STD_LOGIC_VECTOR(7 downto 0);--input from ADC

clock: IN STD_LOGIC; -- Clock Input from Altera Board

dataout_serial: BUFFER STD_LOGIC_VECTOR(7 downto 0));--8 bit data for trasmitting

end up3_board1;

architecture BEHAVIOR of up3_board1 is

------------------ COMPONENT UARTTransmitter------------------------------------------------

component UARTTransmitter

port ( txd_data: IN STD_LOGIC_VECTOR( 7 DOWNTO 0));

end component;

------------component UARTTrasmitter------------------------------------------------------

BEGIN

PROCESS(clock,datain_adc)

BEGIN

if datain_adc="00000000"--data from ADC,not correct yet..

then

dataout_serial<="00000000"; -- pH 0.0,fake data

txd_data<=dataout_serial;

elsif datain_adc="00000001"

then

dataout_serial<="00000101";-- pH 0.5

txd_data<=dataout_serial;

elsif datain_adc="00000010"

then

dataout_serial<="00010000"; -- pH 1.0

txd_data<=dataout_serial;

elsif datain_adc="00000011"

then

dataout_serial<="00010101"; -- pH 1.5

txd_data<=dataout_serial;

elsif datain_adc="00000100"

then

dataout_serial<="00100000";-- pH 2.0

txd_data<=dataout_serial;

elsif datain_adc="00000101"

then

dataout_serial<="00100101"; -- pH 2.5

txd_data<=dataout_serial;

elsif datain_adc="00000110"

then

dataout_serial<="00110000"; -- pH 3.0

txd_data<=dataout_serial;

elsif datain_adc="00000111"

then

dataout_serial<="00110101"; -- pH 3.5

txd_data<=dataout_serial;

elsif datain_adc="00001000"

then

dataout_serial<="01000000"; -- pH 4.0

txd_data<=dataout_serial;

elsif datain_adc="00001001"

then

dataout_serial<="01000101"; -- pH 4.5

txd_data<=dataout_serial;

elsif datain_adc="00001010"

then

dataout_serial<="01010000"; -- pH 5.0

txd_data<=dataout_serial;

elsif datain_adc="00001011"

then

dataout_serial<="01010101"; -- pH 5.5

txd_data<=dataout_serial;

elsif datain_adc="00001100"

then

dataout_serial<="01100000"; -- pH 6.0

txd_data<=dataout_serial;

elsif datain_adc="00001101"

then

dataout_serial<="01100101"; -- pH 6.5

txd_data<=dataout_serial;

elsif datain_adc="00001110"

then

dataout_serial<="01110000"; -- pH 7.0

txd_data<=dataout_serial;

elsif datain_adc="00001111"

then

dataout_serial<="01110101"; -- pH 7.5

txd_data<=dataout_serial;

elsif datain_adc="00010000"

then

dataout_serial<="10000000"; -- pH 8.0

txd_data<=dataout_serial;

elsif datain_adc="00010001"

then

dataout_serial<="10000101"; -- pH 8.5

txd_data<=dataout_serial;

elsif datain_adc="00010010"

then

dataout_serial<="10010000"; -- pH 9.0

txd_data<=dataout_serial;

elsif datain_adc="00010011"

then

dataout_serial<="10010101"; -- pH 9.5

txd_data<=dataout_serial;

elsif datain_adc="00010100"

then

dataout_serial<="10100000"; -- pH 10.0

txd_data<=dataout_serial;

elsif datain_adc="00010101"

then

dataout_serial<="10100101"; -- pH 10.5

txd_data<=dataout_serial;

elsif datain_adc="00010110"

then

dataout_serial<="10110000"; -- pH 11.0

txd_data<=dataout_serial;

elsif datain_adc="00010111"

then

dataout_serial<="10110101"; -- pH 11.5

txd_data<=dataout_serial;

elsif datain_adc="00011000"

then

dataout_serial<="11000000"; -- pH 12.0

txd_data<=dataout_serial;

elsif datain_adc="00011001"

then

dataout_serial<="11000101"; -- pH 12.5

txd_data<=dataout_serial;

elsif datain_adc="00011010"

then

dataout_serial<="11010000"; -- pH 13.0

txd_data<=dataout_serial;

elsif datain_adc="00011011"

then

dataout_serial<="11010101"; -- pH 13.5

txd_data<=dataout_serial;

elsif datain_adc="00011100"

then

dataout_serial_1<="11100000"; -- pH 14.0

txd_data<=dataout_serial;

end if;

end process;

end BEHAVIOR;

------------------------------------------------------------------

the program is when compilation of main program this error comes out

"Error (10482): VHDL error at up3_board1.vhd(34): object "txd_data" is used but not declared"..i already add the component program file UARTTransmitter.vhdl to this main program

any idea???

--- Quote End ---

Hi,

I'm not a VHDL expert, but I think you have to define a signal called txd_data in your architecture.

Kind regards

GPK

altera_forum · Answer

Are you aware you have created a completly asynchronous design? there are no registers in this code.  Also, you have not instantiated a UART Transmitter.

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