tb Architecture Reference

Architecture tb of gpio_device_tb entity. More...

Functions
string	to_string ( vector: in std_logic_vector )
	Function to create string from std_logic_vector.

Processes
pr_clock	( )
	Clock generator process.
pr_stimulus	( )
	Stimulus process to drive PWM unit under test.

Use Clauses
rst
	Reset input to gpio_device.
gpio_in
	GPIO inputs.
gpio_out
	Expected GPIO outputs.

Constants
c_clk_period	time := 10 ns
	Test bench clock period.
c_stimulus	t_stimulus_array := ( ( name = > " Reset " , rst = > ' 1 ' , data_wr = > X " 00000000 " , data_rd = > X " 00000000 " , gpio_in = > X " 00000000 " , gpio_out = > X " 00000000 " ) , ( name = > " Transfer " , rst = > ' 0 ' , data_wr = > X " DEADBEEF " , data_rd = > X " AA550011 " , gpio_in = > X " AA550011 " , gpio_out = > X " DEADBEEF " ) )
	Test stimulus.

Types
t_stimulus_array	array ( natural range <> ) of t_stimulus
	Stimulus array type.

Signals
clk	std_logic
	Clock input to uut.
dat_wr_done	std_logic
	Data write done input to uut.
dat_wr_reg	std_logic_vector ( 31 DOWNTO 0 )
	Data write register input to uut.
dat_rd_reg	std_logic_vector ( 31 DOWNTO 0 )
	Data read register output from uut.

Records
t_stimulus
	Stimulus record type.
name	string ( 1 TO 30 )
	Stimulus name.
data_wr	std_logic_vector ( 31 DOWNTO 0 )
	Write data to gpio_device.
data_rd	std_logic_vector ( 31 DOWNTO 0 )
	Expected read data from gpio_device.

Instantiations
i_uut	gpio_device <Entity gpio_device>
	Instantiate GPIO device as uut.

Detailed Description

Architecture tb of gpio_device_tb entity.

Definition at line 17 of file gpio_device_tb.vhd.

Member Function Documentation

pr_clock()

pr_clock

(

)

Clock generator process.

This generates the clk signal and the adv signal

Definition at line 99 of file gpio_device_tb.vhd.

    pr_clock : PROCESS IS
    BEGIN
    
        clk <= '0';
        WAIT FOR c_clk_period / 2;

        clk <= '1';
        WAIT FOR c_clk_period / 2;
        
    END PROCESS pr_clock;

Member Data Documentation

gpio_out

gpio_out

Package

Expected GPIO outputs.

GPIO outputs.

Definition at line 29 of file gpio_device_tb.vhd.

rst

rst

Package

Reset input to gpio_device.

Reset input to uut.

Definition at line 25 of file gpio_device_tb.vhd.

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The documentation for this class was generated from the following file:

• fpga/common/devices/sim/gpio_device_tb.vhd