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-- #################################################################################################
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-- #################################################################################################
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-- # << NEORV32 - Default Testbench >> #
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-- # << NEORV32 - Default Processor Testbench >> #
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-- # ********************************************************************************************* #
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-- # ********************************************************************************************* #
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-- # The processor is configured to use a maximum of functional units (for testing purpose). #
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-- # The processor is configured to use a maximum of functional units (for testing purpose). #
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-- # Use the "User Configuration" section to configure the testbench according to your needs. #
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-- # Use the "User Configuration" section to configure the testbench according to your needs. #
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-- # See NEORV32 data sheet (docs/NEORV32.pdf) for more information. #
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-- # See NEORV32 data sheet for more information. #
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-- # ********************************************************************************************* #
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-- # ********************************************************************************************* #
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-- # BSD 3-Clause License #
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-- # BSD 3-Clause License #
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-- # #
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-- # #
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-- # Copyright (c) 2021, Stephan Nolting. All rights reserved. #
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-- # Copyright (c) 2021, Stephan Nolting. All rights reserved. #
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-- # #
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-- # #
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-- General --
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-- General --
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CLOCK_FREQUENCY => f_clock_c, -- clock frequency of clk_i in Hz
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CLOCK_FREQUENCY => f_clock_c, -- clock frequency of clk_i in Hz
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BOOTLOADER_EN => false, -- implement processor-internal bootloader?
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BOOTLOADER_EN => false, -- implement processor-internal bootloader?
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USER_CODE => x"12345678", -- custom user code
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USER_CODE => x"12345678", -- custom user code
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HW_THREAD_ID => 0, -- hardware thread id (hartid) (32-bit)
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HW_THREAD_ID => 0, -- hardware thread id (hartid) (32-bit)
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-- On-Chip Debugger (OCD) --
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ON_CHIP_DEBUGGER_EN => true, -- implement on-chip debugger
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-- RISC-V CPU Extensions --
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-- RISC-V CPU Extensions --
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CPU_EXTENSION_RISCV_A => true, -- implement atomic extension?
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CPU_EXTENSION_RISCV_A => true, -- implement atomic extension?
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CPU_EXTENSION_RISCV_B => true, -- implement bit manipulation extensions?
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CPU_EXTENSION_RISCV_B => true, -- implement bit manipulation extensions?
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CPU_EXTENSION_RISCV_C => true, -- implement compressed extension?
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CPU_EXTENSION_RISCV_C => true, -- implement compressed extension?
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CPU_EXTENSION_RISCV_E => false, -- implement embedded RF extension?
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CPU_EXTENSION_RISCV_E => false, -- implement embedded RF extension?
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)
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)
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port map (
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port map (
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-- Global control --
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-- Global control --
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clk_i => clk_gen, -- global clock, rising edge
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clk_i => clk_gen, -- global clock, rising edge
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rstn_i => rst_gen, -- global reset, low-active, async
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rstn_i => rst_gen, -- global reset, low-active, async
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-- JTAG on-chip debugger interface (available if ON_CHIP_DEBUGGER_EN = true) --
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jtag_trst_i => '1', -- low-active TAP reset (optional)
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jtag_tck_i => '0', -- serial clock
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jtag_tdi_i => '0', -- serial data input
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jtag_tdo_o => open, -- serial data output
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jtag_tms_i => '0', -- mode select
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-- Wishbone bus interface (available if MEM_EXT_EN = true) --
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-- Wishbone bus interface (available if MEM_EXT_EN = true) --
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wb_tag_o => wb_cpu.tag, -- request tag
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wb_tag_o => wb_cpu.tag, -- request tag
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wb_adr_o => wb_cpu.addr, -- address
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wb_adr_o => wb_cpu.addr, -- address
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wb_dat_i => wb_cpu.rdata, -- read data
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wb_dat_i => wb_cpu.rdata, -- read data
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wb_dat_o => wb_cpu.wdata, -- write data
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wb_dat_o => wb_cpu.wdata, -- write data
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cfs_out_o => open, -- custom CFS outputs
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cfs_out_o => open, -- custom CFS outputs
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-- NCO output (available if IO_NCO_EN = true) --
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-- NCO output (available if IO_NCO_EN = true) --
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nco_o => open, -- numerically-controlled oscillator channels
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nco_o => open, -- numerically-controlled oscillator channels
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-- NeoPixel-compatible smart LED interface (available if IO_NEOLED_EN = true) --
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-- NeoPixel-compatible smart LED interface (available if IO_NEOLED_EN = true) --
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neoled_o => open, -- async serial data line
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neoled_o => open, -- async serial data line
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-- system time input from external MTIME (available if IO_MTIME_EN = false) --
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-- System time --
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mtime_i => (others => '0'), -- current system time
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mtime_i => (others => '0'), -- current system time from ext. MTIME (if IO_MTIME_EN = false)
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mtime_o => open, -- current system time from int. MTIME (if IO_MTIME_EN = true)
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-- Interrupts --
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-- Interrupts --
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nm_irq_i => nmi_ring, -- non-maskable interrupt
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nm_irq_i => nmi_ring, -- non-maskable interrupt
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soc_firq_i => soc_firq_ring, -- fast interrupt channels
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soc_firq_i => soc_firq_ring, -- fast interrupt channels
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mtime_irq_i => '0', -- machine software interrupt, available if IO_MTIME_EN = false
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mtime_irq_i => '0', -- machine software interrupt, available if IO_MTIME_EN = false
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msw_irq_i => msi_ring, -- machine software interrupt
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msw_irq_i => msi_ring, -- machine software interrupt
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