| //////////////////////////////////////////////////////////////////////////// |
| // SPDX-FileCopyrightText: 2021 , Dinesh Annayya |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // SPDX-License-Identifier: Apache-2.0 |
| // SPDX-FileContributor: Modified by Dinesh Annayya <dinesha@opencores.org> |
| ////////////////////////////////////////////////////////////////////// |
| //// //// |
| //// Standalone User validation Test bench //// |
| //// //// |
| //// This file is part of the riscdunio cores project //// |
| //// https://github.com/dineshannayya/riscdunio.git //// |
| //// //// |
| //// Description //// |
| //// This is a standalone test bench to validate the //// |
| //// Digital core. //// |
| //// This test bench to valid Arduino example: //// |
| //// <example><SPi><DigitalPortControl> //// |
| //// //// |
| //// To Do: //// |
| //// nothing //// |
| //// //// |
| //// Author(s): //// |
| //// - Dinesh Annayya, dinesh.annayya@gmail.com //// |
| //// //// |
| //// Revision : //// |
| //// 0.1 - 29th July 2022, Dinesh A //// |
| //// //// |
| ////////////////////////////////////////////////////////////////////// |
| //// //// |
| //// Copyright (C) 2000 Authors and OPENCORES.ORG //// |
| //// //// |
| //// This source file may be used and distributed without //// |
| //// restriction provided that this copyright statement is not //// |
| //// removed from the file and that any derivative work contains //// |
| //// the original copyright notice and the associated disclaimer. //// |
| //// //// |
| //// This source file is free software; you can redistribute it //// |
| //// and/or modify it under the terms of the GNU Lesser General //// |
| //// Public License as published by the Free Software Foundation; //// |
| //// either version 2.1 of the License, or (at your option) any //// |
| //// later version. //// |
| //// //// |
| //// This source is distributed in the hope that it will be //// |
| //// useful, but WITHOUT ANY WARRANTY; without even the implied //// |
| //// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR //// |
| //// PURPOSE. See the GNU Lesser General Public License for more //// |
| //// details. //// |
| //// //// |
| //// You should have received a copy of the GNU Lesser General //// |
| //// Public License along with this source; if not, download it //// |
| //// from http://www.opencores.org/lgpl.shtml //// |
| //// //// |
| ////////////////////////////////////////////////////////////////////// |
| |
| `default_nettype wire |
| |
| `timescale 1 ns / 1 ns |
| |
| `include "sram_macros/sky130_sram_2kbyte_1rw1r_32x512_8.v" |
| `include "is62wvs1288.v" |
| `include "bfm_ad5205.sv" |
| |
| `define TB_HEX "arduino_digital_port_control.hex" |
| `define TB_TOP arduino_digital_port_control_tb |
| module arduino_digital_port_control_tb; |
| |
| parameter real CLK1_PERIOD = 20; // 50Mhz |
| parameter real CLK2_PERIOD = 2.5; |
| parameter real IPLL_PERIOD = 5.008; |
| parameter real XTAL_PERIOD = 6; |
| |
| `include "user_tasks.sv" |
| |
| reg flag ; |
| |
| parameter P_FSM_C = 4'b0000; // Command Phase Only |
| parameter P_FSM_CW = 4'b0001; // Command + Write DATA Phase Only |
| parameter P_FSM_CA = 4'b0010; // Command -> Address Phase Only |
| |
| parameter P_FSM_CAR = 4'b0011; // Command -> Address -> Read Data |
| parameter P_FSM_CADR = 4'b0100; // Command -> Address -> Dummy -> Read Data |
| parameter P_FSM_CAMR = 4'b0101; // Command -> Address -> Mode -> Read Data |
| parameter P_FSM_CAMDR = 4'b0110; // Command -> Address -> Mode -> Dummy -> Read Data |
| |
| parameter P_FSM_CAW = 4'b0111; // Command -> Address ->Write Data |
| parameter P_FSM_CADW = 4'b1000; // Command -> Address -> DUMMY + Write Data |
| parameter P_FSM_CAMW = 4'b1001; // Command -> Address -> MODE + Write Data |
| |
| parameter P_FSM_CDR = 4'b1010; // COMMAND -> DUMMY -> READ |
| parameter P_FSM_CDW = 4'b1011; // COMMAND -> DUMMY -> WRITE |
| parameter P_FSM_CR = 4'b1100; // COMMAND -> READ |
| |
| parameter P_MODE_SWITCH_IDLE = 2'b00; |
| parameter P_MODE_SWITCH_AT_ADDR = 2'b01; |
| parameter P_MODE_SWITCH_AT_DATA = 2'b10; |
| |
| parameter P_SINGLE = 2'b00; |
| parameter P_DOUBLE = 2'b01; |
| parameter P_QUAD = 2'b10; |
| parameter P_QDDR = 2'b11; |
| |
| |
| integer channel,level; |
| |
| integer i,j; |
| |
| |
| |
| |
| initial begin |
| flag = 0; |
| end |
| |
| `ifdef WFDUMP |
| initial begin |
| $dumpfile("simx.vcd"); |
| $dumpvars(3, `TB_TOP); |
| //$dumpvars(0, `TB_TOP.u_top.u_riscv_top.i_core_top_0); |
| //$dumpvars(0, `TB_TOP.u_top.u_riscv_top.u_connect); |
| //$dumpvars(0, `TB_TOP.u_top.u_riscv_top.u_intf); |
| $dumpvars(0, `TB_TOP.u_top.u_pinmux); |
| $dumpvars(0, `TB_TOP.u_top.u_uart_i2c_usb_spi); |
| end |
| `endif |
| |
| |
| |
| initial begin |
| $value$plusargs("risc_core_id=%d", d_risc_id); |
| |
| #200; // Wait for reset removal |
| repeat (10) @(posedge clock); |
| $display("Monitor: Standalone User Risc Boot Test Started"); |
| |
| init(); |
| wait_riscv_boot(); |
| |
| // Remove Wb Reset |
| //wb_user_core_write(`ADDR_SPACE_WBHOST+`WBHOST_GLBL_CFG,'h1); |
| |
| repeat (2) @(posedge clock); |
| #1; |
| |
| // Remove WB and SPI Reset and CORE under Reset |
| //wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_CFG0,'h01F); |
| |
| // QSPI SRAM:CS#2 Switch to QSPI Mode |
| //wb_user_core_write(`ADDR_SPACE_WBHOST+`WBHOST_BANK_SEL,'h1000); // Change the Bank Sel 1000 |
| //wb_user_core_write(`ADDR_SPACE_QSPI+`QSPIM_IMEM_CTRL1,{16'h0,1'b0,1'b0,4'b0000,P_MODE_SWITCH_IDLE,P_SINGLE,P_SINGLE,4'b0100}); |
| //wb_user_core_write(`ADDR_SPACE_QSPI+`QSPIM_IMEM_CTRL2,{8'h0,2'b00,2'b00,P_FSM_C,8'h00,8'h38}); |
| //wb_user_core_write(`ADDR_SPACE_QSPI+`QSPIM_IMEM_WDATA,32'h0); |
| |
| // Remove all the reset |
| if(d_risc_id == 0) begin |
| $display("STATUS: Working with Risc core 0"); |
| //wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_CFG0,'h11F); |
| end else if(d_risc_id == 1) begin |
| $display("STATUS: Working with Risc core 1"); |
| wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_CFG0,'h21F); |
| end else if(d_risc_id == 2) begin |
| $display("STATUS: Working with Risc core 2"); |
| wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_CFG0,'h41F); |
| end else if(d_risc_id == 3) begin |
| $display("STATUS: Working with Risc core 3"); |
| wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_CFG0,'h81F); |
| end |
| |
| repeat (100) @(posedge clock); // wait for Processor Get Ready |
| |
| |
| repeat (1000) @(posedge clock); // wait for Processor Get Ready |
| flag = 1; |
| |
| fork |
| begin |
| for (channel = 0; channel < 6; channel = channel+1) begin |
| // change the resistance on this channel from min to max: |
| for (level = 0; level < 64; level = level+1) begin |
| wait(u_ad5205.channel == channel && u_ad5205.position == level); |
| $display("Channel: %x and Position: %x",u_ad5205.channel,u_ad5205.position); |
| end |
| // change the resistance on this channel from min to max: |
| for (level = 0; level < 64; level = level+1) begin |
| wait((u_ad5205.channel == channel) && (u_ad5205.position == (64 -level))); |
| $display("Channel: %x and Position: %x",u_ad5205.channel,u_ad5205.position); |
| end |
| end |
| test_fail = 0; |
| end |
| begin |
| repeat (1000000) @(posedge clock); // wait for Processor Get Ready |
| test_fail = 1; |
| end |
| join_any |
| |
| #100 |
| |
| $display("###################################################"); |
| if(test_fail == 0) begin |
| `ifdef GL |
| $display("Monitor: %m (GL) Passed"); |
| `else |
| $display("Monitor: %m (RTL) Passed"); |
| `endif |
| end else begin |
| `ifdef GL |
| $display("Monitor: %m (GL) Failed"); |
| `else |
| $display("Monitor: %m (RTL) Failed"); |
| `endif |
| end |
| $display("###################################################"); |
| #100 |
| $finish; |
| end |
| |
| // SSPI Slave I/F |
| assign io_in[5] = 1'b1; // RESET |
| |
| //------------------------------------------------------------------------------------- |
| // Integrate the Serial SPI to ad5204/5206 (4-/6-Channel Digital Potentiometers) |
| // https://www.analog.com/media/en/technical-documentation/data-sheets/ad5204_5206.pdf |
| // ----------------------------------------------------------------------------------- |
| wire sspi_sck = (io_oeb[21] == 1'b0) ? io_out[21] : 1'b0; |
| wire sspi_sdi = (io_oeb[20] == 1'b0) ? io_out[20] : 1'b0; |
| wire sspi_ssn = (io_oeb[18] == 1'b0) ? io_out[18] : 1'b0; |
| |
| wire [2:0] p_channel; // potentiometer channel |
| wire [7:0] p_position; // potentiometer position |
| |
| bfm_ad5205 u_ad5205( |
| .sck (sspi_sck ), |
| .sdi (sspi_sdi ), |
| .ssn (sspi_ssn ), |
| |
| .channel (p_channel ), |
| .position (p_position ) |
| ); |
| |
| `ifndef GL // Drive Power for Hold Fix Buf |
| // All standard cell need power hook-up for functionality work |
| initial begin |
| |
| end |
| `endif |
| |
| //------------------------------------------------------ |
| // Integrate the Serial flash with qurd support to |
| // user core using the gpio pads |
| // ---------------------------------------------------- |
| |
| wire flash_clk = (io_oeb[28] == 1'b0) ? io_out[28]: 1'b0; |
| wire flash_csb = (io_oeb[29] == 1'b0) ? io_out[29]: 1'b0; |
| // Creating Pad Delay |
| wire #1 io_oeb_33 = io_oeb[33]; |
| wire #1 io_oeb_34 = io_oeb[34]; |
| wire #1 io_oeb_35 = io_oeb[35]; |
| wire #1 io_oeb_36 = io_oeb[36]; |
| tri #1 flash_io0 = (io_oeb_33== 1'b0) ? io_out[33] : 1'bz; |
| tri #1 flash_io1 = (io_oeb_34== 1'b0) ? io_out[34] : 1'bz; |
| tri #1 flash_io2 = (io_oeb_35== 1'b0) ? io_out[35] : 1'bz; |
| tri #1 flash_io3 = (io_oeb_36== 1'b0) ? io_out[36] : 1'bz; |
| |
| assign io_in[33] = (io_oeb[33] == 1'b1) ? flash_io0: 1'b0; |
| assign io_in[34] = (io_oeb[34] == 1'b1) ? flash_io1: 1'b0; |
| assign io_in[35] = (io_oeb[35] == 1'b1) ? flash_io2: 1'b0; |
| assign io_in[36] = (io_oeb[36] == 1'b1) ? flash_io3: 1'b0; |
| |
| // Quard flash |
| s25fl256s #(.mem_file_name(`TB_HEX), |
| .otp_file_name("none"), |
| .TimingModel("S25FL512SAGMFI010_F_30pF")) |
| u_spi_flash_256mb ( |
| // Data Inputs/Outputs |
| .SI (flash_io0), |
| .SO (flash_io1), |
| // Controls |
| .SCK (flash_clk), |
| .CSNeg (flash_csb), |
| .WPNeg (flash_io2), |
| .HOLDNeg (flash_io3), |
| .RSTNeg (!wb_rst_i) |
| |
| ); |
| |
| wire spiram_csb = (io_oeb[31] == 1'b0) ? io_out[31] : 1'b0; |
| |
| is62wvs1288 #(.mem_file_name("none")) |
| u_sram ( |
| // Data Inputs/Outputs |
| .io0 (flash_io0), |
| .io1 (flash_io1), |
| // Controls |
| .clk (flash_clk), |
| .csb (spiram_csb), |
| .io2 (flash_io2), |
| .io3 (flash_io3) |
| ); |
| |
| //------------------------------------- |
| |
| |
| |
| endmodule |
| `include "s25fl256s.sv" |
| `default_nettype wire |
