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azonenbergazonenberg
committedDec 31, 2016
Added Luts HiL test
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‎tests/greenpak4/slg46620v/CMakeLists.txt

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@@ -25,6 +25,7 @@ add_greenpak4_bitstream(SocketTestLoopback_STQFN20 SLG46620V)
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add_greenpak4_hiltest(Bargraph SLG46620V)
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add_greenpak4_hiltest(Latch SLG46620V)
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add_greenpak4_hiltest(Luts SLG46620V)
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add_greenpak4_hiltest(PGA SLG46620V)
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########################################################################################################################

‎tests/greenpak4/slg46620v/Luts.cpp

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/***********************************************************************************************************************
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* Copyright (C) 2016 Andrew Zonenberg and contributors *
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* *
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* This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General *
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* Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) *
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* any later version. *
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* *
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied *
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for *
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* more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public License along with this program; if not, you may *
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* find one here: *
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* https://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt *
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* or you may search the http://www.gnu.org website for the version 2.1 license, or you may write to the Free Software *
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA *
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**********************************************************************************************************************/
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#include <log.h>
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#include <gpdevboard.h>
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#include <unistd.h>
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#include <math.h>
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using namespace std;
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bool RunTest(hdevice hdev);
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int main(int argc, char* argv[])
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{
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g_log_sinks.emplace(g_log_sinks.begin(), new STDLogSink(Severity::VERBOSE));
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//expect one arg: the bitstream
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if(argc != 2)
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{
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LogNotice("Usage: [testcase] bitstream.txt\n");
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return 1;
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}
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//Set up the test
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hdevice hdev = MultiBoardTestSetup(argv[1], 25000, 1.8, SilegoPart::SLG46620V);
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if(!hdev)
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{
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LogError("Failed to open board\n");
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return 1;
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}
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//Run the actual test case
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LogNotice("\n");
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LogNotice("Running application test case\n");
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if(!RunTest(hdev))
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{
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SetStatusLED(hdev, 0);
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Reset(hdev);
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return 1;
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}
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//Turn off the LED before declaring success
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LogVerbose("\n");
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LogVerbose("Test complete, resetting board\n");
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SetStatusLED(hdev, 0);
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ResetAllSiggens(hdev);
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Reset(hdev);
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USBCleanup(hdev);
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return 0;
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}
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/**
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@brief The actual application-layer test
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*/
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bool RunTest(hdevice hdev)
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{
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LogIndenter li;
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//Set up the I/O config we need for this test
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IOConfig ioConfig;
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for(size_t i = 2; i <= 20; i++)
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ioConfig.driverConfigs[i] = TP_RESET;
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if(!SetIOConfig(hdev, ioConfig))
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return false;
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//Loop over all values for the 4 inputs and see what we get
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bool ok = true;
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for(int i=0; i<16; i++)
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{
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bool a = (i & 1) ? true : false;
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bool b = (i & 2) ? true : false;
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bool c = (i & 4) ? true : false;
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bool d = (i & 8) ? true : false;
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bool nand1_expected = !a;
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bool nand2_expected = !(a & b);
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bool nand3_expected = !(a & b & c);
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bool nand4_expected = !(a & b & c & d);
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bool expected[8] =
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{
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nand1_expected, nand2_expected, nand3_expected, nand4_expected,
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nand1_expected, nand2_expected, nand3_expected, nand4_expected
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};
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//Drive the inputs
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LogVerbose("Testing %d %d %d %d\n", a, b, c, d);
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LogVerbose("Expected: %d %d %d %d\n", nand1_expected, nand2_expected, nand3_expected, nand4_expected);
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ioConfig.driverConfigs[2] = a ? TP_VDD : TP_GND;
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ioConfig.driverConfigs[3] = b ? TP_VDD : TP_GND;
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ioConfig.driverConfigs[4] = c ? TP_VDD : TP_GND;
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ioConfig.driverConfigs[5] = d ? TP_VDD : TP_GND;
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if(!SetIOConfig(hdev, ioConfig))
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return false;
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//Read the outputs
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int pin_nums[8] = {6, 7, 8, 9, 12, 13, 14, 15};
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bool results[8];
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for(int i=0; i<8; i++)
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{
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double value;
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if(!SingleReadADC(hdev, pin_nums[i], value))
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return false;
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results[i] = (value > 0.5);
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}
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//Sanity check the results
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for(int j=0; j<8; j++)
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{
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if(expected[j] != results[j])
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{
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LogError("input (%d %d %d %d), output pin %d, got %d instead of %d\n",
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a, b, c, d,
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pin_nums[j],
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results[j],
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expected[j]);
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ok = false;
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}
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}
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}
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return ok;
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}

‎tests/greenpak4/slg46620v/Luts.v

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/***********************************************************************************************************************
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* Copyright (C) 2016 Andrew Zonenberg and contributors *
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* *
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* This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General *
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* Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) *
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* any later version. *
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* *
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied *
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for *
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* more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public License along with this program; if not, you may *
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* find one here: *
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* https://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt *
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* or you may search the http://www.gnu.org website for the version 2.1 license, or you may write to the Free Software *
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA *
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**********************************************************************************************************************/
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`default_nettype none
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/**
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@brief HiL test case for GP_INV, GP_LUTx
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OUTPUTS:
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Bitwise NAND of inputs (1 to 4 bits wide)
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*/
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module Luts(din, dout_instantiated, dout_inferred);
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// I/O declarations
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(* LOC = "P2 P3 P4 P5" *)
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input wire[3:0] din;
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(* LOC = "P6 P7 P8 P9" *)
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output wire[3:0] dout_instantiated;
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(* LOC = "P12 P13 P14 P15" *)
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output wire[3:0] dout_inferred;
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// LUTs created from direct instantiation
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GP_INV inv_inst (
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.IN(din[0]), .OUT(dout_instantiated[0]));
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GP_2LUT #(.INIT(4'hB)) lut2_inst (
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.IN0(din[0]), .IN1(din[1]), .OUT(dout_instantiated[1]));
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GP_3LUT #(.INIT(8'h7F)) lut3_inst (
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.IN0(din[0]), .IN1(din[1]), .IN2(din[2]), .OUT(dout_instantiated[2]));
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GP_4LUT #(.INIT(16'h7FFF)) lut4_inst (
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.IN0(din[0]), .IN1(din[1]), .IN2(din[2]), .IN3(din[3]), .OUT(dout_instantiated[3]));
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// LUTs created from inference
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assign dout_inferred[0] = ~din[0];
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assign dout_inferred[1] = ~(din[0] & din[1]);
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assign dout_inferred[2] = ~(din[0] & din[1] & din[2]);
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assign dout_inferred[3] = ~(din[0] & din[1] & din[2] & din[3]);
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endmodule

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