91 lines
2.0 KiB
C++
91 lines
2.0 KiB
C++
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#include <vector>
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#include "Vwaveform_sim.h"
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#include "../testbench.hpp"
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class WaveformTestbench : public TB<Vwaveform_sim> {
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private:
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void refresh_posedge();
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void spi_posedge();
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public:
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std::array<uint32_t, WORD_AMNT> ram_refresh_data;
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int cur_ind;
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void posedge() override;
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void refresh_data();
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WaveformTestbench(int _bailout = 0) : TB<Vwaveform_sim>(_bailout)
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, ram_refresh_data{}
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, cur_ind{0} {}
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};
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void WaveformTestbench::refresh_data() {
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for (size_t i = 0; i < WORD_AMNT; i++) {
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uint32_t val = mask_extend(rand(), 20);
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ram_refresh_data[i] = val;
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mod.backing_store[i*2] = val & 0xFFFF;
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mod.backing_store[i*2+1] = val >> 16;
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}
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mod.refresh_start = 1;
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mod.start_addr = 0x12340;
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}
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void WaveformTestbench::refresh_posedge() {
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if (mod.refresh_finished) {
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mod.refresh_start = 0;
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}
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}
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void WaveformTestbench::spi_posedge() {
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if (mod.finished) {
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mod.rdy = 0;
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// Check for proper DAC register.
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my_assert(mod.from_master >> 20 == 0x1, "%d", mod.from_master >> 20);
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uint32_t val = mask_extend(mod.from_master & 0xFFFFF, 20);
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my_assert(val == ram_refresh_data[cur_ind], "(%d) %X != %X",
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cur_ind, val, ram_refresh_data[cur_ind]);
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cur_ind++;
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if (cur_ind == WORD_AMNT)
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cur_ind = 0;
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} else if (!mod.finished && !mod.rdy) {
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mod.rdy = 1;
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}
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}
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void WaveformTestbench::posedge() {
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refresh_posedge();
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spi_posedge();
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}
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WaveformTestbench *tb;
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int main(int argc, char *argv[]) {
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int j = 0;
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Verilated::commandArgs(argc, argv);
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// Verilated::traceEverOn(true);
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Verilated::fatalOnError(false);
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tb = new WaveformTestbench();
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tb->mod.rdy = 1;
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tb->refresh_data();
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tb->mod.time_to_wait = 10;
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tb->mod.arm = 1;
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do {
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tb->run_clock();
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} while (!tb->mod.refresh_finished);
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tb->mod.halt_on_finish = 1;
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do {
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tb->run_clock();
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} while (!tb->mod.waveform_finished);
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tb->mod.halt_on_finish = 0;
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tb->run_clock();
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tb->mod.halt_on_finish = 1;
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do {
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tb->run_clock();
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} while (!tb->mod.waveform_finished);
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delete tb;
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return 0;
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}
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