52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
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#include "../util.hpp"
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#include "Vspi_switch.h"
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Vspi_switch *tb;
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static void set_and_check(unsigned int selected, unsigned int num, unsigned int expected) {
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tb->miso = 1;
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tb->mosi_ports = 1 << num;
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tb->sck_ports = 1 << num;
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tb->ss_L_ports = 1 << num;
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tb->eval();
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my_assert(tb->mosi == expected, "%u != %u", tb->mosi, expected);
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my_assert(tb->sck == expected, "%u != %u", tb->sck, expected);
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my_assert(tb->ss_L == expected, "%u != %u", tb->ss_L, expected);
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my_assert(tb->miso_ports == 1 << selected, "%u != %u", tb->miso_ports, 1 << selected);
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}
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int main(int argc, char **argv) {
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Verilated::commandArgs(argc, argv);
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Verilated::traceEverOn(true);
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tb = new Vspi_switch();
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printf("Default behavior.\n");
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tb->select = 0;
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set_and_check(0, 0, 1);
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set_and_check(0, 1, 0);
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set_and_check(0, 2, 0);
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printf("Selecting the first port.\n");
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tb->select = 1;
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set_and_check(0, 0, 1);
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set_and_check(0, 1, 0);
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set_and_check(0, 2, 0);
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printf("Selecting the second port.\n");
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tb->select = 1 << 1;
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set_and_check(1, 0, 0);
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set_and_check(1, 1, 1);
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set_and_check(1, 2, 0);
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printf("Selecting the third port.\n");
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tb->select = 1 << 2;
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set_and_check(2, 0, 0);
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set_and_check(2, 1, 0);
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set_and_check(2, 2, 1);
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tb->final();
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delete tb;
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return 0;
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}
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