112 lines
2.8 KiB
C++
112 lines
2.8 KiB
C++
#include "catch2/catch.hpp"
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#include "speed_table.h"
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#include <stdio.h>
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using Catch::Matchers::Equals;
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using namespace modules::speed_table;
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// The following reference values are calculated for 2MHz timer
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static_assert(F_CPU / config::stepTimerFrequencyDivider == 2000000,
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"speed tables not compatible for the requested frequency");
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static const st_timer_t reference[][3] = {
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{ 1, 62500, 1 },
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{ 501, 3992, 1 },
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{ 1001, 1998, 1 },
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{ 1501, 1332, 1 },
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{ 2001, 1000, 1 },
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{ 2501, 801, 1 },
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{ 3001, 668, 1 },
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{ 3501, 572, 1 },
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{ 4001, 500, 1 },
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{ 4501, 444, 1 },
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{ 5001, 400, 1 },
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{ 5501, 364, 1 },
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{ 6001, 333, 1 },
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{ 6501, 307, 1 },
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{ 7001, 285, 1 },
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{ 7501, 266, 1 },
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{ 8001, 250, 1 },
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{ 8501, 234, 1 },
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{ 9001, 222, 1 },
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{ 9501, 211, 1 },
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{ 10001, 400, 2 },
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{ 10501, 381, 2 },
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{ 11001, 364, 2 },
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{ 11501, 348, 2 },
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{ 12001, 333, 2 },
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{ 12501, 320, 2 },
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{ 13001, 308, 2 },
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{ 13501, 297, 2 },
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{ 14001, 286, 2 },
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{ 14501, 276, 2 },
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{ 15001, 267, 2 },
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{ 15501, 258, 2 },
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{ 16001, 250, 2 },
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{ 16501, 243, 2 },
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{ 17001, 235, 2 },
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{ 17501, 228, 2 },
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{ 18001, 222, 2 },
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{ 18501, 216, 2 },
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{ 19001, 211, 2 },
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{ 19501, 205, 2 },
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{ 20001, 400, 4 },
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{ 20501, 391, 4 },
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{ 21001, 381, 4 },
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{ 21501, 371, 4 },
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{ 22001, 364, 4 },
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{ 22501, 356, 4 },
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{ 23001, 348, 4 },
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{ 23501, 340, 4 },
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{ 24001, 333, 4 },
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{ 24501, 326, 4 },
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{ 25001, 320, 4 },
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{ 25501, 312, 4 },
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{ 26001, 308, 4 },
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{ 26501, 301, 4 },
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{ 27001, 297, 4 },
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{ 27501, 290, 4 },
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{ 28001, 286, 4 },
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{ 28501, 280, 4 },
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{ 29001, 276, 4 },
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{ 29501, 270, 4 },
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{ 30001, 267, 4 },
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{ 30501, 262, 4 },
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{ 31001, 258, 4 },
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{ 31501, 254, 4 },
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{ 32001, 250, 4 },
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{ 32501, 247, 4 },
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{ 33001, 243, 4 },
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{ 33501, 239, 4 },
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{ 34001, 235, 4 },
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{ 34501, 231, 4 },
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{ 35001, 228, 4 },
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{ 35501, 225, 4 },
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{ 36001, 222, 4 },
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{ 36501, 219, 4 },
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{ 37001, 216, 4 },
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{ 37501, 214, 4 },
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{ 38001, 211, 4 },
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{ 38501, 208, 4 },
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{ 39001, 205, 4 },
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{ 39501, 201, 4 },
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};
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TEST_CASE("speed_table::calc_timer", "[speed_table]") {
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// Check the result values of calc_timer against an AVR reference table
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for (unsigned i = 0; i != sizeof(reference) / sizeof(*reference); ++i) {
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st_timer_t step_rate = reference[i][0];
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uint8_t loops;
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st_timer_t timer = calc_timer(step_rate, loops);
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// allow +/-1 of difference for rounding between the C and ASM versions
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REQUIRE(abs((int)timer - (int)reference[i][1]) <= 1);
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// loops should be exact
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REQUIRE(loops == reference[i][2]);
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// show the table
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printf("%u %u %u\n", step_rate, timer, loops);
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}
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}
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