Improve Delay test report (#21047)
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@ -106,12 +106,14 @@
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#if ENABLED(MARLIN_DEV_MODE)
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#if ENABLED(MARLIN_DEV_MODE)
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void dump_delay_accuracy_check()
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void dump_delay_accuracy_check() {
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{
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auto report_call_time = [](PGM_P const name, PGM_P const unit, const uint32_t cycles, const uint32_t total, const bool do_flush=true) {
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auto report_call_time = [](PGM_P const name, const uint32_t cycles, const uint32_t total, const bool do_flush=true) {
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SERIAL_ECHOPGM("Calling ");
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SERIAL_ECHOPGM("Calling ");
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serialprintPGM(name);
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serialprintPGM(name);
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SERIAL_ECHOLNPAIR(" for ", cycles, "cycles took: ", total, "cycles");
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SERIAL_ECHOLNPAIR(" for ", cycles);
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serialprintPGM(unit);
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SERIAL_ECHOLNPAIR(" took: ", total);
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serialprintPGM(unit);
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if (do_flush) SERIAL_FLUSH();
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if (do_flush) SERIAL_FLUSH();
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};
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};
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@ -123,41 +125,41 @@
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constexpr uint32_t testValues[] = { 1, 5, 10, 20, 50, 100, 150, 200, 350, 500, 750, 1000 };
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constexpr uint32_t testValues[] = { 1, 5, 10, 20, 50, 100, 150, 200, 350, 500, 750, 1000 };
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for (auto i : testValues) {
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for (auto i : testValues) {
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s = micros(); DELAY_US(i); e = micros();
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s = micros(); DELAY_US(i); e = micros();
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report_call_time(PSTR("delay"), i, e - s);
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report_call_time(PSTR("delay"), PSTR("us"), i, e - s);
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}
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}
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if (HW_REG(_DWT_CTRL)) {
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if (HW_REG(_DWT_CTRL)) {
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for (auto i : testValues) {
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for (auto i : testValues) {
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s = HW_REG(_DWT_CYCCNT); DELAY_CYCLES(i); e = HW_REG(_DWT_CYCCNT);
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s = HW_REG(_DWT_CYCCNT); DELAY_CYCLES(i); e = HW_REG(_DWT_CYCCNT);
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report_call_time(PSTR("delay"), i, e - s);
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report_call_time(PSTR("runtime delay"), PSTR("cycles"), i, e - s);
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}
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}
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// Measure the delay to call a real function compared to a function pointer
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// Measure the delay to call a real function compared to a function pointer
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s = HW_REG(_DWT_CYCCNT); delay_dwt(1); e = HW_REG(_DWT_CYCCNT);
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s = HW_REG(_DWT_CYCCNT); delay_dwt(1); e = HW_REG(_DWT_CYCCNT);
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report_call_time(PSTR("delay_dwt"), 1, e - s);
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report_call_time(PSTR("delay_dwt"), PSTR("cycles"), 1, e - s);
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static PGMSTR(dcd, "DELAY_CYCLES directly ");
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static PGMSTR(dcd, "DELAY_CYCLES directly ");
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s = HW_REG(_DWT_CYCCNT); DELAY_CYCLES( 1); e = HW_REG(_DWT_CYCCNT);
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s = HW_REG(_DWT_CYCCNT); DELAY_CYCLES( 1); e = HW_REG(_DWT_CYCCNT);
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report_call_time(dcd, 1, e - s, false);
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report_call_time(dcd, PSTR("cycles"), 1, e - s, false);
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s = HW_REG(_DWT_CYCCNT); DELAY_CYCLES( 5); e = HW_REG(_DWT_CYCCNT);
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s = HW_REG(_DWT_CYCCNT); DELAY_CYCLES( 5); e = HW_REG(_DWT_CYCCNT);
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report_call_time(dcd, 5, e - s, false);
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report_call_time(dcd, PSTR("cycles"), 5, e - s, false);
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s = HW_REG(_DWT_CYCCNT); DELAY_CYCLES(10); e = HW_REG(_DWT_CYCCNT);
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s = HW_REG(_DWT_CYCCNT); DELAY_CYCLES(10); e = HW_REG(_DWT_CYCCNT);
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report_call_time(dcd, 10, e - s, false);
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report_call_time(dcd, PSTR("cycles"), 10, e - s, false);
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s = HW_REG(_DWT_CYCCNT); DELAY_CYCLES(20); e = HW_REG(_DWT_CYCCNT);
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s = HW_REG(_DWT_CYCCNT); DELAY_CYCLES(20); e = HW_REG(_DWT_CYCCNT);
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report_call_time(dcd, 20, e - s, false);
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report_call_time(dcd, PSTR("cycles"), 20, e - s, false);
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s = HW_REG(_DWT_CYCCNT); DELAY_CYCLES(50); e = HW_REG(_DWT_CYCCNT);
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s = HW_REG(_DWT_CYCCNT); DELAY_CYCLES(50); e = HW_REG(_DWT_CYCCNT);
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report_call_time(dcd, 50, e - s, false);
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report_call_time(dcd, PSTR("cycles"), 50, e - s, false);
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s = HW_REG(_DWT_CYCCNT); DELAY_CYCLES(100); e = HW_REG(_DWT_CYCCNT);
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s = HW_REG(_DWT_CYCCNT); DELAY_CYCLES(100); e = HW_REG(_DWT_CYCCNT);
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report_call_time(dcd, 100, e - s, false);
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report_call_time(dcd, PSTR("cycles"), 100, e - s, false);
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s = HW_REG(_DWT_CYCCNT); DELAY_CYCLES(200); e = HW_REG(_DWT_CYCCNT);
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s = HW_REG(_DWT_CYCCNT); DELAY_CYCLES(200); e = HW_REG(_DWT_CYCCNT);
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report_call_time(dcd, 200, e - s, false);
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report_call_time(dcd, PSTR("cycles"), 200, e - s, false);
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}
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}
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}
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}
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#endif // MARLIN_DEV_MODE
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#endif // MARLIN_DEV_MODE
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