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