3DPrinting/Prusa-Firmware
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Merge pull request #1896 from NotaRobotexe/power_panic

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documentation for power panic
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DRracer 2019-06-05 16:10:04 +02:00 committed by GitHub
commit 10247a28a3
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1 changed files with 12 additions and 4 deletions
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16
Firmware/Marlin_main.cpp
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@ -8702,7 +8702,6 @@ extern uint32_t sdpos_atomic;
void uvlo_()
{
printf_P(_N("******* UVLo 0 Current pos Z_AXIS:%.3f\nCurrent pos Z_AXIS:%.3f\n pos Z_AXIS:%.3f\n"), current_position[Z_AXIS], eeprom_read_float((float*)EEPROM_UVLO_TINY_CURRENT_POSITION_Z),eeprom_read_float((float*)EEPROM_UVLO_CURRENT_POSITION_Z));
unsigned long time_start = _millis();
bool sd_print = card.sdprinting;
// Conserve power as soon as possible.
@ -8866,18 +8865,21 @@ z_microsteps=tmc2130_rd_MSCNT(Z_TMC2130_CS);
planner_abort_hard();
disable_z();
// Finaly store the "power outage" flag.
//if(sd_print)
//save current position only in case, where the printer is moving on Z axis, which is only when EEPROM_UVLO is 1
//EEPROM_UVLO is 1 after normal uvlo or after recover_print(), when the extruder is moving on Z axis after rehome
if(eeprom_read_byte((uint8_t*)EEPROM_UVLO)!=2){
eeprom_update_float((float*)(EEPROM_UVLO_TINY_CURRENT_POSITION_Z), current_position[Z_AXIS]);
eeprom_update_word((uint16_t*)(EEPROM_UVLO_TINY_Z_MICROSTEPS),z_microsteps);
}
//after multiple power panics current Z axis is unknow
//in this case we set EEPROM_UVLO_TINY_CURRENT_POSITION_Z to last know position which is EEPROM_UVLO_CURRENT_POSITION_Z
if(eeprom_read_float((float*)EEPROM_UVLO_TINY_CURRENT_POSITION_Z) < 0.001f){
eeprom_update_float((float*)(EEPROM_UVLO_TINY_CURRENT_POSITION_Z), eeprom_read_float((float*)EEPROM_UVLO_CURRENT_POSITION_Z));
eeprom_update_word((uint16_t*)(EEPROM_UVLO_TINY_Z_MICROSTEPS), eeprom_read_word((uint16_t*)EEPROM_UVLO_Z_MICROSTEPS));
}
// Finaly store the "power outage" flag.
eeprom_update_byte((uint8_t*)EEPROM_UVLO,2);
// Increment power failure counter
@ -8944,6 +8946,8 @@ void setup_uvlo_interrupt() {
ISR(INT4_vect) {
EIMSK &= ~(1 << 4); //disable INT4 interrupt to make sure that this code will be executed just once
SERIAL_ECHOLNPGM("INT4");
//fire normal uvlo only in case where EEPROM_UVLO is 0 or if IS_SD_PRINTING is 1.
//Don't change || to && because in some case the printer can be moving although IS_SD_PRINTING is zero
if((IS_SD_PRINTING ) || (!(eeprom_read_byte((uint8_t*)EEPROM_UVLO)))) uvlo_();
if(eeprom_read_byte((uint8_t*)EEPROM_UVLO)) uvlo_tiny();
}
@ -9009,6 +9013,9 @@ void recover_machine_state_after_power_panic(bool bTiny)
current_position[Z_AXIS] = eeprom_read_float((float*)(EEPROM_UVLO_TINY_CURRENT_POSITION_Z))
+ float((1024 - eeprom_read_word((uint16_t*)(EEPROM_UVLO_TINY_Z_MICROSTEPS))
+ 7) >> 4) / cs.axis_steps_per_unit[Z_AXIS];
//after multiple power panics the print is slightly in the air so get it little bit down.
//Not exactly sure why is this happening, but it has something to do with bed leveling and world2machine coordinates
current_position[Z_AXIS] -= 0.4*mbl.get_z(current_position[X_AXIS], current_position[Y_AXIS]);
}
else{
@ -9109,8 +9116,9 @@ void restore_print_from_eeprom() {
strcat_P(cmd, PSTR(" Y")); strcat(cmd, ftostr32(eeprom_read_float((float*)(EEPROM_UVLO_CURRENT_POSITION + 4))));
strcat_P(cmd, PSTR(" F2000"));
enquecommand(cmd);
// Move the Z axis down to the print, in logical coordinates.
//moving on Z axis ahead, set EEPROM_UVLO to 1, so normal uvlo can fire
eeprom_update_byte((uint8_t*)EEPROM_UVLO,1);
// Move the Z axis down to the print, in logical coordinates.
strcpy_P(cmd, PSTR("G1 Z")); strcat(cmd, ftostr32(eeprom_read_float((float*)(EEPROM_UVLO_CURRENT_POSITION_Z))));
enquecommand(cmd);
// Unretract.