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start implementing absolute E support

This commit is contained in:
Michael Moon 2011-04-09 09:16:05 +10:00
parent b37a5d435e
commit ae33cb7fa2
2 changed files with 14 additions and 4 deletions
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9
gcode_parse.c
View File

@ -385,9 +385,14 @@ void gcode_parse_char(uint8_t c) {
if (next_target.option_relative) {
next_target.target.X = next_target.target.Y = next_target.target.Z = 0;
#ifdef E_ABSOLUTE
next_target.target.E = 0;
#endif
}
// E always relative
next_target.target.E = 0;
#ifndef E_ABSOLUTE
// E always relative
next_target.target.E = 0;
#endif
}
}

9
gcode_process.c
View File

@ -88,6 +88,9 @@ void process_gcode_command() {
next_target.target.X += startpoint.X;
next_target.target.Y += startpoint.Y;
next_target.target.Z += startpoint.Z;
#ifdef E_ABSOLUTE
next_target.target.E += startpoint.E;
#endif
}
// E ALWAYS relative, otherwise we overflow our registers after only a few layers
// next_target.target.E += startpoint.E;
@ -193,7 +196,7 @@ void process_gcode_command() {
zero_z();
axisSelected = 1;
}
// there's no point in moving E, as E is always relative
// there's no point in moving E, as E has no endstops
if (!axisSelected) {
zero_x();
@ -231,7 +234,9 @@ void process_gcode_command() {
axisSelected = 1;
}
if (next_target.seen_E) {
// there's no point in setting E, as E is always relative
#ifdef E_ABSOLUTE
startpoint.E = current_position.E = next_target.target.E;
#endif
axisSelected = 1;
}