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Merge pull request #5228 from thinkyhead/rc_keep_last_mix

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Fix DIRECT_MIXING_IN_G1 to preserve the previous mix
This commit is contained in:
Scott Lahteine 2016-11-15 19:12:01 -06:00 committed by GitHub
commit 5d23e52d75
1 changed files with 16 additions and 6 deletions
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22
Marlin/Marlin_main.cpp
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@ -2672,16 +2672,26 @@ static void homeaxis(AxisEnum axis) {
#if ENABLED(DIRECT_MIXING_IN_G1)
// Get mixing parameters from the GCode
// Factors that are left out are set to 0
// The total "must" be 1.0 (but it will be normalized)
// If no mix factors are given, the old mix is preserved
void gcode_get_mix() {
const char* mixing_codes = "ABCDHI";
for (int i = 0; i < MIXING_STEPPERS; i++) {
float v = code_seen(mixing_codes[i]) ? code_value_float() : 0.0;
NOLESS(v, 0.0);
mixing_factor[i] = RECIPROCAL(v);
byte mix_bits = 0;
for (uint8_t i = 0; i < MIXING_STEPPERS; i++) {
if (code_seen(mixing_codes[i])) {
SBI(mix_bits, i);
float v = code_value_float();
NOLESS(v, 0.0);
mixing_factor[i] = RECIPROCAL(v);
}
}
// If any mixing factors were included, clear the rest
// If none were included, preserve the last mix
if (mix_bits) {
for (uint8_t i = 0; i < MIXING_STEPPERS; i++)
if (!TEST(mix_bits, i)) mixing_factor[i] = 0.0;
normalize_mix();
}
normalize_mix();
}
#endif