All other firmwares set them to zero -> no internal pullup resistor,
as they counter-work to the design of the electronic endstops.
However, in conjunction with mechanical endstops, they're very practical.
Two thermistor tables included:
ThermistorTable.h.dist.old, which is the table we used to have, included so those already using it don't have to recalibrate.
ThermistorTable.h.dist, which was generated with 50 entries, and trimmed down in lower temperature ranges where we don't care as much about accuracy and there's less deviation from a straight line anyway.
Corrected default temp sensor entry in config.h.dist to thermistor instead of intercom. (Now matches earlier definitions which by default say we're using a thermistor)
Added noheater sensor example to config.h.dist
Copied CreateTemperatureLook.py from "official" firmware, and modified it for 14.2 fixed point, no negative temperatures (we're using uint16_t's), and PROGMEM.
Since I simply copied the example linear interpolation formula from wikipedia, I'm certian that it could be more efficient. The code that was there wouldn't work with 14.2 table values, and my understanding of it was too shallow to fix it. This works, and upgading the calculations to uint32_t actually takes less code space than leaving them at uint16_t. I assume it's calling a library routine that's already being linked in for the 32-bit math.
As of reprap-mendel-20100806, the RepRap java host expects resend requests using the new "rs " format only, the version before this only excepted "Resend:"
Repsnapper as of SVN 348 accepts both formats.
Also fixed typo in config.h.dist
Traumflug: to avoid breaking compatibility with earlier host versions, I took the chance to additionally introduce a sort of rudimentary version compatibility system.
heater code. Also remove the temp_achieved() declaration
in heater.h, which has no definition in heater.c.
If you wonder about what might be the use of not having a heater,
think about a paste dispenser or an externally heated extruder :-)
Having no heater removes a whopping 1200 bytes of program size.
can't think of a situation where resetting the controller in the middle
of a build would be useful. Even hanging ist better :-/
The difference in program size is just 238 bytes.
Markus Hitter
Stephan Walter
Michael Moon
John Gilmore (none)
plasmator
dps.lwk