"Porting" Teacup to LPC1114FBD48/323

Hi everyone,

i'm currently working on making Teacup run on a LPC1114FBD48/323 with expanded memory and I/O.

So far, with a lot of spaghetti code, i was able to compile a working binary and test some Gcode.
Actually, i'm using a bread board and a CNC shield as test bench, when i'm more confident i will use my Hypercube to run more appropriate tests

Now i'm mashing my brain with Kicad to find a larger house for the little ARM processor.
Any suggestion on features?

I had good result interfacing with an ESP8266 (EPS3D ), maybe OctoPi will work aswell, but i didn't tried yet... anyway my idea is to be able to implement SPI and print with the combo SD+ESP3D.

Right now, i'm cleaning and arraging the source code and i will upload it as soon as possible on the github.

Why this project you may ask? Beacuse teacup firmware, in my opinion of course, is very understable and "SIMPLE", even a thinker like me is able to read C code.
I'm also a supporter for the KISS philosopy, i don't care much on "premium" or "exotic feature" in a 3D printer, i just wanna something simple, "cheap", affordable, understable and open source that work without all the marketing bells and whistles.

Any feedback is welcomed, thanks.

Nice goal, exactly what Teacup wants as well.

I just don't see why this needs new code. Teacup works on a LPC1114 for many years already.

If you want to upload to the original Teacup repo, drop me a line. I'll happily add you as collaborator.

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Generation 7 Electronics	Teacup Firmware	RepRap DIY

Hi dear Traumflug!

I didn't write"new code" YET, I started the SPI with no success, but now I'm more focused on the hardware side.
For now, the two extra port missing in the DIP version (PORT2&3) seems to work right and also the extra memory is adressed.
I've spent more time fidling with compilers issue than the code itself....

On the hardware side, I have a rough proto in kicad, the only SMD is the processor itself, everything else is PTH.
I'm planning to use 5 mosfet (BED, FAN0/1,H0/1), 3 thermistor input and 5 polulu style socket (dual extrusion or dual Z).
As interface, I'm skipping USB, just a socket for the ESP8266 or a FDI serial interface when needed.

I will happily upload the source code as soon as possible.