Hey guys. Building my dual X & Y and dual endstop MPCNC using SKRV1.4 (non Turbo) control board. The V1 GitHub only has the firmware for the Turbo board. Unless I am mistaken, the only difference between the two boards is that the non-Turbo uses LPC1768 CPU and and the Turbo uses LPC1769 (it’s clocked a bit faster too). As far as I can tell, all the I/O pin numbers are the same.
My question is…
If I use the “V1CNC_SkrTurbo_DualLR_2209 firmware” are the only things I need to change… [platform.io]… default_envs = LPC1769 to default_envs = LPC1768 [configuration.h]… #define MOTHERBOARD BOARD_BTT_SKR_V1_4_TURBO to MOTHERBOARD BOARD_BTT_SKR_V1_4
One more question… In [configuration_adv.h] it looks like the default stepper voltage is set to 12V. Am I OK to just change this to 24V?
Maybe the 1p3 is closer? I don’t know the new model names that well. There used to be a skr v1.3 (with no extra name) skr turbo v1.4 and skr pro v1.2. If this is the successor to the skr v1.3, then that is probably a closer starting place.
The SKR 1.3 and SKR 1.4 (not Turbo) have the same processor and general pin layouts the same, with some updates (looks like to fans) and a dual Z motor interface (which we don’t care about and won’t use.)
I am sure that I have seen people use the 1p3 firmware on a 1.4 board successfully, but updating the board definition and recompiling is a sure win, I think. If the updates were to fans the base 1p3 firmware might not work with a laser, since some PWM pins would be reassigned, but would work with the motors and endstops, so depends on use case.