mstrens

I would also be interested having the possibility of using USB or UART without having to reflash the STM32. For a group of makers, we made a pcb to support...

I made changes in order to support USB and UART at the same time. In fact it is not "at the same time" because if you send characters to GRBL...

Please note that the code in previous message is not OK. In the mean time, I made change on my site in the master branch in order to use TX...

FYI I wrote a STM32 program that can be used to control a 3 axes CNC running GRBL. Here the link https://github.com/mstrens/grbl_controller_stm32 Look at the readme for more details. It...

Is it possible to use DMA when you do not yet know the number of char to be sent? I presume, the logic is currently to call "serial_write()" byte per...

I changed the code in order to toggle a pin each time the program goes into the main loop (in protocol.c). I put a digital scope on the serial RX...

I made changes in order to use interrupts when sending data via UART (in order to avoid locking the main loop). Code concerns main.c, serial.c and serial.h I tested the...

I made a new change in order to put #define DEBUG_TIMING_WITH_FLOOD_AND_MIST in grbl.h (instead of protocol.c; it was wrong). I also now change the flood pin when I change the...

I have not yet test with USB. Anyway, with USB I can't trace the message with my digital scope (it is just a cheep chinese item). Furthermore, to communicate between...

I know the ESP32 project but I wanted a system that can run is stand alone with a display, a touch screen and a sd card. ESP32 does not have...