gerbl board seems to be broken RS-CNC32

[geostein8888]

Hello,
this is also working. The text i send is echoed by the stm32 in the message window, including the dots

Georg

[mstrens]

Ok, so the STM32 is working.

You can try to flash again the GRBL firmware.
Then do not insert the STM32 on the board and connect it to the FTDI just like you did for the previous tests.
Connect the FTDI to the PC (via USB) just like before.
Open the Arduino serial terminal.
When you press on the reset button on the STM32, you should get on the pc a message from Grbl (like Grbl version xxxxxx).

If this is not the case, I am afraid that your STM32 is a fake and that you have to by one from another vendor.

If it works, next step will be to check if the ESP32 is well sending commands to GRBL (I can explain how later)

[geostein8888]

Hello,
whle i did that exactly moretimes, is it possible you send me a gerbl hex file from what you know that it is working. i used the one form this site, and tried also to compile and use this and both did not work.
perhaps here is the bug

Georg

[mstrens]

I do not have the Hex file but I have the source code with a right version is on my site.
https://github.com/mstrens/grbl_6axis_o ... RBL-master

Still this requires that you install Atollic and folow the more complex process explained on the forum (and/or in the tutorial) to compile and flash it.

I suggest that you try but I expect that your issue results from a fake STM32.
Did you buy all your STM32 from the same vendor?

[HTheatre]

Hi geostein8888,

I have some STM-32 from RobotDyn, in stock. They work perfectly with our RS-CNC32. If necessary, here is the detail of the service I propose.

See ya

[geostein8888]

Hello,
i programmed now the hex file from this site, and i'm back to the beginning of my problem: when i push reset, nothing happens in the arduino terminal window.
i exspect to get today another stm and also another ftdi (also from different manufacturers) perhaps i have more luck here

Georg

[mstrens]

Your ftdi is for sure OK because it was ok in the previous tests.

If STM32 does not work, it is probably a fake.
Try with one from another vendor.

[geostein8888]

Hello,
got this evening a 4th stm32, again from another manufacturer. I programmed it, same result. When i connect over the terminal, nothing si shown after pushing reset.

Georg

[HTheatre]

Hi geostein8888,

Which programmer did you use to program your new STM-32 ? A ST-link v.2 ?

See ya

[geostein8888]

Hello,
yes i used the same ST-Link V2 i used for the linking test and the echo test before

Georg