Arduino for STM32

Hi All!

It turned out to be the 2.8.0 core. Deleting it brought the ports back

Rgds,
Tapio

Hi everyone!

I have a weird problem with Ports missing(greyed out in tools).

Few days ago connecting usb cable caused my win7 pc to blue screen and ports in 1.8.18 got greyed out.

I deleted 1.8.18 and put in a fresh download of 1.8.19 but no help.

I am using STM blue pill with rogers core ...

Hello All!

I am thinking about testing an idea for motor control where I'd need a pcb smaller than blue pill.

Which functions/functionalities in Roger's core stop working if I omit the
32khz oscillator
reset button
boot pin headers ?

I need:
timer1
adc
hardwareCAN
few IO's

Programming with st ...

Hello everyone!

This indeed turned out to be this exact issue viewtopic.php?t=1080

I removed the overflow interrupts from timers 2 and 4 (ie encoder and pulse counter)
and moved the checking of overflow to the beginning of the pid loop.

All errors are now gone

Rgds,
Tapio

Hi and thank you for taking time to reply.

Following is what I at least think I'm doing:

Timer1 runs PWM in complementary mode with dead time enabled.
Timer1 configured to overflow at 5560 for app. 13kHz PWM freq.

Timer2 (enc) is hardware quadrature encoder connected to HEDS optical encoder ...

Hi everyone!

I am/have been building a small router with dc servomotors based on blue pills and cheap h-bridges,
using arduino 1.8.18 and Roger's core
I already have excessive hair thinning caused by head scratching trying to find the cause for infrequent movement errors.

Last week I finally ...

Hi all!

I helped my friend to build a small cnc router with blue pills and IBT-2 boards as servo drives.

Otherwise simple project is suffering random movement errors due to electrical noise.

Attached pic shows control enclosure with cover removed.
I have 3 blue pills and a pokeys board spaced app ...

I understand reading the user manual for F103 that DMA can be used with timers.
Am I correct in thinking that encoder over/underflow event could be handled in DMA instead of interrupt?
Or have I got this wrong?

If correct then does anybody have/know of an example?

Rgds,
Tapio

The Windows driver has always been problematic. On W7 it was acceptable, on W8.0 it was a bitch, on W8.1 it could be tamed but would often go on a tangent, and W10 with current patches is somewhat working OK.

Linux just works... all the time once permissions are correctly set.


This got me ...

I believe Op is wishing to drive ModBus to Mach3. The interface is well documented:
http://www.homanndesigns.com/pdfs/Using_Modbus_with_Mach3.pdf


Yes, this is my intent. I need to get info / pin states from blue pill to Mach3 and modbus is only feasible way.



If I were attempting to do ...