ChibiOS Free Embedded RTOS

confirmed - powered hub and all 3 usbs from this hub helped

Update - now I believe it is because of some ground issue. I have board powered from USB, I2C devices are powered from USB 5V on that board. STLinkV2 is powered from another USB everything works but as soon as I connect ftdi or esp8266 powered by third USB (and connected to board by tx/rx/ground) it...

Is there some way how to stop program by debugger in state that will not break i2c ? Or is there some way how to "reset" bus ? I have two 6050 on I2CD2 (STM32F407) on wires (STD/100kH) and also at24c08 memory on I2C1 directly on pcb (FAST/400) Problem with 6050 could be fixed by power cycl...

thanks, I will keep it as it is because it is much easier to read and manage

What is recommended use of threads (STM32F407) ? In robot, I have one IMU thread reading data from two 6050 over I2C on Prio+2. There is about 3-4ms delay between reads (about 200Hz update from DMP on 6050s) But now considering how to deal with other stuff - pwm stuff, some calculations, adc sensing...

ok, so I used fresh Chibistudio and imported project into User workspace and problem is fixed.

Maybe something with update or messed by me.

Thanks for help

yes, without change

copy g++ fixed one error (but second stays). I tried to expand Index resettings, tried couple of others settings in IDE and not help. I moved my working code out to simple function so I am 100% sure that it is not made by code inside of thread macro. GCC is 9 https://i.ibb.co/ynmn2BD/eclipse.png

Solving one issue with latest Studio, GCC7 or 9 and Chibios 2.0.3 I can compile and run program without issues, I can breakpoint. Chibios debug view doesn't but all thread code like static THD_WORKING_AREA(AdcThreadWorkingArea, 128); or static THD_FUNCTION(AdcThread, arg) { } have mark as Syntax err...

Updated to 20.3 and situation is same - LSE activation breaks USB CDC