cannot use coolant and mist

[IhsanFuadi3]

Hi,why coolant and mist didn't work?
thanks

[terjeio]

Because the pins are used for the JTAG interface per default? It has to be disabled first by calling __HAL_AFIO_REMAP_SWJ_NOJTAG(); somewhere in the startup sequence. If you use JTAG for programming this is no longer possible after this call has been issued. SWJ programming should still work.

You may want check my grblHAL driver for STM32F103 to see how I have done it.

[IhsanFuadi3]

Because the pins are used for the JTAG interface per default? It has to be disabled first by calling __HAL_AFIO_REMAP_SWJ_NOJTAG(); somewhere in the startup sequence. If you use JTAG for programming this is no longer possible after this call has been issued. SWJ programming should still work.

You may want check my grblHAL driver for STM32F103 to see how I have done it.

im sorry,but i dont understand what do you mean,i just learned in MCU

[terjeio]

The JTAG interface is used for programming and when enabled it blocks the use of the pins for other purposes. I had to add code to unblock them before they could be used for coolant and mist.

[IhsanFuadi3]

oke terjeio, thank you,i will try