Is there a function like DAC output on i.MX RT1060

[kenji]

Hi All

I'm working on BLDC motor control, with MIMXRT1060-EVK.

For debug, to visualize the motor control calculation result, I would like to output via DAC.

However i.MX RT 1062 device has no DAC function to output outside of the device.
Reading the user manual, it seem that only can output inside of the device.

I tried to visualize with SWO and FreeMASTER, but for sampling frequency problem, I could not use it. Both tools sampling freq are too slow to use.

Is there any tricks to output DAC, outside of the device?

Or is there a way to output the internal calculation result at high speed?　The control cycle of the motor is 50kHz.

[mjbcswitzerland · Accepted solution]

Hi

PWM + low pass filter (eg. simple R/C filter) = DAC

Regards

Mark

[kenji]

Hi @mjbcswitzerland -san

Yes, I know.
Maybe that's the only way for MIMXRT1060-EVK, so I'll use a filter.

Thank you!