S32K144 LPIT timer is inaccurate

[547416104]

Hello EveryOne,

I usd SDK to config the LPIT, and delay 100ms to send command to slave IC，but I find the time interval is inaccurate， it is more than 100ms. I check the timer task, no redundant code is running, whether need to do other configure for the lpit module?

thanks!

[547416104]

The issue is fixed, timer is holded by ADC autocalibration active.

[Robin_Shen · Accepted solution]

Hi 

Please toggle a GPIO in LPIT interrupt and measure the period by using oscilloscope. I try to modify the lpit_periodic_interrupt_s32k144 SDK example and able to get 1ms when input Timer period 1000.

Best Regards,
Robin
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