Kinetis Microcontrollers中的主题 MKE16Z LPIT timer is not working.

MKE16Z LPIT timer is not working.

KumarBalaji — Sun, 07 Jan 2024 11:56:49 GMT

Dear Friend,

I am using MKE16Z MCU in my project. In that, I am using LPIT0 for periodic interrupt operation. I have taken the code reference from the SDK example.

Interrupt operation is not working, but the LPIT0 counter is running. Also, LPIT0 counter interrupt operation flag is set. Even I have enabled the interrupt in NVIC vectors.

SDK Version: 2.11.0

IDE Version : 11.5.0

Thank in advance.

Re: MKE16Z LPIT timer is not working.

xiangjun_rong — Mon, 08 Jan 2024 02:13:04 GMT

Hi,

I suppose that you do not enable interrupt. Pls add the lines:

__NVIC_EnableIRQ(PIT_CH0_IRQn);
__NVIC_SetPriority(PIT_CH0_IRQn,0x00);
__asm("cpsie i");
Pls have a try
Hope it is helpful
BR
Xiangjun Rong
 

Re: MKE16Z LPIT timer is not working.

KumarBalaji — Mon, 08 Jan 2024 06:14:32 GMT

Hello Xiangjun,
Thanks for your reply.
I will try your solution. Also, I have come up with one more solution,
I have removed a grounding resistor on Pin no.33(PTD2).
Previously it was pulled to the ground by a 22kohm resistor, after removing it the Interrupt started working.

BR
Kumar Balaji

Re: MKE16Z LPIT timer is not working.

PlsDontDisturbMe — Fri, 13 Sep 2024 16:39:09 GMT

Sorry but can i have your code to configure LPIT please? I have tried but cant make it work. I set PCS,CGC and then turn on M_CEN, but i still not get access to configure the rest of the module like MSR, SETTEN, CLRTEN, TCTRL