S32KのトピックPWM Input Capture Delay Issue in S32K344

PWM Input Capture Delay Issue in S32K344

NAGASOUNDARYA — Thu, 29 May 2025 10:42:04 GMT

In PWM INPUT CAPTURE ONLY WORKED IN DELAY = 4000000, WITHOUT DELAY NOT GET the PWM OUTPUT HOW TO RESOLVE THE ISSUE, BELOW I ATTACHED THE CODE.

// Read PWM frequency and duty cycle from the input pin (ISN_MTR_PWM_IN)

pwm_icu_data result;
Emios_Icu_Ip_GetDutyCycleValues(PwmPinMapConfig[PwmSignalName].Instance_Val, PwmPinMapConfig[PwmSignalName].Channel_Num, &Ipwm_duty_cycle);
uint16 active_time = Ipwm_duty_cycle.ActiveTime; // Get the high time
uint16 period_time = Ipwm_duty_cycle.PeriodTime; // Get the total period
if (period_time > 0)
{
result.frequency = clock_frequency/period_time;
result.captured_duty_cycle = ((double) active_time /(double) period_time) * 100.0;
}

// Start PWM on CHILLER_EX_VALVE channel with frequency and duty cycle

Start_Pwm_Output(Chiller_Ex_Valve, Frequency, Duty_Cycle);

delay();

Re: PWM Input Capture Delay Issue in S32K344

_Leo_ — Thu, 29 May 2025 20:34:27 GMT

Hi,

Thank you so much for your interest in our products and for using our community.

For period and duty cycle measurement, please refer to the following community post:

https://community.nxp.com/t5/S32K/s32k312-Measure-the-pwm-pulse-using-eMIOS/td-p/2086167

Hope it helps you.

Have a nice day!

Re: PWM Input Capture Delay Issue in S32K344

NAGASOUNDARYA — Fri, 30 May 2025 06:55:48 GMT

i need RTD 4 VERSION

Re: PWM Input Capture Delay Issue in S32K344

NAGASOUNDARYA — Fri, 30 May 2025 06:58:41 GMT

HI above one is not working in my code it shows default period 65536 why? and i need RTD 4 VERSION above one is RTD 5 ?