Code is written to capture both duty and period of each PWM cycle to calculate the voltage accurately. I have used function generator and the actual PWM from IC signal to perform input capture. Results are same as posted above. In the block dia...
Enhanced Pulse Width Modulation (EPWM) - produces a variable pulse width signal based on a pulse width and period value set in the application's code along with auto-shutdown, auto-restart, dead-band delay, and PWM steering modes. In addition, the EPWM can drive various PWM arrangements: ...
duty cycle is calculated as a percentage value between the amount of increments of the timer T12 between the rising and falling edge (high level time) and the total amount of increments between two rising edges (period) › An overflow of timer T12 triggers the second interrupt (CCU6...
() › Get the PWM period in seconds with the iLLD function IfxGtm_Tim_In_getPeriodSecond() › Calculate the PWM frequency with the formula: frequency(Hz) = 1 / period(s) › Get the PWM duty cycle by calling the iLLD function IfxGtm_Tim_In_getDutyPercent() All the iLLD...
float32 g_measuredPwmDutyCycle = 0.0; /* Calculated duty cycle of the measured PWM signal */uint32 g_cntOverflowPeriod = 0; /* Counter of timer overflows between two rising edges */uint32 g_cntOverflowHighLevel = 0; /* Counter of timer overflows between a rising and a falling edge ...
GPR0 contains the duty cycle length and GPR1 contains the period. Best Regards,Ulises L Like 319 0 5 Wenxiang_Wang Level 3 31 May 2024 In response to Ulises_L Hi @Ulises_L , I think the external capturing signal (10 kHz) does not work as a clock to measure the PWM ...
echo 80000 > pwm0/duty_cycle ... --- g). Verdin i.MX8MM Cortex-M4 输出周期会对应变化 --- Input Capture Half Period Value = 0ms and 80us Input Capture Half Period Value = 0ms and 80us Input Capture Half Period Value = 0ms and 80us Input Capture Half Period Value...
The high time and low time of the output signal are each equal to tw, therefore the output signal produced has a 50% duty cycle and a period equal to 2 * tw. The appropriate prescaler value can be de- termined using the following equation: tw = [(PRH * 256) + PRL + 1] * tc...
Timer Driver Configuration Settings for the Application Project ISDE Property Parameter Checking Name Channel Mode Duty Cycle Range Period Value Period Unit Duty Cycle Value Duty Cycle Unit Auto Start GTIOCA Output Enabled GTIOCA Stop Level GTIOCB Output Enabled GTIOCB Stop Level Callback Interrupt ...
7. Pins can be configured for direction, pull features and HR sharing features in the "Pin" tabs. 3 N2HET Instructions Used in HALCoGen 3.1 For PWM Generation These are the instructions that are used for the generation of a PWM with variable duty cycle and period. Instruction PWCNT DJZ ...