I am using S32K144 MCU and i want to generate the Complementary PWM signals. I am able to do so but when i am trying to change the duty cycle of my complementary signals, it is not happening.
My PWM FTM settings are: using FTM instance 0, channel 2 and 3 as complementary PWM mode in inverted mode:
In my application code, i am using these API's:
Pwm_Init(&Pwm_Config_BOARD_InitPeripherals);
//When we want to use the Interrupts, so that call back function can be hit on every time PWM signal edge changes
//Pwm_EnableNotification(channel0, PWM_FALLING_EDGE);
Pwm_SetDutyCycle(channel2, 000);
TestDelay(700000);
Pwm_SetDutyCycle_NoUpdate(channel2, 13000);
Pwm_SyncUpdate(instance0);
Pwm_SetPeriodAndDuty(channel2,23000,11384);
TestDelay(700000);
But my Complementary PWM signal duty cycle is not varying, after initialising.
I further debugged also and what i found that (in my case as i am using channel 2 and 3). Channel 3 CnV register value is not getting updated even after it does so in code:
In above figure, in text editor you can see it is writing value of 0x541f in CnV register of channel 3. But still in EmbSys Register View my CnV regsiter value of Channel 3 is not getting updated.
Why is it so????
How can i do duty cycle variation of Complementary PWM signal
But my Complementary PWM signal duty cycle is not varying, after initialising. Though Complementary signals are generated after pwm_Init() api, as shown in below figure:
But am not able to change the duty cycle, after pwm_init () on using mentioned API's
