Samsung S3F84A5 Manuale Utente

 

 shows the software implementation. 

Initialization

Value > max?

ADC sampling

Vale < min?

Decrease PWM

duty cycle

Increase PWM

duty cycle

 

Since the PWM in S3F84P4 is 6+6 type, it affects the software in two ways. 

  Way to change the PWM duty cycle: The duty cycle is the result of both the register values of PWMDATA and 

PWMEX. Therefore, any increase or decrease in register from PWMDATA will not change the duty cycle. For 
more details on register PWMEX, refer to the S3F84P4 User’s Manual. 

 shows the right way to 

change the PWM duty cycle.