WB_PWM8 - Initialization

The following steps outline the basic procedure to initialize the WB_PWM8 Controller ready for operation. You will need to re-initialize the Controller after each external reset.

• Write the required value for the pulse width to the PWMRG register

• Write the required low-order byte of the pre-scale value to the PWPLO register

• Write the required high-order byte of the pre-scale value to the PWPHI register

• Write the necessary value to the Control register (PWCON) to enable the Controller and interrupts. For example, to enable the controller and all interrupts, the following bits must be set:
   
  • pwen (PWCON.0) – enable the Controller
  • pien (PWCON.1) – global interrupt enable
  • prie (PWCON.2) – enable pre-scaler counter interrupt
  • pwie (PWCON.3) – enable PWM counter interrupt.

The value written to the PWCON register would therefore be 0Fh.