Hello John, Your method is quite impressive and challenging. I think PWM is not only for LCD backlighting, but also for signal generation. For instance, imagine an application software that sends a stream to one PWM channel to synthesize sound by changing its period (plays a square wave). By your method, if the other PWM channel is used for LCD backlighting, it may flicker repeatedly on DIV_M changes. (Or simply both channels for streo sound synthesize, you may hear lots of pop noise) It means the setting of one channel can affect the other, which users may not anticipate. Best regards, kikuchan.
