If the MPC pin is connected to the LED, it can only output high/low, that is LED on/off operation.
If you want to adjust the brightness of the LED, need to connect the LED to the LED pins of the chip and adjust it in the register LEDISet [4:0].
If the MPC pin is connected to the LED, it can only output high/low, that is LED on/off operation.
If you want to adjust the brightness of the LED, need to connect the LED to the LED pins of the chip and adjust it in the register LEDISet [4:0].