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Add backlight (BL) pin to custom board (AEGHB-3) #46

Closed DCSBL closed 1 year ago

DCSBL commented 2 years ago

What is the current behaviour? Project failed to build when HMI_BOARD_CUSTOM was selected in HMI Board Config > HMI board in menuconfig. The compiler couldn't find the GPIO_LCD_BL pin.

What is the new behavior? (if this is a feature change)? Added BL pin to menuconfig. Allowed range from -1 to 46 to allow setting the pin as GPIO_NUM_NC.