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- /*=========================================================================================================
- BBB_expansion_header_pins GPIO number 16x2 LCD pin Purpose
- ===========================================================================================================
- P8.7 GPIO_66 4(RS) Register selection (Character vs. Command)
- P8.8 GPIO_67 5(RW) Read/write
- P8.9 GPIO_69 6(EN) Enable
- P8.10 GPIO_68 11(D4) Data line 4
- P8.11 GPIO_45 12(D5) Data line 5
- P8.12 GPIO_44 13(D6) Data line 6
- P8.14 GPIO_26 14(D7) Data line 7
- P8.16 GPIO_46 15(BKLTA) Backlight anode(+)
- P9.15 GPIO_48 16(BKLTK) Backlight cathode(-)
- P9.0 ---- 1(VSS/GND) Ground
- P9.7 ---- 2(sys_VDD +5V) +5V supply
- ============================================================================================================= */
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