دوستان من ال سی دی رو به شکل 4 بیتی و از مثال مجله انجام دادم ولی هنگام کامپایل ارور زیر میاد مشکل از کجاست با تشکر
test.c(7): warning: #223-D: function "lcd_pin" declared implicitly
test.c(11): error: #65: expected a ";"
test.c(13): warning: #223-D: function "delays" declared implicitly
test.c(16): warning: #223-D: function "display_off" declared implicitly
test.c(18): warning: #223-D: function "display_on" declared implicitly
test.c(23): warning: #223-D: function "lcd_pustf" declared implicitly
test.c(28): warning: #223-D: function "lcd_shift_right" declared implicitly
test.c(33): warning: #223-D: function "lcd_shift_left" declared implicitly
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