hello, experts: I am trying to write driver for one SPI LCD(for UNO), but i don't know how to set Pin11 and Pin13 with HIGH and LOW output. just like this: #define PIN5_LOW {DDRD |= 0x20;PORTD &=~ 0x20;} #define PIN5_HIGH {DDRD |= 0x20;PORTD |= 0x20;} THANKS!!! ]:smiley:

How to set Pin11 and Pin13 with HIGH and LOW output?

system April 25, 2014, 6:42pm 3

pylon:
Why don't you use the SPI library?

because the SPI LCD have not D/C pin