Graphic LCD interfacing with Pic controller ( Any Pins )

[Sajjadkhan]

In mikroC example we connect GLCD to any port by defining this statement

---

Code C++ - [expand]
1
char GLCD_DataPort at PORTD;

---

This dedicates all pins of the port and not allowing you to use specific pin of the port.

For example i am using PIC 16f887A (28 DIP Package ). I cant use portB as i need the interrupt pin and i cant use portC as i need PWM pin. Other ports are incomplete and i dont want to use bigger controller.

Is there some way around it like if i can set individual bits using "sbit".

 

[FvM]

This dedicates all pins of the port and not allowing you to use specific pin of the port.

That's because the GLCD driver uses a 8-bit data port. Using arbitrary port bits for it would cause a considerable code overhead and slow down GLCD accesses by a factor of 20 to 50.

But you can still write your own GLCD driver that uses arbitrary bits or e.g. two nibbles of different ports for data.