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'[PIC] Swap port line order to simplify PCB layout'
2008\12\12@144845 by J FLETCHER

flavicon
face

Hi, can anyone help me with some advice?
 
I'm interfacing a PIC16F876 to a 20 x 2 line alphanumeric LCD. I'm using
4 bit mode with the lower 4 bits of Port B for the data lines. The LCD's
connections are in two rows at one end and the PIC is below the display. 
I'm restricted to using a single-sided board and struggling to lay the tracks
to the PIC without having to use links to cross some of the lines over.

If I could reverse the order of the lines like this:
 
PIC    LCD

2008\12\12@144845 by J FLETCHER

flavicon
face

Hi, can anyone help me with some advice?
 
I'm interfacing a PIC16F876 to a 20 x 2 line alphanumeric LCD. I'm using
4 bit mode with the lower 4 bits of Port B for the data lines. The LCD's
connections are in two rows at one end and the PIC is below the display. 
I'm restricted to using a single-sided board and struggling to lay the tracks
to the PIC without having to use links to cross some of the lines over.

If I could reverse the order of the lines like this:
 
PIC   LCD

2008\12\12@144846 by J FLETCHER

flavicon
face

Hi, can anyone help me with some advice?
 
I'm interfacing a PIC16F876 to a 20 x 2 line alphanumeric LCD. I'm using
4 bit mode with the lower 4 bits of Port B for the data lines. The LCD's
connections are in two rows at one end and the PIC is below the display. 
I'm restricted to using a single-sided board and struggling to lay the tracks
to the PIC without having to use links to cross some of the lines over.

If I could reverse the order of the lines like this:
 
PIC  LCD

2008\12\12@144847 by J FLETCHER

flavicon
face

Hi, can anyone help me with some advice?
 
I'm interfacing a PIC16F876 to a 20 x 2 line alphanumeric LCD. I'm using
4 bit mode with the lower 4 bits of Port B for the data lines. The LCD's
connections are in two rows at one end and the PIC is below the display. 
I'm restricted to using a single-sided board and struggling to lay the tracks
to the PIC without having to use links to cross some of the lines over.

If I could reverse the order of the lines like this:
 
PIC     LCD

2008\12\12@144848 by J FLETCHER

flavicon
face

Hi, can anyone help me with some advice?
 
I'm interfacing a PIC16F876 to a 20 x 2 line alphanumeric LCD. I'm using
4 bit mode with the lower 4 bits of Port B for the data lines. The LCD's
connections are in two rows at one end and the PIC is below the display. 
I'm restricted to using a single-sided board and struggling to lay the tracks
to the PIC without having to use links to cross some of the lines over.

If I could reverse the order of the lines like this:
 
PIC      LCD

2008\12\12@144850 by J FLETCHER

flavicon
face

Hi, can anyone help me with some advice?
 
I'm interfacing a PIC16F876 to a 20 x 2 line alphanumeric LCD. I'm using
4 bit mode with the lower 4 bits of Port B for the data lines. The LCD's
connections are in two rows at one end and the PIC is below the display. 
I'm restricted to using a single-sided board and struggling to lay the tracks
to the PIC without having to use links to cross some of the lines over.

If I could reverse the order of the lines like this:
 
PIC LCD

2008\12\12@153407 by Picbits Sales

flavicon
face

> Hi, can anyone help me with some advice?
>
> I'm interfacing a PIC16F876 to a 20 x 2 line alphanumeric LCD. I'm using
> 4 bit mode with the lower 4 bits of Port B for the data lines. The LCD's
> connections are in two rows at one end and the PIC is below the display.
> I'm restricted to using a single-sided board and struggling to lay the
> tracks
> to the PIC without having to use links to cross some of the lines over.
>
> If I could reverse the order of the lines like this:
>
> PIC LCD

Pleeeeeease stop sending the same thing over and over again !!!!!!

Yes you can swap the port bits over if you're using PORTB but you might have
to write some extra code to shuffle the bits around a bit before you write
them to the port.

Dom

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