Digital output (RA5) on 16f884

[andybarrett1]

Hi All

Looked at this a little bit further..... I now believe it is RB5/AN13/T1G Causing me the issue.

Maybe the T1G Timer ??

How do I disable this and make the port just a DI

Many thanks

Andy

[tumbleweed]

TRISB = 15

You're only setting RB0-RB3 as inputs

[andybarrett1]

TRISB = 15

You're only setting RB0-RB3 as inputs

Thanks both for help..... Missing the obvious, for some reason I copied and pasted previous code, but left TRISB as 15.

Changed to 255 and all works now......

Thank you again

[Samoele]

You have porta set to output try with resistor 4K7 between RA5 and VCC.

[Demon]

Just a tip for visual people like me:

- use individual bits for fuses, it's much easier to determine which bit is ON or OFF.

For example:
TRISB=%00001111
versus
TRISB=$0F
versus
TRISB=15

Robert

[andybarrett1]

Just a tip for visual people like me:

- use individual bits for fuses, it's much easier to determine which bit is ON or OFF.

For example:
TRISB=%00001111
versus
TRISB=$0F
versus
TRISB=15

Robert

Very good advice.... My problem is disciplining myself to carry it out.

Maybe I need slow down a bit :-)

BR
Andy

[Dave]

Andy, Make sure CM2CON1 is set to all zero's.

CM2CON1 = %00000000
This register defaults to T1GSS to T1G enabled at power on. I don't however believe that is the problem.