How to disable MAX3232?

Hi,

does anyone know how to use CON1 instead of the DB-9 connector?

I don't get any signal on CON1 but the DB-9 connector works fine...

Many thanks in advance
mathez

one is TTL (connector) the other is not (db9)

I know,
and I can use TTL devices on CON2 and CON3, but not on CON1. I can connect
to the DB9 using hypertermial and my PC and send and receive data. But my
GPS receiver works only on CON2 and CON3!

I have already routed the debug messages to another port. It seems like I
have to diable the MAX3232 to use CON1!