[time-nuts] Virgin time nutter fell at the first M12+ hurdle

Stephen si at 2si.co.uk
Wed Jun 11 12:04:01 EDT 2014


Hello everyone,

After reading quite a bit from your archives i've decided to try a put together a 10MHz reference.

I've picked up a oncore M12+T GPS card and have tried to initialise it but without any success thus far.

The user manual for the M12+T seems to suggest that i should be able to hook the txd and rxd pins to a MAX3232 and be able to use the Winoncore software to configure the card.

At power up the M12+T pins 1 & 2 are at 3V. After 10 seconds pin 2 sinks to 0V, pin 1 idles at 3V and pin 4 give 1PPS.  No serial output from the card at all.

Anyone have experience of connecting an M12+T to rs232?

Stephen


More information about the time-nuts mailing list