Works a treat, cheers

Ordered some parts after reading this (pdf) http://www.eetkorea.com/ARTICLES/2001SE ... AMD_AN.PDF and explained the things I was missing. Will report back if they work.

That clear thing up. Now to port and post the function. Cheers

Thanks for the code. Do you have to add 39 pF caps as in http://www.coridium.us/ARMhelp/index.ht ... rPins.html ?

I have written a quick script in basic to create a XOR checksum but now I'm working on CRC-CCITT http://en.wikipedia.org/wiki/Computation_of_CRC http://www.lammertbies.nl/comm/info/crc-calculation.html If I could address individual bits I'd be on my way. Is there any way to do this? At the moment I'...

Finally understood what you mean and have working hex serial code #include <SERIAL.bas> SERINtimeout = 700000 'SENDING DATA TO GPS DIM BYTES(255) AS STRING dim serialarray(255) as BYTE wait(3000) serialarray=chr(&HB5)+chr(&H62)+chr(&H06)+chr(&H24)+chr(&H24)+" "+chr(&HFF)+chr(&HFF)+chr(&H06)+chr(&H03...

Hi guys, I've been trying to use a coridium basic chip for a high altitude ballooning project. All is well listening to the gps (ublox 6) on serial but I can't send messages to it I'm just trying to send sentences such as the ones here http://ukhas.org.uk/guides:ublox6 ie the strings from // Turning...