Modifing the 9th data bit to be 1 or 0

I need the 9th data bit to be 1 or 0 to signify end of data, the serial mode is 9600 9N1 can this be done on the fly in pic basic pro. Im using the serout2 command for my data.

Thanks Sphere.

Quote:

---

Originally Posted by Sphere

I need the 9th data bit to be 1 or 0 to signify end of data, the serial mode is 9600 9N1 can this be done on the fly in pic basic pro. Im using the serout2 command for my data.

Thanks Sphere.

---

Sounds like it might be time to 'bit-bang' your own serial routine. There's a bunch of them out there for the various flavors of the PIC. Shouldn't be too hard to rewrite them to handle 9 bits.

Just done a quick search for a bit bang serial routine, the one I found seems quite simple.

Thanks Sphere.

Would you share the one you found? I need this same thing...

Thanks,

Gabriel

Does your PIC have a UART? 9N1 is possible on most that do ... (see datasheet)

I was thinking on using an old f84A, but if it's easier with the USART, I would do that with one of the 18F's...

Anyway, I would be intersted in the bit banged routine to learn how to do it.

Thanks

The 84A does not but the 16F628A has one (no need to jump to 18Fs unless you want to). ALso, the UART is only TRUE mode not INVERTED - not sure what you need?

I have 18F's at hand. Will check your suggestion. Thanks.

Quote:

---

Originally Posted by gabrielg74

Would you share the one you found? I need this same thing...

Thanks,

Gabriel

---

This is what I found.

Sphere.

http://www.picbasic.co.uk/forum/show...t=bang+routine