Serial input
Hi all,
I am using Holtek HT12E to build a remote control that is sending data to thae Basic Stamp 2. I can cleary see the signal on the oscillocope so I can culculate the frequency of transmition of pulses. What I dont know is how I can find the Baud that I must specify
at the SERIN command?
Does anyone know how to calculate the Baud Rate?
Thanks
I am using Holtek HT12E to build a remote control that is sending data to thae Basic Stamp 2. I can cleary see the signal on the oscillocope so I can culculate the frequency of transmition of pulses. What I dont know is how I can find the Baud that I must specify
at the SERIN command?
Does anyone know how to calculate the Baud Rate?
Thanks
Comments
·
1200 bps is esentially 1200 Hz.
The time for each bit = 1 / 1200
······················=· 833 usec
If a bit is 833 usec, then the bit rate = 1 / 833usec
········································= 1200 Hz (bps)
Once you know that, then you can look up the Baudrates in the tables provided in PBASIC Help.
Post Edited (PJ Allen) : 3/2/2006 9:08:12 PM GMT
It is actually an encoder chip which transmits data serially, but not in the usual RS-232 format. Seeing as how the matching HT12D is the decoder, it makes sense to use the pair.
Cheers