Hi,
I'm new to Arduino and have been having a tough time figuring out how to read a stream of 9 16bit words. Each 16bit word has a start and stop bit. The signal is an output from a 2.4Ghz RC Satelite Receiver that normally feeds the main receivers decoder and represents the pulse width of each servo/channel. The 9th word is a checksum. The signal repeats every 20ms, pulse width is 25us (40KB).
Any help would be greatly appreciated,
C
What have you written so far?
Post it, and maybe we can comment.
Better still, post the specification of the serial stream, or a link to it.
Maybe have a look at the software serial library source, and work out from that.
I haven't written anything yet, I'd like to use the software serial library or a modified one but don't think I'll get the 40Kb rate I need. The newsoftserial library gets 50K on a 16Mhz atmega but at 8bit rate, if I modify it for 16bits I don't think it will work. I'm trying to understand interupts and timers but so far haven't found a good example.
I woke up this morning with a fresh mind and was able to solve my problem. I used a timer and interrupt to read the signal and have it working well. The more I learn about the Arduino/Atmega the more I am impressed. I have some experience with PICAXE, BASIC Stamps, and Propellers and am finding the Arduino/Atmega hard to beat. I don't have the time or patience to learn assembler, but suspect someday I may need to.