Sorry but this code didn't work for me, cause I'm on a Mac and it can't get port numbers, only names. Anyway initialization is not the problem: this SerialPort2 class uses two methods called *getOption:* and *setOption:to: *which get and set these port parameters (baud rate, data bits, flow control... even handshake settings). Now after starting the program I'm getting default settings on a transcript window and they seem ok:
1. baud rate: 115200 2. data bits: 8 3. stop bits: 1 4. parity type: 0 5. input flow control type: 0 6. output flow control type: 0
20. DTR: 1 21. RTS: 1 22. CTS: 0 23. DSR: 0 24. CD: 0 25. RI: 0
Then that's not the problem... I guess that the way I'm sending bytecodes it's not correct, because there's no response from board.
Thanks again :)
El 21 de junio de 2009 14:12, Víctor C. T. victorct83@gmail.com escribió:
Certainly the class SerialPort2 that I use doesn't have any method with these initialization parameters, I didn't realize it... (this is a bit embarrassing...) :P
Well, I'll prove your code tomorrow at work. Thanks a lot for your help Jon!!!
2009/6/20 Jon Hylands jon@huv.com
On Sat, 20 Jun 2009 21:39:37 +0200, Víctor C. T. victorct83@gmail.com
wrote:
Is it correct? I don't get any error at this point...
I don't see any code to specify the # of data bits, # of stop bits, or the parity. Do they default to the "normal" values (8N1)?
Also, you need to make sure the port itself is set up without any hardware flow control - I've never used an Arduino, but I assume its providing a USB interface that ends up using an FT232 or something like that.
That serial port class is different than the one I use for my robotics stuff. I've attached the serial port class I use, and it is set up like this:
| serialPort baudRate comPortNumber | baudRate := 115200. comPortNumber := 2. serialPort := SerialPort new baudRate: baudRate; dataBits: 8; stopBitsType: 1; parityType: 0; yourself. (serialPort openPort: comPortNumber) isNil ifTrue: [ ^self error: 'COM port not available' ]. ... serialPort close.Later, Jon
Jon Hylands Jon@huv.com http://www.huv.com/jon
Project: Micro Raptor (Small Biped Velociraptor Robot) http://www.huv.com/blog
-- Víctor