3 replies to this topic

[AndrewM]

Hi All,

First post and it's probably a silly one, but I'm having trouble getting serial comms working to and from my netduino.

On the netduino itself I'm using an unmodified version of Hari's serial port learn example ( http://forums.netdui...rt-code-review/ ) I'm using putty on the PC. When I click the netduino button I get garbled text in putty: "¯EÑQ¤¤û´TÊTºúÛÖö»Ô*ªÊT"

When I attempt to type in putty, nothing happens at all (literally, nothing, putty doesn't show what Im typing or anything, and the netduino doesn't seem to recieve any signal)

It's deployed OK, and the debugger attaches, I can see the button pressed event firing OK for example. The problem is probably with my PC comms thing. I'm using a strange usb to serial converter from rev-ed software, the "picaxe usb cable". It's basically a standard FTDI usb-serial (ttl) device, just terminated with a headphone jack on the far end.

I'm connecting to pins D0 and D1 on the arduino (I've tried reversing these two just in case, but then it didn't work at all).

I imagine I'm missing out some detail, so if you need more info let me know and I'll try and provide it (although it might have to be tomorrow now)

Thanks - Andrew

[Chris Walker]

Hi Andrew, This may be a silly question, but are you using the same settings on both sides (bits per second, parity, stop bits, flow control)? If so, what are you using for the serial port settings? It's possible that your adapter only supports lower baudrates, no handshaking, etc. Welcome to the Netduino community, Chris

[michielvd]

I'm having the same problem I heave also written my own code and non of it is working. I didn't saw this post at first. more details are found here http://forums.netdui...ection-problem/

[michielvd]

The problem is probably the same as mine. The converter doesn't use the right voltages. I ordered an other one and the communications worked just fine.