Re: Serial port problem on ARM board

Op Fri, 19 Sep 2008 03:37:18 +0200 schreef peter_H <zhenhua0018@xxxxxxx>:
Hi, I bought a ARM920T based dev. board from
http://www.developmentboard.net couple weeks ago. It came with a manual and
in these days I"m following the manual to test it, now I get a problem. I
am using Windows VISTA OS on Dell laptop which is not having a 9pin serial
port, after consulting the vendor I bought a USB adapter to connect the USB on the laptop and the serial port on the board, and copied the
hyperterminal (.dll and .exe) from Window XP to Vista, and now trying to
coumminicate with the borad. Now here"s the problem.

1. on the hyperterminal window I can not find the serial port COM1 as the
manual says, but COM20 and COM3 instead. And these two ports do not work.

COM3 is usually a built-in wireless adapter like InfraRed or BlueTooth, COM>4 are usually dynamic allocations. If Vista still has the device manager applet, you can use that to find out which is which.

So question 1: what should I do with the serial port thing?

Try it on a computer with a built-in COM port and no Vista.

Question 2: There are 3 troops of jumpers on the board, respectively
controlling the selection of the function (device or host) of the USB
interface, selection between SPI0 and PS2, and that between SPI1 and PS2.
Can I still get the system up if I do not connect the jumpers on the
board?

That kind of information should be in the documentation, either described in a manual or deriveable from the schematics.



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