On 1/5/07, Charles Manning <[EMAIL PROTECTED]> wrote: > I have been using gnuarm.org based stuff for ages and most things are pretty > good. I've used this in a few products over the last 3-4 years. I could not > get gcc 4.1.1 working so we're currently using 4.0.2. > > If you want to get steeped in ARM embedded development then I suggest joining > the gnuarm email group. > > gdb (or other debuuger) is normally used via gdbremote on embedded targets and > works well with Linux. The gdbremote protocol is also used by many other > debuggers. > > The jtag tools typically fall into two groups: > 1) Host-based gdbserver runs on the host and converts gdb remote transactions > into jtag requests. Most well known is openocd which supports a wide range of > jtaggers from thiungs you can make yourself for $10 (wiggler clone) up to > many-hundred-dollar devices. I suggest you start by looking at openocd. > 2) Self-hosting gdb remote servers. These are typically the most expensive > devices (eg. bd12000 at approx $2400).
Gotcha. I've been looking them up, and am going to buy one of the smaller host-based usb-jtag interfaces (advertised with full openocd support; nice). > > Have you considered moving the platform code into a project separate > > from the lejos VM? > > I have considered that, but this is effort and requirtes some motivation (in > other words if I have a few hours I'd rather put it into more Lejos > features). I hear you. Getting a working high-level framework running is what is most useful to the community at large, and it's clear you have all the knowledge needed to get there. I'm still getting started on the much more basic level, so I'm not sure I'll be of much use for now. I've got a few people interested in working on platform code as opposed to working within a JVM, so maybe once we get off the ground we can help out with the platform support code, and getting it going as a separate project in earnest. On that subject, if you have a minute, a couple of questions: did you solder a connector onto the jtag header on the board? If so, do you have the part number for that connector handy? The jtag interface I'm getting has the standard arm jtag connector, which doesn't match the layout on the board. Is there a converter cable available from somewhere, or did you make your own? And finally, regarding the twi driver in lejos. I'm having trouble understanding the function of the clocking loop in the reset code, which as I understand drives a clock signal manually for a couple of cycles. What is the purpose of that? Thanks for the guidance! ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Lejos-discussion mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/lejos-discussion
