mbed

I'm interested!

Do you plan to post step-by-step instructions here?

Do you have mbed.lib linking, or only CMSIS drivers?

two good questions,

I hope to post a set of guide lines, on how to get things working, it may

take the form of a code example, with Makefiles etc, but with lots of

comments in the code.

We looked at using the mbed.lib library, and gave up in the end, it was

just to troublesome, so we are using the CMSIS driver library, and one

by one getting them going. Currently we have the CMSIS version of

FreeRTOS going, and the USB serial driver, and the RS232, onboard

LED's today :-)

Pete

Here's another topic about this, with instructions:

http://mbed.org/forum/mbed/topic/665/

thanks for that, I had not come accross it before, will have a look

Pete

Update:

Now have the basics of the I2C bus running, and hope to finish this off today, the blue MBED board leds

started flashing yesterday.... See:

http://www-users.cs.york.ac.uk/~pcc/Circuits/mbed/baseboard/baseboard_2.html

for what we hope will be the replacement for a teaching solution we have, also the

current state of the CMSIS library, version of FreeRTOS and the code I have can be found here :-

http://www-users.cs.york.ac.uk/~pcc/Circuits/mbed/baseboard/gcc.html

Have fun

Pete

The I2C bus now has the following devices, SAA1064 (4 by 7 seg display driver), Batron 16 by 2 line LCD

display, and the PCF8574 PIO chip, giving access to a 4 by 4 keypad latest archives can be found here

http://www-users.cs.york.ac.uk/~pcc/Circuits/mbed/baseboard/gcc.html

Looking at moving the whole source to here, trying Doxygen for the first time so bare with me, but

the project should all get placed here till its part of our teaching course

Pete

http://www-users.cs.york.ac.uk/~pcc/MCP/index.html

CMSIS and FreeRTOS source tree are here, this was built against the Code Sourcery

GCC compiler, we are currently building a GCC tool chain from source here to support

the project.

http://www-users.cs.york.ac.uk/~pcc/MCP/index.html

Peter, I'm working on a similar (in spirit) FreeRTOS and GCC-support project:

http://github.com/hugovincent/arm-eabi-toolchain

http://github.com/hugovincent/mbed-lpc2368-freertos

At the moment I only have mbed beta hardware (ARM7 LPC2368) but as soon as I can get my hands on a Cortex/LPC1768 mbed I'll port it there as well. It is my (long-ish term) aim to re-implement the mbed API and libraries in free, GPL'd code, and to integrate these with the FreeRTOS operating system better. This is contingent of course on the mbed team allowing such a use of their header files (which have no license information in the copyright header blocks...)

I'll look at integrating your work into my own tree if you don't mind?

Hi Peter,

Excellent work! I'm very interested, and will contact you directly, but I wanted to express my excitment and gratitude here in the mbed forum.

Hi Pete,

None of this links are working anymore, did the project die?

Thanks

Andy

We are in the process of moving buildings here at York University, so have not been

working on the project for a couple of months, but the project is very much alive,

just in hibination, also moving the computer room has not helped :-)

Will get the links sorted out next week

Pete

Hi Pete,

Ah, good to know, FreeRTOS would be very nice to get going on my mbed.

I will keep an eye on the links :)

Cheers

Andy

should be back

Thanks Peter

Thanks, Peter.  This really got me pointed in the right direction for where I want to go.  At the moment, I'm just focused on my mbed with an RJ45.  I want to flex my GNU tools as much as possible to get the results I want.  That means arm-elf-gcc or arm-eabi-gcc on my local system using Emacs as an editor and some macros.  Not just the code, but the general information you have posted on the site is fantastic for a relative newbie like myself.

Cheers.

There is a new version of the CMSIS library from NXP, (The device driver library)

the makefiles need a few tweeks to work on a Unix/Linux system, but it compiles

just lerning the new functions, will update the zip/tar files on our web server at

some point in the next month, but for now here is the link to the file on the NXP

site: http://ics.nxp.com/support/documents/microcontrollers/zip/lpc17xx.cmsis.driver.library.zip

Might be a question for NXP but why the needed tweaks for Unix/Linux?  I only develop on GNU/Linux using the GCC ARM toolchain.  I'll take a look at the library, but figured I'd toss the question out there.

Thanks!

I believe the tweaks are for minor to trivial things, like different paths and path-separators ('/' vs '\' etc).

Yes, its just to set the paths right, the examples are set to build in a DOS enviroment,

and been a linux user for the past 16+ years, the DOS enviroment is not good :-)

Updated the state of the GCC port now I have time to work on it again

see: http://www-users.cs.york.ac.uk/~pcc/Circuits/mbed/baseboard/gcc.html

The official offline GCC toolchain for mbed is here: GCC ARM Embedded.