Apologies if this message is too off topic for this list: I just quickly wanted to inform you that I am currently writing a short documentation on developing USB-enabled boards based on the Motorola 68HC08JB8 microcontroller.
The document is available at http://mmyotte.free.fr/hc08_eng.pdf and is still updated regularly. All developments were done under linux, which lowers the whole development cost to buying the microcontroller -- about 8 euros from Farnell in Europe. The circuit can be built very easily and does not need PCB etching equipment. Although I am aware of the spgmr08 effort, I found it too complex to understand and requiring too many external components to be convenient for me, so I have re-written all the programming tools as simple, short, stand alone programs which should be quite easy to understand. The only tools needed for this project are gcc and asxxxx. Currently I am at the point where writing to flash works well, compiling HC08 assembly programs works well, flashing the memory with the example provided by Motorola works and I can see my USB device registered on a Windows running computer. I still have to 1/ re-write the Motorola software (provided in C) in assembly language. Should be done by the end of the week. 2/ find out how to write a simple linux USB device driver for this example to test basic circuits (blinking LEDs, A/D converters etc ...). This latter part I cannot do myself at the moment since I do not own any computer with USB ports and the computers I have access to at work are not under linux. If anyone is interested in this project, I will be happy to provide additional informations. Jean-Michel FRIEDT _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
