Microcontroller via USB

Soeren Heisrath soeren at heisrath.org
Fri Feb 20 13:53:52 CET 2009


you don't need a kernel module - libusb should work just fine.

Have you tried the avr usb lib? With the help of that software you 
don't even need the USBN9604 chip...

Hope that helps ;)
- Soeren

On Fri, Feb 20, 2009 at 01:39:13PM +0100, Sven Klomp wrote:
> Hi,
> I want to connect my Atmel microcontroller (ATmega32) to the Freerunner. The 
> ATmega uses a USBN9604 chip as USB interface. What would be the easiest way to 
> let the Freerunner communicate with the microcontroller?
> I could simulate a USB-RS232 converter on the ATmega. In this case, I could 
> use the usb-serial module of the kernel. Do the actual Openmoko kernels ship 
> with it?
> However, I only want to send few control bits. Are there some easier methods? 
> Libusb has a nice and easy API, but I shrink from compiling it for the 
> Freerunner.
> Is it possible to control USB from Python without any additional libraries or 
> kernel modules?
> Sven
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> devel at lists.openmoko.org
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