[Tinyos-devel] I2C and SPI sharing

[Max CORTIANA]

Hi

I'm working on TeosB and I have a problem when sharing I2C and SPI, used 
by the cc2420 Radio.
The channel is shared correctly until SPI tries to access the channel 
while the channel is busy with I2C.
I see the following steps are:

   1. Resorce is requested by SPI.
   2. I2C finishes its operations and releases the shared resource
      (MSP430UsartShare0) ;
   3. SPI receives the granted event.
   4. Radio tries to send a byte through SPI
   5. The byte isn't sent.
   6. SPI  loops inside a while, waiting for an interrupt which will
      never arrive. 
   7. Since a task i locked in an infinite loop, the mote is like dead.


Any suggestion?

Thanks
- Max