On Sun, Apr 21, 2013 at 1:06 PM, Maryam Jalalitabar <[email protected]>wrote:
> Hi everyone, > > I want to use a high signal on the telosb to trigger the pin 34 on the > CC2420 chip which is Radio_SO. > What exactly are you trying to do? Radio_SO is SPI out which is the output from the CC2420 chip and is part of the SPI bus. It is input to the msp430. So I don't understand what you are trying to trigger. > Radio_SO is also attached to the MSP430 on pin 30 which is P3.2/SOMI0. > Exactly. It isn't being used as P32 (which is just digital i/o (crappy TI name). It is being used as SlaveOutMasterIn as part of the SPI interface. > > My idea is using the high signal as an external hardware interrupt for the > telosb. > For what? Moot anyway because you can't do it. Only Port 1 and Port 2 can generate interrupts. > > I found HplMsp430GeneralIOP component. It provides two interfaces that > I think I can use: > > interface > HplMsp430GeneralIO<http://www.tinyos.net/tinyos-2.x/doc/nesdoc/telosb/ihtml/tos.chips.msp430.pins.HplMsp430GeneralIO.html> > as *Port32;* > interface > HplMsp430GeneralIO<http://www.tinyos.net/tinyos-2.x/doc/nesdoc/telosb/ihtml/tos.chips.msp430.pins.HplMsp430GeneralIO.html> > as *SOMI0* > * > * > There is another component HplMsp430InterruptC. It provides a number of > interfaces to enable or disable interrupt on some ports[10-27]. > > Port 32 is general I/O but it can not be used for interrupt(it is not > between the range of 10 and 27). Is this correct? > Nothing magic about 10 to 27. P10 is port P1.0 etc. so P10 - P17 and P20-P27 are Ports 1 and 2. By definition (from TI) only P1 and P2 can be used to generate interrupts. > Thanks. > > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > -- Eric B. Decker Senior (over 50 :-) Researcher
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