Thanks Eric for your answer. Now the things are clear to me. Kind Regards
On 29 February 2012 11:52, Eric Decker <[email protected]> wrote: > > > 2012/2/29 Mubashir Rehmani <[email protected]> > >> Hi Angré, >> >> Yes, all i want is to have output 0 or 1 on pin 10. If i clearly >> understood, port 6.3 is pin 10 (ADC3) of expansion connector U2? >> > > Should be. You will have to program Port 6.3 to be digital I/O rather > than connect it to the ADC subsystem. P6SEL. You should study the pin > schematic but it looks like to me that if you want digital i/o you want > P6.3SEL set to a 1. > > The schematic and description you were quoting before was from a tote sky > which while very close to a telosb does have some differences. Also from > what I have seen there is a 2004 and a 2005 version of the TelosB. The > 2005 version doesn't have the resistor placement nor the connections to > GIOn. > > Which adds to the confusion. > > > >> >> Kind Regards >> >> >> 2012/2/29 André Rodrigues <[email protected]> >> >>> ** >>> Hi >>> >>> If all you want is to output 0 or 1 on pin 10, I would say that you just >>> have to use port 6.3. In that case you do not neet to use any resistors. >>> >>> But Eric could confirm (or not) my opinion. >>> >>> Next, study one of the available device drivers to learn how to select >>> the port for IO and how to set/clr the bit. >>> >>> Regards, >>> >>> André >>> >>> >>> ----- Original Message ----- >>> *From:* Mubashir Rehmani <[email protected]> >>> *To:* Eric Decker <[email protected]> >>> *Cc:* [email protected] >>> *Sent:* Wednesday, February 29, 2012 9:23 AM >>> *Subject:* Re: [Tinyos-help] ADC port >>> >>> Thanks Eric for your answer. >>> >>> In fact, in the telosb motive data sheet, >>> >>> http://moss.csc.ncsu.edu/~mueller/rt/rt11/readings/projects/g4/datasheet.pdf >>> It is written on page 24 that *"If expansion pin 10 (ADC3) is used for >>> digital I/O instead of analog inputs, R14 must be populated with a 0 ohm >>> resistor to enable the pin for digital I/O (GIO0) on the microcontroller. >>> R16 must be populated with a 0 ohm resistor to enable GIO1. R14 and R16 >>> are located on the top side of Telos between the USB controller and the >>> radio."* >>> >>> So, what i want to do is that i want to use the expansion pin 10 (ADC3) >>> and control the I/O signals through tinyos. More precisely, i want to >>> attach an electronic switch, which enables or disable an external device >>> (antenna) with the signal i provide it to this expansion pin 10 (ADC3). Do >>> you have any idea how to achieve this? >>> >>> Kind Regards >>> >>> On 29 February 2012 10:16, Eric Decker <[email protected]> wrote: >>> >>>> >>>> >>>> On Tue, Feb 28, 2012 at 11:58 PM, Mubashir Rehmani < >>>> [email protected]> wrote: >>>> >>>>> Dear All, >>>>> >>>>> I want to control the I/O of the 10-pin extension connector of (U2) of >>>>> the Telosb mote. In fact, i want to use ADC3 and control its power level >>>>> in >>>>> order to connect the digital switch with it. Can anyone tell me how i can >>>>> control the voltage level of this ADC3 from the tinyos code? >>>>> >>>> >>>> you aren't understanding how this ADC stuff really works...... >>>> >>>> ADC3 is an input to the ADC subsystem so it is nonsensical to talk >>>> about controlling the voltage level from the tinyos code. >>>> >>>> I suggest that you read the TI msp430f1611 manual in conjunction with >>>> the moteiv telosb schematic to understand what hardware is provided and how >>>> it works. >>>> >>>>> >>>>> Please refer the pin diagram of the datasheet (page 23) >>>>> >>>>> http://moss.csc.ncsu.edu/~mueller/rt/rt11/readings/projects/g4/datasheet.pdf >>>>> >>>>> Kind Regards >>>>> >>>>> -- >>>>> Mubashir Husain Rehmani >>>>> >>>>> >>>>> >>>>> _______________________________________________ >>>>> Tinyos-help mailing list >>>>> [email protected] >>>>> >>>>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >>>>> >>>> >>>> >>>> >>>> -- >>>> Eric B. Decker >>>> Senior (over 50 :-) Researcher >>>> >>>> >>>> >>> >>> >>> -- >>> Mubashir Husain Rehmani >>> >>> >>> ------------------------------ >>> >>> _______________________________________________ >>> Tinyos-help mailing list >>> [email protected] >>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >>> >>> >> >> >> -- >> Mubashir Husain Rehmani >> >> >> > > > -- > Eric B. Decker > Senior (over 50 :-) Researcher > > > -- Mubashir Husain Rehmani
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