Hi all, Thanks for all the help with Digital output voltage. I recently moved from 1.1.13 version to 1.1.15 version and now the same code does not work. I looked in to the hardware.h file under telosb platform, it says TOSH command are not used anymore. Instead use the commands like P2OUT = 0x01 to toggle the output. I tried this, and unfortunately it does not work either. I am still debugging the code, but would like to know any thoughts or facts from the members here.
Also can anyone help me with using MSP430GeneralIO interface ? Can this be used with TelosB Platform or does it needs some changes in the makerules or download some more binary utilities ? I appreciate the effort. Hope to hear from someone soon. Thanks, Pinky Tejwani. On 2/15/06, Robert Szewczyk <[EMAIL PROTECTED]> wrote: > Look at the page 29 of MSP430 datasheet -- it has the data about how > much current the MCU can source and sink through the IO pins > (http://focus.ti.com/lit/ds/symlink/msp430f169.pdf). > > Rob > > On 2/15/06, Michael Schippling <[EMAIL PROTECTED]> wrote: > > also, once all that is settled, make sure that you are not > > trying to draw too much current from the pin to turn on your > > sensor. The ATMEGA specs say 40mA max, I don't have the telos > > chip specs but it's probably similar. Anyway I think that is > > pushing it, I'd be more comfortable with <10mA. > > MS > > > > Matthew J Whelan wrote: > > > The output voltage of the GIO set high should be the about same as your > > > battery voltage. Do you have the P2.0 pin setup right? > > > P2SEL &= ~(0x01); //Sets P2.0 to GIO > > > P2DIR |= 0x01; //Sets P2.0 to output > > > P2OUT |= 0x01; // Sets P2.0 high > > > What about the P6.3 (since the ADC3 input is wired to pin 10 as well)? > > > P6SEL &= ~(1<<3); //Sets P6.3 to GIO > > > P6DIR |= ~(1<<3); //Sets P6.3 to input > > > > > > Is there some significant load on your signal which is causing it to > > > drop in voltage? > > > > > > Regards, > > > Matt > > > > > > > > > [EMAIL PROTECTED] wrote: ----- > > > > > > To: [email protected] > > > From: pinky tejwani <[EMAIL PROTECTED]> > > > Sent by: [EMAIL PROTECTED] > > > Date: 02/15/2006 02:21PM > > > Subject: [Tinyos-help] GIO -- Output Voltage. > > > > > > Hello All, > > > I have written a code for bit-banging using the TOSH macros for > > > General I/O pins. > > > Platform - TelosB/TmoteSky > > > The voltage that I get on the pin 10 of U2 connector is 1.3 or 1.5 V > > > maximum. > > > > > > The aim of the exercise is to use one of the digital output pins to > > > switch on/off a sensor. Can someone tell me if there is a way to make > > > the digital output voltage to be above 2 V ? > > > ( I am trying to avoid using an external circuit to do that ) > > > > > > Hope to hear from someone. > > > > > > Thanks, > > > Pinky Tejwani. > > > Clemson University. > > > > > > _______________________________________________ > > > Tinyos-help mailing list > > > [email protected] > > > > > > https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > > > > > > > > > > > > ------------------------------------------------------------------------ > > > > > > _______________________________________________ > > > Tinyos-help mailing list > > > [email protected] > > > https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > > _______________________________________________ > > Tinyos-help mailing list > > [email protected] > > https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > > > > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > -- Pinky Tejwani Graduate Student Clemson University [EMAIL PROTECTED] #864-650-7835 _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
