You need to use and configure the ADC in software using ADCC. If you do not use and configure the ADC, then the ports are output and low (contrary to what Steve wrote). When a port is not in use on the MSP430, it must be set to output and low (gnd) to minimize current leakage. By configuring the pin using ADCC, it is automatically reconfigured to be input and not drive the signal.
This is documented in detail at: http://www.moteiv.com/community/Connecting_External_Sensors -Joe On 6/26/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
Hi i use tmote and tinyos 1.1 ; i must use ADC to sample a voltage on Capacitor but i have a problem. In fact i use ADC3 and GND(of ADC) but this pin result short-circuit when tmote is on. This is a big problem for me because the capacitor discharge and i can't mesaure the really value. How can i resolve my problem?? Thanks ------------------------------------------------------ Leggi GRATIS le tue mail con il telefonino i-mode™ di Wind http://i-mode.wind.it/ _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
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