[Tinyos-help] Vref to Read ADC port

2012-03-16 Thread Alex FP
Dear all. In order to read a ADC channel i.e. ADC6 (Port6.6) using a Vref external,needed for proper ADC quantization, is necessary connect a battery source to the port 1.2 in a telosb mote? or Is possible to use an other port? .. new Msp430GpioC() as VoltageRef; .. VoltageRef -

Re: [Tinyos-help] Vref to Read ADC port

2012-03-16 Thread Michael Schippling
I believe the Vref is permanently attached to the battery. There may be ways to use an internal ref or another input via software, but I'm not that familiar with the MSP chip. MS Alex FP wrote: Dear all. In order to read a ADC channel i.e. ADC6 (Port6.6) using a Vref external,needed for