Antonio, I have a guess what can be wrong. I assume you're using either the Atm128AdcSingle or Atm128AdcMultiple interface. While the dataReady event is slightly different in these two interfaces, in each cases it has a bool parameter, not an error_t. Notice that the value of the SUCCESS constant is 0, which happens to be the value of FALSE. That is, when you think that the dataReady event came back with a SUCCESS, it is, in fact, coming back with a FALSE.
Let me know if this was the issue. Janos On Mon, Aug 29, 2011 at 7:37 AM, antonio rosa <[email protected]> wrote: > Hello all, > I have a problem with the IRIS platform. When I do readings of different > channels of ADC reading the microcontroller's internal voltage (channel > ATM128_ADC_SNGL_1_23) the event (dataReady) is SUCCESS but the reading > (data) is erroneous. I have cheked that if I make two consecutive readings > of the same channel ADC, everything is correct. However, if I previously do > a reading from a channel different than used to read the internal voltage > and then read channel internal voltage, the value returned by the adc is > wrong (superior the voltage of the batteries). > > In TinyOS.1.x with Moteworks, doesn't ocurrs this problem. I have reviewed > the TinyOS-2 driver 1.1 for the module Adc Atmega1281, and I think the > problem may be related to reading different channels that aren't managed > properly. > > Regards, Antonio Rosa. > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
