Hi, Some quick answers to your questions: - Pins labeled with PAx, PBx, etc. of the 51-pin connector go directly to the pins of the microcontroller with the same name. The functions of those pins are described in the ATMega1281 datasheet. - Crossbow has some PCB designs which have a male 51-pin connector on one side, and a female on the other (e.g. stackable sensor boards). In that context, thru connect pins can be used for power lines, etc. - The PA5 pin of the 51-pin connector is connected to port A5 of the MCU. On the micaz, this also wired to the CCA pin of the CC2420 transceiver. You should not use this pin, because you can break the radio. - As far as I know, there's no other publicly available documentation.
Janos On Tue, Apr 5, 2011 at 4:20 AM, p lee <[email protected]> wrote: > Hi, > > I've read the MPR/MIB User's Manual and the Atmega1281 datasheet. I have > some questions regarding the Iris sensor interface. The pin descriptions in > Section 2.2.1 and Section 11.2.1 do not match. For example, in Section > 2.2.1, pin 7 is labelled as PA5 whereas in Section 11.2.1, pin 7 is labelled > as CC_CCA. Is there some documentation where I can find a description of > the pins shown in Section 2.2.1? Basically I wish to find out the meaning > of PAx, PBx, PEx, PGx, PWx, and the "Thru connect" pins. > > Also, Section 11.2.1 mentions that we shouldn't use some pins. Using the > nomenclature in Section 2.2.1, these pins are: PA5, PROG_MOSI, PROG_MISO, > SPI_CK, and RSTN. Why shouldn't we use these pins? > > > _______________________________________________ > 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
