On Wednesday 24 August 2011 06:06:52 Angelo Dureghello wrote: > Hi, > > i did a step forward, genromfs was old: > > http://mailman.uclinux.org/pipermail/uclinux-dev/2011-February/002993.html > > Now i have i2c-0 device created. > > i2c-core: driver [rtc-ds1307] registered > i2c /dev entries driver > i2c-core: driver [dev_driver] registered > TCP cubic registered > NET: Registered protocol family 17 > drivers/rtc/hctosys.c: unable to open rtc device (rtc0) > > I also created rtc0, i don't understand why it cannot be open.
Hi Angelo, Could you give some details about your hardware setup? Is the 5307 a Freescale 5307evb or a custom board? And is the ds1307 built on the board or external? And could you post your full .config? The first thing to check is if the i2c bus has the proper pullups. Some evb's have them built in, some have jumpers to enable or disable them and some dont have them at all. Also, IIRC, the ds1307 is 5 volt only, so if your cpu is running at 3.3v or 1.8v, you'll need some sort of level shifter on the i2c signals. _______________________________________________ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
