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Subject: Chronodot on RPI
From: Waitman Gobble <gobble.wa@gmail.com>
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Anyone have luck with the ChronoDot (D3231) on Raspberry Pi?
I have a RPI B+ (rev 1), tried with HEAD r277133 and r279488 without luck.


# uname -a
FreeBSD ARTiming150228 11.0-CURRENT FreeBSD 11.0-CURRENT #0 r277133:
Tue Jan 13 20:18:52 PST 2015
waitman@rpidev.waitman.net:/usr/home/waitman/crochet-freebsd/work/obj/arm.armv6/usr/src/sys/TMRDEV
 arm

# uname -a
FreeBSD raspberry-pi 11.0-CURRENT FreeBSD 11.0-CURRENT #0 r279488: Sun
Mar  1 10:27:33 PST 2015
waitman@rpidev.waitman.net:/usr/home/waitman/crochet-freebsd/work/obj/arm.armv6/usr/src/sys/TMRDEV
 arm


# dmesg | grep iic
iichb0: <BCM2708/2835 BSC controller> mem 0x205000-0x20501f irq 61 on simplebus0
iicbus0: <OFW I2C bus> on iichb0
iic0: <I2C generic I/O> on iicbus0
iichb1: <BCM2708/2835 BSC controller> mem 0x804000-0x80401f irq 61 on simplebus0
iicbus1: <OFW I2C bus> on iichb1
iic1: <I2C generic I/O> on iicbus1


a) tried the DS1307 program from Vadim Zaigrin, without success.

b) tried i2cscan from Winston Smith,

only get errors. ie,

ioctl(I2CRDWR) failed: Input/output error

I have VCC pin 1, GND pin 6, SDA on 3 and SCL on 5.

trying /dev/iic0 and /dev/iic1

Any help/suggestions apprecitated.

Thank you,


-- 
Waitman Gobble
Los Altos California USA
510-830-7975