Hi,
I'm running the "Debian 9.3 2018-01-28 4GB SD IoT" image and added a
PCF8523 RTC to the i2c2 bus. Specifically, I am working with this board
from Adafruit:
https://www.adafruit.com/product/3295
Everything works fine manually:
config-pin P9_19 i2c
config-pin P9_20 i2c
echo pcf8523 0x68 > /sys/class/i2c-adapter/i2c-2/new_device
[ 473.652063] rtc-pcf8523 2-0068: rtc core: registered rtc-pcf8523 as
rtc1
[ 473.663924] i2c i2c-2: new_device: Instantiated device pcf8523 at
0x68
hwclock -w -f /dev/rtc1
hwclock -r -f /dev/rtc1
2018-02-20 22:04:30.521921+0000
I wanted to have it come up automatically by using the
BB-I2C2-PCF8523-00A0.dts as mentioned in this thread, but that causes
'config-pin' to stop working for setting up my other pins. I think this has
something to do with the universal overlay now being disabled? What is the
correct way to get all this working together?
Thanks.
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