I have a Pi 4b, 8bg board. When I install the clock on the first three pins from the top, the pi won't boot. I see both the red and green pi leds light up on power up. A short time later the green goes away, with only the red one shining, but the pi does not boot up. I've tested continuity on the 6 pins and none of them are shorted to the others, other than the two 5V pins. I did prepare the pi for the i2c hookup in the /boot/config.txt file and added the module to the /etc/modules file (i2c-dev). Running i2cdetect -y 1 does not detect any i2c modules.
Any idea why this is not working?
Thanks,
ted
Followup. Looked at the kern.log for the failed boot and received:
rtc-ds1307: probe of 1-0068 failed with error -121
but I have a ds3231. Here is the line from /boot/config.txt
dtoverlay=i2c-rtc,ds3231
Why would the kernel be looking for a ds1307? What am I missing.
Here is what I'm running:
Linux camera-server 5.10.94-v7l+ #1518 SMP Thu Jan 27 14:54:16 GMT 2022 armv7l GNU/Linux
Thanks, again.
ted
PiRTC DS3231 won't allow pi to boot
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- tfrohling
- Posts: 9
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Re: PiRTC DS3231 won't allow pi to boot
The problem is apparently fixed.
I found that I had an extra dtparam line which probably conflicted.
Fixed with:
dtparam=i2c_arm=on
#dtparam=i2c_vc=on
Sorry for taking up your time.
ted
I found that I had an extra dtparam line which probably conflicted.
Fixed with:
dtparam=i2c_arm=on
#dtparam=i2c_vc=on
Sorry for taking up your time.
ted
Please be positive and constructive with your questions and comments.