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by AllenLey
Tue Jul 31, 2018 6:54 pm
Forum: Device Tree
Topic: Using RTC on CM GPIO 0 and 1
Replies: 4
Views: 1856

Re: Using RTC on CM GPIO 0 and 1

Thank you, PhilE. This has solved my issue.
by AllenLey
Tue Jul 31, 2018 5:58 pm
Forum: Device Tree
Topic: Using RTC on CM GPIO 0 and 1
Replies: 4
Views: 1856

Re: Using RTC on CM GPIO 0 and 1

Currently I only have one overlay - "dtoverlay=i2c-gpio,i2c_gpio_sda=0,i2c_gpio_scl=1". I removed the "i2c-gpio-rtc" after it didn't work, and I only had one at a time. I understand that this is a software bus and is different from a hardware I2C - this was done mainly for routing constraints when l...
by AllenLey
Tue Jul 31, 2018 2:38 pm
Forum: Device Tree
Topic: Using RTC on CM GPIO 0 and 1
Replies: 4
Views: 1856

Using RTC on CM GPIO 0 and 1

I'm using a custom CM3 carrier board and am using GPIO 0 and 1 for the I2C bus. I have a DS3231 and ADS1115 on the bus. After adding "dtoverlay=i2c-gpio,i2c_gpio_sda=0,i2c_gpio_scl=1" I can see both ICs in bus 3 using i2cdetect -y 3 I get: 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- ...

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