Sep 18, 2019
02:28 PM
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Sep 18, 2019
02:28 PM
Hey,
I want to be able to use 3.3V logic on my I2C lines of CY8Ckit-059, however I still want to be able to have my KitProg plugged in and get data from it and continue to be able to program my PSOC. Is this possible? How do I do it?
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PSoC 5LP
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Sep 18, 2019
11:13 PM
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Sep 18, 2019
11:13 PM
Hi,
Note: Dear /odissey1-san, please correct me if I'm wrong
SDA pin and SCL pin are configured as open-drain, so it will not be driven to High (5V).
So "IMHO", as far as you connect only SDA, SCL and GND to CY8CKIT-059 and
you pull-up SDA and SCL lines with 3.3V, the 3.3V logic group will be fine and
PSoC can access I2C without destroying the 3.3V logic group.
moto
4 Replies