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bigtreetech / BIGTREETECH-SKR-V1.3

32bit board with LPC1768, support marlin2.0 and smoothieware, support lcd2004/12864, On-board TMC2130 SPI interface and TMC2208 UART interface no additional wiring is required
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Which pins are i2c pins on the SKR 1.3? #561

Open Domush opened 2 years ago

Domush commented 2 years ago

The LPC1768 has two sets of i2c pins: .0/.1 and .27/.28, but I'm not seeing where it's documented which SKR 1.3 pins these map to.

Can anyone help?

radek8 commented 2 years ago

https://github.com/bigtreetech/BIGTREETECH-SKR-V1.3/blob/master/BTT%20SKR%20V1.3/hardware/SKR-V1.3-SCH.pdf

radek8 commented 2 years ago

image

Domush commented 2 years ago

image

Thank you. I've been trying to get those pins to work, but to no avail. Now I'm wondering if my i2c port is DOA, because I can't even scan for devices using those pins without the board freezing. :(

radek8 commented 2 years ago

What do you connect to the i2C port?

radek8 commented 2 years ago

I have a SKR1 board. 4. I connected an eeprom to this port and it works great.

radek8 commented 2 years ago

If that's all, can you close the ticket?