Uaefi EGT max31855 SPI3

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Larspars
Posts: 7
Joined: Fri May 13, 2022 6:36 pm
Github Username: larsnergard

Uaefi EGT max31855 SPI3

Post by Larspars »

Hi all petrol heads

I'm trying to get EGT to work on Uaefi, but I cannot get a reading form the sensor. Anyone able to help? I have the hardware on board for it to work. See picture. Image

The schematic states SPI3 with CS pin PA15 Image

Tuner studio settings Image

Cheers
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Larspars
Posts: 7
Joined: Fri May 13, 2022 6:36 pm
Github Username: larsnergard

Re: Uaefi EGT max31855 SPI3

Post by Larspars »

I have made some progress. Added some code and now it is working.

Image

Image

Image
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AndreyB
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Re: Uaefi EGT max31855 SPI3

Post by AndreyB »

Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
chili023
Posts: 22
Joined: Fri Jul 03, 2020 2:41 pm
Location: Berlin Germany

Re: Uaefi EGT max31855 SPI3

Post by chili023 »

Hello,
How did you activate SPI3?
We have a microrusEFI and want to use 3x MAX31855.
I cannot set the pins in Tuner Studio for SPI3 nor enable SPI3.
image.png
If I enable SPI4 the message says it is not supported on the RusEFI.

I soldered test leads to PC10 PC12 and PB9 on J4. How can I activate SPI and connect the MAX31855?
rusEFI soldered.jpeg
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