Comments (3)
...and you're also recieving the 'incoming data crc8 mismatch' message on the serial monitor?
sounds like you have a bad connection / wrong connection (less likely) / noise problem.
try twisting another wire around each data wire (mosi, miso, clk) and connecting those wires to ground.
if you can get your hands on an osciloscope, you should be able to see if the lines are noisy.
maybe it's a bad level shifter?
make sure you have a good ground connection between the wheelbase and your circuit.
I sometimes get that issue with buttons being pressed frantically. I'm still using a breadboard here and by inserting the wires better into the breadboard I usually get it sorted.
from arduino_fanatec_wheel.
Hi, thanks for the quick response! After some testing today I can say your "noise" theory is probably true. I made second testing circuit with different arduino and different level shifter and after turning on, serial monitor showed about 50% crc8 mismatch messages mixed with what looked like 3 hex numbers (I assume those were correct messages). I was also using laptop running on baterry at that time, which might have helped ... ? No buttons were being pressed randomly. The wheel appeared as a Porsche 918 RSR steering wheel.
Anyway, I'll make a new properly soldered connector and probably even custom PCB to fit arduino and level shifter and try to make some sort of shielding for data wires.
I also have access to an oscilloscope at work, so if the new circuit fails, I'll check what's going on with those data lines.
Good news is, after installing new beta driver and wheel + motor firmware and connecting the new testing circuit, the calibration issue was gone. I just had to calibrate wheel center using the new driver (version 356)
from arduino_fanatec_wheel.
there should be a lot less CRC8 errors now that I fixed a few SPI communication bugs. don't forget to update your layout.
from arduino_fanatec_wheel.
Related Issues (20)
- Proposed additions to the schematics HOT 8
- Two cables Connector HOT 2
- Problem with Fanatec DD1 Base HOT 3
- Compatibility with CSL DD HOT 28
- Understanding the MOSI buffer HOT 2
- Teensy 3.2 HOT 7
- Which one is the correct schematic? Easy to understand or simplified? HOT 8
- >Implement Buttons and encoders HOT 3
- Holding pressed any button it operates repeatedly HOT 7
- The steering wheel randomly enters menu mode HOT 1
- Using PIC Microcontroller
- Other wheels reference IDs HOT 3
- CSL DD wheel base connects and discconects with wheel attatched. HOT 13
- CRC8 Mismatch and low voltage on L1/H1 pins HOT 4
- Wheel keeps disconnecting in Control Panel and no Buttons etc. work HOT 2
- Problem to convert from STM32F4
- Confirmed working: CSL GT Pro, Arduino Uno and level shifter HOT 4
- Just to thank you for your work.
- Cannot make it work with CSL DD HOT 3
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