Manta M8P ADXL345 SPI1 Issues

[NiLMoXiE]

Has anyone managed to get an ADXL345 working on SPI1 on the Manta M8P?

I have set the adxl345 in the printer.cfg in Klipper and connected the the sensor as below but the MCU crashes on boot and reports that it cannot connect to moonraker.

[adxl345]

spi_bus: spi1

cs_pin: PB15

ADXL345 is wired as below:

SCL – PA5 SCK

SDA – PA7 MOSI

SDO – PA6 MISO

CS – PB15

VCC – 3.3V

GND – GND

In this state the ls /dev/serial/by id/ returns a no such device or folder exists.

If I disconnect the ADXL345 from the board it boots with no issues.

Can anyone shed any light on this at all?

Edited December 21, 2022 by NiLMoXiE
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[BIQU info]

Hello, please view this link, hope that will be helpful.

https://github.com/bigtreetech/Manta-M8P

[MrBiscuit]

Here's how I got it working on my Manta M4P. The cs_pin for the M8P may be different. I wired the M4P SPI1 connector directly to the ADXL345 board using a 6-wire cable. What helped was looking at the actual schematic for the board, which has the signal names on the SPI1 (J58) connector.

In /boot/BoardEnv.txt make sure you have the spidev1.1 overlay enabled.

printer.crt:

[adxl345]
cs_pin: PD9
spi_bus: spi1

Wiring of the SPI1 connector to the ADXL345:

SPI1 (J58) Pins 1 & 2: Unconnected

SPI1 (J58) Pin 3 -> ADXL345 CS

SPI1 (J58) Pin 4 -> ADXL345 SCL

SPI1 (J58) Pin 5 -> ADXL345 SDA

SPI1 (J58) Pin 6 -> ADXL345 SDO

SPI1 (J58) Pin 7 (3V3) -> ADXL345 VCC

SPI1 (J58) Pin 8 -> ADXL345 GND

[Patrick M]