Hello,

 

I have a problem with communicating with SPI device, namely accelerometer ADXL345

 

I quadripple checked connection and it seems to be fine, device shows in /dev/spidev0.0

 

I have also tested shorting miso and mosi and testing with spidev_test, here is the result:

 

spi mode: 0x0
bits per word: 8
max speed: 500000 Hz (500 KHz)
TX | FF FF FF FF FF FF 40 00 00 00 00 95 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF F0 0D  | ......@....�..................�.
RX | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  | ................................

 

 

My ArmbianEnv

verbosity=1
bootlogo=false
console=both
disp_mode=1920x1080p60
overlay_prefix=sun7i-a20
rootdev=UUID=88c29f81-18b8-4d41-a900-21ce6eba4664
rootfstype=ext4
overlays=spi0 spi-spidev
param_spidev_spi_bus=0
param_spidev_max_freq=12000000
usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u

 

I have also tried param_spidev_spi_bus - 0, 1, 2

But device just did not show up, it always stayed /dev/spidev0.0

 

I have also tried switching to some older kernel but no luck.

 

Is there any image to be known to work? I dont have much requirements so old stuff would be fine. Thanks in advance.

I vaguely remember having trouble with this myself. The 2mm pins were a problem too so I switched to a different board.

 

Are you absolutely sure you have shorted the right two pins?

 

One of those $10 USB logic analysers from eBay can be handy to see if the TX is actually TXing. They work with Pulseview from Sigrok.