DWM1001 shows only bridge in web

Wireless Connectivity Ultra-Wideband
1

I’ve made local-positioning system with mqtt protocol to dwm1001 webpage, generated by the raspberry. But the only info about the modules is for the bridge - there are no anchors or tags.
When I use ‘dmesg’, get the following thing:
[ 622.601999] dwm spi0.0: invalid SPI xfer cnt=0 length=255
[ 622.602010] dwm spi0.0: decode TLV failed, error 15 t:255 l:13
[ 622.602016] dwm spi0.0: dwm_node_id_get failed, error -12
[ 622.602021] dwm spi0.0: reseting bridge
[ 622.632045] dwm spi0.0: invalid SPI xfer cnt=0 length=255
[ 622.632058] dwm spi0.0: decode TLV failed, error -1 t:255 l:255
[ 622.632065] dwm spi0.0: dwm_reset failed, error -14
[ 622.632069] dwm spi0.0: bridge can’t be initialized, error -14
[ 626.032582] dwm spi0.0: bridge ok
[ 656.471475] dwm spi0.0: bridge not responding
[ 656.471508] dwm spi0.0: reinitialize …
[ 659.872588] dwm spi0.0: bridge ok
[ 690.391476] dwm spi0.0: bridge not responding
[ 690.391510] dwm spi0.0: reinitialize …

But in the UART shell I get everything correct. The module finds the anchors without a problem.

So what can be the problem and how to fix it?

2

Hi Evgeny,

have you been able to fix the issue?

The errors indicate that the SPI communication between the DWM1001 and Raspberry PI is not working correctly.

There have been a couple of topics related with this issue, e.g.:

The issue was caused mostly by incorrect soldering of the header connector on the DWM1001-DEV. Please check if it is the case.

Cheers, TDK