DWM1001 minimum connectivity for serial comms

Wireless Connectivity Ultra-Wideband
1

So I built a little breakout board for the DWM1001 and I have only connected
3V3 (11)
GND (12)
TTL RX to UART_TX(20)
TTL TX to UART_RX(18)

I then attach a terminal (teraterm) at 115200 and hit the Enter key twice within a second but I don’t get a response. Are there any other pins that need to be tied?

I can see the device via BT when it is powered up, so it is running correctly.

Thanks,

DougM

2

Hi Doug,

There is more than 1 ground on the DWM1001.

Please see the castellation in the doc below :

https://www.decawave.com/sites/default/files/dwm1001_module_schematics_vd1.pdf

Have you connected all of them ?

Thanks,
Regards
Yves

3

@Yves

[color=#333333]Yes, the breakout board has a common ground plane and I beeped all the GND pins to make sure they are connected.[/color]

[color=#333333]Thanks,[/color]

4

Hello, have you solved your problem? I have the same problem now.

5

No, never did. Moved on to a different solution.

6

I saw in the website below that someone can use the USB to TTL module to connect to the DWM1001 and enter the shell mode. But I can’t.

8

Hi Doug,

It looks like you have swapped the VCC and GND lines.

I have used this and it worked for sure:
2: SWD_CLK
3: SWD_IO
12: VCC
34: GND
18: UART_RX - connect to e.g. RPI UART TX
20: UART_TX - connect to e.g. RPI UART RX

Cheers,
TDK