E73-2G4M04S1B Chengdu Ebyte BLE module

[AimHigh]

Hi 

Good day!

I am new to this BLE module. I have worked out an application using nrf52 DK (nrf52832 SoC )  and now I want to use Ebyte module E73-2G4M04S1B which is based on nrf52832 module. My question is How do I program this module using the nrf52 DK? I appreciate the help in this regard.

Thank you

Aim High

[Stian Røed Hafskjold]

You have to use the SWD interface to program the module.The nRF52 DK can be used as the debugger.

If you have a 10 pin SWD header soldered on the PCB containing the Ebyte module, you can connect a SWD cable from debug out port on the nRF52DK to the Ebyte module PCB.

If not, you have to wire the SWDCLK, SWDIO, VTG and GND DETECT pins (P20 header) on the DK to the module. VTG is the voltage reference for the debugger, so connect this to VDD on the module, and GND DETECT is just normal GND. Then you can flash using the DK as normal. The DK will detect the external module automatically.

[AimHigh]

Hi,

We do not have the SWD header on BLE module PCB (Please share documentation that has info about the SWD header). 

I tried the second method of connecting SWDclk, SWDIO and VTG and GND detect from Pin20 header on DK board to module on the pcb. Do i need to power the module externally and connect the VTG from the DK to module at VDD?

It does not get detected on the nrfgo studio software. What could be the potential problem here?

 

Where can i find the documentation on connecting and programming the external modules?

[Stian Røed Hafskjold]

Yes, the external board needs to be powered. The VTG does not provide power to the external board, it only senses the voltage on the external board. You can use an additional wire from the VDD header, P1, on the DK to power the external board.

Documentation is here: https://infocenter.nordicsemi.com/topic/ug_nrf52832_dk/UG/nrf52_DK/hw_debug_out.html?cp=4_2_4_5_9

[AimHigh]

Ok, Thank you. I can program the external BLE module.

The external board is powered using VDD from the DK and VGT is connected to the VDD pin of external PCB. 

Have a good one!.