Flashign on a custom PCB board

RE: Flashign on a custom PCB board

pltv — Wed, 22 Jul 2015 00:19:35 GMT

@hungbui Actually i could detect the custom board on nRFGO earlier but it looks like the program was not loaded properly. The board i am using is based on nf51822 while the development kit is based on nf51422.

I have posted another detail question here on this issue

https://devzone.nordicsemi.com/question/45674/custom-board-keil-configuration/

I would appreciate if you can look at this and let me know what you think

RE: Flashign on a custom PCB board

Hung Bui — Tue, 07 Jul 2015 08:58:35 GMT

@prasanna: I saw that you have accepted the answer as correct. I assume that you managed to program the board ? You won't see the board's name up in the nRFGo Studio, but you will see the chip content when you click on the DK board that you use to program the chip.

RE: Flashign on a custom PCB board

pltv — Mon, 06 Jul 2015 14:38:07 GMT

I found a link with some level of detail inputs here

See below pics on how my board looks and how i have managed to tape wires to be able to connect to the board.

www.dropbox.com/.../AAA8wtKRD9BNC-fIqGv2Jpica

www.dropbox.com/.../AADvWVq1Wpj0OOc9Y_j6riuca

So if i manage to link up the board like this then i am able to see the board detected in nrfGo studio.

RE: Flashign on a custom PCB board

Hung Bui — Mon, 06 Jul 2015 11:15:48 GMT

@prasanna: Could you post a photo of the board ? Depends on the connector header on the board you would need to use appropriate connector for it. Then you do the same connecting as you did with your beacon kit from us.

RE: Flashign on a custom PCB board

pltv — Sat, 04 Jul 2015 01:13:46 GMT

Thanks. Can i ask you to point out how this connection is actually made. I am a software programmer with very little knowledge about electrical components of the PCB. I would appreciate a dummy's guide to these connections. From whatever i have read from other posts i am assuming that i can connect the external PCB to the nrf51822 Development Kit. I actually did that with the beacon kit from Nordic and it worked perfectly fine. That was done using a cable from tag-connect. I am a bit confused on how to make the connection with this new board i have.

RE: Flashign on a custom PCB board

Nguyen Hoan Hoang — Fri, 03 Jul 2015 11:32:21 GMT

D: Data is your SWDIO

C: CLK is your SWDCLK

RE: Flashign on a custom PCB board

Wojtek — Fri, 03 Jul 2015 08:23:53 GMT

You can also check in nr51 datasheet where SWD pins are located on uC and check with multimeter if these pins are exposed somewhere on the board. Board is not that complicated... But Hung Bui's advice will probably be ok.

RE: Flashign on a custom PCB board

Hung Bui — Fri, 03 Jul 2015 08:08:09 GMT

@prasanna: I can't say for sure if it works because I don't have the schematic. But you can try to connect the SWD programmer to your board as follow: The left is the pin on the board, the right is the pin on the programmer.

G -> GND

V -> VDD (you should provide 3.3V to this pin as well, or just put the battery in.)

D -> SWDIO

C -> SWDCLK.

RE: Flashign on a custom PCB board

pltv — Fri, 03 Jul 2015 03:35:16 GMT

I hav the following not from the manufacturer on the pins on the board

G: Ground;
V: Vcc, 3.0V;
D: Data;
C: CLK;

Will this be of any help in further guiding us on how to connect this board to the DK?

RE: Flashign on a custom PCB board

Hung Bui — Mon, 29 Jun 2015 11:33:02 GMT

@prasanna: Maybe there could be something wrong with the file. What I am seeing here is just 2 pages, one page with the PCB layout of the top side, and another with the PCB layout of the bottom side. What I need is the schematic.

With just the PCB layout it's not enough to know how the pins are connected.

RE: Flashign on a custom PCB board

pltv — Fri, 26 Jun 2015 17:11:44 GMT

@hungbui i have attached the schematic diagram i got in my post. Do we need more than this?

RE: Flashign on a custom PCB board

Hung Bui — Fri, 26 Jun 2015 11:59:51 GMT

@prasanna: Please upload your schematic. To be able to program the nRF51822 you to connect 4 pins to the programmer :

GND
SWDIO
SWDCLK
VDD (as reference, you still need to provide power to the board)