Cannot program custom board although connection is established

RE: Cannot program custom board although connection is established

Vlad — Fri, 03 Nov 2017 13:59:46 GMT

Hi Bjorn, thanks for the reply. I added a new topic with my issue:

devzone.nordicsemi.com/.../

Any help is welcomed! Thanks!

RE: Cannot program custom board although connection is established

kunal — Thu, 02 Nov 2017 14:48:30 GMT

hi sorry for the late Reply. it was a Hardware issue. I was using the wrong programming Adapter on my custom board. there was another MCU which was also ´CORTEX-M4'. So i could always detect the Cortex M4 and erase it but programming using KEIL-NORDIC was not possible. all Connections were all right. The 12pf for OScillator do not make any difference even if you remove them bcos they are just for the SLEEP clock. REading all the Forums i found 90% ist Hardware Problem.some wrong Connection or soldering.

RE: Cannot program custom board although connection is established

Bjørn Kvaale — Thu, 02 Nov 2017 12:23:59 GMT

Hi Kunal. Agree with Vlad, would be interesting to know if the situation resolved itself. @Vlad: do you have the exact same problem or is it slightly different? If it is different, you might get a quicker response if you post it as a new case. But if not, I'll happily take a look at the issue for you. :)

RE: Cannot program custom board although connection is established

Vlad — Thu, 02 Nov 2017 11:04:10 GMT

Hi, did you find a resolution to this problem? I have the same issue, the output is the same. I tried with JLinkExe and nRF Studio and didn't managed to erase the board yet. Thanks

RE: Cannot program custom board although connection is established

Bjørn Kvaale — Mon, 09 Oct 2017 12:47:58 GMT

Hi Kunal. You mentioned previously that the board worked with the 2x 12 pF capacitors, is that correct? Could you try using the 12 pF capacitors instead of the 10 pF capacitors? I had a look at the reference layout here and they recommend using 12 pF capacitors. I believe that by using different value capacitors, this affects the clock in your nrf52, which then could lead to the errors you mention (see link). So that could be the solution to your answer hopefully!

RE: Cannot program custom board although connection is established

kunal — Thu, 05 Oct 2017 13:24:08 GMT

Sorry for late Reply. Actually everything is fine with the Current measuring Pins P22. I wanted to ask you. can you please explain me why is the error in log.log file showing "JLinkARM.dll ReadMemU32 returned error -1". does that mean anything. Also I have 32 Khz Crystal with 2X 10pf capacitors around it. Is this value of Capacitor right and is it effecting the Programming ports?

RE: Cannot program custom board although connection is established

Bjørn Kvaale — Fri, 29 Sep 2017 12:37:32 GMT

If you have not cut the solder bridge, you can ignore my previous comment. You need to cut the solder bridge if you want to measure current (e.g. with the power profiling kit). When you are done measuring the current, you can either solder the solder bridge or put a jumper on P22. But again, if you have not cut the solder bridge, ignore my previous comment. All nrf52832 chips are delivered blank, so therefore you will need to program the board before you can use it.

RE: Cannot program custom board although connection is established

Matt — Fri, 29 Sep 2017 12:33:17 GMT

Can you try with another PCA10040 then?

RE: Cannot program custom board although connection is established

Matt — Fri, 29 Sep 2017 12:29:29 GMT

I believe Bjorn was asking whether you (kunal) have cut the solder bridge SB9 or not.

RE: Cannot program custom board although connection is established

kunal — Fri, 29 Sep 2017 11:47:50 GMT

Can you please tell me what is the necessity to cut the solder Bridge and attach Jumper? I am curious why is it necessary to Programm an external custom board before i try it .

RE: Cannot program custom board although connection is established

Bjørn Kvaale — Fri, 29 Sep 2017 10:32:15 GMT

Do you have a Power Profiling Kit? I got a tip from a colleague here at Nordic: If you have cut the PCB track shorting solder bridge SB9, have you made sure to attach a jumper cable to the two P22 pins? Also, have you seen this case?

RE: Cannot program custom board although connection is established

kunal — Fri, 29 Sep 2017 09:14:41 GMT

yes i have three custome boards all Show same Errors. and i had the board running 2 months ago. I only remember switching the Capacitors around 32 Khz oscillator to 10 pf from 12 pf..But i coulds still program the NRF52 that time. Now suddenly it is not allowing me to program.

RE: Cannot program custom board although connection is established

kunal — Fri, 29 Sep 2017 09:11:13 GMT

Hi, Actually i have the latest Version of the nrfjrog and Jlinks. I have attached the screenshot for that here. i cannot locate the log.log file. can u please send me the path where i can find it. thanks

RE: Cannot program custom board although connection is established

Bjørn Kvaale — Fri, 29 Sep 2017 08:50:43 GMT

Hey Kunal! I believe AmbystomaLabs is referring to this user guide. You can find a lot of good information on the Nordic infocenter. What is your current status? I will take a closer look at this case today.

RE: Cannot program custom board although connection is established

Matt — Tue, 26 Sep 2017 16:27:23 GMT

Your wiring diagram above more or less summarizes whatever I know about loading the N52 in a custom board :( Are you sure your custom board powers up fine? Can you ask your h/w buddies to check the custom board for you?

RE: Cannot program custom board although connection is established

kunal — Tue, 26 Sep 2017 15:41:55 GMT

Hi Matt. Can you please guide me because using P20 i am not able to Flash or erase the custom board. this is Keil result. JLink info:

DLL: V6.16a, compiled Jun 6 2017 12:42:51 Firmware: J-Link OB-SAM3U128-V2-NordicSemi compiled Jun 9 2017 14:57:23 Hardware: V1.00 S/N : 682655565

JLink Info: Found SW-DP with ID 0x2BA01477
JLink Info: Found SW-DP with ID 0x2BA01477
JLink Info: Scanning APs, stopping at first AHB-AP found.
JLink Info: AP[0] IDR: 0x24770011 (AHB-AP)
JLink Info: AHB-AP ROM: 0xE00FF000 (Base addr. of first ROM table)
JLink Info: CPUID reg: 0x410FC241. Implementer code: 0x41 (ARM)
JLink Info: Found Cortex-M4 r0p1, Little endian.
JLink Info: FPUnit: 6 code (BP) slots and 2 literal slots
JLink Info: CoreSight components:
JLink Info: ROMTbl[0] @ E00FF000
JLink Info: ROMTbl[0][0]: E000E000, CID: B105E00D, PID: 000BB00C SCS
JLink Info: ROMTbl[0][1]: E0001000, CID: B105E00D, PID: 003BB002 DWT
JLink Info: ROMTbl[0][2]: E0002000, CID: B105E00D, PID: 002BB003 FPB
JLink Info: ROMTbl[0][3]: E0000000, CID: B105E00D, PID: 003BB001 ITM
JLink Info: ROMTbl[0][4]: E0040000, CID: B105900D, PID: 000BB9A1 TPIU
JLink Info: ROMTbl[0][5]: E0041000, CID: B105900D, PID: 000BB925 ETM ROMTableAddr = 0xE00FF000
JLink Info: Setting AIRCR.SYSRESETREQ **JLink Warning: DHCSR.S_RESET_ST does not indicate reset occurrence. CPU may have not been reset...

Target info:

Device: nRF52832_xxAA VTarget = 3.300V State of Pins: TCK: 0, TDI: 1, TDO: 1, TMS: 1, TRES: 1, TRST: 1 Hardware-Breakpoints: 6 Software-Breakpoints: 8192 Watchpoints: 4 JTAG speed: 1000 kHz

Erase Failed! Error: Flash Download failed - "Cortex-M4" Flash Load finished at 17:39:56

RE: Cannot program custom board although connection is established

Matt — Tue, 26 Sep 2017 15:14:46 GMT

I've been using P20 to program the other boards (BC832 module and some other cheap breakout boards) fine.

RE: Cannot program custom board although connection is established

kunal — Tue, 26 Sep 2017 15:04:59 GMT

can you please attach the link to USer Guide you are looking at ??

RE: Cannot program custom board although connection is established

AmbystomaLabs — Tue, 26 Sep 2017 14:59:35 GMT

According to the user guide you may be able to short shield detect on P5 to ground to activate the port you are already wired up to. See page 18 of the user guide.

RE: Cannot program custom board although connection is established

AmbystomaLabs — Tue, 26 Sep 2017 14:54:08 GMT

That's not to say that it is impossible to use that port. It is just that it is designed for Arduino Shield boards. There is hardware to detect shield boards on the DK. There may be different software running on the DK when using the shield port. It discusses the debug ports on page 25 of the DK user guide. infocenter.nordicsemi.com/.../nRF52_DK_User_Guide_v1.2.pdf

RE: Cannot program custom board although connection is established

AmbystomaLabs — Tue, 26 Sep 2017 14:48:06 GMT

That is the point, custom boards go on P19. Only Arduino Shield boards go on the port you are using. You should be using P19.

RE: Cannot program custom board although connection is established

kunal — Tue, 26 Sep 2017 14:45:10 GMT

I do not understand what you mean. I am not using Arduino. I am just using a custom board with nrf52832 chip on it.

RE: Cannot program custom board although connection is established

AmbystomaLabs — Tue, 26 Sep 2017 14:40:46 GMT

P19 (top left in the image) is the debug out port. You are hooking up to the Arduino Shield port.

RE: Cannot program custom board although connection is established

Matt — Tue, 26 Sep 2017 14:35:49 GMT

Is it the same error if you try with another custom board?