Issue with flashing of nRF52810QFAA Device

RE: Issue with flashing of nRF52810QFAA Device

Øyvind — Wed, 05 Jun 2019 09:07:26 GMT

[quote user="abhimanyu"]There is no error but just PC enters to sd_softdevice_enable start and never comes out. If this function comment then continuous reset it observed.[/quote]

My initial thought is that you have an issue with the 32kHz XTAL, this can cause the sd_softdevice_enable to hang.

To test this, please edit sdk_config.h to the following:

/ <o> NRF_SDH_CLOCK_LF_SRC  - SoftDevice clock source.
 
// <0=> NRF_CLOCK_LF_SRC_RC 
// <1=> NRF_CLOCK_LF_SRC_XTAL 
// <2=> NRF_CLOCK_LF_SRC_SYNTH 

#ifndef NRF_SDH_CLOCK_LF_SRC
#define NRF_SDH_CLOCK_LF_SRC 0
#endif

// <o> NRF_SDH_CLOCK_LF_RC_CTIV - SoftDevice calibration timer interval. 
#ifndef NRF_SDH_CLOCK_LF_RC_CTIV
#define NRF_SDH_CLOCK_LF_RC_CTIV 8
#endif

// <o> NRF_SDH_CLOCK_LF_RC_TEMP_CTIV - SoftDevice calibration timer interval under constant temperature. 
// <i> How often (in number of calibration intervals) the RC oscillator shall be calibrated
// <i>  if the temperature has not changed.

#ifndef NRF_SDH_CLOCK_LF_RC_TEMP_CTIV
#define NRF_SDH_CLOCK_LF_RC_TEMP_CTIV 2
#endif

// <o> NRF_SDH_CLOCK_LF_ACCURACY  - External clock accuracy used in the LL to compute timing.
 
// <0=> NRF_CLOCK_LF_ACCURACY_250_PPM 
// <1=> NRF_CLOCK_LF_ACCURACY_500_PPM 
// <2=> NRF_CLOCK_LF_ACCURACY_150_PPM 
// <3=> NRF_CLOCK_LF_ACCURACY_100_PPM 
// <4=> NRF_CLOCK_LF_ACCURACY_75_PPM 
// <5=> NRF_CLOCK_LF_ACCURACY_50_PPM 
// <6=> NRF_CLOCK_LF_ACCURACY_30_PPM 
// <7=> NRF_CLOCK_LF_ACCURACY_20_PPM 
// <8=> NRF_CLOCK_LF_ACCURACY_10_PPM 
// <9=> NRF_CLOCK_LF_ACCURACY_5_PPM 
// <10=> NRF_CLOCK_LF_ACCURACY_2_PPM 
// <11=> NRF_CLOCK_LF_ACCURACY_1_PPM 

#ifndef NRF_SDH_CLOCK_LF_ACCURACY
#define NRF_SDH_CLOCK_LF_ACCURACY 1
#endif

[quote user="abhimanyu"]Is it possible to use internal 64MHz clock to run the BLE so that it will be clear the issue which will be related to crystal only.?[/quote]

As the issue is with sd_softdevice_enable, this clock has not been enabled yet and will not help.

[quote user="abhimanyu"]Could you please provide the work space for this in which BLE is working and DC DC converter is disable as per provide schematic also its using external crystal..[/quote]

All our BLE examples are working with DCDC converter disabled. Please ensure that the correct SoftDevie Clock Source is set as per my first answer.

Kind regards,
Øyvind

RE: Issue with flashing of nRF52810QFAA Device

Umesh — Wed, 29 May 2019 17:13:40 GMT

There is no error but just PC enters to sd_softdevice_enable start and never comes out. If this function comment then continuous reset it observed.

Could you please provide the work space for this in which BLE is working and DC DC converter is disable as per provide schematic also its using external crystal..

May be some issue in our work space. We wanted to do this experiment.

Is it possible to use internal 64MHz clock to run the BLE so that it will be clear the issue which will be related to crystal only.?

(Note: Our previous working PCB is of 4 layers and this new one is 2 layers)

RE: Issue with flashing of nRF52810QFAA Device

Øyvind — Thu, 23 May 2019 09:01:10 GMT

[quote user="abhimanyu"]when program execution of function sd_softdevice_enable start, PC jumps to unknown location. we are using segger studio.[/quote]

Please provide output with an error code from debugging. What location does PC jump to?

Kind regards,
Øyvind

RE: Issue with flashing of nRF52810QFAA Device

Umesh — Tue, 21 May 2019 22:15:14 GMT

Hello,

We are able to flash both devices.

We are using SDK15.2.0 ble_app_blinky example without many modifications.

By default DCDC is not enabled & in program we are not enabling it.

Yes we are able to debug code.

when program execution of function sd_softdevice_enable start, PC jumps to unknown location. we are using segger studio.

By default DCDC is not enabled & in program we are not enabling it.

No any software BLE change is tried.

Many Thanks

RE: Issue with flashing of nRF52810QFAA Device

Øyvind — Wed, 08 May 2019 07:52:23 GMT

Thank you! I will discuss your layout/schematic with an HW specialist.

Just to get me back to speed with your case:

You are able to flash and debug both devices?
Have you enabled DCDC? This should be disabled as you are not using it. Ref. DCDC reference schematic
Have you debugged your code to see when it resets? What error are you receiving?
Please give a current status after the changes you have tried.

Thanks!
-Øyvind

RE: Issue with flashing of nRF52810QFAA Device

Umesh — Tue, 07 May 2019 15:29:31 GMT

devzone.nordicsemi.com/.../SlaveSensor_5F00_V1.0.7z

RE: Issue with flashing of nRF52810QFAA Device

Øyvind — Tue, 30 Apr 2019 12:21:29 GMT

I am not able to help without the whole PCB layout and schematics. Please provide these files so that I can review.

Can you please provide the project you are programming as well?

Kind regards,
Øyvind

RE: Issue with flashing of nRF52810QFAA Device

Umesh — Sat, 27 Apr 2019 16:36:12 GMT

Even after replacing the crystal with same part number as given in Thingy .. still issue persist.

One major change is done this PCB is that PIN 47 DCC is not used but its present in working board.

RE: Issue with flashing of nRF52810QFAA Device

Umesh — Sat, 27 Apr 2019 05:51:34 GMT

I am also trying to replace the Crystal with same part number as given in thingy.

RE: Issue with flashing of nRF52810QFAA Device

Øyvind — Tue, 23 Apr 2019 10:26:51 GMT

Can you please provide the whole PCB layout?

RE: Issue with flashing of nRF52810QFAA Device

Umesh — Sun, 21 Apr 2019 11:06:16 GMT

Below is the crystal part number difference:

Working board : Crystal 32MHz > CX2016DB32000D0WZRC1 (with 12pf capacitor)

Non Working board : Crystal 32MHz > XRCGB32M000F2P01R0 (with 12pf capacitor)

RE: Issue with flashing of nRF52810QFAA Device

Umesh — Sat, 20 Apr 2019 17:18:44 GMT

3. Voltage rise time of regulator to reach 3.2V on

Working board > 800us

Non Working Board > 400us

Does this voltage startup tie causes issue?

RE: Issue with flashing of nRF52810QFAA Device

Umesh — Sat, 20 Apr 2019 12:59:19 GMT

As per reference schematic pin 32 DEC2 shall be free.

1. Is connecting 0.1uF capacitor is wrong here (voltage observed is ~1.2V o this pin)?

2. When checked with Crystal Pins 34/35 there is no signal present. Does it is due to continue reset?

RE: Issue with flashing of nRF52810QFAA Device

Umesh — Sat, 20 Apr 2019 12:42:34 GMT

Note: for above layout top and bottom copper (GND) layers is removed for better visibility

RE: Issue with flashing of nRF52810QFAA Device

Umesh — Sat, 20 Apr 2019 12:41:17 GMT

RE: Issue with flashing of nRF52810QFAA Device

Umesh — Sat, 20 Apr 2019 12:20:39 GMT

Now both Controller 810/823 are getting flashed and started debugging also. I verified all VCC capacitors value and dry solder of VCC Pins.

Now again issue I am facing it that, controller getting reset while BLE initialization.

In this board I can use 832/810 controller.

In my previous board for 832; which is working fine with BLE and also good range up to 50m is reference for me. In this reference board I used DC DC pins (46/47).

In new board which is getting reset while BLE init dont have DC DC pin used. Only pin 46 is connected to 1uF capacitor.

Is there any issue with this?

Do I need to disable DC-DC regulator from software (register DCDCEN)?

Please have a look a MCU schematic and capacitor values.

RE: Issue with flashing of nRF52810QFAA Device

Øyvind — Thu, 11 Apr 2019 06:48:54 GMT

[quote user="abhimanyu"]same connections are used to program nRF52832QFAA then it works[/quote]

Also, how is the nRF52832 mounted? Is this on the same board?

RE: Issue with flashing of nRF52810QFAA Device

Øyvind — Thu, 11 Apr 2019 06:27:20 GMT

Hi,

[quote user="abhimanyu"]output from JFlash? Mainly Data (with pull up connected)[/quote]

I need the data itself. There might be some clues there. You must copy and paste here.

[quote user=""] own developed nRF52810QFAA board[/quote]

Could you please provide the schematics for this board, perhaps there are some connections /values that are wrong.

Thank you.

Kind regards,
Øyvind

RE: Issue with flashing of nRF52810QFAA Device

Umesh — Wed, 10 Apr 2019 22:46:34 GMT

Hello,

Please check below inputs:

What is the voltage of the device? > 3.12V

How is the target device powered > Onboard regulator 3.12V

What Segger are you using? EDU Jlink Segger

output from JFlash? Mainly Data (with pull up connected), Clock, Gnd and Vcc. when same connections are used to program nRF52832QFAA then it works. But not with nRF52810 device.

RE: Issue with flashing of nRF52810QFAA Device

Øyvind — Mon, 08 Apr 2019 08:14:49 GMT

Hello,

I can't see anything wrong with your connection. Can you please provide some more information i.e. output from JFlash? What Segger are you using? What is the voltage of the device? How is the target device powered?

Thank you!

Kind regards,
Øyvind