Prototype current consumption high

RE: Prototype current consumption high

Nero — Wed, 07 Feb 2018 14:43:43 GMT

I have the same issues , are you find a solution ?

RE: Prototype current consumption high

Marcel — Tue, 21 Mar 2017 16:31:58 GMT

difference between the two is only the LED and Button configuration and the UART is disabled in the brf_drv_config.h file

RE: Prototype current consumption high

annapalu — Tue, 21 Mar 2017 13:38:33 GMT

can you see the difference between the pca10040.h and custom_board.h? the clock is the NRF_CLOCK_LF_SRC_XTAL? and are you sure that the UART is disable?

RE: Prototype current consumption high

Marcel — Tue, 21 Mar 2017 13:25:47 GMT

Yes, they are identically besides that I changed the board type from "BOARD_PCA10040" to "BOARD_CUSTOM" and edited then the custom_board.h (I got this file from the firmware package from sparkfun)

RE: Prototype current consumption high

annapalu — Tue, 21 Mar 2017 13:15:42 GMT

is the code same for the two boards?

RE: Prototype current consumption high

Marcel — Tue, 21 Mar 2017 12:48:28 GMT

learn.sparkfun.com/.../nrf52832-breakout-board-hookup-guide

i have this breakout board. So maybe it is because of the RTC, but i dont know^^

RE: Prototype current consumption high

annapalu — Tue, 21 Mar 2017 12:46:13 GMT

What does components have on your board? Do you have the same components on evaluation kit?

RE: Prototype current consumption high

Marcel — Tue, 21 Mar 2017 12:43:08 GMT

I don't have an accelerometer. My breakout board has a constant 300-400uA current consumption while the Development Kit is like 4uA.

Any ideas?^^

RE: Prototype current consumption high

annapalu — Tue, 21 Mar 2017 12:31:02 GMT

Hi Marcel,

my problem was a accelerometer that though switch off have a high consumption. have you an accelerometer? What is your components?

Anna

RE: Prototype current consumption high

Marcel — Tue, 21 Mar 2017 10:54:40 GMT

Is there a solution to this topic?

I have the same issue.

S132, 2.0.1 SD, Sparkfun Breakout Board

RE: Prototype current consumption high

Øyvind Karlsen — Sun, 16 Oct 2016 16:16:41 GMT

Ah, my bad.

Could you submit your hardware for review on our closed support portal MyPage?

RE: Prototype current consumption high

annapalu — Thu, 13 Oct 2016 11:52:42 GMT

The minimum that i can use in 20 PPM

RE: Prototype current consumption high

Øyvind Karlsen — Wed, 12 Oct 2016 12:11:52 GMT

Then you need to use that as your .xtal_accuracy, i.e. NRF_CLOCK_LF_XTAL_ACCURACY_10_PPM

RE: Prototype current consumption high

annapalu — Wed, 12 Oct 2016 10:29:04 GMT

Tol = +/- 10ppm

RE: Prototype current consumption high

Øyvind Karlsen — Wed, 12 Oct 2016 08:58:23 GMT

What is the actual frequency tolerance of the physical crystal you are using?

RE: Prototype current consumption high

annapalu — Wed, 12 Oct 2016 08:54:18 GMT

This is my configuration:

   nrf_clock_lf_cfg_t clock_lf_cfg = NRF_CLOCK_LFCLKSRC;

   // Initialize the SoftDevice handler module.
   SOFTDEVICE_HANDLER_INIT(&clock_lf_cfg, NULL);


// Low frequency clock source to be used by the SoftDevice
#define NRF_CLOCK_LFCLKSRC      {.source        = NRF_CLOCK_LF_SRC_XTAL,            \
                                 .rc_ctiv       = 0,                                \
                                 .rc_temp_ctiv  = 0,                                \
                                 .xtal_accuracy = NRF_CLOCK_LF_XTAL_ACCURACY_20_PPM}

RE: Prototype current consumption high

Øyvind Karlsen — Wed, 12 Oct 2016 08:51:26 GMT

What accuracy is your HF crystal?

What accuracy is your LF crystal?

RE: Prototype current consumption high

annapalu — Wed, 12 Oct 2016 08:37:52 GMT

In my code, it is just configurate with a accuracy of 20 PPM. I try to change the accuracy to 30 PPm or 250 PPm but nothing change. And the board works correctly without restart or error. It's only the consumption that is high.

RE: Prototype current consumption high

Øyvind Karlsen — Wed, 12 Oct 2016 08:11:49 GMT

Hi,

DC/DC configuration is fine. I was asking in case it had been forgotten.

Let me know if you see any errors with the modification.

Øyvind

RE: Prototype current consumption high

annapalu — Wed, 12 Oct 2016 08:08:06 GMT

Thank you so much, i try this modification. Last answer. Yes I use a DC/DC configuration, do you think that it this is can be a problem?

RE: Prototype current consumption high

Øyvind Karlsen — Wed, 12 Oct 2016 07:44:43 GMT

I see, lets pursue a different road first (if we end up needing to review the hardware we also have a closed support portal called mypage).

The current draw you are seeing is very much in line with what you might see if you get an error that causes your device to reboot. Please follow the guidelines in this post to enable DEBUG output.

The most likely cause for this type of error is that the crystals in your design have a different tolerance than the ones in the reference design, in this case they have to be initialized differently. E.g. for a 20ppm crystal you would call: SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_XTAL_20_PPM, false);

RE: Prototype current consumption high

annapalu — Wed, 12 Oct 2016 07:16:52 GMT

No i Can't :(, sorry

RE: Prototype current consumption high

Øyvind Karlsen — Wed, 12 Oct 2016 07:12:09 GMT

Could you send a schematic of your custom board?

RE: Prototype current consumption high

annapalu — Wed, 12 Oct 2016 07:07:54 GMT

No, i don't have error when debugging. The board go in sleep mode wait correctly, but the consumption is 400 ua. Only on the prototype.

RE: Prototype current consumption high

Øyvind Karlsen — Wed, 12 Oct 2016 06:58:51 GMT

I suspect that you might have started your crystals wrongly, or that you aren't getting to sleep properly with your new hardware. Are you getting any error codes when debugging?