Problem with programming wt51822-s4at

RE: Problem with programming wt51822-s4at

Sepehr1989 — Mon, 23 Jul 2018 22:10:50 GMT

but why central not working for me?

could i have your central program to test on mine?

IgorRus — Mon, 23 Jul 2018 07:54:22 GMT

No, I try two options: nRF52-DK - central, wt51822 - peripheral and nRF52-DK - peripheral, wt51822 - central

Both options work well

Sepehr1989 — Sat, 21 Jul 2018 20:40:55 GMT

but for central board still it has problem.

peripheral boards unable to connect to central board.

have you this problem too?

IgorRus — Fri, 20 Jul 2018 09:00:05 GMT

Oh, thank you very much! Now it works

Sepehr1989 — Thu, 19 Jul 2018 06:57:26 GMT

I found.

it doesn't have any external LF Crystal, so you should using NRF_CLOCK_LFCLKSRC_SYNTH_250_PPM insted of NRF_CLOCK_LFCLKSRC_XTAL_20_PPM.

Sepehr1989 — Thu, 19 Jul 2018 02:48:51 GMT

I have this problem too.

a program that work correctly on another 51822 module don't work on wt51822.

gpio and timer work correctly on both module, but advertising doesn't work on wt51822.

IgorRus — Thu, 05 Jul 2018 14:03:10 GMT

Blinky example works, but there is some issue: the LED blinks faster than I programmed ( 3 seconds instead of 5 seconds)

I use s130_nrf51_2.0.1_softdevice

Martin Lesund — Thu, 05 Jul 2018 12:37:14 GMT

Hi Igor,

Sounds good.

Could you try an example that do not include BLE. Like the "blinky" example just to make sure that the device is flashed correctly?

I would recommend you to use "nrf5x command line tools" to flash your device for better control.

Then you can follow this description on how to flash the softdevice.

What Softdevice s130 version do you use?

IgorRus — Thu, 05 Jul 2018 12:19:45 GMT

Unfortunately, I do not have the opportunity to take a photo, but, believe me, it's done just like in the article https://devzone.nordicsemi.com/f/nordic-q-a/14058/external-programming-using-nrf52-dk

Yes, I am able to flash the wt51822-s4at (from nRFgo Studio and Keil), but do not see the peripheral advertising from the "nRF Connect" app

Martin Lesund — Thu, 05 Jul 2018 11:52:23 GMT

Hi Igor,

Do you have a picture on how you have connected the signals between the debug out on nRF52DK and the wt51822-s4at ?

What do you mean by "The firmware goes through without problems"?

Are you saying that you are able to flash the wt51822-s4at , but do not see the peripheral advertising from the "nRF Connect" app?