Trying to flash E104-BT5032A

RE: Trying to flash E104-BT5032A

lschyi — Sat, 06 Nov 2021 02:35:08 GMT

Not sure is it still need for you, I just encounter the same issue and solve it. The reason is that E104-BT5032A does not have an onboard 32.768Hz oscillator, so you need some configuration to make the SoftDevice run with such configuration.

The post I found here documented how to set configuration without an onboard oscillator: https://jimmywongiot.com/2019/12/17/internal-rc-calibration-handling-on-the-nordic-nrf52-chipset/

Also, if you found more info or issue, please share them with me, thank you.

RE: Trying to flash E104-BT5032A

amr87 — Fri, 30 Apr 2021 06:46:49 GMT

is there anything related to the product description from the link you just shared?

on the website mentioned that the chip is originally came from Semtech not from Nordic

RE: Trying to flash E104-BT5032A

Kenneth — Wed, 28 Apr 2021 16:37:41 GMT

I recommend to get an nRF52-DK for comparison, I can see that the repository you link to have support for that board:

https://www.digikey.com/en/products/detail/nordic-semiconductor-asa/NRF52-DK/5773879

The nRF52-DK also include a SEGGER j-link that can be used to program and debug third party nRF modules.

The nRF52-DK cost is $39.

I also recommend to check out the getting started section in the nRF5 SDK:

https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/nrf51_getting_started.html

RE: Trying to flash E104-BT5032A

acalatrava — Wed, 28 Apr 2021 12:20:33 GMT

Ok, after some more tests I see that if I flash a simple program like a blink demo the program flashes and device is still recognized. So the porblem appears when I flash a SoftDevice! No matter which one.... why may this happen?

In case this may help this is how the device is recognized:

14:19:16.438 Core RAM: 64KiB
14:19:16.438 Core ROM: 512KiB in pages of 4KiB
14:19:16.564 Model: NRF52832_xxAA_REV2.

RE: Trying to flash E104-BT5032A

acalatrava — Wed, 28 Apr 2021 12:03:42 GMT

Ok I reply to myself, it seems that's actually free space... sorry, it's my first time with this tool ;)

So, I'm starting to think there is some kind of protection on this module to avoid be reflashed? Is this even possible?

RE: Trying to flash E104-BT5032A

acalatrava — Wed, 28 Apr 2021 11:51:30 GMT

I checked that CONFIG_GPIO_AS_PINRESET was not defined actually. Either way I even try to define it but the problem persists.

The thing is that no matter what I flash, even if I flash just the SoftDevice the device will not be recognized anymore.

Also once I recover it there is always 1 block when reading the flash, not sure if this is normal?

RE: Trying to flash E104-BT5032A

Kenneth — Wed, 28 Apr 2021 11:31:24 GMT

Can you try to remove CONFIG_GPIO_AS_PINRESET from the preprocessor definitions? I think all examples by default enable pin reset. That is kind of the only thing I can think of here.

Kenneth

RE: Trying to flash E104-BT5032A

acalatrava — Wed, 28 Apr 2021 09:08:31 GMT

Sorry the correct board is this one! The link was wrong