Xiao BLE Sense Zephyr SD Access Through Expansion Board

RE: Xiao BLE Sense Zephyr SD Access Through Expansion Board

PjGlasso — Tue, 13 Aug 2024 05:15:42 GMT

Hi there,

So I recently started on the NRF_SDK path and i had the same thought of an Overlay ? or DTS file for the Hardware description based off of the schematic. I have a self test Drag&Drop Uf2 file and the ino file for it on the seeed forum. I lights the LEDs,Test the Flash , Tests the SD card (for a fatfs formatted sd card inserted), displays the results on the OLED I2C display , the buzzer is A3 plays a sound. I did find while testing , sometimes it was better to use the GPIO pin numbers in the sketches to get some to work. the self Test also spits out the Device number , MAC address and sets up a BLE central for LED control.Here is the link to the posts if it's allowed

I want to start making the same test for it using the NRF_SDK so I'm just beginning.

I have an nRF52840DK and a Nordic Dongle, and the Xiao SWD expansion board and connect them together here use the JLink with the SDK and Nrf_for Desktop Programmer no problem. Built the blinky and sent to both devices.

The SD is SPI interface and the CS D2 or GPIO P0.28

The serial output looks like this.:

Power ON

Xiao Expansion board and MCU check & Test compiled on Aug 13 2024 at 00:45:24

Processor came out of reset.

Selected MCU: nRF52840

Xiao Unit: 0993

Playing startup sound

RTC Date & Time is:8/7/24 12:50:34

Testing R G B LED - RED, GREEN, BLUE...

Initializing SD card...Card Mounted

Card type: SDHC

Volume type is:    FAT32

SD Volume size (Gb):  29.12

Read I2C

    SDA pin: 4

    SCL pin: 5

    I2C address: 68

Xiao MAC: 93:8E:19:D7:65:53

Advertising Bluetooth Device

  as: Xiao 0993

---END---

I find this image to be the most accurate,

here is a link to the video

https://forum.seeedstudio.com/t/xiao-expansion-board-drag-drop-testing-uf2-flash-files/275874/4?u=pj_glasso

is it an overlay that is needed, when is it an Overlay and when is it a Device tree?

I get a device tree for the sense version would be different from the BLE only version. (no IMU or PDM mic)

HTH

GL ☺ PJ ✌

would a different Overlay be used for this expansion base as well?

RE: Xiao BLE Sense Zephyr SD Access Through Expansion Board

Håkon Alseth — Mon, 18 Mar 2024 08:03:32 GMT

Hi,

If you have an issue, I would recommend that you open a new thread specific to the problem that you're seeing. Remember to share logs and details on what you're observing.

Kind regards,

Håkon

RE: Xiao BLE Sense Zephyr SD Access Through Expansion Board

vgarcive — Fri, 15 Mar 2024 22:09:24 GMT

Hi,

Could you share how you got it working? I am facing the same issue and I am bit stuck in here.

Thank you!

RE: Xiao BLE Sense Zephyr SD Access Through Expansion Board

wellmacj — Tue, 18 Apr 2023 13:31:21 GMT

Ill let you know once they get back to me

thanks,

Cage

RE: Xiao BLE Sense Zephyr SD Access Through Expansion Board

Håkon Alseth — Tue, 18 Apr 2023 07:31:18 GMT

I'm glad to hear that you got it working. Was the problem NFC pin related?

Kind regards,

Håkon

RE: Xiao BLE Sense Zephyr SD Access Through Expansion Board

wellmacj — Mon, 17 Apr 2023 14:33:30 GMT

Thank you for the help Håkon however one of my colleagues gotten this working, I can link how they got it working or I can just close the ticket, which would you prefer?

RE: Xiao BLE Sense Zephyr SD Access Through Expansion Board

Håkon Alseth — Mon, 17 Apr 2023 14:18:14 GMT

Hi,

P0.09 and P0.10 are gpios dedicated to the NFC pins.

To use these as normal GPIOs, please set "CONFIG_NFCT_PINS_AS_GPIOS=y".

Could you try this and see if that works?

Kind regards,

Håkon

RE: Xiao BLE Sense Zephyr SD Access Through Expansion Board

wellmacj — Fri, 14 Apr 2023 18:39:10 GMT

[00:00:05.364,227] <err> main: Storage init ERROR!

[00:00:05.364,257] <err> fs: fs mount error (-5)

Error mounting disk.

this is the specific error I get.