BHI360 1.8VIO design

[lucaf]

Hello,

I am making a design for the BHI360 with one 1.8V, will this work? because in the reference they show to seperate 1.8V.

I don't know why? and it can be programmed with the jlink tc2030 connection right?

(see picture)

Kind regards, Luca.

[BSTRobin]

Hi lucaf,

Thank for your inquiry.
BHI360 VDD, VDDIO also support 1.8v.
BHI360 does not support Jink programming, you do not need to connect SWCLK, SWDIO.
R35 does not require a resistance as large as 10k, it can be tens of ohms or 0 ohms. Pin 17 of BHI360 does not need to be connected to Jlink, only the GPIO of the host MCU needs to be connected.
I also uploaded BHI360 diagram from data sheet for your reference.

[lucaf]

Thanks for the quick response Robin! I Am sorry for not reading the datasheet enough.

this is my current design, but i do not need to program the firmware or something like that?

In my design the BHI360 is attached to a foot and should communicate if it is walking or not moving. Does this design work for that?

Kind regards Luca.

[Cozmo]

BHI360 only has RAM, you need to program after very boot with another MCU via the SPI host port. Look at the upload firmware example https://github.com/boschsensortec/BHY2_SensorAPI/blob/master/examples/load_firmware/load_firmware.c

Cheers Cozmo

[lucaf]

Ah thanks man, didn't expect a reply anymore. So I can just download a example firmware, and upload it on the ram via I2C.