VL53L8 firmware loading

Icanguess · ‎2025-10-11

I need to cut off all the power supplys of VL53L8 to save power. Does the firmware need to be re-downloaded every time the device is powered on?

loading firmware is in the function

uint8_t vl53lmz_init( VL53LMZ_Configuration		*p_dev)

John_Kvam · ‎2025-10-11

Yes it does. There is no firmware in the part, so at boot one has to download the code to get the part running.

One might think of this as a flaw, but it works out for ST. New parts (VL53L8CH) and variants for really large customers make the download quite attractive. I don't think there were any bug fix releases, although that's another argument for the download.

One has to admit it's kind of a hassle though.

- john

If this or any post solves your issue, please mark them as "Accept as Solution". It really helps the next guy.
And if you notice anything wrong do not hesitate to "Report Inappropriate Content".
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View solution in original post

John_Kvam · ‎2025-10-11

Yes it does. There is no firmware in the part, so at boot one has to download the code to get the part running.

One might think of this as a flaw, but it works out for ST. New parts (VL53L8CH) and variants for really large customers make the download quite attractive. I don't think there were any bug fix releases, although that's another argument for the download.

One has to admit it's kind of a hassle though.

- john

If this or any post solves your issue, please mark them as "Accept as Solution". It really helps the next guy.
And if you notice anything wrong do not hesitate to "Report Inappropriate Content".
I am a recently retired ST Employee. My former username was John E KVAM.