Device unique ID for VL53L5CX ?

[LK]

Hello all,

does the vl53l5cx ULD API (STSW-IMG023) can expose  a unique device ID for the VL53L5CX ? Something similar to the VL51L1 API function call "VL53L1_Error VL53L1_GetUID(VL53L1_DEV Dev, uint64_t *pUid)"  in the driver SWSW-IMG019 ?

Kind regards

[John E KVAM]

I think the code you want is in the API.

int32_t vl53l5_get_module_info(
	struct vl53l5_dev_handle_t *p_dev,
	struct vl53l5_module_info_t *p_module_info)

That function calls decode_module_funtion() which eventually gets to:

	p_module_info->module_id_hi = vl53l5_decode_uint32_t(4, p_buff);
	p_buff += 4;

	p_module_info->module_id_lo = vl53l5_decode_uint32_t(4, p_buff);

Which are the lines you want.

- john

[LK]

Hello John,

thank you for your fast response. Unfortunatly I can not find a function "int32_t vl53l5_get_module_info" in the driver package STSW-IMG023 v1.3.10  or the Linux Dirver STSW-IMG025 . All API functions in these driver packages are starting with "vl53l5cx_". Can you please give more details on the driver package you are refering to ? May a functional code snippet would also serve as well.

Kind regards.

[Anne BIGOT]

Hello,
In the vl53l5cx_api.c file, you can find the vl53l5cx_is_alive function :

uint8_t vl53l5cx_is_alive(
 VL53L5CX_Configuration  *p_dev,
 uint8_t    *p_is_alive)
{
uint8_t status = VL53L5CX_STATUS_OK;
uint8_t device_id, revision_id;

status |= WrByte(&(p_dev->platform), 0x7fff, 0x00);
status |= RdByte(&(p_dev->platform), 0, &device_id);
status |= RdByte(&(p_dev->platform), 1, &revision_id);
status |= WrByte(&(p_dev->platform), 0x7fff, 0x02);

if((device_id == (uint8_t)0xF0) && (revision_id == (uint8_t)0x02))
{
 *p_is_alive = 1;
}
else
{
 *p_is_alive = 0;
}

return status;
}

[LK]

Hello Anne,

I am looking more for a unique id different for each device to enable some sort of traceability. The device_id in the API function "vl53l5cx_is_alive()" is not sufficient for this purpose. The "vl53l5_module_info_t" mentioned by John seams to be the right direction - but unfortunatley is not available in the official driver releases. May a thing ST can consider in a next driver release ?

[Anne BIGOT · Accepted solution]

Hello,

Thank you for your suggestion and we will consider to add this is a next driver release.

Next week, we could deliver this api function in this forum if you are interested in.

Regards

Anne

[LK]

Hello Anne,

yes please - would be great to have this function as early as possible available.

Kind regards.