# VOXL2 Mini Camera Configuration Instability

Source: https://forum.modalai.com/topic/2640/voxl2-mini-camera-configuration-instability
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2023-09-11 04:08:06 UTC by Steve Turner
Replies: 0 · Views: 494

## Steve Turner · 2023-09-11 04:08:06 UTC

We are trying to get a 3xTracking and 1x Hi-Res configuration working. Based on testing, it seems this might not be a supported configuration.

- Based on stock bionic Modal kernel and image released
- Based on interface board m0135
     - The Tracker sensor (ov7251) can only be connected to JU (furthest from Qualcomm chip)
     - The HiRes sensor (Imx214) can only be connected to JL, (Closest to the Qualcomm chip)
     - Connecting the wrong sensor to the JU/JL on Voxl2 mini J6 connector will fail to boot and normally require a fast boot to reimage
          - Connecting to J7 does not boot, but generally recovers without fastboot reimage required.
     - If using the m0135 inteface board, one must be fully populated with both a high res and a tracker sensor
         - If using two, the second board should not populate the HiRes sensor
     - Trying to connect two of the same sensors to the interface board will fail, and depending if J6 is used, a fast boot reimage may be required

Reviewing m0014 (tracker) shows the cable is 1 lane CSI with most pins not connected. There is no obvious reason for crashing when connecting to the wrong JU/JL. 
Is there something that potentially is causing a hardware fault in this configuration?

The highest sensor configuration we can get working is that above, 1 HiRes and 2 Trackers.

Thanks for any help Modal Team!