Configuration for running NVPPS GPIO mode

[jishnuw]

Please provide the following info (tick the boxes after creating this topic):
Software Version
DRIVE OS 6.0.8.1
DRIVE OS 6.0.6
DRIVE OS 6.0.5
DRIVE OS 6.0.4 (rev. 1)
DRIVE OS 6.0.4 SDK
other

Target Operating System
Linux
QNX
other

Hardware Platform
DRIVE AGX Orin Developer Kit (940-63710-0010-300)
DRIVE AGX Orin Developer Kit (940-63710-0010-200)
DRIVE AGX Orin Developer Kit (940-63710-0010-100)
DRIVE AGX Orin Developer Kit (940-63710-0010-D00)
DRIVE AGX Orin Developer Kit (940-63710-0010-C00)
DRIVE AGX Orin Developer Kit (not sure its number)
other

SDK Manager Version
1.9.3.10904
other

Host Machine Version
native Ubuntu Linux 20.04 Host installed with SDK Manager
native Ubuntu Linux 20.04 Host installed with DRIVE OS Docker Containers
native Ubuntu Linux 18.04 Host installed with DRIVE OS Docker Containers
other

Hi

I need a clarification on the configuration for NVPPS.

I am getting 1 HZ PPS signal which I am able to feed to Tegra. Can you tell me what should my DTS configuration look like? Should we enable fsync group for this feature to work or should this be disabled and only change the frequency say from 30 to 10hz if we need 10fps?

I have ptp enabled. I have nvpps set from a function into gpio mode but still there is lack of clarity. I am trying to follow this Orin Time Sync | NVIDIA Docs but still some confusions. Can you please share a step by step on how to achieve this?

Thanks!!
Jishnu

[VickNV]

For clarification on NVPPS configuration, please refer to nvpps_main.c and nvpps.txt to understand how NVPPS works. Additionally, you can check cam_fsync.c to see how TSC_EDGE_OUT signals are configured.

[jishnuw]

@jishnuw

Can you tell me what should my DTS configuration look like? Should we enable fsync group for this feature to work or should this be disabled and only change the frequency say from 30 to 10hz if we need 10fps?

What about this part? Rest I can try figure out, this part I am not clear.

[VickNV]

I believe you don’t need to enable another fsync group. You can refer to the ‘cam_fsync_program_group_generator_edges()’ function in ‘cam_fsync.c’ for guidance.