HDMI CEC on Orin NX

Autonomous Machines Jetson & Embedded Systems Jetson Orin NX
1

Hi,
It’s my first time working with Nvidia Orin NX Soc. I’m trying to use HDMI CEC interface.
In JETSON ORIN NX TRM p1.2, the HDMI CEC is a part of AON, it has interrupt vector ID is 279, but I can not found the base address. In other Nvidia SoC, we can see the CEC base address in section “3.2.2 System Address Map” however the Orin NX TRM does not have.
Is there anyone works on the CEC module on Orin NX SoC ? Pls let me know the base address of the CEC module and how to control this module from ARMv8 cluster side ?

Many thanks

3

CEC is not supported in software for any Jetson platform.

4

Hi WayneWWW,

Do you know the base address of CEC module on Orin NX SoC ? or do you know the document that I can find that address ?

5

base address is 0x0c3e0000

6

Hi WayneWWW,

Thank you for the CEC base address. I try write to CEC register then read back again the value is always 0xffffffff. I think the CEC clock is not enable yet.

image
image1935×485 67.1 KB

The CAR (Clock and reset controller) module does not have any information about above register. Do you have any document related to CEC clock ?

Regards,
Tuong

7

Hi WayneWWW,
Do you know the clock and reset base address registers of CEC module on Jetson ORIN SoC ?