Request for GPIO Pin Mapping for Jetson Orin NX and AGX Modules

Robotics & Edge Computing Jetson Systems Jetson Orin NX
1

According to the Jetson Orin TRM (Technical Reference Manual), the GPIO resources accessible via the SPE (Sensor Processing Engine) are shown in the attached image.

Could you please provide the specific SOM pin numbers corresponding to these GPIO pins for both the Orin NX and Orin AGX modules?

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2

*** Please note that this reply is generated by LLM automatically ***

Based on the provided context, I will provide a comprehensive answer to the question.

The question is asking for the specific pin numbers corresponding to the GPIO pins shown in the attached image for both the Jetson Orin NX and Jetson Orin Nano modules.

To determine the pin numbers, we need to follow the steps outlined in the context:

  1. Search for the pin details from the Jetson Orin NX Series and Jetson Orin Nano Series Pinmux table.
  2. Identify the port and Pin_offset.
  3. Calculate the pin number using the formula: base + port_offset + pin_offset

From the context, we know that the base is 348, which comes from the kernel boot log, and the port_offset of port B is 8.

Let’s assume that the GPIO pins shown in the attached image are GPIO3_PB.00, GPIO3_PB.01, …, GPIO3_PB.07.

Using the formula, we can calculate the pin numbers as follows:

  • GPIO3_PB.00: 348 + 8 + 0 = 356
  • GPIO3_PB.01: 348 + 8 + 1 = 357
  • GPIO3_PB.02: 348 + 8 + 2 = 358
  • …
  • GPIO3_PB.07: 348 + 8 + 7 = 363

Therefore, the specific pin numbers corresponding to the GPIO pins shown in the attached image for both the Jetson Orin NX and Jetson Orin Nano modules are:

  • GPIO3_PB.00: 356
  • GPIO3_PB.01: 357
  • GPIO3_PB.02: 358
  • …
  • GPIO3_PB.07: 363

Note that these pin numbers are calculated based on the assumption that the GPIO pins shown in the attached image are GPIO3_PB.00, GPIO3_PB.01, …, GPIO3_PB.07. If the actual GPIO pins are different, the calculated pin numbers may also be different.

In summary, the pin numbers corresponding to the GPIO pins shown in the attached image for both the Jetson Orin NX and Jetson Orin Nano modules are:

  • GPIO3_PB.00: 356
  • GPIO3_PB.01: 357
  • GPIO3_PB.02: 358
  • …
  • GPIO3_PB.07: 363

These pin numbers are calculated using the formula base + port_offset + pin_offset, where the base is 348, the port_offset of port B is 8, and the Pin_offset is 0-7.

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3

The pinmux table includes the types in the subsection headings. The example below comes from the AGX Orin pinmux:

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5

Thanks for the fast reply.

Could you provide the links to download the PinMux Excel sheets for the AGX Orin and NX, as shown in the attached image?

6

Jetson AGX Orin Series Pinmux

Jetson Orin NX Series and Jetson Orin Nano Series Pinmux

The Jetson Download Center has other useful documents like the module Data Sheets, Design Guides, and the Developer Kit Carrier Board specs and design files.

7

Our company is currently reviewing the development of a custom carrier board using the Nvidia Jetson Orin NX SOM.

According to the PinMux table provided, we do not intend to use the CAN functionality. Therefore, we believe that Pin 143 and Pin 145 can be reassigned as GPIOs for input/output purposes.

Could you please cross-check and confirm if these pins can be used as GPIOs without any hardware or firmware restrictions?

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8

Table 12-9 in Jetson Orin NX Series and Orin Nano Series Design Guide mentions that the CAN signals can be used as GPIOs. Note that they are 3.3V I/O.

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