Can i use a pcie m.2 expansion card in the orin agx pcie slot and put a hailo accelerator in it? what controls the pcie on the orin?
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The Jetson AGX Orin module has a PCIe interface that can be used to connect expansion cards, including PCIe M.2 cards. However, there are some limitations and considerations to keep in mind.
The Jetson AGX Orin module has a PCIe x4 interface that supports both Root Port and Endpoint operation. This means that you can use a PCIe M.2 card with a Hailo accelerator in the PCIe slot, but you need to ensure that the card is compatible with the Jetson AGX Orin module’s PCIe interface.
The PCIe interface on the Jetson AGX Orin module is controlled by the PCIe Controller, which is a part of the NVIDIA Jetson Linux Driver Package. The PCIe Controller is responsible for managing the PCIe interface, including configuring the PCIe lanes, handling interrupts, and controlling the PCIe clock.
To use a PCIe M.2 card with a Hailo accelerator, you will need to ensure that the card is properly configured and supported by the Jetson AGX Orin module’s PCIe Controller. This may require modifying the device tree or kernel configuration to enable the PCIe interface and configure the PCIe lanes correctly.
Additionally, you should also consider the power consumption and thermal requirements of the Hailo accelerator, as well as any other components on the PCIe M.2 card. The Jetson AGX Orin module has a limited power budget, and you will need to ensure that the PCIe M.2 card does not exceed this budget.
In comparison to other Jetson modules, the Jetson AGX Orin module has a more advanced PCIe interface, with support for PCIe x4 and both Root Port and Endpoint operation. This makes it a good choice for applications that require high-bandwidth PCIe connectivity, such as AI acceleration with a Hailo accelerator.
However, it’s worth noting that the Jetson Orin NX and Jetson Orin Nano modules have more limited PCIe interfaces, with only PCIe x1 and x2 interfaces available. These modules may not be suitable for applications that require high-bandwidth PCIe connectivity.
In summary, you can use a PCIe M.2 expansion card with a Hailo accelerator in the Jetson AGX Orin module’s PCIe slot, but you need to ensure that the card is compatible with the module’s PCIe interface and configure the PCIe Controller correctly. You should also consider the power consumption and thermal requirements of the Hailo accelerator and other components on the PCIe M.2 card.
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Please refer to M.2/PCIe sections in the Jetson AGX Orin Developer Kit Carrier Board Specification https://developer.nvidia.com/assets/embedded/secure/jetson/agx_orin/jetson_agx_orin_devkit_carrier_board_specification_sp
For schematics, layout, BOM refer to Jetson AGX Orin Developer Kit Carrier Board Design Files (A05) Log in | NVIDIA Developer
Refer to PCIe and UPHY lane mapping related sections in Jetson AGX Orin Series Design Guide (including AGX Orin Industrial) Log in | NVIDIA Developer
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