Jetson NANO flash image

Robotics & Edge Computing Jetson & Embedded Systems Jetson Nano
1
  1. Now I know flash NANO image need use outside flash micro SD, Then put to NANO CPU module boot, so can you flash image from other, E.g : USB, Ethernet…
  2. Whether NANO CPU on-module Micro-SD is (SDMMC4)? In socket SDMMC3 is 1.8V level, If through level-sheet to 3.3V level can support SD-card functions? Support bootable OS?

Thanks, help this.

2

Hi, until now only micro SD card flash way is released, please follow that. It is SDMMC1 for Micro-SD card on module. SDMMC3 is used as SDIO, SD Card functionality is not supported on it.

3

Hi Trumany, according to the Jetson Nano Product Design Guide (release date JUN 7,2019) on page 36. The figure 20 shows a SD Card connection example. It made me confused the SD Card functionality supportability. Could you please double confirm the configuration? Also, are the SDMMC I/O tolerant of 3.3V level? As the latest datasheet shows the SD/SDIO Card supported voltages are 1.8/3.3 on page 30.

4

Yes, as latest guide said, SD card is supported on SDMMC3 port now. It is 1.8v/3.3v tolerant.

5

Hello,

There is no information about whether you need a voltage translator for SD3.0 which requires 3.3V signaling levels initially and needs to switch over to 1.8V signalling for UHS-I higher speed modes.

Anyone have any information on this?

Thanks

6

There is a 3.3V load switch mentioned in OEM DG. The IO voltage will be auto switched accordingly after initialization.