mPCIe & M.2 B Key

mPCIe

NRU-220S has two mPCIe modules.

• The mPCIe connector near 2.5" SATA connector equips with PCIe + USB interface.

• The mPCIe connector away from 2.5" SATA connector equips with USB interface only.

M.2 B Key

• You can change the standoff position to accommodate M.2 B key modules with 3042 or 3052 form factor.

• Please use our special flat screws to prevent from interference with the 2.5" SSD above.

Manually Reset (JetPack 6.x)

The following script are reserved for manually reset or debug purpose.

### Check Pin ID by 
### sudo cat /sys/kernel/debug/gpio

### Pure USB Modules on mPCIe require additional steps to wake up

### mPCIe in the Central (USB Interface Only)
sudo su
PIN=PA.00
sudo pkill -f -- "$(sudo gpiofind $PIN)"
sudo gpioset -m signal $(sudo gpiofind $PIN)=0 &
sleep 1
sudo pkill -f -- "$(sudo gpiofind $PIN)"
sudo gpioset -m signal $(sudo gpiofind $PIN)=1 &


## mPCIe near 2.5" SSD Connector
# USB + PCIe Interface
sudo su
PIN=PAG.01
sudo pkill -f -- "$(sudo gpiofind $PIN)"
sudo gpioset -m signal $(sudo gpiofind $PIN)=0 &
sleep 1
sudo pkill -f -- "$(sudo gpiofind $PIN)"
sudo gpioset -m signal $(sudo gpiofind $PIN)=1 &


# Reset Pin of M.2 B Key is GPIO PA.00 (gpio-348)
sudo su
PIN=PA.00
sudo pkill -f -- "$(sudo gpiofind $PIN)"
sudo gpioset -m signal $(sudo gpiofind $PIN)=0 &
sleep 1
sudo pkill -f -- "$(sudo gpiofind $PIN)"
sudo gpioset -m signal $(sudo gpiofind $PIN)=1 &

Manually Reset (JetPack 5.x)

The following script are reserved for manually reset or debug purpose.

### Check Pin ID by 
### sudo cat /sys/kernel/debug/gpio

### Pure USB Modules on mPCIe require additional steps to wake up

### mPCIe in the Central (USB Interface Only)
sudo -s
pinNum=348
pinID=PA.00
sudo echo $pinNum > /sys/class/gpio/export
echo out > /sys/class/gpio/$pinID/direction
echo 0 > /sys/class/gpio/$pinID/value
sleep 1
echo 1 > /sys/class/gpio/$pinID/value


## mPCIe near 2.5" SSD Connector
# USB + PCIe Interface
sudo -s
pinNum=505
pinID=PAG.01
sudo echo $pinNum > /sys/class/gpio/export
echo out > /sys/class/gpio/$pinID/direction
echo 0 > /sys/class/gpio/$pinID/value
sleep 1
echo 1 > /sys/class/gpio/$pinID/value


# Reset Pin of M.2 B Key is GPIO PA.00 (gpio-348)

sudo -s
pinNum=348
pinID=PA.00
sudo echo $pinNum > /sys/class/gpio/export
echo out > /sys/class/gpio/$pinID/direction
echo 0 > /sys/class/gpio/$pinID/value
sleep 1
echo 1 > /sys/class/gpio/$pinID/value