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Test Sheet: Pico Board

Yocto Version

This test sheet targets the walnascar release of the NXP BSP. If you are working on a different Yocto version, refer to the corresponding test sheet on the meta-engicam-nxp branch for your release.

Test sheet SmarCore MX95 Pico Board

Test sheet

Version: 1.0

Preliminary

Creation of engicam-evaluation-image-mx95 image for booting eMMC programming.

Board Type: Smarcore Evaluation Board

SOM Type: SmarCore MX95

image

U-boot tests

Test Status
eMMC Enviroment saving OK
Ethernet OK
Boot from eMMC OK
USB OK
Serial Download OK

Test Notes:

eMMC Environment saving

setenv serverip 10.24.67.70
saveenv
reset board
printenv serverip

Ethernet

Once the serverip has been saved connect the board at J17-A:

setenv ipaddr 10.24.67.70
ping 10.24.67.1

The output should be:

Using enetc-0 device
host 10.24.67.1 is alive

Do the same test on port J17-B. The output should be:

Using enetc-1 device
host 10.24.67.1 is alive

Boot from eMMC

All switches positioned on OFF:

saveenv

The output should be:

Saving Environment to MMC... Writing to MMC(0)... OK

USB

Plug USB storage devices in J18 UP connectors:

usb start

The output should be:

starting USB...
Bus usb@4c100000: Register 2000140 NbrPorts 2
Starting the controller
USB XHCI 1.10
Bus usb@4c200000: USB EHCI 1.00
scanning bus usb@4c100000 for devices... 1 USB Device(s) found
scanning bus usb@4c200000 for devices... 3 USB Device(s) found
       scanning usb for storage devices... 1 Storage Device(s) found

usb tree

The output should be (for example):

 usb tree
USB device tree:
  1  Hub (5 Gb/s, 0mA)
     U-Boot XHCI Host Controller

  1  Hub (480 Mb/s, 0mA)
  |  u-boot EHCI Host Controller
  |
  +-2  Hub (480 Mb/s, 2mA)
    |
    +-3  Mass Storage (480 Mb/s, 100mA)
         2199 Intenso Rainbow Line 3727090AF7721E8512744

Once done do:

usb stop

stopping USB..

to safely remove storage devices.

Serial Download

USE SMARCORE EVB

Close switch 4 to enable serial download. Connect the board with the source machine (i.e. the machine you are downloading the images from) by using the board's OTG header (N/A).

Power on the board.

From source machine check if an USB device for serial download is detected:

uuu -lsusb

Output:

uuu (Universal Update Utility) for nxp imx chips -- lib1.5.141

Connected Known USB Devices
        Path     Chip    Pro     Vid     Pid     BcdVersion      Serial_no
        ====================================================================
        3:344    MX95    SDPS:   0x1FC9 0x015D   0x0002  1E0751C8AA2342A8

Here we see a device is detected. Then type:

uuu -v -b emmc_all imx-boot engicam-evaluation-image-mx95-imx95-smarcore.rootfs.wic

And wait for the download and flash of eMMC to finish.

Kernel Linux tests

Status Test Note
OK Ethernet 0 (J17-A) see note1
OK Ethernet 1 (J17-B) see note1
OK USB 2.0 (J8) tested with USB stick
OK USB 3.0 (J18) tested with USB stick
OK eMMC card boot system from eMMC
OK UART 232 ttyLP4 (J7) see note2
OK Linux Console (J14)
OK WIFI see note3
OK BLUETOOTH see note4
OK RTC see note5
OK Reboot
OK LVDS
OK Backlight see note6
OK Touchscreen see note7
OK HDMI
OK M.2 Key M PCIe (J10) see note8

Note

Note 1

Connect board's ethernet with your machine's one.

On your machine launch iperf3 server by typing:

iperf3 -s

On board launch iperf3 in client mode:

iperf3 -c 192.168.10.1

Using the IP address of your server machine.

Output:

Connecting to host 192.168.10.1, port 5201
[  5] local 192.168.10.85 port 47390 connected to 192.168.10.1 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  12.2 MBytes   103 Mbits/sec    0    188 KBytes       
[  5]   1.00-2.00   sec  11.1 MBytes  93.3 Mbits/sec    0    188 KBytes       
[  5]   2.00-3.00   sec  11.0 MBytes  92.3 Mbits/sec    0    188 KBytes       
[  5]   3.00-4.00   sec  11.5 MBytes  96.5 Mbits/sec    0    188 KBytes       
[  5]   4.00-5.00   sec  10.9 MBytes  91.2 Mbits/sec    0    188 KBytes       
[  5]   5.00-6.00   sec  11.2 MBytes  94.4 Mbits/sec    0    188 KBytes       
[  5]   6.00-7.00   sec  11.4 MBytes  95.4 Mbits/sec    0    188 KBytes       
[  5]   7.00-8.00   sec  10.9 MBytes  91.2 Mbits/sec    0    188 KBytes       
[  5]   8.00-9.00   sec  11.2 MBytes  94.4 Mbits/sec    0    188 KBytes       
[  5]   9.00-10.01  sec  11.2 MBytes  93.1 Mbits/sec    0    188 KBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.01  sec   113 MBytes  94.7 Mbits/sec    0            sender
[  5]   0.00-10.03  sec   112 MBytes  94.1 Mbits/sec                  receiver

iperf Done.

Note 2

Connect TX/RX PIN connector J14 to the UART 232 port From terminal launch command:

test_serial ttyLP4

Verify that the characters written from keyboard are echoed in terminal.

Note 3

ifconfig wlan0 up
iw dev wlan0 scan | grep SSID
wpa_passphrase SSID PASSWORD > /etc/wpa_supplicant.conf
sdcsupp -iwlan0 -Dnl80211 -c/etc/wpa_supplicant.conf -B
udhcpc -iwlan0

Note 4

echo "1" > /sys/kernel/debug/ieee80211/phy0/cc33xx/ble_enable
hciconfig -a
hciconfig hci0 up
hciconfig -a
hciconfig hci0 up
[bluetooth]# scan on

Note 5

Set a time and date to the clock:

date -s "2026-08-18 16:16:00"
hwclock -w -f /dev/rtc0

Turn off the system and power it back on. Once it booted check that the date is the same:

hwclock -r -f /dev/rtc0

Note 6

Tested with command:

echo <n> > /sys/class/backlight/backlight/brightness

where n is an integer from 0 to 100

Note 7

Tested with command:

evtest /dev/input/event1

Note 8

lspci