Description of the iMXceet UL-2 S Demoboard

Models

Name	Kontron Part Number	Description
iMXceet UL-2 S	50099023	Demoboard with i.MX6UL-SoM
iMXceet UL-2 S 43	50099018	Demoboard with i.MX6UL-SoM, 4.3" Display and capacitive Touch
iMXceet UL-2 S 43	50099025	Demoboard with i.MX6UL-SoM, 4.3" Display and capacitive Touch and CAN (instead of RS485)
iMXceet UL-2 S 50	50099022	Demoboard with i.MX6UL-SoM, 5" Display and capacitive Touch
iMXceet UL-2 S 70	50099020	Demoboard with i.MX6UL-SoM, 7" Display and capacitive Touch

Board History

Revision	PCB Number	Description/Changes
R000	1 950 1461

Components/Features

This board consists of two main units. The SoM which is the more complex component including processor and DDR3-RAM. The second component is actually a baseboard including additional storage and containing all necessary connectors.

The SoM is soldered to the baseboard.

SoM

CPU: i.MX6 UltraLite (Max freq: 528 Mhz)
256 MB DDR3 RAM
1 MB SPI NOR Flash
256 MB QSPI NAND Flash
1x Ethernet PHY

Baseboard

4GB eMMC
Micro SD-Card Slot
2x USB Host
1x USB OTG
1x Ethernet PHY
2x Ethernet Connector (RJ45)
RS232
RS485 (or CAN)
3x Debug Leds
RGB-Display Interface
2x Digital IOs
2x Analog Inputs
PWM Buzzer
8KB nvSRAM (SPI)

Serial Interfaces

Also see BSP / Using the Hardware / Serial Interfaces.
You need an additional adapter to translate the 3.3V-UART signals (provided on the Mini-SUB port) to USB.

i.MX6	Used as	Accessible via	Connector
uart1	RS232	`/dev/ttymxc0`	X16 (3pol)
uart2	-	-	-
uart3	RS232	`/dev/ttymxc2`	X8 (Extension)
uart4	Debug	`/dev/ttymxc3`	X11
uart5 FlexCAN	RS485 CAN	`/dev/ttymxc1` `SocketCAN:can0`	X18 (4pol)

PWM-Beeper

The PWM-Beeper can be controlled via the userspace tool beep:

beep -e /dev/input/event1

by sending a BEL character to the console:

echo -e "\a" > /dev/tty0

or by using

ioctl("/dev/input/event1",KIOCSOUND,<tone>)

Warning

There is a hardware bug in revision 0 of the baseboard, that might cause system crashes and errors while using the PWM-Beeper.

Digital IOs

Two digital inputs/outputs (either or) are available. If used as output the state can be read back from the associating input. Furthermore two analog inputs are available.
The table below shows number and function of available GPIOs. You can access them via the standard GPIO Sys-interface /sys/class/gpio

Name	direction	GPIO-Number	Accessible via	Connector
dout1	output	133	`/sys/class/gpio/dout1`	X17_DIO1
din1	input	132	`/sys/class/gpio/din1`	X17_DIO1
dout2	output	129	`/sys/class/gpio/dout2`	X17_DIO2
din2	input	128	`/sys/class/gpio/din2`	X17_DIO2

Analog Inputs

There are two analog inputs available on the board, connected to the internal ADC of the i.MX6UL

Name	Accessible via	Connector
AIN1	`/sys/bus/iio/devices/iio\:device0/in_voltage3_raw`	X17_AIN1
AIN2	`/sys/bus/iio/devices/iio\:device0/in_voltage8_raw`	X17_AIN2

Voltage calculation in mV from the raw value:
U = in_voltageX_raw * (25,8 / 3,3) mV

LEDs

3 Debug Leds are available and can be controlled with the /sys/class/leds directory

nvSRAM

The 8KB nvSRAM can be accessed from the file /sys/class/spi_master/spi0/spi0.0/eeprom

Display Interfaces

The displays of the devices described in capter "Models" are connected via the 40 pin RGB 24 interface (X13). The touch lines for the touch controller are pinned separately via X5. The Display can be connected directly to the standard Kontron Display without need of an adapter.

The board is additionally equiped with an 50 pin RGB interface (X12). The touch controller pins are included. With this interface customer specific displays can be ćonnected via a convenient display adapter (bonded on the display).