UPC CREX

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Warning: POWER OFF the UPCore board BEFORE plugging/unplugging a carrier board.

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UPC-CRST01 Hardware Specifications

Specifications
PCIe Switch	1x 2 channel PCIe switch
Ethernet	1x Realtek RTL8111G-CG
Internal I/O ports	1x jumper for RS232/RS422/RS485 1x Power LED (bottom side) 1x uSIM Card Reader
Edge I/O ports	1x RJ45 Ethernet port 1x RS-232/422/485 connector 1x horizontal 30 pin wafer box header for HAT 40 I/O pins at back side

Pin Map (DIO1 30-pin header)

Pin	Description	Linux GPIO
01	I2C0_SOC_SDA	0
02	I2C0_SOC_SCL	1
03	I2C1_SOC_SDA	2
04	I2C1_SOC_SCL	3
05	GPIO22/SPI_CS0N	8
06	GPIO23/SPI_CS1N	7
07	GPIO7/SPI2_MOSI	10
08	GPIO8/SPI_MISO	9
09	GPIO9/SPI_CLK	11
10	GPIO16/UART1_TX	14
11	GPIO17/UART1_RX	15
12	GPIO25/PWM0	12
13	GPIO13/PWM1	13
14	GPIO14/I2S2_FRM	19
15	GPIO18/I2S2_CLK	18
16	GPIO27/I2S2_DATAIN	20
17	GPIO28/I2S2_DATAOUT	21
18	ISH_GPIO0	4
19	ISH_GPIO2	5
20	ISH_GPIO3	6
21	ISH_GPIO4	17
22	ISH_GPIO9	16
23	3.3V
24	3.3V
25	GND
26	GND
27	GND
28	5V
29	5V
30	GND

Quick tests

Board detection in BIOS

Run your UPCore board with your UP-CRST01 carrier board attached. Including a USB keyboard and HDMI display.

Press Esc key and enter to the BIOS settings.

There, you will see something like:

 Carrier board Vendor: AAEON
 Carrier board Product: UP-CREX rev A0.3_0_0

Board detection in Linux

Open a terminal window for your Linux distro (https://github.com/up-board/up-community/wiki/Software#Operating_Systems).

Check the dmesg log looking for CRST01 board:

dmesg | grep CREX

You will see something like that:

[ 0.000000] ACPI: SSDT 0x000000005B87FFB8 000652 (v01 AAEON UPCREX 00000000 INTL 20160831)

FPGA check

You can check the FPGA chip registers from your Linux machine:

cat /sys/kernel/debug/regmap/AANT0F02\:00/registers

You will see the register values:

10: 0301
11: 1020
20: 4300
40: ffff
41: 003f

LEDs check

Access to the LEDs directories:

sudo -i
cd /sys/class/leds

Turn the green UPC-CRST02 LED on:

echo 255 > upboard\:green\:/brightness

Turn the green UPC-CRST02 LED off:

echo 0 > upboard\:green\:/brightness

DB9 port check

For a quick test for the serial ports, you will need to open your port using picocom in another console:

sudo apt-get install picocom

sudo picocom /dev/ttyUSB0

• RS-232: Connect the pin JP1 in 3-5 and 2-4 and a wire between 2 and 3 pins in the DB9 port.

Send a command to receive in the port console:

sudo echo "Hello World" > /dev/ttyUSB0

• RS-422: Connect the pin JP1 in 3-5 and 4-6 and a wire between 1 and 4 pins in the DB9 port.

Send your command to receive in the port console:

sudo echo "Hello World" > /dev/ttyUSB0

• RS-485:

NOTICE: You will need an RS-485 converter for that.

Connect the pin JP1 in 1-3 and 2-4 and your 485 converters to 1 and 2 pins in the DB9 port.

Send your command to receive in the port console:

sudo echo "Hello World" > /dev/ttyUSB0