EMAC PPC-E4 User manual

PPC-E4
ARM9 SOM-9307M Based Panel PC
User Manual
REV. 1.0
Copyright 2013,
EMAC, Inc.

Table of Contents
Disclaimer.................................................................................................................................................. 1
1PPC-E4 Product Summary ............................................................................................................... 2
1.1 Features........................................................................................................................................................................2
1.2 Standard PPC Specifications........................................................................................................................................3
2PPC-E4 Product Details..................................................................................................................... 5
2.1 Jumper Configuration & Connector Descriptions........................................................................................................5
2.2 Power Connectors........................................................................................................................................................6
2.3 Ethernet........................................................................................................................................................................6
2.4 Serial Ports...................................................................................................................................................................6
2.5 USB Host Ports............................................................................................................................................................8
2.6 Audio Port (option on Rev1 and greater boards) .........................................................................................................8
2.7 LCD Brightness Control ..............................................................................................................................................8
2.8 SD/MMC Card Socket.................................................................................................................................................8
2.9 Keyboard/Mouse..........................................................................................................................................................8
2.10 Analog Inputs...............................................................................................................................................................8
2.11 I/O Expansion ..............................................................................................................................................................9
2.12 Real-Time Clock..........................................................................................................................................................9
2.13 Serial Flash ..................................................................................................................................................................9
2.14 Status LEDs and Reset.................................................................................................................................................9
3Software............................................................................................................................................. 10
3.1 Introduction................................................................................................................................................................10
3.2 Loading Your Software..............................................................................................................................................10
3.2.1 DOWNLOAD.EXE ...........................................................................................................................................10
3.2.2 EBOOT.NB0......................................................................................................................................................10
3.2.3 RedBoot.............................................................................................................................................................10
3.3 Linux Tools................................................................................................................................................................11
3.3.1 Eclipse................................................................................................................................................................11
3.3.2 Eclipse CDT plug-in ..........................................................................................................................................11
3.3.3 ARM EABI Cross Compiler..............................................................................................................................11
3.3.4 EMAC’s LDC ....................................................................................................................................................11
3.4 Linux Operating System ............................................................................................................................................12
3.4.1 Embedded Linux................................................................................................................................................12
3.4.2 Linux Modules...................................................................................................................................................12
3.4.3 Linux 2.6 patches...............................................................................................................................................12
3.4.4 Open Embedded.................................................................................................................................................12
3.5 Windows CE 6.0........................................................................................................................................................13
4Appendix A: Connector Pinouts...................................................................................................... 14
4.1 Ethernet 10/100 Base-T connector (JK1)...................................................................................................................14
4.2 USB Host connector Port A & B (JK3 and JK2).......................................................................................................14
4.2.1 PortA (JK3)........................................................................................................................................................14
4.2.2 PortC (JK2)........................................................................................................................................................14
4.3 USB Dual Host header connector (HDR6) ................................................................................................................14
4.4 Power Jack (JK4).......................................................................................................................................................14
4.5 Power Connector (HDR1)..........................................................................................................................................14
4.6 Micro SD Socket (SOK2)..........................................................................................................................................15
4.7 LCD/Touch/Backlight (SOK3)..................................................................................................................................15
4.8 COM A RS-232 Serial Port (HDR5) ........................................................................................................................16
4.9 COM B RS-232 Serial Port (HDR4).........................................................................................................................16
4.10 COM C RS-232/422/485 Serial Port (HDR3) ..........................................................................................................16
4.11 Misc. I/O (HDR2)......................................................................................................................................................16
5Appendix B: Jumper Settings .......................................................................................................... 17
6Appendix C: Mechanical drawing with dimensions....................................................................... 18

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Disclaimer
EMAC Inc. does not assume any liability arising out of the application or use of any of its products or designs.
Products designed or distributed by EMAC Inc. are not intended for, or authorized to be used in, applications such
as life support systems or for any other use in which the failure of the product could potentially result in personal
injury, death or property damage.
If EMAC Inc. products are used in any of the aforementioned unintended or unauthorized applications, Purchaser
shall indemnify and hold EMAC Inc. and its employees and officers harmless against all claims, costs, damages,
expenses, and attorney fees that may directly or indirectly arise out of any claim of personal injury, death or
property damage associated with such unintended or unauthorized use, even if it is alleged that EMAC Inc. was
negligent in the design or manufacture of the product.
EMAC Inc. reserves the right to make changes to any products with the intent to improve overall quality, without
further notification.

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1PPC-E4 Product Summary
1.1 Features
SoM-210ES Carrier with 200 Pin SODIMM SoM Connector
Cirrus ARM9 EP9307 200Mhz Based SOM-9307 Fanless Low Power Processor installed
MaverickCrunch Hardware Floating-Point Math Coprocessor
Up to 128 MB of SDRAM
Up to 64 MB of Flash
128K Bytes of Serial Flash
Graphic LCD Interface with 2D acceleration
Inexpensive Open-Frame Design
10/100BaseT Ethernet with on-board PHY
3 Serial ports with handshake
2 USB 2.0 Full Speed Host ports with Type A connectors and access to an additional Host port
Battery backed Real Time Clock
Micro SD Flash Card Interface
1 SPI & 1 I2S port
1 Audio Beeper
Timer/Counters and Pulse Width Modulation (PWM) ports
4 Channel 12-bit Analog-to-Digital converter
WQVGA LCD (480 x 272) Resolution with LED Backlight
Touchscreen Interface and Software Controlled Backlight On/Off & Brightness
FREE Eclipse IDE with GCC & GDB development tools
WinCE 6.0 BSP and SDK available

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1.2 Standard PPC Specifications
CPU: Embedded Cirrus EP9307 processor running at 200 MHz with Hardware Floating-Point Math Engine
Main board: SOM-210ES Carrier board
Flash: 64 MB External NOR Intel P30 Flash & 128K of utility serial Flash.
RAM: 64 MB 100 MHz SDRAM.
Video: 2D Accelerated Video Interface
Touchscreen: 12-Bit, 4 wire analog resistive Touchscreen
Flash Disk: SPI serial Micro HCSD interface.
System Reset: Supervisor with external Reset Button provision.
RTC: Battery backed Real Time Clock/Calendar.
Timers: 2, general purpose 16-bit, 1 32-bit timer, & 2 16-bit PWMs.
Watchdog Timer: Reset-on-Timeout
Analog I/O: 4 channel, 12-bit Analog-to-Digital converter (ADC)
GPIO: 4 Programmable 3.3V I/O lines
Expansion: 30-pin, 2mm dual row header
LCD
Display Type: 4.3" TFT Color LCD
Resolution: 400 x 272 WQVGA @ 256K Colors
Dot pitch: 0.66mm x 0.198mm
Luminance: 400 (cd/m²) typical
Contrast Ratio: 500 typical
Viewing Angle: 70° typical
Brightness: Software controlled
Backlight: White LED (10 LEDS)
Touchscreen
Type: 4 Wire Analog Resistive
Resolution: Continuous
Light Transparency: 80%
Controller: Built-In
Driver: WinCE, Linux
Durability: Over one million touches
Ethernet interface
Ethernet MAC: Built-In
Ethernet PHY: Intel/Cortina LXT927ALC with software PHY shutdown control
Ethernet Type: 10/100 Base-T Ethernet
Ethernet Interface: On-Board RJ-45 connector

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Solid-state Flash Disk
Resident: up to 64 MB of on-board NOR flash
Removable: 2 GB of SD, MMC Flash Disk
Utility: 128 KB of serial on-board Flash
Mechanical and Environmental
Dimensions: 4.8 " L x 3.0" W x 1.2" H
Weight: 5.7 oz.
Power Supply Voltage: +5V DC.
Power Consumption: typical <~1.0A. @ 5V DC.
Operating Temperature: 0 ~ 60° C (32 ~ 140° F)
Standard Parts Inventory
PPC-E4 Assembly with 4.3” Touchscreen
Molded plastic LCD mounting bracket and standoffs
SoM-9307-130 System on Module
Resident on-board flash disk loaded with Operating System
Two Serial Port cables

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2PPC-E4 Product Details
2.1 Jumper Configuration & Connector Descriptions
The PPC-E4 comes factory configured. In the event that jumpers need to be verified or modified this section
provides the information required, including instructions on setting jumpers and connecting peripherals, switches
and indicators. Be sure to read all the safety precautions before you begin any configuration procedure. See
Appendix A for connector pinouts and Appendix B for Jumper Settings.
Table 1: Jumpers
Label
Function
Default
JB1
Boot Source Selection
Position A
JB2
Boot Source Selection
Position A
Table 2: Connectors
Label
Function
JK1
Ethernet
JK2
USB C
JK3
USB A
JK4
5v power barrel jack
HDR1
Power
HDR2
I/O Interface
HDR3 COM C
COM 3 Serial Port
HDR4 COM B
COM 2 Serial Port
HDR5 COM A
COM 1 Serial Port
HDR6
USB Host A & B
SOK1
200 pin SOM Socket
SOK2
MicroSD Card Socket
SOK3
LCD &Touch Interface Cable Socket

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2.2 Power Connectors
The PPC-E4 provides two power connectors. HDR4 is a standard PC Floppy disk power connector, four-pin type
connector that mates with standard Floppy disk drive power connector. Using this power input provides for a more
rugged/industrial locking connection. JK4 is a standard 5.5mm barrel jack with an inner diameter of 2.1mm with a
center V+ connection. This jack allows for easy connection to a wall mount power supply (EMAC part number
PER-PWR-00032). The PPC-E4’s power input uses a switching regulator and allows a voltage input of +5V DC.
The pinout for the J1 power connector is as follows:
Pin Signal
1 +5V DC
2 Chassis GND
3 Chassis GND
4 +12V DC (unused)
2.3 Ethernet
The PPC-E4 provides 10/100 Base-T full duplex Ethernet and uses a standard RJ-45 connector. It can be
connected straight to a hub, or another computer via a crossover Ethernet cable. The Ethernet MAC is integrated
into the EP9307 processor and the Cortina (formally Intel) LXT972ALC performs the PHY responsibilities. Activity
and Link LEDs are integrated into the RJ45 connector.
2.4 Serial Ports
The PPC-E4 is equipped with three serial ports, all of which terminate to 10-pin header connectors (see table 2, 3,
& 4 below). Three 10-pin header to male DB9 connector cables are provided, giving easy access to these ports.
Baud rate, stop bits, etc. are all programmable for each port via software.
COM A is an RS232 compatible port with a full compliment of handshaking lines allowing it to communicate with
modems and other devices requiring hardware flow control.
COM B is an RS232 port. This port offers the RTS and CTS handshake lines.
COM C can be configured to RS232, RS422, and RS485 via four software controlled port pins (see table 1
below). To select RS232 set SoM pin 109 & 120 Low and pin 118 & 119 High (this is the default). For RS422 set
SoM pin 109 & 120 High and pin 118 & 119 Low. To select RS485, selectively set SoM pin 109 & 119 as required
while keeping pin 118 Low.
When using COM C in the RS422/485 mode, a terminating resistor (~120 Ohm) is recommended on the two far
ends of the network.
Table 1
SODIMM Pin#
SoM Pin Name
Processor Pin Name(s)
Function
109
COMD_RTS
EGPIO3/485EN
RS422/485 Tx Enable
118
GPIO4
COL0/GPIODO
~RS232 Shutdown
119
GPIO5
COL1/GPIOD1
~RS422/485 Rx Enable
120
GPIO6
COL2/GPIOD2
~RS232 Enable

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Table 2 (COM A Pinout)
#
Pin Description for 10-
Pin Header
Pin Description for DB9
Connector
1
DCD
DCD
2
DSR
RxD
3
RxD
TxD
4
RTS
DTR
5
TxD
GND
6
CTS
DSR
7
DTR
RTS
8
RI
CTS
9
GND
RI
10
NC
-
Table 3 (COM B Pinout)
#
Pin Description for 10-
Pin Header
Pin Description for DB9
Connector
1
NC
NC
2
NC
RxD
3
RxD
TxD
4
RTS
NC
5
TxD
GND
6
CTS
NC
7
NC
RTS
8
NC
CTS
9
GND
NC
10
NC
-
Table 4 (COM C Pinout)
#
Pin Description for 10-Pin
Header
Pin Description for DB9
Connector
1
422/485 TX-
422/485 TX-
2
NC
232 RX, 422/485 TX+
3
232 RX, 422/485 TX+
232 TX, 422/485 RX+
4
RTS
422/485 RX-
5
232 TX, 422/485 RX+
GND
6
CTS
NC
7
422/485 RX-
RTS
8
NC
CTS
9
GND
NC
10
NC
-

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2.5 USB Host Ports
The PPC-E4 provides two, USB 2.0 full speed host ports. USB PortA and PortC can be accessed from the on-
board USB connectors JK3 and JK2.
In addition to the two USB PortA and PortC Host ports, the PPC-E4 provides access to an additional, USB 2.0
Host port. USB PortA and PortB can be accessed from the on-board USB connector HDR6. EMAC can provide
an optional cable (CAB-40-004) to access these ports.
All of the USB ports are equipped with 500mA re-settable Polyfuses. If a USB Device tries to draw more than
500mA from the port, the fuse will open until the device is unplugged or its current requirement is reduced. There
is no software provision for shutting down power to the Ports or detecting when a port is drawing too much
current.
Note: When sizing a power supply, make sure to allow for USB Device consumption. A device can potentially
draw 500mA, therefore these devices could use a total of up to 1 amp of power.
2.6 Audio Port (option on Rev1 and greater boards)
The PPC-E4 provides Audio Line Out and Line In capability through a 10-pin 2mm header. A special cable
converts the signals present on the header to two miniature audio jacks. The processor interfaces to the Audio
CODEC through its I2S interface. Command control of the CODEC is done using the processor’s SPI interface.
The CODEC is the Cirrus CS4271, which is a high performance 24-bit Stereo CODEC offering superior sound
quality.
Both the input and output are line level. You will probably not be able to drive an unamplified speaker although
standard headphones will work. Likewise, an un-amplified microphone probably will not work as an input although
the line out of a CD player will work.
2.7 LCD Brightness Control
The PPC-E4 offers LCD brightness control that can change the brightness of the LCD via software. The LCD
utilizes LED backlighting. The board provides the backlight with approximately 30 volts at about 20mA. The
processor provides a PWM that is used to drive the LCD backlight. Changing the duty-cycle of the PWM directly
affects the brightness of the LCD. In addition, the backlight can be turned off by reducing the PWM rate to 0. This
allows screensaver software to automatically turn off the backlight when the unit is not being used and to
automatically turn it back on when the touchscreen is touched.
2.8 SD/MMC Card Socket
The PPC-E4 provides a high capacity MicroSD socket. This socket is hot-swappable and can accept a wide
variety of Flash Cards. There is not a native SD card interface on the Cirrus EP9307 processor so the SPI bus is
utilized. A green activity light (LED LD2) is located towards the left side of the socket. When the processor is
accessing the Flash card this LED will be lit and the card should not be removed at this time. A card that is written
to by the PPC-E4 can be read by another computer using an MicroSD card reader. The MicroSD interface is
compatible with Standard and High Capacity MicroSD cards.
2.9 Keyboard/Mouse
The PPC-E4 does not provide a PS/2 type keyboard/mouse interface. However, a USB keyboard and mouse can
be used if required.
2.10 Analog Inputs
The analog inputs are available on HDR2 (see table 5 below) and are labeled as analog_04, analog_05,
analog_06 and analog_07. Voltages applied to the inputs must be in the range of 0V to 3.3V with reference to