EMAC PPC-E4-3354 User Manual

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PPC-E4-3354

ARM Cortex-A8 SOM-3354M

Based Panel PC

User Manual

REV. 1.0

EMAC, Inc.

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Table of Contents

1 PPC-E4-3354 Product Summary ......................................................................................... 4

1.1 Features .......................................................................................................................................................4

1.2 Standard PPC Specifications .......................................................................................................................5

2 PPC-E4-3354 Product Details ............................................................................................. 7

2.1 Jumper Configuration & Connector Descriptions .........................................................................................7

2.2 Power Connectors ........................................................................................................................................8

2.3 Ethernet ........................................................................................................................................................8

2.4 Serial Ports ...................................................................................................................................................8

2.5 USB Host Ports ......................................................................................................................................... 10

2.6 Audio Port .................................................................................................................................................. 10

2.5 LCD Brightness Control ............................................................................................................................ 10

2.6 MicroSD Card Socket ................................................................................................................................ 11

2.7 Keyboard/Mouse ....................................................................................................................................... 11

2.8 Analog Inputs ............................................................................................................................................ 11

2.9 I/O Expansion ............................................................................................................................................ 11

2.10 Real-Time Clock ....................................................................................................................................... 11

2.11 Serial Flash ............................................................................................................................................... 12

2.12 Status LEDs and Reset ............................................................................................................................. 12

2.13 CAN Port ................................................................................................................................................... 12

3 Software ............................................................................................................................ 13

3.1 U-Boot ....................................................................................................................................................... 13

3.2 Embedded Linux ....................................................................................................................................... 13

3.2.1 Linux with Xenomai Real Time Extensions........................................................................................ 13

3.2.2 Linux Packages .................................................................................................................................. 13

3.2.3 Linux Patches .................................................................................................................................... 13

3.3 Qt Creator .................................................................................................................................................. 14

3.4 ARM EABI Cross Compiler ....................................................................................................................... 14

4 Appendix A: Connector Pinouts ......................................................................................... 15

4.1 Ethernet 10/100 Base-T connector (JK3) ................................................................................................. 15

4.2 USB Host connector Port A & B (HDR6) .................................................................................................. 15

4.3 USB Port C OTG (JK2) ............................................................................................................................. 15

4.4 Power Jack (JK1) ...................................................................................................................................... 15

4.5 Power Connector (CN1) ............................................................................................................................ 15

4.6 CAN Interface (CN2) ................................................................................................................................. 15

4.7 LCD/Touch/Backlight (CN3) ...................................................................................................................... 16

4.8 Stereo Audio Input (CN4) .......................................................................................................................... 16

4.9 Stereo Audio Output (CN5) ....................................................................................................................... 17

4.10 Micro SD Socket (SOK2) .......................................................................................................................... 17

4.11 COM A RS-232 Serial Port (HDR4) ......................................................................................................... 17

4.12 COM B RS-232 Serial Port (HDR3) ......................................................................................................... 17

4.13 COM C RS-232/422/485 Serial Port (HDR2) ............................................................................................ 18

4.14 COM D RS-232 Serial Port (HDR5) ......................................................................................................... 18

4.15 Misc. I/O (HDR1) ....................................................................................................................................... 18

5 Appendix B: Jumper Settings ........................................................................................ 19

6 Appendix C: Mechanical drawing with dimensions...................................................... 20

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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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1 PPC-E4-3354 Product Summary

1.1 Features

 SoM-212ES Carrier with 200 Pin SODIMM SoM Connector  Texas Instruments AM3354 ARM Cortex-A8 1Ghz processor

 4GB of eMMC Flash  16 MB of Serial Flash  512MB of SDRAM

 Graphic LCD & Touch Interface  Inexpensive Open-Frame Design  1x 10/100BaseT Ethernet with on-board PHY  3x RS232 ports with handshaking  1x RS232/422/485 port  2x USB 2.0 (High Speed) Host port  1x USB 2.0 (High Speed) OTG port  Battery backed Real Time Clock  1x Micro SD Flash Card Sockets  2x SPI & 1x I2C port  1x Audio Beeper  2x Timer/Counters and Pulse Width Modulation (PWM) ports  4x Channel 12-bit Analog-to-Digital converter  WQVGA LCD (480 x 272) Resolution with LED Backlight  Software Controlled Backlight On/Off & Brightness  FREE Qt Creator based IDE  Optional Power Over Ethernet (POE)  Optional I2S Audio with Line-in/out

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1.2 Standard PPC Specifications

 CPU: Texas Instruments AM3354 ARM Cortex-A8 processor running at 1 GHz.  Module: SOM-3354M  Carrier board: SOM-212ES  Flash: 4 GB of eMMC Flash & 16 MB SPI Flash.  RAM: 512MB of DDR3L SDRAM.  Touchscreen: 12-Bit, 4-wire analog resistive touchscreen interface.  Flash Disk: 4 GB eMMC Resident Flash  System Reset: Processor Internal Reset Management with External Reset Button provision.  RTC: Real-Time Clock Internal with battery-backed provision  Timers: 2 Timer/Counter/PWMs.  Watchdog Timer: Processor based Watchdog Timer.  Analog I/O: 8 channels total, 4 of which is shared by the resistive touchscreen.  Digital I/O: Many general purpose I/Os multiplexed with peripheral interfaces.  Power: Power Management Controller allows selectively shutting down on processor I/O functionality and

running from a slow clock.

LCD

 Display Type: 4.3" TFT Color LCD  Resolution: 480 x 272 WQVGA @ 256K Colors  Dot pitch: 0.198mm x 0.198mm  Luminance: 330 (cd/m²)  Viewing Direction: 6 o'clock  Brightness: Software controlled  Backlight: White LED (10 LEDS)

Touchscreen

 Type: 4 Wire Analog Resistive  Resolution: Continuous  Controller: Built-In  Driver: Linux  Transparency: 80%  Durability: Over one million touches

Ethernet interface

 Ethernet MAC: Built-In  Ethernet PHY: Micrel KSZ8041NL with software PHY shutdown control  Ethernet Type: 10/100 Base-T Ethernet  Ethernet Interface: On-Board RJ-45 connector  Ethernet POE: Optional

Solid-state Flash Disk

 Internal: 4GB eMMC Resident Flash  External: Standard SD Removable Flash Card interface

Mechanical and Environmental

 Dimensions: 4.8 " L x 3.0" W x 1.2" H  Weight: 5.7 oz.  Power Supply Voltage: +5V DC or 8 to 35V DC.  Power Consumption: typical <~1.0A. @ 5V DC.  Operating Temperature: 0 ~ 60° C (32 ~ 140° F)

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Standard Parts Inventory

 PPC-E4-3354 Assembly with 4.3” Touchscreen  Molded plastic LCD mounting bracket and standoffs  SoM-3354M System on Module  Resident on-board flash disk loaded with Linux Operating System  Four Serial Port cables

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2 PPC-E4-3354 Product Details

Label

Function

Default

JB1

Boot0 Source Selection

Position B

JB2

Boot1 Source Selection

Position A

JB3

Flash Write Protect

Position NP

JP7

COM C RS4xx RX termination

Position OPN

Label

Function

JK1

5Vdc Power Barrel Jack

JK2

USB OTG PortC

JK3

Ethernet

HDR1

I/O Interface

HDR2 COM C

COM 3 Serial Port

HDR3 COM B

COM 2 Serial Port

HDR4 COM A

COM 1 Serial Port

HDR5 COM D

COM 4 Serial Port

HDR6

USB Port A & B

SOK1

200 pin SOM Socket

SOK2

MicroSD Card Socket

CN1

Alternate Power Interface (5Vdc or 8 to 36Vdc)

CN2

CAN Interface

CN3

LCD &Touch Interface Cable Socket

CN4

Audio Input

CN5

Audio Output

2.1 Jumper Configuration & Connector Descriptions

The PPC-E4-3354 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

Table 2: Connectors

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2.2 Power Connectors

The PPC-E4-3354 provides two power connectors. CN1 is a standard four-pin type, PC floppy disk power connector that mates with standard floppy disk drive power connectors. Using this power input provides for a more rugged/industrial polarized locking connection. JK1 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 5V DC wall mount power supply (EMAC part number PER-PWR-00032). The PPC-E4-3354’s power input uses a switching regulator and allows a voltage input of +5V DC to 36V DC only if you are using the CN1 power connector. NOTE: If using JK1 a 5V DC supply must be used.

 To power the PPC-E4-3354 from 5V DC use either the JK1 or Pin #1 on CN1.  To power the PPC-E4-3354 from 8V to 36V DC use Pin #4 on CN1.  Alternatively the PPC-E4-3354 can be power from a Power Over Ethernet (POE) Switch

provided the SoM-212 POE option is installed.

The pinout for the CN1 power connector is as follows:

Pin Signal 1 +5V DC

2 Chassis GND

3 Chassis GND 4 +Vin DC (+8 to +36V)

Note: Do not drive both the +5V and the +Vin power inputs. Drive one or the other.

2.3 Ethernet

The PPC-E4-3354 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 AM3354 ARM Cortex-A8 processor and the Micrel KSZ8041NL performs the PHY responsibilities. Activity and Link LEDs are integrated into the RJ45 connector.

2.4 Serial Ports

The PPC-E4-3354 is equipped with three dedicated RS232 ports, all of which terminate to 10-pin header connectors (see Table 4, 5, & 7 below) and a RS232/422/485 port (Table 6). Four 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 complement of handshaking lines allowing it to communicate with modems and other devices requiring hardware flow control.

COM B is an RS232 port (Console 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 3

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. The processor provides for Auto 485 by having the transmitter automatically turned on when required, eliminating the need to manually control this line via RTS (see processor manual).

When using COM C in the RS422/485 mode, a terminating resistor (~120 Ohm) is recommended on the two far ends of the network. JP7 moved to the TRM position will terminate the receiver with 124 ohms. For more information on serial ports and software configuration go to:

http://wiki.emacinc.com/wiki/Example_serport212

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SODIMM Pin#

SoM Pin Name

Processor Pin Name(s)

Function

109

COMC_RTS

RTS2/PC9

RS422/485 Tx Enable

118

GPIO4

ISI_D3/PB23

~RS232 Shutdown

119

GPIO5

ISI_D4/PB24

~RS422/485 Rx Enable

120

GPIO6

ISI_D5/PB25

~RS232 Enable

Pin Description for 10Pin Header

Pin Description for DB9 Connector

DCD

DSR

RxD

TxD

RTS

DTR

TxD

GND

CTS

DSR

DTR

RTS

CTS

GND

Pin Description for 10Pin Header

Pin Description for DB9 Connector

NC 2 NC

RxD

TxD

RTS

TxD

GND

CTS

NC 7 NC

RTS

CTS

GND

Pin Description for 10-Pin Header

Pin Description for DB9 Connector

422/485 TX-

232 RX, 422/485 TX+

232 TX, 422/485 RX+

RTS

422/485 RX-

232 TX, 422/485 RX+

GND

CTS

422/485 RX-

RTS

CTS

GND

COM D is an RS232 port. This port offers the RTS and CTS handshake lines.

Table 3

Table 4 (COM A Pinout) (HDR4)

Table 5 (COM B Pinout) (HDR3)

Table 6 (COM C Pinout) (HDR2)

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Pin Description for 10-Pin Header

Pin Description for DB9 Connector

RxD

TxD

RTS

TXD

GND

CTS

RTS

CTS

GND

Table 7 (COM D Pinout) (HDR5)

2.5 USB Host Ports

The PPC-E4-3354 provides two USB 2.0, high speed host ports (PortA) and (PortB) and one USB 2.0, high speed OTG port (PortC). USB PortA and PortB can be accessed from HDR6. PortC can be accessed from the on-board USB connector JK2.

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

The PPC-E4-3354 provides optional Audio Line Out and Line In capability through a two 4-pin 1.25mm headers (CN4 & CN5). A special cable (included with the Audio Option) converts the signals present on the header to two standard 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.

2.5 LCD Brightness Control

The PPC-E4-3354 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 a constant current source of 20mA which results in a voltage of approximately 30 volts. The processor provides a PWM (SoM Pin #85) 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 setting SoM Pin #114 low. 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.

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Signal

GND

3.3V

I2DAT

I2CLK

~RESET_OUT

SPI_MISO

SPI_CLK

SPI_MOSI

SPI_CS1

SPI_CS0

SPI_CS3

GPIO07

ANALG_05

GPIO13

ANALG_06

IROA

ANALG_04

GPIO15

ANALG_07

GPIO12

2.6 MicroSD Card Socket

The PPC-E4-3354 provides a high capacity MicroSD socket. This socket is hot-swappable and can accept a wide variety of Flash Cards. 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-E4-3354, can be read by another computer, using a MicroSD card reader. The MicroSD interface is compatible with Standard and High Capacity MicroSD cards.

2.7 Keyboard/Mouse

The PPC-E4-3354 does not provide a PS/2 type keyboard/mouse interface. However, a USB keyboard and mouse can be used if required.

2.8 Analog Inputs

The analog inputs are available on HDR1 (see table below) and are labeled as analg_04, analg_05, analg_06 and analog_07. Voltages applied to the inputs must be in the range of 0V to 3.3V with reference to ground. Different operating systems may provide access to the analog inputs differently or even not at all. See the operating system documentation for details. Note: In some cases using the Analog Inputs can have adverse effect on the touchscreen sensitivity.

2.9 I/O Expansion

The Processor used by the PPC-E4-3354 provides a number of unused I/O lines. The PPC-E4-3354 provides access to these lines on connector HDR1. This 20-pin dual row header contains GPIO lines, SPI bus, I2C bus, A/D lines, interrupts and power pins. Signal names listed in the table below are the SoM names as defined in the SoM 200 pin specification.

Table 8

2.10 Real-Time Clock

The PPC-E4-3354 emulates a real time clock using the internal real time clock on the AM3354 processor. Battery backup is provided from the carrier board using the VSTBY pin. The real-time clock is a precise timer which can generate interrupts on intervals specified by the user.

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SODIMM

Pin#

SoM

Pin Name

Processor

Pin Name(s)

Port Line

Pin Description

CANTX

MII1_TXD3

GPIO 0_16

CAN Transmit

CANRX

MII1_TXD2

GPIO 0_17

CAN Receive

2.11 Serial Flash

In addition to the eMMC Resident Flash is 16MB of SPI based bootable serial flash. To select this device the Boot1 jumper JB2 must be in the A position, Boot0 must be in the A position, and SPI0_CS0 must be active. JB3 can be used to Write Protect the serial flash when in the FWP position. The serial flash can be used to Boot from or can be a handy place to store non-volatile configuration data. See the software drivers for details on accessing this. Note: Use of the SPI externally can affect the booting of the system if proper interfacing is not followed.

The Module is capable of booting out of Serial, Ethernet, SPI Flash, or USB. Booting from eMMC is only possible with a custom populated version. Contact EMAC for more details. Minimum purchase quantities apply.

2.12 Status LEDs and Reset

The PPC-E4-3354 provides a status LED on the SoM-3354M module, LD1 (Green) which is connected to processor port pin GPIO3_4. Additionally, a Green power LED (LD1) and a SD Activity status LED (LD2) are provided on the Carrier.

Also provided is a Reset Button (PB1). Pressing this button will cause the system to reset.

2.13 CAN Port

The PPC-E4-3354 is constructed from the SoM-3354M module and the SoM-212 carrier. The SoM-212 carrier provides for an un-isolated CAN port (CN2). The AM3354 provides a High-End Controller (HECC) internally. The CAN interface lines are directed to the dedicated CAN pads on the SoM connector as shown in the table below.

There is no provision for CAN network termination on the PPC-E4-3354. CAN termination should be done externally at the two far ends of the network.

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3 Software

The PPC-E4-3354 offers a wide variety of software support from both open source and proprietary sources. The Module hardware core utilizes the TI AM3354 processor, which is supported by Linux.

For more information on Linux Software Support, please visit the EMAC Wiki Software Section at:

http://wiki.emacinc.com/wiki/product_wiki

3.1 U-Boot

EMAC utilizes Das U-Boot for its ARM based products. U-Boot is an open source/cross-architecture platform independent bootloader. It supports reading and writing to the flash, auto-booting, environmental variables, and TFTP. Das U-boot can be used to upload and run and/or reflash the OS or to run stand-alone programs without an OS. Products are shipped with a valid MAC address installed in flash in the protected U-boot environmental variable “ethaddr”. At boot time U-Boot automatically stores this address in a register within the MAC, which effectively provides it to any OS loaded after that point.

3.2 Embedded Linux

EMAC Open Embedded Linux is an open source Linux distribution for use in embedded systems. The EMAC OE Linux Build is based on the Open Embedded (www.openembedded.org) Linux build system. Open Embedded is a superior Linux distribution for embedded systems. Custom Linux builds are also available on request.

The distribution contains everything a user could expect from a standard Linux kernel: powerful networking features, advanced file system support, security, debugging utilities, and countless other features.

The basic root file system includes:

 Busybox  Hotplugging support  APM utilities for power management  Openssh SSH server  lighttpd HTTP server  JJFS2 or EXT4 file system with utilities

3.2.1 Linux with Xenomai Real Time Extensions

Xenomai provides real time extensions to the kernel and can be used to schedule tasks with hard deadlines and s latencies. The Xenomai build is an additional module that can be added to the standard Linux kernel and is available for a one-time inexpensive support/installation fee.

http://www.xenomai.org/

3.2.2 Linux Packages

EMAC provides support for many Linux Packages such as: PHP, SQLite, Perl, SNMP, DHCP Server, etc. As with the Xenomai Package, other Packages can be added to the standard Linux file system and are available for a one-time inexpensive support/installation fee.

3.2.3 Linux Patches

In addition to standard Embedded Linux support, EMAC has released a number of patches and device drivers from the open source community and from internal EMAC engineering into its standard distribution. Along with kernel patches, EMAC provides the binaries for the kernel and root file system.

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3.3 Qt Creator

Qt Creator is a cross-platform IDE (Integrated Development Environment) tailored to the needs of Qt developers but works well for Headless applications as well. EMAC provides sample code as projects that can be imported into Qt Creator. Qt Creator supports remote deployment and source debugging.

https://qt-project.org/wiki/Category:Tools::QtCreator

3.4 ARM EABI Cross Compiler

The popular open source gcc compiler has a stable build for the ARM family. EMAC uses the 4.9.1 version of the ARM EABI compiler. The Embedded Linux kernel and EMAC Qt Creator projects use this compiler for building ARM stand alone, and OS specific binaries. The EMAC Qt Creator provides source level debugging over Ethernet or serial using gdbserver. The Linux binaries for the ARM EABI cross compiler are available online along with the SDK. See the EMAC wiki for further information.

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4 Appendix A: Connector Pinouts

4.1 Ethernet 10/100 Base-T connector (JK3)

Pin Signal

1 XMT+ 2 XMT3 RCV+ 4 N/C 5 N/C 6 RCV7 N/C 8 N/C

4.2 USB Host connector Port A & B (HDR6)

Pin Signal Pin Signal

1 USB_A _ VBUS 2 USB_B _VBUS 3 USB_A _HOST+ 4 USB_B _HOST+ 5 USB_A _HOST- 6 USB_B _HOST7 GND 8 GND 9 NC 10 NC

4.3 USB Port C OTG (JK2)

Pin Signal

1 USB_OTG_VBUS 2 USB_Data- 3 USB_Data+ 4 USB_OTG_ID

5 GND

4.4 Power Jack (JK1)

Pin Signal

Center 5V DC Barrel GND

4.5 Power Connector (CN1)

Pin Signal

1 5V DC 2 GND 3 GND 4 +Vin (+8v to 36V)

4.6 CAN Interface (CN2)

Pin Signal

1 CAN+ 2 CAN3 GND

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4.7 LCD/Touch/Backlight (CN3)

Pin Signal

FN1 GND1 GND 2 BCKLT_LEDA 3 GND 4 3.3V 5 RED0_R 6 RED1_R 7 RED2_R 8 RED3_R 9 RED4_R 10 RED5_R 11 RED6_R 12 RED7_R 13 GREEN0_R 14 GREEN1_R 15 GREEN2_R 16 GREEN3_R 17 GREEN4_R 18 GREEN5_R 19 GREEN6_R 20 GREEN7_R 21 BLUE0_R 22 BLUE1_R 23 BLUE2_R 24 BLUE3_R 25 BLUE4_R 26 BLUE5_R 27 BLUE6_R 28 BLUE7_R 29 GND 30 LCDCLOCK_R 31 LCDPWR_ON/~OFF 32 NC 33 NC 34 LCDEN_R 35 NC 36 GND 37 TOUCHF_X+ 38 TOUCHF_Y+ 39 TOUCHF_X40 TOUCHF_YFN2 RGND

4.8 Stereo Audio Input (CN4)

Pin Signal

1 Right In 2 GND 3 GND 4 Left In

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4.9 Stereo Audio Output (CN5)

Pin Signal

1 Right Out 2 GND 3 GND 4 Left Out

4.10 Micro SD Socket (SOK2)

Pin Signal

1 DAT2 2 CD/DAT3 3 CMD 4 VCC (3.3V) 5 SCLK 6 GND 7 DAT0 8 DAT1 9 SD Card Detect

4.11 COM A RS-232 Serial Port (HDR4)

Pin HD3 Signal DB9 Signal

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 -

4.12 COM B RS-232 Serial Port (HDR3)

Pin HD3 Signal DB9 Signal

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 --

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4.13 COM C RS-232/422/485 Serial Port (HDR2)

Pin HD3 Signal DB9 Signal

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 -

4.14 COM D RS-232 Serial Port (HDR5)

Pin HD3 Signal DB9 Signal

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 --

4.15 Misc. I/O (HDR1)

Pin Signal Pin Signal

1 GND 2 3.3V 3 I2DAT 4 I2CLK 5 RESET_OUT 6 SPI_MI 7 SCLK 8 SPI_MOSI 9 SPI_CS1 10 SPI_CS0 11 SPI_CS3/FRM 12 GPIO07 13 ANALG_05 14 GPIO13 15 ANALG_06 16 IROA 17 ANALG_04 18 GPIO15 19 ANALG_07 20 GPIO12

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5 Appendix B: Jumper Settings

JB1 Boot Source Selection

Jumper Position Setting Pins 2 & 3 A Line pulled LOW Pins 1 & 2* B Line pulled HIGH

* Default setting

JB2 Boot Option Selection

Jumper Position Setting Pins 2 & 3* A Line pulled LOW Pins 1 & 2 B Line pulled HIGH

* Default Setting

JB3 Flash Write Protect Selection

Jumper Position Setting Pins 1 & 2 A Flash Write Disable Pins 2 & 3* B Flash Write Enable

* Default Setting

JP7 COM C RS4xx termination

Jumper Position Setting Pins 1 & 2 TRM Terminated with 124 ohms Pins 2 & 3* OPN Open (no termination)

* Default Setting

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6 Appendix C: Mechanical drawing with dimensions