PocketBeagle Overview

PocketBeagle is built around Octavo Systems’ OSD335x-SM System-In-Package that integrates a high-performance Texas Instruments AM3358 processor, 512MB of DDR3, power management, nonvolatile serial memory and over 100 passive components into a single package. This integration saves board space by eliminating several packages that would otherwise need to be placed on the board, but more notably simplifies our board design so we can focus on the user experience.

The compact PocketBeagle design also offers access through the expansion headers to many of the interfaces and allows for the use of add-on boards called PocketCapes and Click Boards from MikroElektronika, to add many different combinations of features. A user may also develop their own board or add their own circuitry.

PocketBeagle Features and Specification

This section covers the specifications and features of the board in a chart and provides a high level description of the major components and interfaces that make up the board.

Table 22 PocketBeagle Features
Feature
System-In-Package	Octavo Systems OSD335x-SM in 256 Ball BGA (21mm x 21mm)
SiP Incorporates
Processor	Texas Instruments 1GHz Sitara™ AM3358 ARM® Cortex®-A8 with NEON floating-point accelerator
Graphics Engine	Imagination Technologies PowerVR SGX530 Graphics Accelerator
Real-Time Units	2x programmable real-time unit (PRU) 32-bit 200MHz microcontrollers with single-cycle I/O latency
Coprocessor	ARM® Cortex®-M3 for power management functions
SDRAM Memory	512MB DDR3 800MHz RAM
Non-Volatile Memory	4KB I2C EEPROM for board configuration information
Power Management	TPS65217C PMIC along with TL5209 LDO to provide power to the system with integrated 1-cell LiPo battery support
Connectivity
SD/MMC	Bootable microSD card slot
USB	High speed USB 2.0 OTG (host/client) micro-B connector
Debug Support	JTAG test points and gdb/other monitor-mode debug possible
Power Source	microUSB connector, also expansion header options (battery, VIN or USB-VIN)
User I/O	Power Button with press detection interrupt via TPS65217C PMIC
Expansion Header
USB	High speed USB 2.0 OTG (host/client) control signals
Analog Inputs	8 analog inputs with 6 @ 1.8V and 2 @ 3.3V along with 1.8V references
Digital I/O	44 digital GPIOs accessible with 18 enabled by default including 2 shared with the 3.3V analog input pins
UART	3 UARTs accessible with 2 enabled by default
I2C	2 I2C buses enabled by default
SPI	2 SPI buses with single chip selects enabled by default
PWM	4 Pulse Width Modulation outputs accessible with 2 enabled by default
QEP	2 Quadrature encoder inputs accessible
CAN	2 CAN bus controllers accessible

OSD3358-512M-BSM System in Package

The Octavo Systems OSD3358-512M-BSM System-In-Package (SiP) is part of a family of products that are building blocks designed to allow easy and cost-effective implementation of systems based in Texas Instruments powerful Sitara AM335x line of processors. The OSD335x-SM integrates the AM335x along with the TI TPS65217C PMIC, the TI TL5209 LDO, up to 1 GB of DDR3 Memory, a 4 KB EEPROM for non-volatile configuration storage and resistors, capacitors and inductors into a single 21mm x 21mm design-in-ready package.

With this level of integration, the OSD335x-SM family of SiPs allows designers to focus on the key aspects of their system without spending time on the complicated high-speed design of the processor/DDR3 interface or the PMIC power distribution. It reduces size and complexity of design.

Full Datasheet and more information is available at octavosystems.com/octavo_products/osd335x-sm/

Board Component Locations

This section describes the key components on the board, their location and function.

Figure below shows the locations of the devices, connectors, LEDs, and switches on the PCB layout of the board.

Key Components

The Octavo Systems OSD3358-512M-BSM System-In-Package is the processor system for the board
P1 and P2 Headers come unpopulated so a user may choose their orientation
User LEDs provides 4 programmable blue LEDs
Power BUTTON can be used to power up or power down the board (see section 3.3.3 for details)
USB 2.0 OTG is a microUSB connection to a PC that can also power the board
Power LED provides communication regarding the power to the board
microSD slot is where a microSD card can be installed.