Texas Instruments DEV-RF002 Manuale utente

B E A G L E B O N E B L E / W I F I C A P E

DEV-RF002 Datasheet

Version 1.3- May 2015

This document is the property of, and is maintained by Dallas Logic Corporation. Please email any questions,

corrections, or suggestions to requests@dallaslogic.com. Dallas Logic Corporation shall under no

circumstances be liable for damages or related expenses resulting from the use of this document. Your use of

this information indicates your understanding of, and agreement with the disclaimer located on the last page of

this document.

Table of Revisions

Revision

Author

Date

Description

0.1

03-20-2015

Initial

1.0

05-27-2015

Pre-release

1.3

05-31-2015

Minor edits before release

Table of Contents

1Introduction....................................................................................................................5

1.1 DEV-RF002 Module Block Diagram........................................................................................................ 7

2RF Section......................................................................................................................7

2.1 CC2650...................................................................................................................................................... 7

2.2 CC3100...................................................................................................................................................... 8

2.3 Antenna Configuration Options ............................................................................................................. 8

3Digital Specifications ....................................................................................................9

3.1 CC2650 Hardware .................................................................................................................................... 9

3.1.1 CC2650 Pin Definitions........................................................................................................................................... 9

3.1.2 CC2650 programming interface............................................................................................................................ 10

3.2 CC3100 Hardware .................................................................................................................................. 10

3.2.1 CC3100 Pin Definitions......................................................................................................................................... 10

3.2.2 CC3100 Programming Interface ........................................................................................................................... 11

3.3 Beagle Bone Black Configuration Interface........................................................................................ 12

3.4 MAX10 Software Support...................................................................................................................... 12

3.4.1 Software Support.................................................................................................................................................. 12

3.5 Beagle Bone Black Board Support ...................................................................................................... 13

3.5.1 Software Support.................................................................................................................................................. 13

4Power Requirements...................................................................................................13

4.1 Voltage and Current Requirements ..................................................................................................... 13

5Mechanical and Environmental..................................................................................14

5.1 Mechanical.............................................................................................................................................. 14

5.2 Environmental........................................................................................................................................ 15

6References ...................................................................................................................16

7Disclaimer ....................................................................................................................16

List of Figures

Figure 1-1 DEV-RF002 module ......................................................................................5

Figure 1-2 DEV_RF002 P1 pin header...........................................................................6

Figure 1-3 DEV-RF002 P2 pin header............................................................................6

Figure 1-4 DEV-RF002 functional block diagram............................................................7

Figure 2-1 DEV-RF002 Antenna Selection Configuration ..............................................9

Figure 3-1 CC2650 cJTAG programming header.........................................................10

Figure 3-2 DEV-RF002 expansion EEprom circuit........................................................12

Figure 5-1 DEV-RF002 Module Mechanical Dimensions..............................................14

List of Tables

Table 3-1 CC2650 pin description ..................................................................................9

Table 3-2 CC3100 pin description ................................................................................11

Table 4-1 DEV-RF002 Voltage and Current by device .................................................13

1Introduction

The DEV-RF002 is a combination Wi-Fi / BLE SMART communication module.

Below is a summary of the DEV-RF002 feature set:

Texas instruments CC2650 SimpleLink™ Multi-standard wireless MCU (configured for BLE Smart).

- Dedicated CJTAG programming header.

- Dedicated Taiyo Yuden AH316M245001 chip antenna.

Texas instruments CC3100 SimpleLink™ Wi-Fi® and Internet-of-Things solution for MCU applications.

- Dedicated 8Mbit SPI configuration flash.

- Dedicated Taiyo Yuden AH316M245001 chip antenna.

Two 46 pin, 2.56mm pin headers (Beagle Bone Black compatible).

RF switch footprint (future use).

Beagle Bone Black configuration switch and serial flash footprint.

Figure 1-1 DEV-RF002 module

The RF002 is compatible with Arrow’s MAX10 DECA board and the Beagle Bone Black via two 46 pin headers. The

diagrams below provide the pin definitions for the P1 & P2 headers.

Figure 1-2 DEV_RF002 P1 pin header

Figure 1-3 DEV-RF002 P2 pin header

1.1 DEV-RF002 Module Block Diagram

The diagram below provides an overview of the DEV-RF002’s interconnect.

CC2650

Multistandard

(BLE SMART)

Wireless MCU

CC3100

WiFi Network

Processor

Chip Antenna

8 Mbit

SFlash

P1 & P2 Headers

SPI Interface

I2C Interface

GPIO [9..0]

SPI Interface

UART Interface

Optional

BBB

SFLASH

Optional

RF Switch

Figure 1-4 DEV-RF002 functional block diagram

2RF Section

2.1 CC2650

The DEV-RF002 utilizes the Texas Instruments CC2650 to provide BLE connectivity. The CC2650 is a flexible

wireless MCU that can be configured to provide various connectivity standards and includes numerous

peripherals. The flexibility of the CC2650 allows it to be configured in many ways with respect to the RF

interface, connectivity protocol, clocks, and power supplies. The default DEV-RF002 connectivity protocol is

Bluetooth SMART. The protocol stack is stored internally in the CC2650 and is executed bya dedicated on-chip

ARM Cortex®-M0 processor.

The two primary clocks for the CC2650 are provided by on board 24 MHz and 32.768 KHz crystals. While this

configuration does not utilize any loading capacitors on the 24 MHz oscillator, the board design includes them to

allow the use of different crystals as long as they have the same package.

The supply voltage configuration for the CC2650 utilizes the internal DC-DC converter. The 3.3VDC power rail

from the P1 header is filtered and powers the three VDDS pins on the CC2650 along with the VDDS_DCDC pin.

The output of the internal DC-DC converter is filtered and used to power the VDDR and VDDR_RF pins of the

CC2650.

The CC2650 RF output pins (RF_P and RF_N) are combined into a single ended RF signal in a LC balun

network before being routed to a Taiyo Yuden AH316M245001 chip antenna.

2.2 CC3100

The DEV-RF002 utilizes the Texas Instruments CC3100 to provide WiFi connectivity. The CC3100 is part of the

SimpleLink Wi-Fi family that supports implementation of Internet connectivity. The CC3100 device integrates the

required Wi-Fi and internet protocols.

The CC3100 includes an 802.11 b/g/n radio, baseband, and MAC with a crypto engine for secure internet

connections with 256-bit encryption. The CC3100 device supports multiple operating modes including Station,

Access Point, and Wi-Fi Direct.The device supportsWPA2 personal and enterprise security and WPS 2.0 along

with embedded TCP/IP and TLS/SSL stacks, HTTP server, and multiple Internet protocols.

The two primary clocks for the CC3100 on the DEV-RF002 are provided by on board 40 MHz and 32.768 KHz

crystals.

The 3.3VDC power rail from the P1 header is filtered and powers the three internal DC-DC converters of the

CC3100 (Analog, Digital, and PA) along with the VDD pins for the input I/O voltage rail and the onboard

configuration flash.

The CC3100 UART and SPI interfaces are routed to the P1 and P2 headers.

Configuration data for the CC3100 is stored in an on board 8Mbit SPI flash. The flash storage is connected to

the CC3100 FLASH_SPI pins.

The RF output pin (RF_BG) is routed to a Taiyo Yuden AH316M245001 chip antenna.

2.3 Antenna Configuration Options

The default configuration of the DEV-RF002 has the BLE and WiFi radios each connected to independent chip

antennas. The antennas are physically located on opposite ends of the DEV-RF002 board to maximize the

isolation between the antennas. This is the preferred configuration for the DEV-RF002 board.

The DEV-RF002 has been designed to allow the BLE and WiFi radios to share a common antenna. To utilize

this functionality, several parts must be placed on the board that are not normally populated. These include 47

pF capacitors in C25, C28, C29, and C40 along with 0.1 uF capacitors in C39 and C41. In addition the RF switch

MASW-007935 must be installed in U3. Finally, capacitors C24 and C42 must be removed from the board.

Once these changes are implemented the signals WiFi_ANT and BLE_ANT on the P2 header may be used to

connect either the BLE orWiFi radio to the chip antenna located in reference designator A4.

Figure 2-1 DEV-RF002 Antenna Selection Configuration

3Digital Specifications

3.1 CC2650 Hardware

The DEV-RF002 supports several communication interfaces which are provided by the CC2650 device.

Included are one 4 wire SPI interface and one I2C interface. These interfaces are provided as pin connections

on the modules P1 and P2 headers. Ten additional GPIO are available on the CC2650. These IO can be

configured as generic peripheral input / output pins or programmed as communication interfaces including SPI,

I2C and UART.

3.1.1 CC2650 Pin Definitions

Table 3-1 CC2650 Pin Description

Pin Name

Description

Header & Pin Number

BLE_I2C_SCL

I2C clock pin

P1 (24)

BLE_I2C_SDA

I2C data pin

P1 (26)

BLE_SPI_CSN (CC2650

configured as Master)

Serial Peripheral Interface (SPI) chip

select active low

P1 (28)

BLE_SPI_MISO (CC2650

configured as Master)

Serial Peripheral Interface (SPI)

Master In Slave Out

P1 (30)

BLE_SPI_MOSI (CC2650

configured as Master)

Serial Peripheral Interface (SPI)

Master Out Slave In

P1 (29)

BLE_SPI_SCLK (CC2650

Serial Peripheral Interface (SPI)

P1 (31)

configured as Master)

Clock

BLE_DIO15

Interrupt (Sourced from CC2650)

P1 (42)

BLE_DIO6–BLE_DIO9

Spare IO

P2 (11, 12, 14, 26)

BLE_DIO10–BLE_DIO14

Spare IO

P1 (12, 15, 23, 25, 27)

BLE_ANT

CC2650 Antenna switch (Not Used)

P2 (18)

3.1.2 CC2650 programming interface

The CC2650 uses an IEEE 1149.7 compliant compact JTAG (cJTAG) programming interface. cJTAG is a 2 pin

communication protocol that is a subset of the standard 4 pin JTAG interface. The cJTAG interface requires only

the TCK and TMS signals. The diagram below shows the pinout of the CC2650’s programming header.

Figure 3-1 CC2650 cJTAG programming header

Physically, the header is a 10 pin (2x5), 1.27mm (.050”) pitch, male header. The following programmer can be

used to program the on board CC2650: http://www.ti.com/tool/cc-debugger

For additional details regarding programming the CC2650 please refer to the Texas Instruments CC2650

webpage: http://www.ti.com/product/CC2650/description

3.2 CC3100 Hardware

The DEV-RF002 supports two communication interfaces which are dedicated to the CC3100 device. These

interfaces include one SPI interface and one UART interface. Both interfaces are provided as signals on

connectors P1 and P2.

3.2.1 CC3100 Pin Definitions

Indice

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