Texas Instruments Chipcon CC2430DB Manuale utente

SWRU125 Page 1

CC2430DB

Demonstration Board

User Manual

SWRU125 Page 2

Table of content

1Introduction......................................................................................................................3

2Definitions........................................................................................................................3

3Kit content .......................................................................................................................3

3.1 Hardware.....................................................................................................................3

4Getting started.................................................................................................................3

5Hardware description CC2430DB....................................................................................4

5.1 Powering CC2430DB ..................................................................................................4

5.2 USB Interface..............................................................................................................5

5.3 User interface..............................................................................................................5

5.4 EEPROM.....................................................................................................................5

5.5 Accelerometer .............................................................................................................5

5.6 Potentiometer..............................................................................................................5

5.7 Light sensor.................................................................................................................6

5.8 I/O connectors.............................................................................................................6

5.9 Jumper settings...........................................................................................................7

5.9.1 P3 Jumpers ........................................................................................................7

5.9.2 P5 Jumpers ........................................................................................................8

5.10 Signal flow ..............................................................................................................9

6Using CC2430DB for prototyping ..................................................................................10

6.1 Debugging using the USB interface ..........................................................................10

6.2 Debugging CC2430DB with the CC2430 debug connector .......................................10

6.3 Low power operation .................................................................................................11

6.4 Using the UART interface on the CC2430DB............................................................13

7Programming CC2430 with a HEX file...........................................................................14

8Schematics....................................................................................................................14

9Bill of Materials (BOM)...................................................................................................15

10 Document History ..........................................................................................................17

SWRU125 Page 3

1 Introduction

This manual contains reference information for the CC2430 DB hardware. The following tools,

which can be used with the kit, have their own user manual that can be downloaded from the

TI website:

- SmartRF®Studio

- Chipcon general packet sniffer

- IAR EW8051 C-compiler and C-Spy debugger (www.IAR.se)

The CC2430DB demonstration board includes a number of functions and applications that

allows quick testing of the RF interface and peripherals of the CC2430. It can for example be

used for:

•Evaluation of SmartRF®04 products.

•Measurement of current consumption. The kit is designed for low power operation,

and with an ampere meter the current consumption can be measured for all operating

modes.

•Prototype development. The CC2430DB includes a USB interface that can be used

as emulator interface for the CC2430. Additionally, all I/O ports are available on pin

connector on the board to allow easy access for external applications.

2 Definitions

CC2430DB CC2430 Demonstration Board; described in this user manual

USB MCU The Silicon Labs C8051F320 MCU used to provide a USB interface

on the CC2430DB

Factory firmware The firmware that is supplied programmed into the USB MCU from

the factory. This firmware supports SmartRF®Studio operation.

SoC System on a Chip. A collective term used to refer to Chipcon ICs with

on-chip MCU and RF transceiver

ICE In Circuit Emulator

3 Kit content

3.1 Hardware

The CC2430DB kit contains the following:

- 1 CC2430DB demonstration board

- 1 USB cable

- Quick start guide

- This document

4 Getting started

Make sure to install SmartRF®Studio before connecting the CC2430DB to a PC, as it installs

the required hardware drivers on the PC. SmartRF®Studio can be downloaded from the TI

web pages:

http://focus.ti.com/docs/toolsw/folders/print/smartrftm-studio.html

SWRU125 Page 4

5 Hardware description CC2430DB

Figure 1: CC2430DB overview

5.1 Powering CC2430DB

The CC2430DB can be powered in three different ways:

•2.5 mm DC jack connector. This connector is placed under the board. The centre pin

is used for the positive voltage. A 4-10V DC power supply should be used. The

onboard voltage regulator supplies 3.3V to the board.

•USB power. If the CC2430DB is connected to a USB socket on a PC, it will draw

power from the USB bus. The onboard voltage regulator supplies 3.3V to the board.

•Battery power. The CC2430DB includes a battery clip for two AA type batteries

If several power sources are connected, the CC2430DB will be powered from the supply that

supplies the highest voltage. The USB MCU is only powered when USB or DC jack power is

used.

USB

connector

Joystick

LED

I/O connector A

I/O connector B

Power switch S3

DC jack

(Reverse)

USB MCU

debug

connector

Pot.

CC2430 Reset

Button S1

USB MCU

ht sensor

CC2430

debug

CC2430

PCB

Antenna

Low current

jumpers

Battery clip

(Reverse)

Accelerometer

Low current

jumpers

EEPROM

SWRU125 Page 5

Figure 2: Power switch setting

The Power Switch S3 must be set according to what power source is used. If DC jack or USB

power is applied, the switch should be set to the USB position. If the board is powered from

batteries, the switch should be set to the BATT position as shown in Figure 2. When either

DC power or batteries are used to power the board, the switch can be used as an on/off

switch.

When powering the CC2430DB from batteries, the CC2430 will work down to 1.8V. Please

note that when using USB, the voltage range is limited to 3.0V – 3.6V. The CC2430DB has

been designed for a temperature range of –40°C to +85°C.

5.2 USB Interface

The USB interface is used to interface to a PC to run the In-Circuit Emulator in the IAR

Embedded Workbench (IAR EW) and using SmartRF®Studio. The IAR EW can also be used

to reprogram the CC2430DB (see the IAR EW manual for more details).

Furthermore, it is also possible to reprogram the CC2430DB via the USB interface with the

Chipcon programming software, or to use the board for the Chipcon packet sniffer.

When connected to the USB port the CC2430DB is powered from the USB and no other

voltage supplies are required.

Please refer to the Chipcon Flash Programmer User Manual installed with SmartRF®Studio

for a detailed description of how to reprogram the CC2430DB.

5.3 User interface

The CC2430DB includes a joystick and a push button as user input devices, and two LEDs as

user output devices.

5.4 EEPROM

A 32Kbit EEPROM is included for non volatile storage of data that is frequently updated. The

EEPROM has 1 Million guaranteed write cycles.

5.5 Accelerometer

The accelerometer can be used to measure movements in 2 axes. It can also be used for tilt

measurements by measuring the earth’s gravitation. The accelerometer has a 20 ms start-up

time after power on. See the Analog Devices ADXL321 datasheet for details about the

accelerometer.

5.6 Potentiometer

The potentiometer controls the voltage on the analog input pin P0_7 of the CC2430. The

voltage, and thus the potentiometer position, can be measured with the CC2430 A/D

converter.

SWRU125 Page 6

5.7 Light sensor

A light dependent resistor (LDR) measures light level and gives an analog signal that is

measured by the CC2430 A/D converter. The light sensor resistance ranges from 5KΩ(light)

to 20MΩ(dark).

5.8 I/O connectors

The I/O connectors bring out all the signals from CC2430. These connectors allow easy

access to all CC2430 I/O pins. External circuitry can be connected to these connectors for

prototyping.

Pin Function

1 VDD

2 VDD_SW_CONTROLLED1

3 P0_0/LDR

4 RESET_N

5 P0_1/BUTTON PUSH

6 P1_7/SO/MISO/UART_RD

7 P0_2/EE_SDA

8 P1_6/SI/MOSI/UART_TD

9 P0_3/EE_SCL

10 P1_5/SCLK/RTS

11 P2_1/DD

12 P1_4/CSN/SS/CTS

13 P2_2/DC

14 P2_0/JOY PUSH

15 P0_6/JOY

16 P1_2/VDD_SW_CTRL

17 P0_7/POT

18 P1_1/LED2

19 P1_0/LED1

20 GND

Table 1: I/O connector A (P6) pin-out

Pin Function

1 P1_3/GPIO

2 DC_JACK_PWR

3 P0_4/ACC_X

4 VDD

5 P0_5/ACC_Y

6 GND

Table 2: I/O connector B (P7) pin-out

1VDD_SW_CONTROLLED is controlled by the signal named VDD_SW_CTRL

SWRU125 Page 7

5.9 Jumper settings

Figure 3: CC2430DB Jumper settings

Table 3: Jumper settings summary

5.9.1 P3 Jumpers

The jumper between pin 1-2 on P3 can be replaced with an ampere meter to measure current

consumption of CC2430. The jumper must be mounted for normal operation.

Header Pin Description Default setting

P3 1-2 Replace with ampere meter to measure current

consumption of CC2430

Mounted

P3 3-4 SW controlled power. Can be removed when

performing current measurement to reduce

leakage current

Mounted

P3 5-6 Accelerometer self test. Mount to perform

accelerometer self test function. See also section

5.9.1.

Not mounted

P4 7-9 Manual reset of USB MCU Not mounted

P4 9-10 Mount during power on to force USB MCU into

boot loader

Not mounted

P5 1-2 Connects DD (Debug Data) between USB MCU

and CC2430. Should be removed when

connecting ICE to P8 “2430deb“ connector

Mounted

P5 3-4 Connects DC (Debug Clock) between USB MCU

and CC2430. Should be removed when

connecting ICE to P8 “2430deb” connector

Mounted

P5 5-6 Connects RESET_N signal between USB MCU

and CC2430. Can be removed when performing

current measurement to reduce leakage current

Mounted

P3, pin 1-2: Replace with ampere

meter to measure current

consumption of CC2430

P3, pin 3-4: SW controlled power

P3, pin 5-6: Accelerometer self test P5, pin 1-2: Connects DD (Debug Data)

P5, pin 3-4: Connects DC (Debug Clock)

P5, pin 5-6: Connects RESET_N

SWRU125 Page 8

The jumper between pin 3-4 can be removed when performing current measurement to

reduce leakage current of the peripheral devices connected to the CC2430. The jumper must

be mounted for normal operation

The jumper between pin 5-6 can be mounted to perform accelerometer self test function. By

mounting this jumper, a voltage is applied to the accelerometer outputs. See the Analog

Devices ADXL321 datasheet for details about the accelerometer self test. The jumper must

be removed for normal operation.

Figure 4: Default P3 jumper settings

5.9.2 P5 Jumpers

All jumpers on header P5 must be mounted for normal operation.

The jumper between pin 1-2 on P5 connects DD (Debug Data) between USB MCU and

CC2430.

The jumper between pin 3-4 on P5 connects DC (Debug Clock) between USB MCU and

CC2430DB.

When the CC2430DB is used with emulator connected to the USB port, both the DD and DC

jumpers must be mounted. They should only be removed if an external emulator is used.

Chapter 6.2 gives instructions on how to connect the external emulator to the CC2430DB.

The jumper between pin 5-6 on P5 connects RESET_N signal between USB MCU and

CC2430. The jumper can be removed when performing current measurement to reduce

leakage current for the circuits connected to the RESET pin. The jumper must be mounted for

normal operation.

Figure 5: P5 default jumper settings

SWRU125 Page 9

5.10Signal flow

The signal lines from the I/O connectors and the CC2430 run via 0Ωresistors to the various

peripherals on the CC2430DB. The peripherals can be disconnected from the CC2430 signal

pins by removing the 0Ωresistors. Please refer to Table 6 for a list of what resistors

correspond to which signals.

0 ohm

Figure 6: CC2430DB Signal flow

SWRU125 Page 10

6 Using CC2430DB for prototyping

The CC2430DB can be used for prototyping by programming the CC2430 with custom

applications. All I/O ports on the CC2430 are available on pin row header at the edge of the

board, and the USB interface can be used as In Circuit Emulator (ICE) interface allowing real

time in circuit emulation of the CC2430.

Table 6 on page 13 shows what pins on the MCU are used for various functions.

P6 and P7 pin-row connectors can be used to connect the CC2430DB to other PCB or

prototyping boards. See page 6 for the pin-out of these connectors.

0Ωresistors are included to isolate the CC2430 from the external components on the

CC2430DB. By removing these resistors, signals can be accessed on the pin headers. Refer

to section 5.10 and Table 6 for information about which pin corresponds to which resistor.

6.1 Debugging using the USB interface

The most common way to use the CC2430DB for development is to use the USB interface to

control the CC2430 on-chip In-Circuit Emulator. The USB interface supplies power to the

board, so there is no need for additional DC power or batteries. The USB interface can also

be used to program the CC2430 in circuit using the Chipcon programming software.

6.2 Debugging CC2430DB with the CC2430 debug connector

The CC2430DB can be used with the Chipcon packet sniffer or other applications that require

USB interface for communication with PC and debugging with an emulator simultaneously. In

these cases the SoC debug connector can be used for connecting the ICE. The

SmartRF04EB can be used as emulator interface with a cable from P14 “SoC debug/flash” on

SmartRF04EB to P8 “2430deb” on CC2430DB. See Figure 7 below. The jumpers between

pin 1-2, 3-4 and 4-5 on header P5 must be removed.

CC2430DB must be powered from battery, USB or DC jack when debugged from

SmartRF04EB.

Figure 7: CC2430 Debug Connector

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