Radio; Applications - Texas Instruments CC253x User Manual

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The operational amplifier
buffering and gain for the ADC. Both the inputs as well as the output are available on pins, so the
feedback network is fully customizable. A chopper-stabilized mode is available for applications that need
good accuracy with high gain.
The ultralow-power analog comparator
applications to wake up from PM2 or PM3 based on an analog signal. Both inputs are brought out to pins;
the reference voltage must be provided externally. The comparator output is mapped into the digital I/O
port and can be treated by the MCU as a regular digital input.

1.1.4 Radio

The CC2540 and CC2541 provide a Bluetooth low energy-compliant radio transceiver. The RF core which
controls the analog and digital radio modules is only indirectly accessible through API commands to the
BLE stack. More details about the CC2540 or CC2541 BLE radio can be found in
CC2541 can also be run in proprietary modes; more details can be found in
The CC253x device family provides an IEEE 802.15.4-compliant radio transceiver. The RF core
controls the analog radio modules. In addition, it provides an interface between the MCU and the radio
which makes it possible to issue commands, read status, and automate and sequence radio events. The
radio also includes a packet-filtering and address-recognition module. More details about the CC253x
radio can be found in
1.2

Applications

As shown in the overview
modules that are available to build different types of applications based on the CC253x,CC2540, and
CC2541 device family. When looking at the complete application development process, additional
information is useful. However, as this information and help is not device-specific (that is, not unique for
the CC253x, CC2540, and 41 device family), see the additional information sources in the following
paragraphs.
The first step is to set up the development environment (hardware, tools, and so forth) by purchasing a
development kit (see the device-specific product Web site to find links to the relevant development kits).
The development kits come with an out-of-the-box demonstration and information on how to set up the
development environment; install required drivers (done easily by installing the SmartRF software,
Section 27.1), set up the compiler tool chain, and so forth. As soon as one has installed the development
environment, one is ready to start the application development.
The easiest way to write the application software is to base the application on one of the available
standard protocols (RemoTI network protocol,
software for ZigBee-compliant solutions,
compliant solutions
come with several sample applications.
For the hardware layout design of the user-specific hardware, the designer can find reference designs on
the different product pages
performance. The developed hardware can then be tested easily using the SmartRF Studio software
(Section 27.1).
In case the final system should not have the expected performance, it is recommended to try out the
developed software on the development kit hardware and see how it works there. To check the user-
specific hardware, it is a good first step to use SmartRF Studio software to compare the development kit
performance versus the user-specific hardware using the same settings.
The user can also find additional information and help by joining the Low-Power RF Online Community
(Section B.2) and by subscribing to the Low-Power RF eNewsletter
To contact a third-party to help with development or to use modules, check out the Texas Instruments
Low-Power RF Developer Network
SWRU191F – April 2009 – Revised April 2014
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(Chapter 18) (CC2530, CC2531, and CC2540) is intended to provide front-end
(Chapter
Chapter 23.
(Section 1.1), this user's guide focuses on the functionality of the different
Section
Section 27.6; or the proprietary SimpliciTI network protocol,
(Section B.1). By copying these designs, the designer achieves optimal
(Section
Copyright © 2009–2014, Texas Instruments Incorporated
19) (CC2530, CC2531, CC2540, and CC2541) enables
Section 27.2; TIMAC software,
27.5); BLE stack software for Bluetooth low energy-
(Section
B.3).
Overview
Chapter 24. The
Chapter 25.
Section 27.4; Z-Stack
Section 27.3. They all
B.4).
Introduction
23