CC2511 Dongle

7 USB development framework

A versatile, efficient and easy to use USB development framework is available for the CC2511. The intension with this framework is to make USB development as quick and easy as possible. The framework includes a firmware framework for the embedded software on the CC2511, and a Windows USB driver framework.

In addition there is general example code and libraries available showing how to use the CC2510 and CC2511 MCU, radio and other peripherals.

7.1CC2511 USB embedded firmware library

The CC2511 USB library is a software package aimed at making development of USB devices with the CC2511 quick and simple. It supports both vendor-specified device classes and standardized device classes such as HID and USB audio, with any number of configurations, interfaces and alternate settings. The following features are provided:

•Initialization of the USB peripheral unit, and response to reset-signaling on the bus.

•Automated response to almost all standard requests, based on data from the USB descriptor set (the SYNCH_FRAME and SET_DESCRIPTOR requests must be handled by the application).

•Automated setup of endpoint control registers, depending on the selected configuration and interface alternate settings.

•All endpoint types are supported: Setup, bulk, interrupt and isochronous.

•A simple and efficient interface for responding to class and vendor requests. Both automated and manual data transfer is supported.

•Endpoint access via a simple set of macros and functions.

•Support for suspend mode and remote wake-up.

•A function hook- and event-based interface allows for the framework to run from main, the USB interrupt, or a combination of both.

The library is completely generic, flexible, efficient, and easy to use. However, it does require brief knowledge of the USB specification, including the concepts of configurations, interfaces and endpoints, different endpoint types, standard, vendor and class requests, and USB descriptor sets.

Figure 10: USB library

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Texas Instruments user manual USB development framework, CC2511 USB embedded firmware library
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CC2511 specifications

Texas Instruments CC2511 is a highly versatile and efficient System-on-Chip (SoC) designed for wireless communication applications in the 2.4 GHz ISM band. This device is particularly suitable for low-power, low-rate wireless connections, making it ideal for applications such as home automation, industrial control, and medical device communications.

One of the key features of the CC2511 is its integrated low-power, high-performance radio transceiver, which enables robust wireless communication. The device supports a wide range of modulation schemes, including 2-FSK and GFSK, allowing for flexible communication options tailored to specific application requirements. With a maximum output power of +5 dBm, the CC2511 ensures reliable transmission over significant distances while maintaining energy efficiency.

The CC2511 also incorporates a powerful 8051 microcontroller. This 8-bit microcontroller operates at speeds up to 24 MHz and is equipped with 128 bytes of RAM and 4 KB of Flash memory. The integration of the microcontroller allows developers to run application code directly on the chip, simplifying the design and reducing the need for additional components.

Additionally, the CC2511 features multiple connectivity options, including a hardware accelerator for AES-128 encryption. This ensures secure data transmission, which is crucial for applications that require privacy and protection against unauthorized access. The built-in power management features allow for energy-efficient operation, with various sleep modes that help extend battery life for portable devices.

Moreover, the CC2511 supports the SimpleLink technology from Texas Instruments, which offers a seamless development environment and user-friendly tools. Developers can take advantage of software development kits (SDKs), sample applications, and extensive documentation to streamline the development process.

In terms of characteristics, the CC2511 operates across a wide range of temperatures, making it suitable for various environmental conditions. Its compact size and low power consumption make it an excellent choice for battery-operated devices.

In conclusion, Texas Instruments CC2511 stands out as a leading solution for low-power wireless applications with its integrated transceiver, microcontroller, and advanced features. This SoC empowers developers to create innovative and efficient communication solutions across various industries.
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