Texas Instruments (TI) recently launched a single-chip SoC CC2538 based on ARM Cortex M3 and integrated with Zigbee, which is suitable for applications such as smart energy infrastructure based on ZigBee® wireless connectivity, home building automation, and intelligent lighting gateway development. CC2538 highly integrates ARM® Cortex ™ -M3 MCU, memory and hardware accelerator on a single silicon chip, supports ZigBeePRO, ZigBee Smart Energy and ZigBee Home AutomaTIon and lighting standards, and can interoperate with existing and future ZigBee products. In addition, the SoC also supports IP standardization development using IEEE 802.15.4 and 6LoWPAN IPv6 networks, enabling the highest flexibility.
The application of the Internet of Things has been hot in recent years, but the realization of practical commercial applications has been slow to implement. Wu Jianhong, MCU business development manager of TI's Semiconductor Division, introduced that Zigbee technology, as a wireless connection technology that is very suitable for IoT applications, has also developed slowly because it has not found a landing application. In North America, Zigbee technology is a breakthrough in the development of smart meters. In China, due to China's special market characteristics, it cannot effectively follow suit. The good news is that recently, Chinese customers have found a breakthrough in the application of Zigbee technology in some smart home applications, that is, through Zigbee to build a family of intelligent lighting systems for controlling indoor LED lighting.
The traditional infrared control is not precise enough, but the RF control is because the two ends are docked, so the control is accurate, which is very suitable for the requirements of LED lamp control. In the LED lighting control system, only one Zigbee chip needs to be installed in each LED lamp, so that each LED lamp becomes a Zigbee router at the same time, thus ensuring that Zigbee has good and stable transmission in multiple rooms indoor Effect, so as to ensure that the control function can achieve satisfactory results. TI ’s new Zigbee SoC has the following application modes: it can be installed in a Wi-Fi router; it can be installed in a set-top box; it can be installed on portable devices such as tablets or smart phones; it can also be used by a separate Zigbee device Network cable connection. You only need to download an application with your mobile phone or tablet, and you can remotely control the switch, color, and brightness of your home lights through your mobile phone or tablet. Wu Jianhong also told reporters that Philips has launched a product with a price tag of $ 199, and you can use the iPhone to download applications to achieve the above-mentioned LED light control functions. Since then, Zigbee has truly realized the practical IoT function.
Other features and advantages of CC2538 include:
• Through the integrated ARM Cortex-M3 core to achieve efficient processing of centralized networks and reduce material costs;
• Supports smart energy infrastructure applications with expandable flash memory options from 128K to 512K;
• Maximized flexibility through integrated pin-to-pin compatible 8K to 32K RAM options, supporting mesh networks with up to hundreds of end nodes;
• Pass AES-128 / 256, SHA2 set
Formed hardware encryption engine, optional ECC-128 / 256 and RSA hardware acceleration engine can reduce the energy consumption of secure key exchange and start the system safely and quickly;
• Optimized for battery-powered applications, current consumption is only 1.3μA in sleep mode;
• Can work under high temperature up to 125 degrees Celsius;
• Supports fast digital management without the need for external interfaces or interfaces between system-level chip components.
The CC2538 Development Kit (CC2538DK) provides a complete development platform for CC2538, helping users understand all functions without additional layout. The kit comes with a high-performance CC2538 evaluation board (CC2538EMK) and motherboard, an integrated ARM Cortex-M3 debug probe for software development, and peripherals such as LCDs, buttons, light sensors, and accelerators to create demonstration software. In addition, these boards are compatible with TI SmartRF â„¢ Studio and can run RF performance tests.
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