The platform is built around a power-optimised CEVA-TeakLite-4 DSP and subsystem implemented in silicon through a collaboration with SMIC who fabricated it at their IoT-centric 55nmLP process.
Running at 500MHz, the DSP provides designers with a powerful means to add ‘smart and connected’ capabilities to these devices, including always-on sensing, local processing and intelligence and connectivity.
The platform also provides real-time power measurement that allows developers to optimise and power-tune their DSP software.
The CEVA Smart and Connected Development Platform incorporates the following elements:
- DSP development chip: 500MHz CEVA-TeakLite-4 and subsystem of integrated peripherals (TDM, DMA, I2C, I2S, ICU, Timers, GPIO, etc.)
- Host CPU: Linux running on-board ARM Cortex-A9 for complete CPU + DSP system prototyping
- Connectivity: multiple wireless technologies available from CEVA and its partners, including Bluetooth Smart and Smart Ready, Wi-Fi, ZigBee and GNSS
- Peripherals and interfaces: including on-board digital (MEMS) microphones, I2C I/F for sensors, audio CODEC with digital and analog audio in/outs, USB, UART, PCIe, and Ethernet ports, user configurable FPGA, GPIOs, DDR memory, SD card, and LCD display
- Arduino connectors and drivers: allows Arduino Shields to be connected to the board, leveraging a massive ecosystem of Arduino-related products
- CEVA’s Android Multimedia Framework (AMF) for offloading Android tasks from CPU to DSP to enhance always-on functionality and long audio playback time
- RTOS and DSP libraries: multi-tasking RTOS and a DSP library to jumpstart system design
In addition, CEVA and its broad ecosystem of partners offer audio, voice and sensing software and applications that are fully optimised for the CEVA-TeakLite-4 DSP, including Sensory’s always-on voice activation and speech recognition, NXP Software’s multi-microphone noise reduction, Cypher’s neural-network based voice isolation technology, Cywee Motion sensor-fusion algorithms and more than 100 other software functions.
CEVA will demonstrate the ‘smart and connected’ development platform at its upcoming Technology Symposiums, October 26-30 in China and Taiwan.