Using ADSP-BF538F EZ-KIT Lite

The frame sync and bit clocks are generated from the ADC and feed to the processor because the ADC is operating in master mode. The audio inter- face samples data at a 48 kHz sample rate. The serial data interface operates in 2-wire interface (TWI) mode and connects to SPORT0 of the processor.

The audio interface can be disconnected from the SPORT0 by turning positions 1 and 5 of the SW7 switch OFF. When in the OFF position, the SPORT0 signals can be used on the SPORT0 connector (P6) or on the expan- sion interface (see “SPORT0 and SPORT1 Connectors (P6 and P7)” on page 2-23and “Audio Enable Switch (SW7)” on page 2-12for more information).

Example programs are included in the EZ-KIT Lite installation directory to demonstrate audio circuit operation.

LEDs and Push Buttons

The EZ-KIT Lite provides four push buttons and five LEDs for gen- eral-purpose IO.

The five LEDs, labeled LED2 through LED6, are accessed via the PC5–9pro- cessor pins. For information on how to program the pins, refer to the ADSP-BF538/ADSP-BF538F Blackfin Processor Hardware Reference.

The four general-purpose push button are labeled SW10 through SW13. A status of each individual button can be read through the processor’s pro- grammable flag inputs, PF0–3. The signal reads 1 when a corresponding switch is being pressed-on. When the switch is released, the signal reads 0. A connection between the push button and programmable flag input is established through the DIP switch, SW5. See “LEDs and Push Buttons” on page 2-17for details.

An example program is included in the EZ-KIT Lite installation directory to demonstrate functionality of the LEDs and push buttons.

ADSP-BF538F EZ-KIT Lite Evaluation System Manual

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Analog Devices ADSP-BF538F system manual LEDs and Push Buttons
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ADSP-BF538F specifications

The Analog Devices ADSP-BF538F is a high-performance Blackfin processor that stands out in the realm of digital signal processing. This processor is designed specifically for applications that require intensive signal processing, such as audio and video encoding/decoding, industrial automation, and medical imaging. Its combination of processing power, low power consumption, and rich feature set makes it an ideal choice for embedded systems.

One of the main features of the ADSP-BF538F is its dual-core architecture, which allows for simultaneous execution of multiple threads. This architecture leverages the strengths of both RISC and SIMD (Single Instruction, Multiple Data) processing, enabling it to handle complex algorithms effectively. Additionally, the processor operates at clock speeds of up to 600 MHz, delivering impressive performance while maintaining energy efficiency.

Technologically, the ADSP-BF538F incorporates a diverse range of peripherals that enhance its versatility. It features integrated multimedia capabilities, including a video port for interfacing with cameras and displays, and a direct memory access (DMA) controller that facilitates rapid data transfer between memory and peripherals. This efficient data handling is critical in applications where real-time performance is essential.

The processor is equipped with rich memory resources, including up to 1 MB of on-chip SRAM and an external memory interface that supports various memory types, such as SDRAM and Flash. This ample memory capacity is crucial for application scenarios that require high-speed data processing and storage.

Power management is another key characteristic of the ADSP-BF538F. It features multiple power-saving modes that allow developers to optimize for energy efficiency without sacrificing performance. This makes it suitable for battery-operated devices where power consumption is a crucial consideration.

Furthermore, the ADSP-BF538F is designed with a development-friendly ecosystem, supporting various development tools and software. The processor is compatible with the VisualDSP++ development environment, which provides a comprehensive suite of application development tools, making it accessible for engineers to implement their projects efficiently.

In summary, the Analog Devices ADSP-BF538F is a cutting-edge signal processing solution that combines high-performance capabilities with energy efficiency. Its dual-core architecture, extensive peripherals, rich memory resources, and robust development support make it a powerful choice for a wide range of embedded applications. Whether in industrial, automotive, or consumer electronics, the ADSP-BF538F is poised to deliver outstanding performance and reliability.
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