The Teledyne LeCroy Frontline HSU-PS High Speed UART (HSU) Protocol Analyzer captures and analyzes serial data communications in embedded systems and Bluetooth devices. It provides non-intrusive access to UART protocol data at the Host Controller Interface (HCI) layer, supporting H4, H5, and BCSP protocols up to 8 Mbps. Direct TTL connection to the HCI UART transport layer eliminates signal corruption, while USB power and portable form factor enable rapid field deployment.
Technical Specifications
• Data Rate: Up to 8 Mbps
• Bluetooth HCI Protocols: H4, H5, BCSP
• Connection: Direct TTL to HCI UART transport layer
• Analysis Method: Non-intrusive serial data capture
• Power: USB-powered
• Synchronization: ProbeSync technology for synchronized multi-device capture and timestamp alignment across HCI and over-the-air Bluetooth data streams
• Hardware: Portable high-speed UART interface with 6′ shielded USB cable and 22-gauge test wires with miniature test clips
– Key Features
• Tight timestamp synchronization across multiple data streams via ProbeSync eliminates correlation uncertainty when debugging Bluetooth host-controller interactions
• Native HCI packet capture preserves command, response, and event tokens in uncontaminated format
• Non-intrusive design prevents signal loading or protocol degradation
• Direct TTL connection simplifies integration with development boards and reference designs
• Mature Frontline software provides packet-level viewing, error search, and comparative analysis
– Typical Applications
• Bluetooth host-controller debugging during firmware development
• HCI protocol compliance and interoperability validation
• Serial communication troubleshooting in embedded systems
• Multi-layer analysis when paired with over-the-air capture devices
– Compatibility & Integration
The HSU-PS works with the BPA 600 Dual Mode Bluetooth Protocol Analyzer via ProbeSync technology to simultaneously capture HCI traffic and over-the-air frames. Interoperability analysis across multiple Frontline devices enables visibility across complete Bluetooth stacks and transport layers.















