PX5 USB

Embedded USB Host/Device Stack

The USB stack of choice for professional developers

PX5 USB is an ULTRASMALL USB 2.0 host and device stack for demanding, memory-constrained devices:

  • Less than 10KB flash memory (Host stack)
  • Less than 5KB flash memory (Device stack)
  • Minimal RAM requirements

PX5 USB is a deterministic, high-performance USB stack that delivers USB 2.0's 480 Mbps transfer speed, making it ideal for the most demanding embedded systems. PX5 USB also delivers best-in-class safety and security.

  • PX5 tests achieve 100% statement and branch-decision overage over the entire PX5 USB code base.
  • PX5 USB offers an optional run-time buffer overflow detection.
  • PX5 USB offers optional use of Pointer/Data Verification (PDV) and central error handling provided by the PX5 RTOS.

PX5 USB is designed for products that need dependable USB functionality in real-world embedded systems. Whether the requirement is peripheral connectivity, removable storage, service access, USB networking, human-interface support, or audio , PX5 USB provides a focused and standards-based foundation for modern embedded development.

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  • Small and Fast
  • USB 2.0 Compliant
  • Host and Device Support
  • Extensive Class Support
  • Advanced Safety and Security
  • Deterministic
  • Easy to Use
  • Extensive USB Controller Support
  • ARM Cortex-M, Cortex-R, Cortex-A
  • Infineon TriCore
  • Renesas RX
  • RISC-V
  • AMD MicroBlaze
  • IAR, GCC, ARM Tools
  • Full source and no royalties
  • Professional Support

Components of PX5USB

Small

Designed for resource-constrained devices and deeply embedded environments. Minimal configurations start at 10KB Flash and 5KN RAM for Host, and 5KB Flash and 3KB RAM for Device.

High Efficiency

PX5 USB combines low overhead with high performance, enabling developers to fully utilize the USB 2.0 480Mbps transfer rate in demanding real-time designs.

Professional Support

Always ready to help, the embedded software experts on the PX5 support team promise quick action on every support request. Unlike many open source and even some commercial options, we are here to help!

Safe and Secure

PX5 USB follows the same PX5 emphasis on robust engineering, including complete C statement and branch decision coverage for every release, static analysis, optional run-time protection, and PDV-based error checking via PX5 RTOS.

Full Source Code

Complete source code, simple royalty-free licensing, and professional support from embedded software experts make PX5 USB practical for long-life commercial products.

Easy to Use

All source file names and function names are easy to understand and self-explanatory. APIs are intuitive, and the documentation is best-of-class.

Processor Support

All source file names and function names are easy to understand and self-explanatory. APIs are intuitive, and the documentation is best-of-class.

Tool Support

All source file names and function names are easy to understand and self-explanatory. APIs are intuitive, and the documentation is best-of-class.

Royalty Free

PX5 offers royalty-free licensing for the PX5 USB. Like the PX5 RTOS, the PX5 USB licensing is simple and easy to work with.

Broad Controller Support

Supports most popular USB 2.0 host and device controllers helping keep hardware options open across product lines.

VAST Processor Support

arm
ARM Cortex-M

Cortex-M0, Cortex-M0+, Cortex-M3, Cortex-M4, Cortex-M7, Cortex-M23, Cortex-M33, Cortex-M35P, Cortex-M52, Cortex-M55, Cortex-M85

arm
ARM Cortex-R

Cortex-R5, Cortex-R8, Cortex-R52, Cortex-R52+, Cortex-R82

arm
ARM Cortex-A

Cortex-A5, Cortex-A7, Cortex-A32, Cortex-A34, Cortex-A35, Cortex-A53, Cortex-A55, Cortex-A72, Cortex-A73, Cortex-A75, Cortex-A77, Cortex-A78

RISC-V

RISC-V

Renesas

RX

AMD

MicroBlaze

Infineon

TriCore

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