Wake up x86 devices from S5 sleep state in ms

This White Paper is presented by Kontron

By using QNX fastboot technology on Intel Atom processor based ultra-small nanoETXexpress computer-on-modules, systems designers can achieve instant-on functionality while taking advantage of the x86 compatibility and high performance per watt of Intel Atom processors. Developers can achieve dramatic boot-time and performance gains by replacing the BIOS with customized early initialization of peripherals. Furthermore, QNX fastboot technology helps developers to profit from the low power efficiency of nanoETXexpress technology by extensively using the zero power S5 sleep state (off) instead of power consuming sleep modes (S1 – S4) at comparable wake up times.

Traditionally, x86 systems have relied on boot firmware called the BIOS (Basic Input Output System), which provides a wide range of device compatibility and detects the system configuration at boot time. However, neither of these capabilities rank high in embedded application requirements. Embedded solutions are typically niche, purpose-specific, or mass-produced devices with the exact same configuration for each device. Some of these applications require boot-times in milliseconds. So the question is: How can developers achieve a fast, BIOS-less boot on open x86 processors, rather than on dedicated controllers? Such an approach would be ideal for: » Real-time control and communication in automotive and security application...

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