Futures

Raspberry Pi Introduces New PCIe FFC Connector and HAT+ Standard Specifications, (from page 20221217.)

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Summary

Raspberry Pi has introduced two new specifications: one for the PCIe FFC connector and another for the HAT+ standard. The PCIe FFC connector specification includes details about its 16-pin 0.5mm pitch design, which features a single lane PCIe Gen 2 interface, and recommendations for compatible FFC cables. The HAT+ standard replaces the original HAT specification, allowing for greater flexibility in mechanical dimensions and ensuring compatibility with standby power states. Notably, HAT+ boards can stack and are electrically compatible with older Raspberry Pi models, although they require updated software. The specifications aim to enhance power management and simplify EEPROM content, with a final version expected next year. Discussions also highlight potential design challenges regarding the cooling solutions for Raspberry Pi 5.

Signals

name description change 10-year driving-force relevancy
HAT+ Standard Simplification The new HAT+ standard simplifies design rules for Raspberry Pi expansion boards. Shift from strict HAT specifications to a more flexible HAT+ standard for manufacturers. In ten years, we may see a diverse range of innovative Raspberry Pi add-ons due to simpler design rules. The need for manufacturers to create more versatile and varied add-ons for Raspberry Pi devices. 4
Power Management Modes Introduction of new power management modes for Raspberry Pi boards. Transition from WARM-STANDBY to STANDBY mode for lower power consumption in off state. Power management innovations could lead to more energy-efficient computing solutions in future devices. Growing emphasis on energy efficiency and sustainable technology in the electronics industry. 4
Emergence of M.2 HATs Development of M.2 HATs for Raspberry Pi 5 indicates a trend towards modular hardware solutions. Evolution from traditional HATs to modular M.2 HATs for enhanced functionality. In a decade, modular hardware could dominate the Raspberry Pi ecosystem, allowing easy upgrades. The increasing demand for customizable and upgradable computing solutions. 5
Community Engagement and Prototyping Active community experimentation with Raspberry Pi 5 hardware before official specifications were released. From a closed development process to more community-driven innovation and prototyping. In ten years, community-driven hardware development could become a standard practice in tech. The rise of maker culture and community collaboration in technology development. 4
Potential for New Form Factors Less prescriptive HAT dimensions allow for more diverse form factors in expansion boards. Shift from rigid design requirements to more adaptable board designs for Raspberry Pi. In a decade, we could see a wide array of unique and innovative form factors for Raspberry Pi add-ons. The desire for customization and innovation in hardware design. 3

Concerns

name description relevancy
Power Consumption in Standby Mode Potential confusion about power consumption levels in standby modes may lead to inefficient energy usage across devices. 4
Compatibility Issues of HAT+ Boards The need for updated software and firmware for compatibility with older models may create user confusion and potential malfunctions. 3
Physical Design Flexibility vs. Standardization Less prescriptive dimension requirements might lead to inconsistent designs that affect compatibility and user experience. 3
Incomplete Utility Updates for HAT+ Spec The pending updates for EEPROM utilities may hinder the functionality and adaptation of new HAT+ boards. 3
Cooling Accessibility Conflicting guidelines regarding the Raspberry Pi 5 active cooler might result in overheating issues if not properly addressed in HAT design. 4

Behaviors

name description relevancy
Adoption of New Standards Users and developers are quickly adopting the new Raspberry Pi HAT+ standard for expansion boards, indicating a shift towards more flexibility and simplicity in design. 4
Development of Custom Hardware Creators are experimenting with new hardware configurations, such as M.2 HATs for Raspberry Pi 5, before official specifications are released, showcasing innovation in the community. 4
Focus on Power Management There is a growing emphasis on power consumption and management, with users interested in utilizing the new STANDBY mode to minimize power usage when devices are off. 5
Flexibility in Design Dimensions The movement towards less prescriptive mechanical dimensions in HAT+ boards allows for more diverse and creative hardware designs within the Raspberry Pi ecosystem. 3
Community-Driven Hardware Solutions The community is actively working on adapting existing hardware, like the Radxa Penta SATA HAT, for compatibility with new Raspberry Pi models, indicating a collaborative innovation effort. 4

Technologies

description relevancy src
A new 16-pin FFC connector for Raspberry Pi 5 with a single lane PCIe interface, enabling better connectivity and expansion options. 4 14e3697e5abe56677abbd69799e9e64b
An updated expansion board standard allowing for simpler designs, backward compatibility, and new power management features for Raspberry Pi. 4 14e3697e5abe56677abbd69799e9e64b
New power management modes for Raspberry Pi that reduce power consumption in off states, enhancing energy efficiency. 5 14e3697e5abe56677abbd69799e9e64b
An add-on board utilizing the new M.2 interface for expanding storage capabilities of Raspberry Pi 5. 4 14e3697e5abe56677abbd69799e9e64b

Issues

name description relevancy
Power Management in Standby Modes The introduction of the STANDBY power state could influence power consumption practices and design considerations for future Raspberry Pi applications. 4
HAT+ Standard Adoption The new HAT+ specification may lead to a shift in expansion board design and compatibility, impacting future Raspberry Pi projects. 4
Simplification of HAT EEPROM The new simpler EEPROM parameters could streamline development but may require adaptation from existing users. 3
Form Factor Flexibility Less prescriptive dimensions for HAT+ boards may encourage diverse form factors in hardware design, impacting future product offerings. 3
Compatibility Challenges with Older Models While HAT+ is backward-compatible, software and firmware updates may pose challenges for users with older Raspberry Pi models. 3
Cooling Solutions Design Conflicts regarding access to the Raspberry Pi 5 Active cooler may drive innovation in cooling solutions for future HAT designs. 4