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ECE 424 Embedded Systems Design

ECE 424 Embedded Systems Design. Lecture 5 : Platform Architecture Ning Weng. ES Platform Architecture. What makes an embedded platform in the level of building blocks? Goal: a high level of familiarity with platform Components Physically connections – schematic level

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ECE 424 Embedded Systems Design

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  1. ECE 424 Embedded Systems Design Lecture 5: Platform Architecture NingWeng

  2. ES Platform Architecture What makes an embedded platform in the level of building blocks? • Goal: a high level of familiarity with platform • Components • Physically connections – schematic level • Logic view from software @ processor view • Key • Memory map and associated register maps of varying devices • Key components: • Processor • Interrupt controller • Memories • Times • Devices Interfaces ECE 424

  3. System Overview ECE 424

  4. Memory Map Representation A list of physical address of all the resources on the platfrom ECE 424

  5. Basic Interrupt Controller ECE 424

  6. Timer: logic configuration • Timer: • What, Why and How. • Examples: OS Tick and WDT ECE 424

  7. Memory Technologies • Volatile and no-volatile • Example: DRAM on platform, a flash ROM device and local on-die SRAM • Memory controller: coverts internal memory transactions to access memory devices ECE 424

  8. Throughput via Pipelining ECE 424

  9. DRAM Overview 2 Phases: Row address Strobe and Column address Strobe 3 latencies: ECE 424

  10. Flash Structure ECE 424

  11. Summary NAND/NOR Flash and SSD ECE 424

  12. NAND Device ECE 424

  13. PCIe Hierarchy ECE 424

  14. USB Hierarchy ECE 424

  15. Summary • Embedded Platform components • Many peripherals either integrated into SOC or part of platform boards ECE 424

  16. For Next Class • Read Chapter 5 for Processor Architecture ECE 424

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