ge01mbkGE01MBK (V1.2) reference design scheme 1. Overall scheme goal: As a module configurable development system for enterprises, teaching and scientific research, and development and learning; Features: High performance, comprehensive storage module, users can choose to configure; Modular design, core board and motherboard double-layer architecture, the whole machine performance is more stable; Users can develop their own motherboard according to their own needs and flexibly configure peripheral interfaces; As a core module for student experiments, it is small in size and easy to carry; 1. Core board: Main functions Kernel-box module Main processor RAM memory NOR memory Debug interface Test point PCB Garfield IV 75MHz 4MBx2 x16bit Design requires compatibility with 4MBx1x16bit1MBx1x16bit NOR Design requires compatibility with 1MBx2x16bit GPIO expansion system Operation indicator, 2.5V power indicator 10MHZ CLK, 32.768KHZ CLK, SDCLK, 2.5V, etc. Double-sided silk screen 6 Layer board 50mmx70mm1.1 Module definition: Main processor: Garfield IV Core power supply: AMS1117_2.5 chip 5V->2.5V conversion Memory part: SDRAMx4Mbytex2 NORx2Mbytex2 Extension part: Introduce the 3.3V and 5V power supplies required by the core board through the extension socket; Introduce the RESET and WAKEUP function pins used by the core board through the extension socket; Extend the 22-bit address lines and 32-bit data lines and unused control signals to the motherboard through the extension socket; 1Mx1/2 x16bit NorFlash4Mx1/2 x16bit SDRAMMemoryDIMM 144 CONKernel-boardPOWER5V3.3VFigure 1-1 Core board system block diagram IIRUN G_LEDSEP320332.768kHZFigure 1-2 1.2 Core board layout block diagram Memory The memory part of the core board includes: SDRAMx8Mbyte……
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