77 lines
3.2 KiB
Markdown
77 lines
3.2 KiB
Markdown
# Hardware
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## Overview
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All hardware schematics and board files are designed using [KiCad](http://kicad-pcb.org) open-source CAD software.
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> KiCad is free software. KiCad is made available under the [GNU General Public License (GPL) version 3](https://www.gnu.org/licenses/gpl-3.0.en.html) or greater.
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All KiCad design files are available within the [HARDWARE](HARDWARE) directory within this repository.
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You may download KiCad and open for reviewing or editing each of the PCB files.
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The schematics are also available as PDF files for easier viewing and/or printing.
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**NOTE**: Please use the latest KiCad nightly development build, as the latest stable build may not have all required features.
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## Introduction to the hardware of TERES-I
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TERES-I internal electronics consists of the folowing boards:
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### Main board ([PCB1-A64-MAIN](A64-TERES/TERES-PCB1-A64-MAIN))
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The main board (**PCB1-A64-MAIN**) is comprised of:
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* A64 processor
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* RAM and flash NAND memories
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* Power management unit
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* LCD converter
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* Connectors to different interfaces
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* and others
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Alternative main board processors and memory configuration options will be available in the future.
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These should be compatible with all other existing boards.
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Subsequent revisions are expected to have increased processing speed and improved memory performance.
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### Keyboard controller ([TERES-PCB5-KEYBOARD](A64-TERES/TERES-PCB5-KEYBOARD))
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The **KEYBOARD controller** board (**TERES-PCB5-KEYBOARD**) is responsible for handling the keyboard and touch pad interfaces.
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This keyboard controller board allows you to completely reprogram the keyboard mapping and response according to your own taste.
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This board contains an AVR processor.
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Sources, binaries and update procedures for AVR firmware are available at GitHub.
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Keyboard/touch controller firmware may be updated live on the board itself.
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It can also be programmed using an Arduino microcontroller.
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Touch screen parameters can also be changed.
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### I/O board ([TERES-PCB2-IO](A64-TERES/TERES-PCB2-IO))
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The **IO** board (**TERES-PCB2-IO**) is comprised of:
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- USB connector
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- Headphone/debug connector
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- SD card
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- Speaker connector
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- Microphone
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### Power button ([TERES-PCB4-PWR-BTN](A64-TERES/TERES-PCB4-PWR-BTN))
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The **PWR** button board (**TERES-PCB4-PWR-BTN**) handles the keys for powering on and off the laptop.
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### Touch buttons ([TERES-PCB3-TOUCH-BTN](A64-TERES/TERES-PCB3-TOUCH-BTN))
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The **TOUCH** buttons board (**TERES-PCB3-TOUCH-BTN**) contains two buttons for left and right mouse click emulation.
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### Camera (TERES-019-Camera)
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