Benutzer:Siro/modularprojectconcept

Problem

You got a brilliant idea and want to create a new project.
For example an Ethernet mp3 player.
You need:

a touchscreen

a keyboard

an amplifier

flash storage

mp3 decoder

network card
For each hardware, you have to know the bus specification (bus width, controller, timings, commands, ...). If you need the hardware for another project you have to create a new layout, that cost time and money.

Idea

Using a modular PC like environment.
Instead of using a single controller chip, I'm gonna use multiple small "slave"-chips that are connected to a "master"-chip.

Pro:

modular

easy: no need to know what hardware, interface, controller, timings are connected to the slave, just give it the orders

fast project setup
Contra:

limited by busspeed (possible up to 1Mbit/s)

multiple devices, multiple errorsources

Concept

Using the TWI-Interface (i2c) to connect all chips.
Every chip reports the master it abilities.
Multiple layers for maximum overview and compatibility.

Master

|

|--Slave 1

|    |--LCD

|    |--keyboard

|--Slave 2

|    |--mouse

|--Slave 3

|    |--network interface

...

|--Slave n

    |--hardware x