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Arduino Memoire Grand Consommateur (voir la source)
Version du 1 septembre 2013 à 13:12
, 1 septembre 2013 à 13:12Page créée avec « {{Arduino-Memoire-NAV}} == Intro == Il existe des périphérique ou des pilotes qui nécessite de grande quantité de mémoire SRAM pour fonctionner. Voici quelque-uns de ce... »
{{Arduino-Memoire-NAV}}
== Intro ==
Il existe des périphérique ou des pilotes qui nécessite de grande quantité de mémoire SRAM pour fonctionner. Voici quelque-uns de ces grand consommateurs:
== Carte SD ==
{{ADFImage|Arduino-Memoire-50.jpg}} <span>Anything with an SD or Micro-SD interface requires a 512 byte SRAM buffer to communicate with the card.</span>
== Les Pixels ==
{{ADFImage|Arduino-Memoire-51.jpg}} <span>Each pixel requires just 3 bytes of SRAM to store the color. But those bytes start to add up when you have many meters of strip or a large array.<br />On an Uno, you might be able to drive as many as 500 pixels - assuming you don't use much SRAM for anything else.</span>
== Matrices RGB ==
{{ADFImage|Arduino-Memoire-51.jpg}} <span>Like the pixels, these matrix displays require several bytes of SRAM per pixel.
The 32x32 model requires about 1600 bytes of SRAM. The 16x32 needs around 800 bytes.</span>
== Afficheurs OLED ==
{{ADFImage|Arduino-Memoire-52.jpg}} <span>These only require 1 byte for every 8 pixels, but due to their high resolution, there are still a lot of pixels!
The 128x64 version requires 1K of SRAM
The 128x32 uses 512 bytes.</span>
== Afficheur LCD ST7565 ==
{{ADFImage|Arduino-Memoire-53.jpg}} <span>Like the monochrome OLEDs, they only need 1 byte for every 8 pixels, but they have a lot of pixels, so they require a 1K buffer.</span>
== Afficheur e-Ink ==
{{ADFImage|Arduino-Memoire-54.jpg}} <span>e-Ink... pour encre électonique. These high-resolution monochrome displays support some basic drawing modes that do not require in-processor buffering. But to enjoy the full capabilities of the Adafruit GFX library, a SRAM buffer is necessary.
The 2.0" version of this display requires 3K of SRAM, so GFX is only usable with a Mega.</span>
{{Arduino-Memoire-TRAILER}}
== Intro ==
Il existe des périphérique ou des pilotes qui nécessite de grande quantité de mémoire SRAM pour fonctionner. Voici quelque-uns de ces grand consommateurs:
== Carte SD ==
{{ADFImage|Arduino-Memoire-50.jpg}} <span>Anything with an SD or Micro-SD interface requires a 512 byte SRAM buffer to communicate with the card.</span>
== Les Pixels ==
{{ADFImage|Arduino-Memoire-51.jpg}} <span>Each pixel requires just 3 bytes of SRAM to store the color. But those bytes start to add up when you have many meters of strip or a large array.<br />On an Uno, you might be able to drive as many as 500 pixels - assuming you don't use much SRAM for anything else.</span>
== Matrices RGB ==
{{ADFImage|Arduino-Memoire-51.jpg}} <span>Like the pixels, these matrix displays require several bytes of SRAM per pixel.
The 32x32 model requires about 1600 bytes of SRAM. The 16x32 needs around 800 bytes.</span>
== Afficheurs OLED ==
{{ADFImage|Arduino-Memoire-52.jpg}} <span>These only require 1 byte for every 8 pixels, but due to their high resolution, there are still a lot of pixels!
The 128x64 version requires 1K of SRAM
The 128x32 uses 512 bytes.</span>
== Afficheur LCD ST7565 ==
{{ADFImage|Arduino-Memoire-53.jpg}} <span>Like the monochrome OLEDs, they only need 1 byte for every 8 pixels, but they have a lot of pixels, so they require a 1K buffer.</span>
== Afficheur e-Ink ==
{{ADFImage|Arduino-Memoire-54.jpg}} <span>e-Ink... pour encre électonique. These high-resolution monochrome displays support some basic drawing modes that do not require in-processor buffering. But to enjoy the full capabilities of the Adafruit GFX library, a SRAM buffer is necessary.
The 2.0" version of this display requires 3K of SRAM, so GFX is only usable with a Mega.</span>
{{Arduino-Memoire-TRAILER}}