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Wiki > Main > ArchosVision28 (r4)

Archos Vision 28


This is the page for the Archos Vision 28

Port Status

Main Features

Firmware & Upgrade

Recovery mode

PCB Scans

SSL24568.JPG SSL24572.JPG SSL24577.JPG SSL24578.JPG


  • RockChip RK2705: SoC from Rockhip, we already have a port for it
  • Hinix H27UBG8T2ATR?: flash memory
  • EM639165: 16MB SDRAM
  • RDA 5807: FM tuner chip, we already have a driver for it
  • XPT2046: 4-wire resistive touch controller

OF firmware disassembly

  • lcd panel driver seems to be ili9340 or very similar. It is connected in 16bit parallel mode. The screen resolution is 240x320.
  • DAP utilizes internal dac (no surprise as there is no external codec chip visible on PCB scans)
  • PC0 high keeps power supply (as in other rk27xx devices so far)
  • There seems to be software SPI implementation where PC5 = clk, PC4 = mosi, PC3 = miso. PC2 and PC6 are also referenced but I don't see what they do actually. It looks like interface to XPT2046 configured in single ended mode 8bit resolution.
  • PC7 is set low at the very beginning

I Attachment Action Size Date Who Comment
SSL24568.JPGJPG SSL24568.JPG manage 2747.2 K 20 Mar 2013 - 15:37 AmauryPouly  
SSL24572.JPGJPG SSL24572.JPG manage 3018.1 K 20 Mar 2013 - 15:32 AmauryPouly  
SSL24577.JPGJPG SSL24577.JPG manage 2877.4 K 20 Mar 2013 - 15:35 AmauryPouly  
SSL24578.JPGJPG SSL24578.JPG manage 2926.9 K 20 Mar 2013 - 15:34 AmauryPouly  
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r4 - 28 Mar 2013 - 09:11:02 - MarcinBukat
Copyright by the contributing authors.