Hacking hardware for chumby

From Chumby Wiki
Revision as of 14:21, 1 August 2007 by Chumby (Talk | contribs)

Jump to: navigation, search

Note - this page is for hacking of "Ironforge" production hardware.
For information about alpha prototypes, please see Hacking hardware for Foo/Katamari.

What's in a chumby?

  • 350 MHz Freescale iMX21 ARM9 controller
  • 64MB SDRAM on 32-bit data path
  • 64MB NAND Flash ROM
  • Three USB 2.0 full speed ports, one internal, two external
  • Xterasys 3135G 802.11G USB Wifi adapter (ralink chipset)
  • DataImage 320x240 TFT Display with touchscreen
  • 2W stereo speakers, with headphone jack
  • microphone
  • "bend" switch
  • 3-axis accelerometer
  • ARM7 "crypto" processor
  • soft-switch on power, controlled by crypto processor
  • TTL serial port @38400 8N1

Power requirements

The chumby uses a very standard 2.1mm I.D. x 5.5mm O.D. x 9.5mm Female (P-5) barrel connector and runs off 1A at anywhere between 6.5 VDC and 14.5 VDC. it ships with a "wallwart" power supply with US-style prongs, however, it's pretty easy to find a compatible power supply with other form factors.