Revision as of 19:23, 19 August 2007

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

What questions do you have about hacking the hardware?

Please post questions here, and someone will attempt to create a sub-page to answer it! Or, check out the forum to see if your question has already been answered.

What's in a chumby?

• 350MHz Freescale iMX21 MC94MX21DVKN3 ARM9 controller Datasheet Technical Information
• Samsung 64MB SDRAM on 32-bit data path
• Hynix HY27US 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 320hx240v TFT display with touchscreen
• Texas Instruments TSC2110 Programmable Touchscreen Controller with Stereo DAC Datasheet?
• 2W stereo speakers, with headphone jack
• Built-in microphone
• "Bend" switch
• Kionix KXP74-1050 3-axis accelerometer Datasheet Specifications
• STMicroelectronics STR711FR0/1 ARM7 "crypto" processor Datasheet
• 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.