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"Teensy" (Atmega32u4) as a substitute for the Prop Plug/ADC/Bootloader/(NOT usb — Parallax Forums

"Teensy" (Atmega32u4) as a substitute for the Prop Plug/ADC/Bootloader/(NOT usb

TubularTubular Posts: 4,718
edited 2010-01-07 20:24 in General Discussion
I came across this neat Teensy module from PJRC recently, www.pjrc.com/teensy/index.html

For $18 it includes a (<$3) micro with USB capability, 32kB flash, 1kB eeprom, 12ch 10bit ADC. The 33kB has me thinking 'smart boot loader' again, but what I really would like to know is what the USB could do? Could it host a flash memory key for instance?

Post Edited (Tubular) : 1/7/2010 8:32:14 PM GMT
Teensy_vs_PropPlug.JPG
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Breakout.JPG
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Comments

  • LeonLeon Posts: 7,620
    edited 2010-01-07 14:40
    It wont' work, USB host capability is needed for a USB memory stick. It could be done with an MCU with USB OTG.

    Leon

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Amateur radio callsign: G1HSM
  • Mike GreenMike Green Posts: 23,101
    edited 2010-01-07 15:05
    The 32kB flash is needed for any "smart boot loader" program and would reduce what's available. The USB would be client-only. You could use it as a PropPlug substitute, but you couldn't host anything with the existing USB stack.
  • TubularTubular Posts: 4,718
    edited 2010-01-07 20:24
    Thanks Leon and Mike

    I guess the AT90USBKEY would do it for $30, but its a lot chunkier.
    www.atmel.com/dyn/products/tools_card.asp?tool_id=3879
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