Difference between revisions of "Lisa"

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B O O Z . L B R    
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B O O Z . L B R ---- edited by gany, who doesn't yet have rights to commit to that folder, so please don't change library file as long as this text is here!!!
edited by gany, who doesn't yet have rights to commit to that folder, so please don't change library file as long as this text is here!!!
 
  
  

Revision as of 21:34, 11 January 2010

Lisa ( the Lost Illusions Serendipitous Autopilot) is a STM32/Overo board designed to run Paparazzi

TODO

  • Generic
    • JTAG on STM32: ok
    • I2C on STM32:
    • SPI on STM32:
    • Pressure sensors:
    • USB for gumstix : does 5V need to be switchable ? (to allow reset from the gumstix)
    • Make sure STM32 can interrupt overo


B O O Z . L B R ---- edited by gany, who doesn't yet have rights to commit to that folder, so please don't change library file as long as this text is here!!!


  • Antoine:
    • Take todo's from above associate to names
    • Todo's from sheet 3
    • Check's from sheet 5
    • Pressure sensor instruction to gany (redo airspeed computation), so he can finish the schematic for that (or finish it directly in the schematic)
    • work with piotr on connecting the missing wires on the STM
    • Check the routing rules below and add if planned on routing a certain part in a specific way
    • Give Gany commit rights to the lbr folder (booz.lbr) and the lisa folder
  • Esden:
    • STM32 spelling and connection check
    • Fix STM32 footprint pad sizes
    • howto for STM32 gcc gdb toolchain (blinking LED or similar)
    • Routing rules that have to be followed
    • bummer Piotr, you're too fast
  • Gany:
    • Check FT2232 footprint hw/lbr/booz.lbr qfn-64 size & pinout
      • -> Changed pad size from 0.6 x 0.4 to 0.75 x 0.25 and moved pin1 indicator outside the chip.
    • Place components
    • Route board
    • Send for production 4pcb/pcbcard(china)/sunstone

Hardware

The hardware is still in development. The current CAD files are maintained in savannah svn in the paparazzi4/trunk/hw/lisa directory. Software development is done on a Overo/Summit + Olimex STM32-H103 dev board

Lisa proto.jpg

Software

STM32 toolchain

You can use the summon-arm-toolchain script to build the required toolchain. For the default values of the Paparazzi Makefile to work, you should set

PREFIX=/opt/stm32/toolchain/arm-elf and LIBSTM32_EN=1

Open Embedded

Open Embedded is the linux distribution used on the overo. You can follow the instructions on gumstix's website to build a complete cross development environment. Paparazzi's Makefile will default to look for it in /overo-oe


Status

Routing Rules

  • 6mil traces/spacings for signals
  • 12mil traces/spacings for power traces (this is min value, otherwise as wide as possible or even planes if possible)
  • 6mil layout grid
  • Layer stacking:
    • Top: Signal + Ground plane
    • Route2: Ground plane(s) (Separate analogue and digital ground)
    • Route15: Power plane(s)
    • Bottom: Signal + Ground plane
  • 0.4mm vias with 0.1mm restring