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7 Commits

Author SHA1 Message Date
Werner Almesberger
9ad96bd5f9 Board bringup: talk to the chip and read IDs. 
- atusd/ERRATA: mention that the reset circuit can go, as expected
- atusd/tools/Makefile: add include path to at86rf230.h
- atusd/tools/lib/atusd.c: include atusd.h, for consistency checking
- atusd/tools/lib/atusd.c (spi_begin, spi_end, spi_data_in, spi_data_out,
  spi_send_partial, spi_recv, spi_finish, spi_send): low-level functions
  to access our modified SPI
- atusd/tools/lib/atusd.h, atusd/tools/lib/atusd.c (atusd_reg_write,
  atusd_reg_read): register read and write access
- atusd/tools/try.c: read and print chip IDs
 2010-09-05 16:59:59 -03:00
Werner Almesberger
a18d5969bd Next part of board bringup: reset and power cycling. 
- atusd/ERRATA: one more problem: the transistor footprint is wrong
- atusd/tools/lib/atusd.c (atusd_cycle, atusd_reset): added power cycling and
  hardware reset
- atusd/tools/lib/atusd.h: be nice and make a header file
- atusd/tools/try.c: be nice and use header files (caught a bug as well)
 2010-09-05 14:07:01 -03:00
Werner Almesberger
86e556ce92 First part of the board bringup: power and clock. 
- atusd/ERRATA: variations of the circuit being debugged from the design
- tools/Makefile, tools/try.c, tools/lib/atusd.c: user-space tool to enable
  the board and (in the future) establish communication
- atusd/sim/clk.sch: simulation of CLK attenuation circuit with capacitative
  load from scope probe
 2010-09-04 23:14:57 -03:00
Werner Almesberger
fc0acf1787 Assorted small layout improvements. 
- atusd/atusd.brd: tightened routing of nSS and XTAL1 net to improve ground
  place coverage
- modules/0805-6.fpd: widened pads for easier manual soldering (note: this
  is still ad hocery)
- atusd/atusd.brd: use thinner track to connect feed line to comply with
  DRC
- atusd/atusd.brd: version is now 100903
 2010-09-03 08:02:07 -03:00
Werner Almesberger
eb6f066bbd atusd/cam/: CAM data for cutting the PCB. 2010-09-02 23:50:45 -03:00
Werner Almesberger
dd999ebba3 atusd/: first try at a uSD-based board. Improved RF design. 2010-09-02 23:02:46 -03:00
Werner Almesberger
7c1383d43e Added components (transistor and balun) for the uSD variant. 
- atusd/Makefile:
- AUTHORS, atusd/Makefile, atusd/dtc123.lib, atusd/dtc123je.fpd: borrowed
  the DTC123 symbol (Alvaro Lopes) and footprint (Dave Ball) from
  gta02-core. Note that this isn't the part I'm using in my prototype, and
  I'm trying to get rid of it entirely, so all this will change before too
  long.
- components/BOOKSHELF, components/INFO, components/balun.lib,
  modules/Makefile, modules/INFO, modules/0805-6.fpd: added the Wuerth
  748421245 balun

makefile
 2010-09-02 18:15:28 -03:00