FreeCalypso > hg > freecalypso-schem2
view venus/src/primitives @ 70:8bc2aa52fd23
manual RESET button new part: 260 g force, shorter actuator
One of the main envisioned use cases for FC Venus is field demonstration:
the board will be carried around, mounted on a sheet of acrylic or somesuch,
it will have a battery and an antenna connected, there will be a test SIM
with active service inserted, and the setup will be ready to demonstrate
as a working phone at a moment's notice. But when a demo is not actively
in progress, the fully assembled setup will be transported around in a big
and loose ESD bag, and it will need to be equivalent to a traditional phone
in its switched-off state: battery present, RTC keeping time, but not
switched on all the time.
Having a RESET button of the same keyswitch type as used for the regular
keypad and PWON would cause a problem for such field transport scenarios:
any spurious press of this button would cause a "misc boot" switch-on.
Short spurious presses of PWON are filtered out by the firmware (automatic
power-off if the button isn't held down long enough), but the same cannot
be done for super-low-level nTESTRESET. However, a button with significantly
greater operating force and a shorter actuator (not sticking out to the same
height as the regular keypad buttons) should be much safer.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 02 Dec 2021 22:40:39 +0000 |
| parents | a1b55af7f04d |
| children | 541b55e6bf47 |
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/* * This file defines the primitives to be instantiated from the structural * Verilog source for the board: IC package types, basic components and * subpackages to be mapped later in the MCL binding step. */ resistor numpins 2; capacitor numpins 2; inductor numpins 2; rlc_generic numpins 2; /* "any" RLC for matching network topologies */ resistor_slot mapped_pins (side1, side2); transistor_slot mapped_pins (E, B, C); mosfet mapped_pins (G, S, D); /* TI packages */ pkg_179GHH grid "pkg_179GHH.bgadef"; pkg_100GGM grid "pkg_100GGM.bgadef"; pkg_Rita_RF numpins 49; pkg_TPA6203A1 mapped_pins (BYPASS, GND, In_neg, In_pos, SHUTDOWN, VDD, Out_pos, Out_neg); /* non-TI RF components */ pkg_RF3166 numpins 31; pkg_M034F numpins 19; /* Flash+RAM MCP (two possibilities) */ pkg_TLA064 grid "pkg_TLA064.bgadef"; pkg_TLC056 grid "pkg_TLC056.bgadef"; /* misc IC packages */ pkg_LQFP48 numpins 48; pkg_IC_5pin numpins 5; pkg_IC_8pin numpins 8; pkg_SOT23_6 numpins 6; pkg_XSON6 numpins 6; /* logic IC subpackages */ buffer_slot_basic mapped_pins (A, Y); buffer_slot_od mapped_pins (A, Y); buffer_slot_3state mapped_pins (A, nOE, Y); logic_ic_common mapped_pins (Vcc, GND); x541_common mapped_pins (Vcc, GND, nOE1, nOE2); /* crystal oscillator components */ xtal_2pin_pkg numpins 2; xtal_4pin_pkg numpins 4; varactor_diode mapped_pins (A, C); /* * The reference design we are copying calls for a couple of RF chip * attenuators. They are symmetrical in that pins 1 and 2 are equally * suitable as either the input or the output, but the package shape is * asymmetrical, thus it is a PCB layout decision which pin will be the * input and which will be the output. * * We shall use a mapped_pins primitive and two different pinout mappings * at the MCL binding stage, to be selected at layout time. */ chip_attenuator mapped_pins (In, Out, GND1, GND2); /* connectors */ header_2pin numpins 2; conn_3pin numpins 3; header_5pin numpins 5; header_14pin numpins 14; pkg_SMA_F numpins 5; pkg_TRRS_jack numpins 6; conn_miniUSB_plus4 numpins 9; /* misc peripherals */ lcd_module_fp numpins 36; pkg_SIM_socket numpins 8; pkg_buzzer numpins 4; basic_LED mapped_pins (A, C); misc_diode mapped_pins (A, C); clamp_diode_pair mapped_pins (Signal, Pos_rail, Neg_rail); switch_2pin numpins 2; switch_4pin numpins 4; /* * Resistor footprint with two extra "virtual pins" for sensing - see * ../doc/Charging-circuit for explanation. */ resistor_with_sense mapped_pins (side1_current, side1_sense, side2_current, side2_sense); /* * The following primitives are entirely non-physical EDA artifacts * for star routing. */ starpoint_2way numpins 2; starpoint_3way numpins 3;