comparison venus/src/MCL @ 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 de44df15cf05
children 86f94899bfa3
comparison
equal deleted inserted replaced
69:de44df15cf05 70:8bc2aa52fd23
1360 # Switches 1360 # Switches
1361 1361
1362 part keypad-switch: 1362 part keypad-switch:
1363 manufacturer=E-Switch 1363 manufacturer=E-Switch
1364 manufacturer_part_number=TL3301EF160QJ 1364 manufacturer_part_number=TL3301EF160QJ
1365 description=Tactile switch, SMT J-lead, 160 g force 1365 description=Tactile switch, SMT J-lead, 160 g force, 7.3 mm height
1366 vendor=Digi-Key 1366 vendor=Digi-Key
1367 vendor_part_number=TL3301EF160QJCT-ND 1367 vendor_part_number=TL3301EF160QJCT-ND
1368 npins=4 1368 npins=4
1369 1369
1370 S401: 1370 S401:
1463 part=keypad-switch 1463 part=keypad-switch
1464 hier=mob.keypad.S424.pkg 1464 hier=mob.keypad.S424.pkg
1465 1465
1466 # RESET button 1466 # RESET button
1467 S425: 1467 S425:
1468 part=keypad-switch
1469 hier=mob.reset_sw.pkg 1468 hier=mob.reset_sw.pkg
1469 manufacturer=E-Switch
1470 manufacturer_part_number=TL3301AF260QJ
1471 description=Tactile switch, SMT J-lead, 260 g force, 5.0 mm height
1472 vendor=Digi-Key
1473 vendor_part_number=EG6035CT-ND
1474 npins=4
1470 1475
1471 # charging power slide switch 1476 # charging power slide switch
1472 S701: 1477 S701:
1473 hier=chg_switch 1478 hier=chg_switch
1474 manufacturer=C&K 1479 manufacturer=C&K