view venus/src/core/RF3166.v @ 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 3ed0f7a9c489
children
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module RF3166 (HB_RF_in, Band_Select, Tx_Enable, Vbatt, GND, Vramp, LB_RF_in,
		LB_RF_out, HB_RF_out);

input LB_RF_in, HB_RF_in;
input Band_Select, Tx_Enable;
input GND, Vbatt, Vramp;
output LB_RF_out, HB_RF_out;

/* instantiate the package; the mapping of signals to pins is defined here */

pkg_RF3166 pkg (.pin_1(HB_RF_in),
		.pin_2(Band_Select),
		.pin_3(Tx_Enable),
		.pin_4(Vbatt),
		.pin_5(GND),
		.pin_6(Vramp),
		.pin_7(LB_RF_in),
		.pin_8(LB_RF_out),
		.pin_9(HB_RF_out),
		.pin_10(GND),
		.pin_11(GND),
		.pin_12(GND),
		.pin_13(GND),
		.pin_14(GND),
		.pin_15(GND),
		.pin_16(GND),
		.pin_17(GND),
		.pin_18(GND),
		.pin_19(GND),
		.pin_20(GND),
		.pin_21(GND),
		.pin_22(GND),
		.pin_23(GND),
		.pin_24(GND),
		.pin_25(GND),
		.pin_26(GND),
		.pin_27(GND),
		.pin_28(GND),
		.pin_29(GND),
		.pin_30(GND),
		.pin_31(GND)
	);

endmodule