mirror of
https://github.com/qmk/qmk_firmware
synced 2024-11-16 08:56:11 +00:00
89 lines
1.7 KiB
Text
89 lines
1.7 KiB
Text
|
Power Saving
|
||
|
|
============
|
||
|
|
|
||
|
|
|
||
|
|
MCU+HHKB Power Comsumption
|
||
|
|
--------------------------
|
||
|
|
Battery drive:
|
||
|
|
idle 18.9mA
|
||
|
|
active 35.8mA
|
||
|
|
|
||
|
|
USB powered:
|
||
|
|
40.0mA
|
||
|
|
52mA 01/17
|
||
|
|
|
||
|
|
Other keyboards:
|
||
|
|
HHKB Pro 55mA
|
||
|
|
HHKB Pro2 140mA
|
||
|
|
HHKB Pro 42mA(Alt)
|
||
|
|
HHKB Pro2 52mA(Alt BT controller USB mode)
|
||
|
|
HHKB Pro2 88mA(Alt BT controller BT mode connected)
|
||
|
|
HHKB Pro2 68mA(Alt BT controller BT mode config mode)
|
||
|
|
Poker X 6mA
|
||
|
|
Infinity 24mA(TMK)
|
||
|
|
65mA(kiibohd)
|
||
|
|
|
||
|
|
|
||
|
|
HHKB key switch power control
|
||
|
|
-----------------------------
|
||
|
|
MOS FET Nch: BSS138 or IRLML6344T, either works and no apparent difference.
|
||
|
|
Normally on(pull-up) or off(pull-down)? interms of power saving it prefers pull-down?
|
||
|
|
|
||
|
|
Pull-down will be better for power saving, normally off.
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
Used Timer
|
||
|
|
----------
|
||
|
|
|
||
|
|
8MHz clock
|
||
|
|
----------
|
||
|
|
1) 16MHz xtal with system prescaler div2: F_CPU=8MHz, F_USB=16MHz
|
||
|
|
2) 8MHz xtal with div1: F_CPU=8MHz, F_USB=8MHz
|
||
|
|
Hardware USART doesn't work at 115200bps with 8MHz(F_CPU).
|
||
|
|
|
||
|
|
workaround:
|
||
|
|
a) use Sotwre serial for communcation with RN-42
|
||
|
|
b) reduce baud of RN-42 to lower rate;(factory default is 115200bps)
|
||
|
|
10/03
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
Slave mode
|
||
|
|
----------
|
||
|
|
Discovery/Inquire
|
||
|
|
Connect/Page
|
||
|
|
|
||
|
|
SI,0012
|
||
|
|
SJ,0012
|
||
|
|
InqWindw=0100
|
||
|
|
PagWindw=0100
|
||
|
|
|
||
|
|
|
||
|
|
Sniff mode
|
||
|
|
----------
|
||
|
|
0.625ms * <hex>
|
||
|
|
SW,0320 Very sluggish. Type is not lost but very slow to register.
|
||
|
|
SW,0160 Still sluggish. may transposed? can type but ...
|
||
|
|
Mouse point move intermittently
|
||
|
|
SW,0020 feel a bit late like stumble(20ms)
|
||
|
|
SW,0010 feel no latency(10ms)
|
||
|
|
|
||
|
|
|
||
|
|
Deep sleep
|
||
|
|
----------
|
||
|
|
SW,8010
|
||
|
|
|
||
|
|
|
||
|
|
TX power
|
||
|
|
--------
|
||
|
|
SY,fff4
|
||
|
|
|
||
|
|
|
||
|
|
IO pins
|
||
|
|
-------
|
||
|
|
S%,1000 status led and connection control don't work
|
||
|
|
GPIO5: status LED
|
||
|
|
GPIO6: Connection control
|
||
|
|
GPIO2: linked status
|