pull/1/head
tmk 10 years ago
parent 1f96edaed6
commit 60096e11c7

@ -1,12 +1,37 @@
Roving RN-42
============
TODO
----
Bug:
- with Nexus5 keyboard and mouse are very laggy.
- lose USB connection during power-down mode
- USB initialize code in main() causes this - WRONG
- Do not power-down during USB connection is active - DONE 11/11
(USB_DeviceState == USB_DEVICE_Configured) is used to check USB connection
matrix_power_down() matrix.c - 11/23
Todo:
Design:
- remove MCU dependent power saving code from core/keyboard
- it should be located in project matrix.c - DONE 11/23
- HHKB matrix.c needs matrix_prev?
- is_modified() is obsolete now. really needs?
LUFA:
USB connection check: state of USB deivce
- USB_DeviceState:
USB_Deivce_State_t { Unattached, Powered, Default, Addressed, Configured*, Suspended* }
- USB_IsInitialized: state of LUFA core setup
becomes true in USB_Init() USBController_AVR8.c
becomes false in USB_Disable() USBController_AVR8.c
- USB_VBUS_GetStatus(): state of VBUS(power/connection)
- USB_Disable() detaches, disables all interrupts, controller, PLL, regulater.
Power saving:
- confirm suspend mode lufa.c: matrix_power_*, suspend_wakeup_condition
- 8MHz clock
- When not connected in a few minutes get into deep sleep to save battery life
- CTS is needed for waking up from deep sleep? How deep sleep is activated?
@ -19,6 +44,9 @@ Power saving:
- high resistor 100K/1M?
capacitor 10nF
http://www.eevblog.com/forum/beginners/measuring-battery-voltage-without-consuming-current/
- During USB suspend change clock source to internal RC from external Xtal(6.8)
- FRZCLK: you can freeze clock for power saving. still WAKEUPI and VBUSTI interrupts are available while freezing.(21.7.3)
- Suspend: Clear Suspend Bit, Freeze clock, disable PLL, MCU sleep(21.13)
Improving:
- BT LED; connecting, linked, sleeping, deep sleeping
@ -306,6 +334,10 @@ SM,5 Auto Connect ANY Mode (Mode =ANY)
SM,6 automatically reconnect(Mode =Pair)
confirm: auto connect works well but difficult to enter command mode.
SR,Z removes all remote addresses for reconnecting.
can be used to connect another host
SR,I registers last inquiry address
Fast data mode
--------------

@ -0,0 +1,102 @@
RN-42
=====
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
Ver 6.15 04/26/2013
(c) Roving Networks
***Settings***
BTA=00066667BBE9
BTName=tmkBT-BBE9
Baudrt(SW4)=115K
Mode =DTR
Authen=1
Bonded=0
Rem=001BDC06415B
***ADVANCED Settings***
SrvName= keyboard/mouse
SrvClass=0000
DevClass=1F00
InqWindw=0012
PagWindw=0012
CfgTimer=255
StatuStr=NULL
HidFlags=3c
DTRtimer=8
KeySwapr=0
***OTHER Settings***
Profile= HID
CfgChar= $
SniffEna=8010
LowPower=0 S|,
TX Power=fff4 SY,
IOPorts= 0
IOValues=0
Sleeptmr=0
DebugMod=0
RoleSwch=0
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