diff options
Diffstat (limited to 'keyboard')
| -rw-r--r-- | keyboard/hhkb_rn42/MEMO.txt | 68 |
1 files changed, 46 insertions, 22 deletions
diff --git a/keyboard/hhkb_rn42/MEMO.txt b/keyboard/hhkb_rn42/MEMO.txt index 28c5a09d3..02cd2e188 100644 --- a/keyboard/hhkb_rn42/MEMO.txt +++ b/keyboard/hhkb_rn42/MEMO.txt @@ -1,27 +1,35 @@ Roving RN-42 ============ -07/16 After fix of voltage dividor on GPIO6, had a trouble that it could not send a char to BT module, though could receive. - Found R8 had wrong 1K resistor and changed to 10K, after that it can send to the module again. Not sure how it had sent with the wrong 1K before. -07/18 On Linux, had an USB related trouble; keyobard or console didn't work for some reason. Changing PID cured this problem. Very annoying, took very long time before resolved it. - - TODO ---- +Power saving: +- When not connected in a few minuts get into deep sleep to save battery life +- CTS is needed for waking up from deep sleep? How deep sleep is activated? + +Improving: +- Status LED; connecting, liked, low battery, sleeping, deep sleeping +- Battry voltage display by command; like full(solid), medium(blink), low(flash) +- move rn42 to protocol directory when it becomes reusable stack - LUFA sendchar should be buffered and serial_uart.c buffur size is too large(256). -- Factroy reset doesn't work; need to test again. 10K pull-up is too high? -- Lipo voltage ADC sensing -- Lipo charger configuration: fast charge time: USB charger spec? -- Low voltage alarm: LED indcates voltage of Lipo -- CTS/RTS lines are needed? just connect in loop back if no flow control is needed. -- CTS is needed for waking up from deep sleep? -- Serial API callback when data are available/received(and when send buffer is available) -- Serial API instance several serial ports can be used -- DCDC converter: squeaky inducter with onsemi NCP1402 -- Lipo charger MCP73831: needs capacitor 4.7uF *2 + +Testing: +- Factroy reset doesn't work; need to **test again** 10K pull-up is too high? +- Lipo voltage ADC value is not stabilized +- DCDC converter: squeaky inducter; try other inductors + - Keymap layer bug: during space is pressed(mousekey) press Fn(HHKB) then release space before Fn, in result HHKB layer is locked(toggled) unintentionally. + DONE: +- Lipo charger configuration: fast charge time: USB charger spec? -- used 2kohm +- use LED of charger to alarm low battery. LED should be powered directly from Lipo? - cancel; powered from VUSB +- Use RTS in serial_uart.c to resolve missing chars from help message of RN-42 - done +- CTS/RTS lines are needed? just connect in loop back if no flow control is needed. - done +- add IO pin to charger status CHRG; LED control(low) and detect charge status(input HiZ) 07.24 +- LINKED: add trace on PIO2 to PF6 07.24 +- Lipo voltage ADC sensing +- Lipo charger MCP73831: needs capacitor 4.7uF *2 - USB connection check - 07.01 - BT on/off check: whether RX line is pulled up? - checking RTS 07.01 - USB/BT switching BT is on -> BT, BT is off -> USB - 07.01 @@ -30,22 +38,35 @@ DONE: - Power selector doesn't work; Q4 MOSFET leaks from Lipo to USB power line. -- use Schottky instead 07/04 + +TROUBLE SHOOT +------------- +07/16 After fix of voltage dividor on GPIO6, had a trouble that it could not send a char to BT module, though could receive. + Found R8 had wrong 1K resistor and changed to 10K, after that it can send to the module again. Not sure how it had sent with the wrong 1K before. + +07/18 On Linux, had an USB related trouble; keyobard or console didn't work for some reason. Changing PID cured this problem. Very annoying, took very long time before resolved it. + + + Lipo ---- +850mA lasts around 9 hours(07/28) + Sparkfun Polymer Lithium Ion Battery 850mAh: https://www.sparkfun.com/products/341 Lipo Cell spec: https://www.sparkfun.com/datasheets/Batteries/063048%20Li-polymer.pdf Protection spec: http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Prototyping/BatteryProtection.pdf - min typical max -over-charge 4.255 4.280 4.305 -over-charge discover? 4.030 4.080 4.130 -over-discharge 2.827 2.900 2.973 -over-discharge discover 3.022 3.100 3.178 + min typical max + over-charge 4.255 4.280 4.305 + over-charge discover? 4.030 4.080 4.130 + over-discharge 2.827 2.900 2.973 + over-discharge discover 3.022 3.100 3.178 ADC voltage monitor: voltage divider 10K+10K(0.5) - ADC=V*0.5/2.56*1024 + ADC=V*0.5/2.56*1024 + V ADC ------------------ 4.20 0x347(839) @@ -134,7 +155,9 @@ R,1 reboot Apple iOS --------- -Cannot supported without apple iAP authentication chip. +Keyboard can be used with iPhone, but mouse cannot. +To operate iOS with keyboard is not so useful, though. +There may be iOS specific scancodes? HID flag register @@ -158,6 +181,7 @@ GH 0100: Joystick 1xxx: reserved + Out report - Indicator ---------------------- 0xFE 0x02 0x01 <LED_state> |