fc660c: Add unimap
[tmk_keyboard.git] / keyboard / fc660c / README.md
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503837cd
JW
1FC660C controller
2=================
32017/02/24
fc0fe84a 42017/03/25
503837cd 5
fc0fe84a 6Thread on Geekhack: https://geekhack.org/index.php?topic=88439.0
7
8
9Firmware
10--------
11Just `make` to build firmware. And consult with wiki for further information.
12
13https://github.com/tmk/tmk_keyboard/wiki
14
15
16Pinouts
17-------
18
19 |Switch |Controller |
20 | board | board |Description |Schematic |ATmega32u4
21 |--------|-----------|--------------------------------------|-----------|------------
22 | 1 |20 | FG |FG |GND
23 | 2 |19 | GND |GND |GND
24 | 3 |18 | GND |GND |GND
25 | 4 |17 | 3.3V |V33 |3.3V/5V
26 | 5 |16 | 5V |Vcc |5V
27 | 6 |15 |*Z6-TP1684-4-HYS(o) |FBSTB |PC7
28 | 7 |14 |*Z6-TP1684-2-KEY(i) |OUT |PC6
29 | 8 |13 |*Z2-AD5258-5-SCL(I2C) |SCL |PD0(TWI)
30 | 9 |12 |*Z2-AD5258-4-SDA(I2C) |SDA |PD1(TWI)
31 |10 |11 |*Z4-LV4051A-6-~EN(Col 0-7) |INH_1 |PB4
32 |11 |10 |*Z5-LV4051A-6-~EN(Col 8-F) |INH_2 |PB3
33 |12 | 9 |+Z7-LV07A-5 (LV4051A-9-C) |SEL_C |PB2
34 |13 | 8 |+Z7-LV07A-1 (LV4051A-10-B) |SEL_B |PB1
35 |14 | 7 |+Z7-LV07A-3 (LV4051A-11-A) |SEL_A |PB0
36 |15 | 6 |+Z3-LVC138A-3-C |COL4 |PD6
37 |16 | 5 |+Z3-LVC138A-2-B |COL3 |PD5
38 |17 | 4 |+Z3-LVC138A-1-A |COL2 |PD4
39 |18 | 3 |+Z3-LVC138A-4-~G2A Z6-TP1684-5-~EN |COL1 |PD7
2ed3abb6 40 |19 | 2 |+Z7-LV07A-11-~InsertLED |LED1 |PB5
fc0fe84a 41 |20 | 1 |+Z7-LV07A-13-~CapsLED |LED2 |PB6
503837cd
JW
42
43```
44* 5V intferface
45+ 3.3V interface
46```
47
fc0fe84a 48- Connector on Switch board: https://i.imgur.com/Zi89xO5.jpg
49- Connector on Controller board: https://i.imgur.com/9SZUzYo.jpg
50
51
fad7ebfc 52Key Matrix
53----------
fc0fe84a 54Row5-7 have no key, you can omit scaning on those lines. Topre original controller scans those rows for some reason.
fad7ebfc 55
56 | |0 |1 |2 |3 |4 |5 |6 |7 |8 |9 |A |B |C |D |E |F |
57 |----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
58 | 0|Q |W |E |Tab |R |U |T |Y |O |P |[ |I |] | |\ |Del |
59 | 1|1 |2 |3 |Esc |4 |7 |5 |6 |9 |0 |- |8 |= | |BSpc|Ins |
60 | 2| |LWin|LAlt|LCtl| | | |Spc |RAlt| |RCtl| |Fn |Down|Left|Rght|
61 | 3| |Z |X |LSft|C |N |V |B |, |. |/ |M |RSft|Up | | |
62 | 4|A |S |D |Caps|F |J |G |H |L |; |' |K | | |Entr| |
63 | 5| | | | | | | | | | | | | | | | |
64 | 6| | | | | | | | | | | | | | | | |
65 | 7| | | | | | | | | | | | | | | | |
66
fc0fe84a 67Logic analyzer pics:
4befc879 68- http://i.imgur.com/9XoNTev.png
fc0fe84a 69- https://i.imgur.com/5FCP1Ay.png
70
71This code emuluates what original cotnroller does for matrix scan.
72- https://github.com/tmk/tmk_keyboard/blob/master/keyboard/fc660c/fc660c.c
73
74
75### Row designation
76LV138A(Z3) selects a row line and gives strobe by enabling with ~G2A(18).
77
78 |Row |A/17|B/16|C/15|
79 |----|----|----|----|
80 |0 |0 |0 |0 |
81 |1 |1 |0 |0 |
82 |2 |0 |1 |0 |
83 |3 |1 |1 |0 |
84 |4 |0 |0 |1 |
85 |5 |1 |0 |1 |
86 |6 |0 |1 |1 |
87 |7 |1 |1 |1 |
88
89
90### Column designation
91LV4051A(Z4, Z5) select one of 16 column lines to sense capacitance of switches.
92
93 |Col |A/14|B/13|C/12|Z4-EN/10|Z5-EN/11|
94 |----|----|----|----|--------|--------|
95 |0 |0 |0 |0 |0 |1 |
96 |1 |1 |0 |0 |0 |1 |
97 |2 |0 |1 |0 |0 |1 |
98 |3 |1 |1 |0 |0 |1 |
99 |4 |0 |0 |1 |0 |1 |
100 |5 |1 |0 |1 |0 |1 |
101 |6 |0 |1 |1 |0 |1 |
102 |7 |1 |1 |1 |0 |1 |
103 |8 |0 |0 |0 |1 |0 |
104 |9 |1 |0 |0 |1 |0 |
105 |A |0 |1 |0 |1 |0 |
106 |B |1 |1 |0 |1 |0 |
107 |C |0 |0 |1 |1 |0 |
108 |D |1 |0 |1 |1 |0 |
109 |E |0 |1 |1 |1 |0 |
110 |F |1 |1 |1 |1 |0 |
111
112
113FCC documents
114-------------
115https://fccid.io/RPKFC660C
116
117- schematic: https://fccid.io/pdf.php?id=1888185
118- part list: https://fccid.io/pdf.php?id=1888184
119
120
121Datasheets
122----------
123- Hirose DF14A-20P-1.25H: http://www.mouser.com/ds/2/185/DF14_catalog-939195.pdf
124- LV07A: http://www.ti.com/lit/ds/symlink/sn74lv07a.pdf
125- LV138A: http://www.ti.com/lit/ds/symlink/sn74lvc138a.pdf
126- LV4051A: http://www.ti.com/lit/ds/symlink/sn74lv4051a.pdf
127- AD5258: http://www.analog.com/media/en/technical-documentation/data-sheets/AD5258.pdf
128
129
1303.3V power supply
131-----------------
4befc879 132LV07A and LVC138A are 5V-tolerant and can be powered with 5V, the keyboard will work only with 5V power supply. It may not be completely safe to operate LV138A with 5V Vcc, its datasheet says:
503837cd 133
fc0fe84a 134> Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
5d7ee9d9 135
4befc879 136Digipot AD5258
137--------------
138Controller can operate AD5258 via I2C to change actuation point of keys. This may make keyboard unusable accidentally and it will be difficult to recovery in some situation. For safety firmware doesn't support it at this point, though.
139
140Lower value of RDAC register causes shallower actuation point.
5d7ee9d9 141
142Resources
143---------
fc0fe84a 144- Pics: https://imgur.com/a/UTR8Z
Imprint / Impressum