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Diffstat (limited to 'x68k_usb/README')
| -rw-r--r-- | x68k_usb/README | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/x68k_usb/README b/x68k_usb/README new file mode 100644 index 0000000000..0b61b2c4b3 --- /dev/null +++ b/x68k_usb/README @@ -0,0 +1,129 @@ +X68000 to USB keyboard protocol converter +========================================= +SHARP X68000 is a hobby computer released in Japan.(1987-93) +http://en.wikipedia.org/wiki/Sharp_X68000 + +X68000 keyboard has ALPS linear switches. +- DSETK0016CE01 green linear +- DSETK0023CE03 yellow linear + + +Hardware +-------- +Target MCU is ATMega32u4 but other USB capable AVR will also work. +You can use PJRC Teensy as dev board. + http://www.pjrc.com/teensy/ + +Wiring: + Mini-DIN Teensy + ----------------------------------------------------- + pin1 +5V VCC + pin2 MOUSE - + pin3 RXD PD2(RXD) + pin4 TXD PD3(TXD) NOTE: Not supported yet. + pin5 READY - + pin6 REMOTE - + pin7 GND GND + + +Firmware +-------- +Build: + $ cd x68k_usb + $ make + +And load the binary to MCU with your favorite programmer. +If you use Teensy you can load with PJRC Teensy Loader tool. + http://www.pjrc.com/teensy/loader.html + + +* * * * * * * * * * * * * * * * * * + + +X68000 Keyboard Protocol +======================== +http://kyoutan.jpn.org/uts/pc/pic/x68key/ + + +Connector +--------- +Mini DIN 7pin(female connector on computer side) + 7 6 5 + o o o + 4 o = o 3 + o o + 2 1 + + Mini-DIN + ------------- + pin1 +5V + pin2 MOUSE + pin3 RXD + pin4 TXD + pin5 READY + pin6 REMOTE + pin7 GND + + +Signaling +--------- +- TXD,RXD + Asynchronous, 2400baud, 1-startbit(L), 8-databit, 1-stopbit(H) + +- READY + ready/not ready(1/0) + + +Data from keyboard +------------------ +bit 7 make/break flag(0/1) +bit 6-0 following scan code + + +Data from computer +------------------ +- LED contorol ON/OFF(0/1) + bit 7 1(fixed) + bit 6 全角 + bit 5 ひらがな + bit 4 INS + bit 3 CAPS + bit 2 コード入力 + bit 1 ローマ字 + bit 0 かな + +- Repeat delay + bit 7 0(fixed) + bit 6 1(fixed) + bit 5 1(fixed) + bit 4 0(fixed) + bit 3-0 delay + REPEAT_DELAY = 200+delay*100 ms + default: 500ms + +- Repeat time + bit 7 0(fixed) + bit 6 1(fixed) + bit 5 1(fixed) + bit 4 1(fixed) + bit 3-0 time + REPEAT_TIME = 30+time^2*5 ms + default: 110ms + + +Scan Codes +---------- +,---. ,---. ,-------------------, ,-------------------. ,-----------. ,---------------. +| 61| | 62| | 63| 64| 65| 66| 67| | 68| 69| 6A| 6B| 6C| | 5A| 5B| 5C| | 5D| 52| 53| 54| +`---' `---' `-------------------' `-------------------' `-----------' `---------------' +,-----------------------------------------------------------. ,-----------. ,---------------. +| 01| 02| 03| 04| 05| 06| 07| 08| 09| 0A| 0B| 0C| 0D| 0E| 0F| | 36| 5E| 37| | 3F| 40| 41| 42| +|-----------------------------------------------------------| |------------ |---------------| +| 10 | 11| 12| 13| 14| 15| 16| 17| 18| 19| 1A| 1B| 1C| | | 38| 39| 3A| | 43| 44| 45| 46| +|------------------------------------------------------. 1D | `---=====---' |---------------| +| 71 | 1E| 1F| 20| 21| 2l| 23| 24| 25| 26| 27| 28| 29| | ___| 3C|___ | 47| 48| 49| 4A| +|-----------------------------------------------------------| | 3B|---| 3D| |-----------|---| +| 70 | 2A| 2B| 2C| 2D| 2E| 2F| 30| 31| 32| 33| 34| 70 | `---| 3E|---' | 4B| 4C| 4D| | +`-----------------------------------------------------------| .---=====---. |-----------| 4E| + | 5F| 55 | 56 | 35 | 57 | 58 | 59 | 60| | 72 | 73 | | 4F| 50| 51| | + `---------------------------------------------' `-----------' `---------------' |