Skip to content

Latest commit

 

History

History

news_usb

Folders and files

NameName
Last commit message
Last commit date

parent directory

..
binary
binary
 
 
Makefile
Makefile
 
 
README.md
README.md
 
 
config.h
config.h
 
 
keymap.c
keymap.c
 
 
matrix.c
matrix.c
 
 
tone.c
tone.c
 
 
unimap_plain.c
unimap_plain.c
 
 
unimap_trans.h
unimap_trans.h
 
 

README.md

Sony NEWS keyboard converter

Sony NEWS is a BSD workstation with 68K/MIPS released in 1987 in Japan.

This converter allows NEWS keyboard to be connected to modern PC via USB. It works with NWP-5461 and NWP-411A.

Limitations:

  • LEDs on NWP-5461 is not supported.
  • Mouse is not supported.

Discussion:

Resources:

Wiring

Use PD2(USART RXD) for 'Keyboard Data' pin and give power with VCC and GND. Other pins are optional.

AVR     NEWS
------------------------
PD0     7 Mouse Data
PD1     2 BZ(Speaker)
PD2     3 Keyboard Data
PD3     6 Keyboard Command(NWP-5461)
PD4     8 POWER ON Switch(NWP-5461)
VCC     1 VCC
GND     5 GND

Target microcontroller is Atmel ATMega32U2 by default but porting this project to other 8-bit AVR controllers would be easy.

Protocol

NEWS keyboard protocol is a usual asynchronous serial communication. You can receive data from the keyboard easily with UART of micro controller.

  • TTL level
  • 9600bps
  • 1-start bit
  • 8-data bit
  • non-parity
  • 1-stop bit.

Its scan code is one byte consists of 1-bit release(break) flag at MSB and 7-bit code. For example 0x29 is sent when 'a' key is pressed and 0xA9 when released.

MSB         LSB
7 6 5 4 3 2 1 0   bit
| | | | | | | |
| +-+-+-+-+-+-+-- scan code(00-7F)
+---------------- break flag: sets when released

Scan Codes

NWP-5461

,---.   ,------------------------, ,------------------------. ,---------.                   
|Pow|   | F1 | F2 | F3 | F4 | F5 | | F6 | F7 | F8 | F9 | F10| | F11| F12| ,-----------.
`---'   `------------------------' `------------------------' `---------' |  *|  /|  +|    
,-------------------------------------------------------------. ,---. ,---------------|
|Esc|  1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|  \|  BS | |Hlp| |  7|  8|  9|  -|
|-------------------------------------------------------------| |---| |---------------|
|Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|Del|   | |Ins| |  4|  5|  6|  ,|
|---------------------------------------------------------'   | |---| |---------------|
|Ctrl  |  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|  `|Return| |Clr| |  1|  2|  3|   |
|-------------------------------------------------------------| |---| |-----------|Ent|
|Shift   |  Z|  X|  C|  V|  B|  N|  M|  ,|  ,|  /|   |Shift   | |PgU| |  0|  .| Up|   |
|-------------------------------------------------------------| |---| |---------------|
|Alt  |Gui |Alt |         Space     |          |Gui|App|Ctrl  | |PgD| |Tab|Lef|Dow|Rig|
`-------------------------------------------------------------' `---' `---------------'
 
,---.   ,------------------------, ,------------------------. ,---------.                   
| 7A|   | 01 | 02 | 03 | 04 | 05 | | 06 | 07 | 08 | 09 | 0A | | 68 | 69 | ,-----------.
`---'   `------------------------' `------------------------' `---------' | 64| 65| 52|
,-------------------------------------------------------------. ,---. ,---------------|
| 0B| 0C| 0D| 0E| 0F| 10| 11| 12| 13| 14| 15| 16| 17| 18|  19 | | 6A| | 4B| 4C| 4D| 4E|
|-------------------------------------------------------------| |---| |---------------|
|  1A | 1B| 1C| 1D| 1E| 1F| 20| 21| 22| 23| 24| 25| 26| 27|   | | 6B| | 4F| 50| 51| 56|
|---------------------------------------------------------'   | |---| |---------------|
|  28  | 29| 2A| 2B| 2C| 2D| 2E| 2F| 30| 31| 32| 33| 34|  35  | | 6C| | 53| 54| 55|   |
|-------------------------------------------------------------| |---| |-----------| 5A|
|  36    | 37| 38| 39| 3A| 3B| 3C| 3D| 3E| 3F| 40| 41|   42   | | 6D| | 57| 59| 58|   |
|-------------------------------------------------------------| |---| |---------------|
| 43  | 44 | 45 |       46          |    47    | 48| 49|  4A  | | 6E| | 66| 5B| 5C| 5D|
`-------------------------------------------------------------' `---' `---------------'

POWER ON Switch registers scan code 0x7A(0xFA) and pin 8 is not needed actually.

NWP-411A

        ,------------------------, ,------------------------.
        | F1 | F2 | F3 | F4 | F5 | | F6 | F7 | F8 | F9 | F10|
        `------------------------' `------------------------'
,-------------------------------------------------------------.  ,---------------.
|Esc|  1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|  \|  BS |  |  7|  8|  9|  -|
|-------------------------------------------------------------|  |---------------|
|Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|Del|   |  |  4|  5|  6|  +|
|---------------------------------------------------------'   |  |---------------|
|Ctrl  |  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|  `|Enter |  |  1|  2|  3|  ,|
|-------------------------------------------------------------|  |---------------|
|Shift   |  Z|  X|  C|  V|  B|  N|  M|  ,|  ,|  /|   | Shift  |  |  0| ↑ |  .|   |
|-------------------------------------------------------------|  |-----------|Ent|
|Alt   |Cap|     |         Space         |     |   |   |      |  | ← | ↓ | → |   |
`-------------------------------------------------------------'  `---------------'
        ,------------------------, ,------------------------.
        | 01 | 02 | 03 | 04 | 05 | | 06 | 07 | 08 | 09 | 0A |
        `------------------------' `------------------------'
,-------------------------------------------------------------.  ,---------------.
| 0B| 0C| 0D| 0E| 0F| 10| 11| 12| 13| 14| 15| 16| 17| 18|  19 |  | 4B| 4C| 4D| 4E|
|-------------------------------------------------------------|  |---------------|
|  1A | 1B| 1C| 1D| 1E| 1F| 20| 21| 22| 23| 24| 25| 26| 27|   |  | 4F| 50| 51| 52|
|---------------------------------------------------------'   |  |---------------|
|  28  | 29| 2A| 2B| 2C| 2D| 2E| 2F| 30| 31| 32| 33| 34|  35  |  | 53| 54| 55| 56|
|-------------------------------------------------------------|  |---------------|
|  36    | 37| 38| 39| 3A| 3B| 3C| 3D| 3E| 3F| 40| 41|   42   |  | 57| 58| 59|   |
|-------------------------------------------------------------|  |-----------| 5A|
| 43   |44 | 45  |       46              | 47  | 48| 49|  4A  |  | 5B| 5C| 5D|   |
`-------------------------------------------------------------'  `---------------'

Pinouts

NWP-5461

 -------------
 \ 1 2 3 x 5 /
  \ 6 7 8 9 /
   ---------
1 VCC
2 BZ(Speaker)
3 Keyboard Data(from keyboard MCU TxD)
4 NC
5 GND
6 Keyboard Command(to keyboard MCU RxD via two schmitt triggers of Z8 74LS14)
7 Mouse Data(from Mouse Ext connector)
8 Power switch(directly to the switch via diode)
9 FG

NWP-411A

-------------
\ 1 2 3 x 5 /
 \ x 7 x 9 /
  ---------
1 VCC
2 BZ(Speaker)
3 Keyboard Data(from keyboard MCU TxD)
4 NC
5 GND
6 NC
7 Mouse Data(from Mouse Ext connector)
8 NC
9 FG

Buzzer

You can control buzzer using tone() and noTone(). BZ pin should be connected to PD0.

  • void tone(unsigned int frequency, unsigned long duration)
  • void noTone(void)

tone() sounds buzzer in frequency(in hertz) for duration(in milliseconds). When giving -1 as duration to tone() buzzer makes a sound forever until noTone() is called.

Buzzer is not used by default firmware.