tmk
10 years ago
1 changed files with 23 additions and 10 deletions
+ 23
- 10
converter/ibm4704_usb/README.md
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| @@ -3,16 +3,29 @@ IBM 4704 to USB keyboard converter | |||
| This firmware converts IBM 4704 keyboard protocol to USB HID. | |||
| Connect Wires | |||
| ------------- | |||
| In case of Teensy2.0(ATMega32U4): | |||
| 1. Connect Vcc and GND. | |||
| 2. Connect Clock and Data line. | |||
| - Clock is on PD1 and Data on PD2. | |||
| 3. Optionally you need pull-up register. 1KOhm is OK? | |||
| To change pin configuration edit config.h. | |||
| 4704 Connector | |||
| -------------- | |||
| Keyboard Plug from front | |||
| DSUB-9 | |||
| ------------- | |||
| \ N 2 3 4 5 / | |||
| \ N N N N / | |||
| --------- | |||
| 2 GND | |||
| 3 VCC 5V | |||
| 4 DATA | |||
| 5 CLOCK | |||
| N No connection/No pin. | |||
| Connection | |||
| ---------- | |||
| In case of using ATMega32U4(Teensy2.0): | |||
| 1. Supply power with VCC and GND. | |||
| 2. Connect CLOCK to PD1 and DATA to PD2. You can change pin with config.h. | |||
| 3. Optionally you may need pull-up register. 1KOhm probably work. | |||
| Build Firmware | |||