diff options
| -rw-r--r-- | converter/ibm4704_usb/README.md | 33 |
1 files changed, 23 insertions, 10 deletions
diff --git a/converter/ibm4704_usb/README.md b/converter/ibm4704_usb/README.md index 1e29945d05..f38cdd164a 100644 --- a/converter/ibm4704_usb/README.md +++ b/converter/ibm4704_usb/README.md @@ -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 |