From bafb746485aab5756a5b4877ec5bbe637f72f4ba Mon Sep 17 00:00:00 2001 From: Ethan Apodaca Date: Wed, 1 Jun 2016 08:34:14 -0700 Subject: [PATCH 1/1] Update XT converter readme. - Add mac os garbage to git ignore. --- .gitignore | 1 + converter/xt_usb/README.md | 54 +++----------------------------------- 2 files changed, 4 insertions(+), 51 deletions(-) diff --git a/.gitignore b/.gitignore index f3f46872..0d87fe42 100644 --- a/.gitignore +++ b/.gitignore @@ -11,3 +11,4 @@ tags *~ build/ *.bak +.DS_Store diff --git a/converter/xt_usb/README.md b/converter/xt_usb/README.md index 74464e26..b9641a03 100644 --- a/converter/xt_usb/README.md +++ b/converter/xt_usb/README.md @@ -1,6 +1,6 @@ -PS/2 to USB keyboard converter +XT to USB keyboard converter ============================== -This firmware converts PS/2 keyboard protocol to USB.(It supports Scan Code Set 2.) +This firmware converts XT keyboard protocol to USB.(It supports Scan Code Set 1.) Connect Wires @@ -10,8 +10,6 @@ In case of Teensy2.0(ATMega32U4): 1. Connect **Vcc** and **GND**. 2. Connect **Clock** and **Data** line. - **Interrupt**: **Clock** is on `PD1` and **Data** on `PD0`.(Recommended. Soarer's converter compatible) - - **Busywait**: **Clock** is on `PD1` and **Data** on `PD0`. - - **USART**: **Clock** is on `PD5` and **Data** on `PD2`. 3. Optionally you need pull-up resistor. 1K-10K Ohm is OK. To change pin configuration edit **config.h** and **Makefile**. @@ -29,56 +27,10 @@ To select keymap: $ make clean $ make KEYMAP=[plain|jis|spacefn|...] -After that you will find HEX file `ps2_usb_lufa.hex` in current directory. - - -- For **TMK converter Rev.1** use `make -f Makefile.tmk_rev1` instead of `make` and HEX file is `ps2_usb_tmk_rev1.hex`. - -- For **TMK converter Rev.2** use `make -f Makefile.tmk_rev2` instead of `make` and HEX file is `ps2_usb_tmk_rev2.hex`. +After that you will find HEX file `xt_usb_lufa.hex` in current directory. Keymap ------ Several version of keymap are available in advance but you are recommended to define your favorite layout yourself. To define your own keymap create file named `keymap_.c` and see keymap document(you can find in README.md of top directory) and existent keymap files. - -PS/2 signal handling implementations ------------------------------------- -Following three methods can be used to implement PS/2 signal handling. - -### Simple and stupid busy-wait(ps2_busywait.c) - This is expected to implemented with portable C code for reference. -### Interrupt driven(ps2_interrupt.c) - Uses pin interrupt to detect falling edge of clock line. -### USART hardware module(ps2_usart.c) - Uses AVR USART engine to receive PS/2 signal. - -To select method edit Makefile. - - -V-USB Support -------------- -With V-USB you can use this converter on ATmega(168/328) but it doesn't support NKRO at this time. - -Circuit: - - +---+ +---------------+ - USB GND | | ATmega168 | - === C3 | | - 5V <-------+--------+---|Vcc,AVCC | PS/2 - R1 | | ==== - D- <----+--+-----R2-----|INT1 RXD|------->DATA - D+ <----|---+----R3-----|INT0 XCK|------->CLOCK - Z1 Z2 | | ->5V - GND<----+---+--+--+-----|GND | ->GND - | | | | - | C2-+--|XTAL1 | - | X1 | | - +--C3-+--|XTAL2 | - +---------------+ - R1: 1.5K Ohm - R2,R3: 68 Ohm - Z1,Z2: Zenner 3.6V - C1,C2: 22pF - C3: 0.1uF - X1: Crystal 20MHz(16MHz/12MHz) -- 2.39.3