/* Copyright 2017-2019 Nikolaus Wittenstein <nikolaus.wittenstein@gmail.com> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. */ #pragma once #include "quantum.h" /* Mode LEDs are active-low on Port B on the Teensy. */ #define LED_MODE_PORT PORTB #define LED_TENKEY (1<<3) #define LED_FN (1<<4) #define LED_NORMAL (1<<5) #define LED_NAS (1<<6) /* Lock LEDs are active-low on Port F on the Teensy. */ #define LED_LOCK_PORT PORTF #define LED_CAPS_LOCK (1<<4) #define LED_MOUSE_LOCK (1<<5) #define LED_NUM_LOCK (1<<6) #define LED_SCROLL_LOCK (1<<7) /* Appendix: * Table based on https://geekhack.org/index.php?topic=12212.msg2059319#msg2059319 * Some pin assignments (e.g. for PS/2 I/O) have been fixed. * * Teensy Datahand 8051 pin pin 8051 Datahand Teensy * ------ -------- ---- --- --- ---- -------- ------ * GND Mtrx send A P1.0 1 40 VCC VCC VCC * PB7 Mtrx send B P1.1 2 39 P0.0 LED RH NAS PB6 * PD0 Mtrx send C P1.2 3 38 P0.1 LED RH NORM PB5 * PD1 Mtrx send D P1.3 4 37 P0.2 LED RH FCTN PB4 * PD2 RH rcv 0 P1.4 5 36 P0.3 LED RH 10K PB3 * PD3 RH rcv 1 P1.5 6 35 P0.4 LED RH unused PB2 * PD4 LH rcv 0 P1.6 7 34 P0.5 LED RH unused PE1 * PD5 LH rcv 1 P1.7 8 33 P0.6 LED RH unused PE0 * PD6 Reset button RST 9 32 P0.7 ? PE7 * PD7 ? P3.0 10 31 VPP - PE6 * PE0 ? P3.1 11 30 ALE - GND * PE1 kbd data P3.2 12 29 PSEN - AREF * PC0 ? P3.3 13 28 P2.7 ? PF0 * PC1 kbd clk P3.4 14 27 P2.6 ? PF1 * PC2 ? P3.5 15 26 P2.5 ? PF2 * PC3 RAM P3.6 16 25 P2.4 ? PF3 * PC4 RAM P3.7 17 24 P2.3 LED D15 LH (CAPLK) PF4 * PC5 XTAL2 XTAL2 18 23 P2.2 LED D13 LH (MSELK) PF5 * PC6 XTAL1 XTAL1 19 22 P2.1 LED D6 LH (NUMLK) PF6 * PC7 GND GND 20 21 P2.0 LED D14 LH (SCRLK) PF7 * * JP3 Pinout * 2 - keyboard data * 3 - keyboard clock * * In order to get the Teensy to work, we need to move pin 1 to a different pin. This is * because on the Teensy pin 1 is ground, but we need to write to pin 1 in order to read * the keyboard matrix. An ideal pin to move it to is VPP (pin 31), because this pin tells * the 8051 whether it should read from external or internal memory. The Teensy doesn't * care about that. * * The easiest way to reassign the pin is to use standoffs. You can check out this thread: * https://geekhack.org/index.php?topic=12212.msg235382#msg235382 for a picture of what * this looks like. Note that in the picture the pin has been reassigned to pin 12. We * don't want to do that because we're going to use that pin to send data over PS/2. * * We could if we wanted also reassign the PS/2 pins to Teensy hardware UART pins, but * that's more work. Instead we'll just bit-bang PS/2 because it's an old, slow protocol * (and because there's already a bit-banged PS/2 host implementation in QMK - we just * need to add the device side). * * So overall, we want the following inputs and outputs: * Outputs: * Matrix: * PB7 * PD0 * PD1 * PE6 (moved from pin1, GND) * LEDs: * PB3-6 * PF4-7 * Inputs: * Matrix: * PD2-5 * I/Os (start up as inputs): * PS/2: * PC1 * PE1 */