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BIN
Example_Keyboards/Zenith Supersport/Zenith Supersport SX.pdf
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Example_Keyboards/Zenith Supersport/Zenith Supersport SX.pdf
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Example_Keyboards/Zenith Supersport/Zenith_Supersport_RevC.ino
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Example_Keyboards/Zenith Supersport/Zenith_Supersport_RevC.ino
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/* Copyright 2020 Frank Adams
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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// This software makes a Zenith Supersport SX keyboard into a USB keyboard
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//
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// Revision History
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// Initial Release July 7, 2020
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// Rev A July 11, 2020 - Disabled Num and Pad Lock matrix for debug
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// Rev B July 12, 2020 - Fixed normal matrix first row but left num/pad lock disabled
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// Rev C July 12, 2020 - Enabled num/pad lock
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//
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#define MODIFIERKEY_FN 0x8f // give Fn key a fake HID code
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#define KEY_PAD_LOCK 0x8e // give Pad Lock key a fake HID code
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#define CAPS_LED 17 // Teensy I/O's connected to keyboard LEDs thru resistors
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#define NUM_LED 5
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#define SCRL_LED 16
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#define PAD_LED 21
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#define HEARTBEAT_LED 13 // LED ON Teensy set to blink
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//
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const byte rows_max = 10; // sets the number of rows in the keyboard matrix
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const byte cols_max = 8; // sets the number of columns in the keyboard matrix
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//
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// Load the normal key matrix with the Teensyduino key names
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// described at www.pjrc.com/teensy/td_keyboard.html
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// A zero indicates no normal key at that location.
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int normal[rows_max][cols_max] = {
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{KEY_BACKSLASH,KEY_BACKSPACE,KEY_DELETE,KEY_INSERT,KEY_PAUSE,KEY_NUM_LOCK,KEY_F10,KEY_F9},
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{KEY_ENTER,KEY_PRINTSCREEN,KEY_EQUAL,KEY_MINUS,KEY_0,KEY_9,KEY_8,KEY_F8},
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{KEY_RIGHT_BRACE,KEY_LEFT_BRACE,KEY_P,KEY_O,KEY_I,KEY_U,KEY_7,KEY_F7},
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{KEY_QUOTE,KEY_SEMICOLON,KEY_L,KEY_K,KEY_J,KEY_Y,KEY_6,KEY_F6},
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{KEY_SLASH,KEY_PERIOD,KEY_COMMA,KEY_M,KEY_H,KEY_T,KEY_5,KEY_F5},
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{0,0,0,KEY_N,KEY_G,KEY_R,KEY_4,KEY_F4},
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{KEY_RIGHT,KEY_LEFT,KEY_UP,KEY_B,KEY_F,KEY_E,KEY_3,KEY_F3},
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{KEY_DOWN,0,KEY_SPACE,KEY_V,KEY_D,KEY_W,KEY_2,KEY_F2},
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{0,KEY_C,KEY_X,KEY_S,KEY_A,KEY_Q,KEY_1,KEY_F1},
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{0,KEY_CAPS_LOCK,KEY_Z,0,0,KEY_TAB,KEY_TILDE,KEY_ESC}
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};
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// Load the numlock key matrix with key names at the correct row-column location.
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// This matrix is the same as the normal matrix except for the number pad keys
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// A zero indicates no numlock key at that location.
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int numlock[rows_max][cols_max] = {
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{KEY_BACKSLASH,KEY_BACKSPACE,KEY_DELETE,KEY_INSERT,KEY_PAUSE,KEY_NUM_LOCK,KEY_F10,KEY_F9},
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{KEYPAD_ENTER,KEY_PRINTSCREEN,KEY_EQUAL,KEY_MINUS,KEYPAD_MINUS,KEYPAD_9,KEYPAD_8,KEY_F8},
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{KEY_RIGHT_BRACE,KEY_LEFT_BRACE,KEYPAD_PLUS,KEYPAD_6,KEYPAD_5,KEYPAD_4,KEYPAD_7,KEY_F7},
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{KEY_QUOTE,KEYPAD_ASTERIX,KEYPAD_3,KEYPAD_2,KEYPAD_1,KEY_Y,KEY_6,KEY_F6},
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{KEYPAD_SLASH,KEYPAD_PERIOD,KEY_COMMA,KEYPAD_0,KEY_H,KEY_T,KEY_5,KEY_F5},
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{0,0,0,KEY_N,KEY_G,KEY_R,KEY_4,KEY_F4},
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{KEY_RIGHT,KEY_LEFT,KEY_UP,KEY_B,KEY_F,KEY_E,KEY_3,KEY_F3},
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{KEY_DOWN,0,KEY_SPACE,KEY_V,KEY_D,KEY_W,KEY_2,KEY_F2},
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{0,KEY_C,KEY_X,KEY_S,KEY_A,KEY_Q,KEY_1,KEY_F1},
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{0,KEY_CAPS_LOCK,KEY_Z,0,0,KEY_TAB,KEY_TILDE,KEY_ESC}
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};
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// Load the padlock key matrix with key names at the correct row-column location.
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// This matrix is the same as the normal matrix except for the alternate number pad keys
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// A zero indicates no numlock key at that location.
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int padlock[rows_max][cols_max] = {
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{KEY_BACKSLASH,KEY_BACKSPACE,KEY_DELETE,KEY_INSERT,KEY_PAUSE,KEY_NUM_LOCK,KEY_F10,KEY_F9},
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{KEYPAD_ENTER,KEY_PRINTSCREEN,KEY_EQUAL,KEY_MINUS,KEYPAD_MINUS,KEY_PAGE_UP,KEY_UP,KEY_F8},
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{KEY_RIGHT_BRACE,KEY_LEFT_BRACE,KEYPAD_PLUS,KEY_RIGHT,0,KEY_LEFT,KEY_HOME,KEY_F7},
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{KEY_QUOTE,KEYPAD_ASTERIX,KEY_PAGE_DOWN,KEY_DOWN,KEY_END,KEY_Y,KEY_6,KEY_F6},
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{KEYPAD_SLASH,KEY_DELETE,0,KEY_INSERT,KEY_H,KEY_T,KEY_5,KEY_F5},
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{0,0,0,KEY_N,KEY_G,KEY_R,KEY_4,KEY_F4},
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{KEY_RIGHT,KEY_LEFT,KEY_UP,KEY_B,KEY_F,KEY_E,KEY_3,KEY_F3},
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{KEY_DOWN,0,KEY_SPACE,KEY_V,KEY_D,KEY_W,KEY_2,KEY_F2},
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{0,KEY_C,KEY_X,KEY_S,KEY_A,KEY_Q,KEY_1,KEY_F1},
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{0,KEY_CAPS_LOCK,KEY_Z,0,0,KEY_TAB,KEY_TILDE,KEY_ESC}
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};
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// Load the modifier key matrix with key names at the correct row-column location.
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// A zero indicates no modifier key at that location.
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int modifier[rows_max][cols_max] = {
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{0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0},
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{MODIFIERKEY_RIGHT_SHIFT,MODIFIERKEY_RIGHT_CTRL,MODIFIERKEY_RIGHT_ALT,0,0,0,0,0},
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{0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0},
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{MODIFIERKEY_LEFT_ALT,0,0,0,0,0,0,0},
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{MODIFIERKEY_FN,0,0,MODIFIERKEY_LEFT_SHIFT,MODIFIERKEY_LEFT_CTRL,0,0,0}
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};
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// Load the media key matrix with Fn key names at the correct row-column location.
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// A zero indicates no media key at that location.
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int media[rows_max][cols_max] = {
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{0,KEY_SCROLL_LOCK,0,0,0,KEY_PAD_LOCK,0,0},
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{0,KEY_SYSTEM_WAKE_UP,0,0,0,0,0,0},
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{0,KEY_HOME,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0},
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{KEY_END,0,KEY_PAGE_UP,0,0,0,0,0},
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{KEY_PAGE_DOWN,0,0,0,0,0,0,KEY_F12},
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{0,0,0,0,0,0,0,KEY_F11},
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{0,0,0,0,0,0,0,0}
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};
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// Initialize the old_key matrix with one's (nothing pressed).
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// 1 = key not pressed, 0 = key is pressed
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boolean old_key[rows_max][cols_max] = {
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{1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1}
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};
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//
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// Assign the Teensy I/O row numbers
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int Row_IO[rows_max] = {6,19,20,4,25,3,2,1,22,0};
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//
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// Assign the column I/O numbers
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int Col_IO[cols_max] = {12,11,10,15,9,8,7,18};
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//
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// declare keyboard variables
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boolean slots_full = LOW; // Goes high when slots 1 thru 6 contain normal keys
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// slot 1 thru slot 6 hold the normal key values to be sent over USB.
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int slot1 = 0; //value of 0 means the slot is empty and can be used.
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int slot2 = 0;
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int slot3 = 0;
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int slot4 = 0;
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int slot5 = 0;
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int slot6 = 0;
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//
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int mod_shift_l = 0; // These variables are sent over USB as modifier keys.
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int mod_shift_r = 0; // Each is either set to 0 or MODIFIER_ ...
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int mod_ctrl_l = 0;
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int mod_ctrl_r = 0;
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int mod_alt_l = 0;
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int mod_alt_r = 0;
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int mod_gui = 0;
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//
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// Function to load the key name into the first available slot
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void load_slot(int key) {
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if (!slot1) {
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slot1 = key;
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}
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else if (!slot2) {
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slot2 = key;
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}
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else if (!slot3) {
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slot3 = key;
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}
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else if (!slot4) {
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slot4 = key;
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}
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else if (!slot5) {
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slot5 = key;
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}
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else if (!slot6) {
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slot6 = key;
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}
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if (!slot1 || !slot2 || !slot3 || !slot4 || !slot5 || !slot6) {
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slots_full = LOW; // slots are not full
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}
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else {
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slots_full = HIGH; // slots are full
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}
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}
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//
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// Function to clear the slot that contains the key name
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void clear_slot(int key) {
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if (slot1 == key) {
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slot1 = 0;
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}
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else if (slot2 == key) {
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slot2 = 0;
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}
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else if (slot3 == key) {
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slot3 = 0;
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}
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else if (slot4 == key) {
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slot4 = 0;
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}
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else if (slot5 == key) {
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slot5 = 0;
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}
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else if (slot6 == key) {
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slot6 = 0;
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}
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if (!slot1 || !slot2 || !slot3 || !slot4 || !slot5 || !slot6) {
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slots_full = LOW; // slots are not full
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}
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else {
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slots_full = HIGH; // slots are full
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}
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}
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//
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// Function to load the modifier key name into the appropriate mod variable
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void load_mod(int m_key) {
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if (m_key == MODIFIERKEY_LEFT_SHIFT) {
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mod_shift_l = m_key;
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}
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else if (m_key == MODIFIERKEY_RIGHT_SHIFT) {
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mod_shift_r = m_key;
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}
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else if (m_key == MODIFIERKEY_LEFT_CTRL) {
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mod_ctrl_l = m_key;
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}
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else if (m_key == MODIFIERKEY_RIGHT_CTRL) {
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mod_ctrl_r = m_key;
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}
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else if (m_key == MODIFIERKEY_LEFT_ALT) {
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mod_alt_l = m_key;
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}
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else if (m_key == MODIFIERKEY_RIGHT_ALT) {
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mod_alt_r = m_key;
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}
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else if (m_key == MODIFIERKEY_GUI) {
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mod_gui = m_key;
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}
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}
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//
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// Function to load 0 into the appropriate mod variable
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void clear_mod(int m_key) {
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if (m_key == MODIFIERKEY_LEFT_SHIFT) {
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mod_shift_l = 0;
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}
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else if (m_key == MODIFIERKEY_RIGHT_SHIFT) {
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mod_shift_r = 0;
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}
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else if (m_key == MODIFIERKEY_LEFT_CTRL) {
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mod_ctrl_l = 0;
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}
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else if (m_key == MODIFIERKEY_RIGHT_CTRL) {
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mod_ctrl_r = 0;
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}
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else if (m_key == MODIFIERKEY_LEFT_ALT) {
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mod_alt_l = 0;
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}
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else if (m_key == MODIFIERKEY_RIGHT_ALT) {
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mod_alt_r = 0;
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}
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else if (m_key == MODIFIERKEY_GUI) {
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mod_gui = 0;
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}
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}
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//
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// Function to send the modifier keys over usb
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void send_mod() {
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Keyboard.set_modifier(mod_shift_l | mod_shift_r | mod_ctrl_l | mod_ctrl_r | mod_alt_l | mod_alt_r | mod_gui);
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Keyboard.send_now();
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}
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//
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// Function to send the normal keys in the 6 slots over usb
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void send_normals() {
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Keyboard.set_key1(slot1);
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Keyboard.set_key2(slot2);
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Keyboard.set_key3(slot3);
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Keyboard.set_key4(slot4);
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Keyboard.set_key5(slot5);
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Keyboard.set_key6(slot6);
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Keyboard.send_now();
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}
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//
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// Function to set a pin to high impedance (acts like open drain output)
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void go_z(int pin)
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{
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pinMode(pin, INPUT);
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digitalWrite(pin, HIGH);
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}
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//
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// Function to set a pin as an input with a pullup
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void go_pu(int pin)
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{
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pinMode(pin, INPUT_PULLUP);
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digitalWrite(pin, HIGH);
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}
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//
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// Function to send a pin to a logic low
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void go_0(int pin)
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{
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pinMode(pin, OUTPUT);
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digitalWrite(pin, LOW);
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}
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//
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// Function to send a pin to a logic high
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void go_1(int pin)
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{
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pinMode(pin, OUTPUT);
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digitalWrite(pin, HIGH);
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}
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//
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//----------------------------------Setup-------------------------------------------
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void setup() {
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for (int a = 0; a < cols_max; a++) { // loop thru all column pins
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go_pu(Col_IO[a]); // set each column pin as an input with a pullup
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}
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//
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for (int b = 0; b < rows_max; b++) { // loop thru all row pins
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go_z(Row_IO[b]); // set each row pin as a floating output
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}
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//
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pinMode(HEARTBEAT_LED, OUTPUT); // drive the LED on the Teensy
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}
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//
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boolean pad_lock = HIGH; // Initialize the pad lock to HIGH = "not pressed"
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boolean Fn_pressed = HIGH; // Initialize Fn key to HIGH = "not pressed"
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extern volatile uint8_t keyboard_leds; // 8 bits sent from host to Teensy that give keyboard LED status.
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char blink_count = 0; // heartbeat loop counter
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boolean blinky = LOW; // heartbeat LED state
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//
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//---------------------------------Main Loop---------------------------------------------
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//
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void loop() {
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||||||
|
// Scan keyboard matrix with an outer loop that drives each row low and an inner loop that reads every column (with pull ups).
|
||||||
|
// The routine looks at each key's present state (by reading the column input pin) and also the previous state from the last scan
|
||||||
|
// that was 30msec ago. The status of a key that was just pressed or just released is sent over USB and the state is saved in the old_key matrix.
|
||||||
|
// The keyboard keys will read as logic low if they are pressed (negative logic).
|
||||||
|
// The old_key matrix also uses negative logic (low=pressed).
|
||||||
|
//
|
||||||
|
for (int x = 0; x < rows_max; x++) { // loop thru the rows
|
||||||
|
go_0(Row_IO[x]); // Activate Row (send it low)
|
||||||
|
delayMicroseconds(10); // give the row time to go low and settle out
|
||||||
|
for (int y = 0; y < cols_max; y++) { // loop thru the columns
|
||||||
|
// **********Modifier keys including the Fn special case
|
||||||
|
if (modifier[x][y] != 0) { // check if modifier key exists at this location in the array (a non-zero value)
|
||||||
|
if (!digitalRead(Col_IO[y]) && (old_key[x][y])) { // Read column to see if key is low (pressed) and was previously not pressed
|
||||||
|
if (modifier[x][y] != MODIFIERKEY_FN) { // Exclude Fn modifier key
|
||||||
|
load_mod(modifier[x][y]); // function reads which modifier key is pressed and loads it into the appropriate mod_... variable
|
||||||
|
send_mod(); // function sends the state of all modifier keys over usb including the one that just got pressed
|
||||||
|
old_key[x][y] = LOW; // Save state of key as "pressed"
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
Fn_pressed = LOW; // Fn status variable is active low
|
||||||
|
old_key[x][y] = LOW; // old_key state is "pressed" (active low)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else if (digitalRead(Col_IO[y]) && (!old_key[x][y])) { //check if key is not pressed and was previously pressed
|
||||||
|
if (modifier[x][y] != MODIFIERKEY_FN) { // Exclude Fn modifier key
|
||||||
|
clear_mod(modifier[x][y]); // function reads which modifier key was released and loads 0 into the appropriate mod_... variable
|
||||||
|
send_mod(); // function sends all mod's over usb including the one that just released
|
||||||
|
old_key[x][y] = HIGH; // Save state of key as "not pressed"
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
Fn_pressed = HIGH; // Fn is no longer active
|
||||||
|
old_key[x][y] = HIGH; // old_key state is "not pressed"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// ***********end of modifier section
|
||||||
|
//
|
||||||
|
// ***********Normal keys, num lock keys, pad lock keys, and media keys in this section
|
||||||
|
else if ((normal[x][y] != 0) || (media[x][y] != 0)) { // check if normal or media key exists at this location in the array
|
||||||
|
if (!digitalRead(Col_IO[y]) && (old_key[x][y]) && (!slots_full)) { // check if key pressed and not previously pressed and slots not full
|
||||||
|
old_key[x][y] = LOW; // Save state of key as "pressed"
|
||||||
|
if (Fn_pressed) { // Fn_pressed is active low so it is not pressed and normal key needs to be sent
|
||||||
|
if (keyboard_leds & 1) { // test if Num Lock is turned on
|
||||||
|
load_slot(numlock[x][y]); //update first available slot with key name from numlock matrix
|
||||||
|
send_normals(); // send all slots over USB including the key that just got pressed
|
||||||
|
}
|
||||||
|
else if (!pad_lock) { // test if Pad Lock is turned on (Note that Num Lock takes precedence over Pad Lock)
|
||||||
|
load_slot(padlock[x][y]); //update first available slot with key name from padlock matrix
|
||||||
|
send_normals(); // send all slots over USB including the key that just got pressed
|
||||||
|
}
|
||||||
|
else { // Num Lock and Pad Lock are not turned on so send normal key
|
||||||
|
load_slot(normal[x][y]); //update first available slot with key name from normal matrix
|
||||||
|
send_normals(); // send all slots over USB including the key that just got pressed
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else if (media[x][y] != 0) { // Fn is pressed so send media if a key exists in the matrix
|
||||||
|
if (media[x][y] != KEY_PAD_LOCK) { // if it's not the pad lock key, send it over USB
|
||||||
|
Keyboard.press(media[x][y]); // media key is sent using keyboard press function per PJRC
|
||||||
|
delay(5); // delay 5 milliseconds before releasing to make sure it gets sent over USB
|
||||||
|
Keyboard.release(media[x][y]); // send media key release
|
||||||
|
}
|
||||||
|
else { // pad lock key is pushed
|
||||||
|
pad_lock = !pad_lock; // toggle the pad_lock state
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else if (digitalRead(Col_IO[y]) && (!old_key[x][y])) { //check if key is not pressed, but was previously pressed
|
||||||
|
old_key[x][y] = HIGH; // Save state of key as "not pressed"
|
||||||
|
if (Fn_pressed) { // Fn is not pressed
|
||||||
|
if (keyboard_leds & 1) { // test if Num Lock is turned on
|
||||||
|
clear_slot(numlock[x][y]); //clear slot with key name from numlock matrix
|
||||||
|
send_normals(); // send all slots over USB including the key that just got released
|
||||||
|
}
|
||||||
|
else if (!pad_lock) { // test if Pad Lock is turned on
|
||||||
|
clear_slot(padlock[x][y]); //clear slot with key name from padlock matrix
|
||||||
|
send_normals(); // send all slots over USB including the key that just got released
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
clear_slot(normal[x][y]); //clear slot with key name from normal matrix
|
||||||
|
send_normals(); // send all slots over USB including the key that just got released
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// **************end of normal, num lock, and media key section
|
||||||
|
//
|
||||||
|
}
|
||||||
|
go_z(Row_IO[x]); // De-activate Row (send it to hi-z)
|
||||||
|
}
|
||||||
|
//
|
||||||
|
// **********keyboard scan complete*******************************
|
||||||
|
//
|
||||||
|
// Control the 3 keyboard LEDs
|
||||||
|
//
|
||||||
|
if (keyboard_leds & 1<<1) { // mask off all bits but D1 and test if set
|
||||||
|
go_0(CAPS_LED); // turn on the LED
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
go_1(CAPS_LED); // turn off the LED
|
||||||
|
}
|
||||||
|
//
|
||||||
|
if (keyboard_leds & 1) { // mask off all bits but D0 and test if set
|
||||||
|
go_0(NUM_LED); // turn on the Num Lock LED
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
go_1(NUM_LED); // turn off the Num Lock LED
|
||||||
|
}
|
||||||
|
//
|
||||||
|
if (keyboard_leds & 1<<2) { // mask off all bits but D2 and test if set
|
||||||
|
go_0(SCRL_LED); // turn on the Scroll Lock LED
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
go_1(SCRL_LED); // turn off the Scroll Lock LED
|
||||||
|
}
|
||||||
|
//
|
||||||
|
if (!pad_lock) { // check if pad_lock variable is Low (active state)
|
||||||
|
go_0(PAD_LED); // turn on the Pad Lock LED
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
go_1(PAD_LED); // turn off the Pad Lock LED
|
||||||
|
}
|
||||||
|
//
|
||||||
|
// Blink the LED on the Teensy to show a heartbeat
|
||||||
|
//
|
||||||
|
if (blink_count >= 0x17) {
|
||||||
|
digitalWrite(HEARTBEAT_LED, blinky);
|
||||||
|
blinky = !blinky;
|
||||||
|
blink_count = 0;
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
blink_count = blink_count + 1;
|
||||||
|
}
|
||||||
|
//
|
||||||
|
delay(24); // The overall keyboard/trackpoint scanning rate is about 30ms
|
||||||
|
}
|
||||||
Loading…
Reference in a new issue