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-rw-r--r--keyboards/drop/cstm65/board.h8
-rw-r--r--keyboards/drop/cstm65/config.h16
-rw-r--r--keyboards/drop/cstm65/cstm65.c79
-rw-r--r--keyboards/drop/cstm65/halconf.h7
-rw-r--r--keyboards/drop/cstm65/info.json221
-rw-r--r--keyboards/drop/cstm65/keymaps/default/keymap.c20
-rw-r--r--keyboards/drop/cstm65/keymaps/via/config.h5
-rw-r--r--keyboards/drop/cstm65/keymaps/via/keymap.c20
-rw-r--r--keyboards/drop/cstm65/keymaps/via/rules.mk1
-rw-r--r--keyboards/drop/cstm65/mcuconf.h14
-rw-r--r--keyboards/drop/cstm65/readme.md24
-rw-r--r--keyboards/drop/cstm65/rules.mk4
12 files changed, 419 insertions, 0 deletions
diff --git a/keyboards/drop/cstm65/board.h b/keyboards/drop/cstm65/board.h
new file mode 100644
index 0000000000..ed3ea4b1f7
--- /dev/null
+++ b/keyboards/drop/cstm65/board.h
@@ -0,0 +1,8 @@
+// Copyright 2023 Massdrop, Inc.
+// SPDX-License-Identifier: GPL-2.0-or-later
+#pragma once
+
+#include_next <board.h>
+
+#undef STM32_HSECLK
+#define STM32_HSECLK 16000000U
diff --git a/keyboards/drop/cstm65/config.h b/keyboards/drop/cstm65/config.h
new file mode 100644
index 0000000000..302fc1677f
--- /dev/null
+++ b/keyboards/drop/cstm65/config.h
@@ -0,0 +1,16 @@
+// Copyright 2023 Massdrop, Inc.
+// SPDX-License-Identifier: GPL-2.0-or-later
+#pragma once
+
+#define I2C1_SCL_PIN B8
+#define I2C1_SDA_PIN B9
+
+#define EXTERNAL_EEPROM_I2C_BASE_ADDRESS 0b10101000
+#define EXTERNAL_EEPROM_WP_PIN B7
+#define EEPROM_I2C_24LC256
+
+#define IS31FL3733_I2C_ADDRESS_1 IS31FL3733_I2C_ADDRESS_GND_GND
+#define IS31FL3733_I2C_ADDRESS_2 IS31FL3733_I2C_ADDRESS_VCC_VCC
+#define IS31FL3733_PWM_FREQUENCY IS31FL3733_PWM_FREQUENCY_26K7_HZ
+
+#define RGB_MATRIX_CAPS_LOCK_INDEX 30
diff --git a/keyboards/drop/cstm65/cstm65.c b/keyboards/drop/cstm65/cstm65.c
new file mode 100644
index 0000000000..ccb86f1d3e
--- /dev/null
+++ b/keyboards/drop/cstm65/cstm65.c
@@ -0,0 +1,79 @@
+// Copyright 2023 Massdrop, Inc.
+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifdef RGB_MATRIX_ENABLE
+# include "rgb_matrix.h"
+
+const is31fl3733_led_t PROGMEM g_is31fl3733_leds[RGB_MATRIX_LED_COUNT] = {
+ { 0, B_1, A_1, C_1 },
+ { 0, B_2, A_2, C_2 },
+ { 0, B_3, A_3, C_3 },
+ { 0, B_4, A_4, C_4 },
+ { 0, B_5, A_5, C_5 },
+ { 0, B_6, A_6, C_6 },
+ { 0, B_7, A_7, C_7 },
+ { 0, B_8, A_8, C_8 },
+ { 0, B_9, A_9, C_9 },
+ { 0, B_10, A_10, C_10 },
+ { 0, B_11, A_11, C_11 },
+ { 0, B_12, A_12, C_12 },
+ { 0, B_13, A_13, C_13 },
+ { 0, B_14, A_14, C_14 },
+ { 0, B_15, A_15, C_15 },
+
+ { 0, E_1, D_1, F_1 },
+ { 0, E_2, D_2, F_2 },
+ { 0, E_3, D_3, F_3 },
+ { 0, E_4, D_4, F_4 },
+ { 0, E_5, D_5, F_5 },
+ { 0, E_6, D_6, F_6 },
+ { 0, E_7, D_7, F_7 },
+ { 0, E_8, D_8, F_8 },
+ { 0, E_9, D_9, F_9 },
+ { 0, E_10, D_10, F_10 },
+ { 0, E_11, D_11, F_11 },
+ { 0, E_12, D_12, F_12 },
+ { 0, E_13, D_13, F_13 },
+ { 0, E_14, D_14, F_14 },
+ { 0, E_15, D_15, F_15 },
+
+ { 1, B_1, A_1, C_1 },
+ { 1, B_2, A_2, C_2 },
+ { 1, B_3, A_3, C_3 },
+ { 1, B_4, A_4, C_4 },
+ { 1, B_5, A_5, C_5 },
+ { 1, B_6, A_6, C_6 },
+ { 1, B_7, A_7, C_7 },
+ { 1, B_8, A_8, C_8 },
+ { 1, B_9, A_9, C_9 },
+ { 1, B_10, A_10, C_10 },
+ { 1, B_11, A_11, C_11 },
+ { 1, B_12, A_12, C_12 },
+ { 1, B_13, A_13, C_13 },
+ { 1, B_14, A_14, C_14 },
+
+ { 1, E_1, D_1, F_1 },
+ { 1, E_2, D_2, F_2 },
+ { 1, E_3, D_3, F_3 },
+ { 1, E_4, D_4, F_4 },
+ { 1, E_5, D_5, F_5 },
+ { 1, E_6, D_6, F_6 },
+ { 1, E_7, D_7, F_7 },
+ { 1, E_8, D_8, F_8 },
+ { 1, E_9, D_9, F_9 },
+ { 1, E_10, D_10, F_10 },
+ { 1, E_11, D_11, F_11 },
+ { 1, E_12, D_12, F_12 },
+ { 1, E_13, D_13, F_13 },
+ { 1, E_14, D_14, F_14 },
+
+ { 1, H_1, G_1, I_1 },
+ { 1, H_2, G_2, I_2 },
+ { 1, H_3, G_3, I_3 },
+ { 1, H_4, G_4, I_4 },
+ { 1, H_5, G_5, I_5 },
+ { 1, H_8, G_8, I_8 },
+ { 1, H_9, G_9, I_9 },
+ { 1, H_10, G_10, I_10 },
+ { 1, H_11, G_11, I_11 },
+};
+#endif
diff --git a/keyboards/drop/cstm65/halconf.h b/keyboards/drop/cstm65/halconf.h
new file mode 100644
index 0000000000..2677c2a654
--- /dev/null
+++ b/keyboards/drop/cstm65/halconf.h
@@ -0,0 +1,7 @@
+// Copyright 2023 Massdrop, Inc.
+// SPDX-License-Identifier: GPL-2.0-or-later
+#pragma once
+
+#define HAL_USE_I2C TRUE
+
+#include_next <halconf.h>
diff --git a/keyboards/drop/cstm65/info.json b/keyboards/drop/cstm65/info.json
new file mode 100644
index 0000000000..708649966e
--- /dev/null
+++ b/keyboards/drop/cstm65/info.json
@@ -0,0 +1,221 @@
+{
+ "keyboard_name": "CSTM65",
+ "manufacturer": "Drop Inc.",
+ "maintainer": "zvecr",
+ "processor": "STM32F303",
+ "bootloader": "tinyuf2",
+ "diode_direction": "COL2ROW",
+ "matrix_pins": {
+ "cols": ["C15", "C14", "C13", "C12", "C11", "C10", "C9", "C8", "C7", "C6", "C5", "C4", "C3", "C2", "C1"],
+ "rows": ["B15", "B14", "B13", "B12", "B11"]
+ },
+ "usb": {
+ "vid": "0x359B",
+ "pid": "0x0010",
+ "device_version": "1.0.0"
+ },
+ "eeprom": {
+ "driver": "i2c"
+ },
+ "features": {
+ "rgb_matrix": true,
+ "bootmagic": true,
+ "command": false,
+ "console": false,
+ "extrakey": true,
+ "mousekey": true,
+ "nkro": true
+ },
+ "community_layouts": ["65_ansi_blocker"],
+ "layouts": {
+ "LAYOUT_65_ansi_blocker": {
+ "layout": [
+ {"matrix": [0, 0], "label":"ESCAPE", "x":0, "y":0},
+ {"matrix": [0, 1], "label":"1", "x":1, "y":0},
+ {"matrix": [0, 2], "label":"2", "x":2, "y":0},
+ {"matrix": [0, 3], "label":"3", "x":3, "y":0},
+ {"matrix": [0, 4], "label":"4", "x":4, "y":0},
+ {"matrix": [0, 5], "label":"5", "x":5, "y":0},
+ {"matrix": [0, 6], "label":"6", "x":6, "y":0},
+ {"matrix": [0, 7], "label":"7", "x":7, "y":0},
+ {"matrix": [0, 8], "label":"8", "x":8, "y":0},
+ {"matrix": [0, 9], "label":"9", "x":9, "y":0},
+ {"matrix": [0, 10], "label":"0", "x":10, "y":0},
+ {"matrix": [0, 11], "label":"MINUS", "x":11, "y":0},
+ {"matrix": [0, 12], "label":"EQUALS", "x":12, "y":0},
+ {"matrix": [0, 13], "label":"BACKSPACE", "x":13, "y":0, "w":2},
+ {"matrix": [0, 14], "label":"DELETE", "x":15, "y":0},
+ {"matrix": [1, 0], "label":"TAB", "x":0, "y":1, "w":1.5},
+ {"matrix": [1, 1], "label":"Q", "x":1.5, "y":1},
+ {"matrix": [1, 2], "label":"W", "x":2.5, "y":1},
+ {"matrix": [1, 3], "label":"E", "x":3.5, "y":1},
+ {"matrix": [1, 4], "label":"R", "x":4.5, "y":1},
+ {"matrix": [1, 5], "label":"T", "x":5.5, "y":1},
+ {"matrix": [1, 6], "label":"Y", "x":6.5, "y":1},
+ {"matrix": [1, 7], "label":"U", "x":7.5, "y":1},
+ {"matrix": [1, 8], "label":"I", "x":8.5, "y":1},
+ {"matrix": [1, 9], "label":"O", "x":9.5, "y":1},
+ {"matrix": [1, 10], "label":"P", "x":10.5, "y":1},
+ {"matrix": [1, 11], "label":"LEFT BRACKET", "x":11.5, "y":1},
+ {"matrix": [1, 12], "label":"RIGHT BRACKET", "x":12.5, "y":1},
+ {"matrix": [1, 13], "label":"BACK SLASH", "x":13.5, "y":1, "w":1.5},
+ {"matrix": [1, 14], "label":"HOME", "x":15, "y":1},
+ {"matrix": [2, 0], "label":"CAPS LOCK", "x":0, "y":2, "w":1.75},
+ {"matrix": [2, 1], "label":"A", "x":1.75, "y":2},
+ {"matrix": [2, 2], "label":"S", "x":2.75, "y":2},
+ {"matrix": [2, 3], "label":"D", "x":3.75, "y":2},
+ {"matrix": [2, 4], "label":"F", "x":4.75, "y":2},
+ {"matrix": [2, 5], "label":"G", "x":5.75, "y":2},
+ {"matrix": [2, 6], "label":"H", "x":6.75, "y":2},
+ {"matrix": [2, 7], "label":"J", "x":7.75, "y":2},
+ {"matrix": [2, 8], "label":"K", "x":8.75, "y":2},
+ {"matrix": [2, 9], "label":"L", "x":9.75, "y":2},
+ {"matrix": [2, 10], "label":"SEMICOLON", "x":10.75, "y":2},
+ {"matrix": [2, 11], "label":"SINGLE TICK", "x":11.75, "y":2},
+ {"matrix": [2, 13], "label":"ENTER", "x":12.75, "y":2, "w":2.25},
+ {"matrix": [2, 14], "label":"PAGE UP", "x":15, "y":2},
+ {"matrix": [3, 0], "label":"LEFT SHIFT", "x":0, "y":3, "w":2.25},
+ {"matrix": [3, 1], "label":"Z", "x":2.25, "y":3},
+ {"matrix": [3, 2], "label":"X", "x":3.25, "y":3},
+ {"matrix": [3, 3], "label":"C", "x":4.25, "y":3},
+ {"matrix": [3, 4], "label":"V", "x":5.25, "y":3},
+ {"matrix": [3, 5], "label":"B", "x":6.25, "y":3},
+ {"matrix": [3, 6], "label":"N", "x":7.25, "y":3},
+ {"matrix": [3, 7], "label":"M", "x":8.25, "y":3},
+ {"matrix": [3, 8], "label":"COMMA", "x":9.25, "y":3},
+ {"matrix": [3, 9], "label":"PERIOD", "x":10.25, "y":3},
+ {"matrix": [3, 10], "label":"FORWARD SLASH", "x":11.25, "y":3},
+ {"matrix": [3, 12], "label":"RIGHT SHIFT", "x":12.25, "y":3, "w":1.75},
+ {"matrix": [3, 13], "label":"UP ARROW", "x":14, "y":3},
+ {"matrix": [3, 14], "label":"PAGE DOWN", "x":15, "y":3},
+ {"matrix": [4, 0], "label":"LEFT CTRL", "x":0, "y":4, "w":1.25},
+ {"matrix": [4, 1], "label":"LEFT WIN", "x":1.25, "y":4, "w":1.25},
+ {"matrix": [4, 2], "label":"LEFT ALT", "x":2.5, "y":4, "w":1.25},
+ {"matrix": [4, 6], "label":"SPACEBAR", "x":3.75, "y":4, "w":6.25},
+ {"matrix": [4, 10], "label":"RIGHT ALT", "x":10, "y":4, "w":1.25},
+ {"matrix": [4, 11], "label":"FN", "x":11.25, "y":4, "w":1.25},
+ {"matrix": [4, 12], "label":"LEFT ARROW", "x":13, "y":4},
+ {"matrix": [4, 13], "label":"DOWN ARROW", "x":14, "y":4},
+ {"matrix": [4, 14], "label":"RIGHT ARROW", "x":15, "y":4}
+ ]
+ }
+ },
+ "rgb_matrix": {
+ "driver": "is31fl3733",
+ "sleep": true,
+ "animations": {
+ "alphas_mods": true,
+ "gradient_up_down": true,
+ "gradient_left_right": true,
+ "breathing": true,
+ "band_sat": true,
+ "band_val": true,
+ "band_pinwheel_sat": true,
+ "band_pinwheel_val": true,
+ "band_spiral_sat": true,
+ "band_spiral_val": true,
+ "cycle_all": true,
+ "cycle_left_right": true,
+ "cycle_up_down": true,
+ "cycle_out_in": true,
+ "cycle_out_in_dual": true,
+ "rainbow_moving_chevron": true,
+ "cycle_pinwheel": true,
+ "cycle_spiral": true,
+ "dual_beacon": true,
+ "rainbow_beacon": true,
+ "rainbow_pinwheels": true,
+ "raindrops": true,
+ "jellybean_raindrops": true,
+ "hue_breathing": true,
+ "hue_pendulum": true,
+ "hue_wave": true,
+ "pixel_fractal": true,
+ "pixel_flow": true,
+ "pixel_rain": true,
+ "typing_heatmap": true,
+ "digital_rain": true,
+ "solid_reactive_simple": true,
+ "solid_reactive": true,
+ "solid_reactive_wide": true,
+ "solid_reactive_multiwide": true,
+ "solid_reactive_cross": true,
+ "solid_reactive_multicross": true,
+ "solid_reactive_nexus": true,
+ "solid_reactive_multinexus": true,
+ "splash": true,
+ "multisplash": true,
+ "solid_splash": true,
+ "solid_multisplash": true
+ },
+ "layout": [
+ { "flags": 4, "matrix": [0, 0], "x": 8, "y": 7 },
+ { "flags": 4, "matrix": [0, 1], "x": 22, "y": 7 },
+ { "flags": 4, "matrix": [0, 2], "x": 35, "y": 7 },
+ { "flags": 4, "matrix": [0, 3], "x": 49, "y": 7 },
+ { "flags": 4, "matrix": [0, 4], "x": 63, "y": 7 },
+ { "flags": 4, "matrix": [0, 5], "x": 77, "y": 7 },
+ { "flags": 4, "matrix": [0, 6], "x": 91, "y": 7 },
+ { "flags": 4, "matrix": [0, 7], "x": 105, "y": 7 },
+ { "flags": 4, "matrix": [0, 8], "x": 118, "y": 7 },
+ { "flags": 4, "matrix": [0, 9], "x": 132, "y": 7 },
+ { "flags": 4, "matrix": [0, 10], "x": 146, "y": 7 },
+ { "flags": 4, "matrix": [0, 11], "x": 160, "y": 7 },
+ { "flags": 4, "matrix": [0, 12], "x": 174, "y": 7 },
+ { "flags": 4, "matrix": [0, 13], "x": 195, "y": 7 },
+ { "flags": 4, "matrix": [0, 14], "x": 215, "y": 7 },
+ { "flags": 4, "matrix": [1, 0], "x": 11, "y": 19 },
+ { "flags": 4, "matrix": [1, 1], "x": 28, "y": 19 },
+ { "flags": 4, "matrix": [1, 2], "x": 42, "y": 19 },
+ { "flags": 4, "matrix": [1, 3], "x": 56, "y": 19 },
+ { "flags": 4, "matrix": [1, 4], "x": 70, "y": 19 },
+ { "flags": 4, "matrix": [1, 5], "x": 84, "y": 19 },
+ { "flags": 4, "matrix": [1, 6], "x": 98, "y": 19 },
+ { "flags": 4, "matrix": [1, 7], "x": 112, "y": 19 },
+ { "flags": 4, "matrix": [1, 8], "x": 125, "y": 19 },
+ { "flags": 4, "matrix": [1, 9], "x": 139, "y": 19 },
+ { "flags": 4, "matrix": [1, 10], "x": 153, "y": 19 },
+ { "flags": 4, "matrix": [1, 11], "x": 167, "y": 19 },
+ { "flags": 4, "matrix": [1, 12], "x": 181, "y": 19 },
+ { "flags": 4, "matrix": [1, 13], "x": 198, "y": 19 },
+ { "flags": 4, "matrix": [1, 14], "x": 215, "y": 19 },
+ { "flags": 4, "matrix": [2, 0], "x": 13, "y": 32 },
+ { "flags": 4, "matrix": [2, 1], "x": 32, "y": 32 },
+ { "flags": 4, "matrix": [2, 2], "x": 46, "y": 32 },
+ { "flags": 4, "matrix": [2, 3], "x": 60, "y": 32 },
+ { "flags": 4, "matrix": [2, 4], "x": 73, "y": 32 },
+ { "flags": 4, "matrix": [2, 5], "x": 87, "y": 32 },
+ { "flags": 4, "matrix": [2, 6], "x": 101, "y": 32 },
+ { "flags": 4, "matrix": [2, 7], "x": 115, "y": 32 },
+ { "flags": 4, "matrix": [2, 8], "x": 129, "y": 32 },
+ { "flags": 4, "matrix": [2, 9], "x": 143, "y": 32 },
+ { "flags": 4, "matrix": [2, 10], "x": 156, "y": 32 },
+ { "flags": 4, "matrix": [2, 11], "x": 170, "y": 32 },
+ { "flags": 4, "matrix": [2, 13], "x": 193, "y": 32 },
+ { "flags": 4, "matrix": [2, 14], "x": 215, "y": 32 },
+ { "flags": 4, "matrix": [3, 0], "x": 16, "y": 44 },
+ { "flags": 4, "matrix": [3, 1], "x": 39, "y": 44 },
+ { "flags": 4, "matrix": [3, 2], "x": 53, "y": 44 },
+ { "flags": 4, "matrix": [3, 3], "x": 67, "y": 44 },
+ { "flags": 4, "matrix": [3, 4], "x": 80, "y": 44 },
+ { "flags": 4, "matrix": [3, 5], "x": 94, "y": 44 },
+ { "flags": 4, "matrix": [3, 6], "x": 108, "y": 44 },
+ { "flags": 4, "matrix": [3, 7], "x": 122, "y": 44 },
+ { "flags": 4, "matrix": [3, 8], "x": 136, "y": 44 },
+ { "flags": 4, "matrix": [3, 9], "x": 150, "y": 44 },
+ { "flags": 4, "matrix": [3, 10], "x": 163, "y": 44 },
+ { "flags": 4, "matrix": [3, 12], "x": 182, "y": 44 },
+ { "flags": 4, "matrix": [3, 13], "x": 201, "y": 44 },
+ { "flags": 4, "matrix": [3, 14], "x": 215, "y": 44 },
+ { "flags": 4, "matrix": [4, 0], "x": 9, "y": 56 },
+ { "flags": 4, "matrix": [4, 1], "x": 27, "y": 56 },
+ { "flags": 4, "matrix": [4, 2], "x": 44, "y": 56 },
+ { "flags": 4, "matrix": [4, 6], "x": 96, "y": 56 },
+ { "flags": 4, "matrix": [4, 10], "x": 148, "y": 56 },
+ { "flags": 4, "matrix": [4, 11], "x": 165, "y": 56 },
+ { "flags": 4, "matrix": [4, 12], "x": 188, "y": 56 },
+ { "flags": 4, "matrix": [4, 13], "x": 201, "y": 56 },
+ { "flags": 4, "matrix": [4, 14], "x": 215, "y": 56 }
+ ]
+ }
+}
diff --git a/keyboards/drop/cstm65/keymaps/default/keymap.c b/keyboards/drop/cstm65/keymaps/default/keymap.c
new file mode 100644
index 0000000000..28d7232bcf
--- /dev/null
+++ b/keyboards/drop/cstm65/keymaps/default/keymap.c
@@ -0,0 +1,20 @@
+// Copyright 2023 Massdrop, Inc.
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ [0] = LAYOUT_65_ansi_blocker(
+ KC_ESC, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, KC_DEL,
+ KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_HOME,
+ KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT, KC_PGUP,
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP, KC_PGDN,
+ KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_RALT, MO(1), KC_LEFT, KC_DOWN, KC_RGHT
+ ),
+ [1] = LAYOUT_65_ansi_blocker(
+ KC_GRV, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, _______, KC_MUTE,
+ _______, RGB_TOG, RGB_VAI, RGB_SPI, RGB_HUI, RGB_SAI, _______, _______, _______, _______, KC_PSCR, KC_SCRL, KC_PAUS, _______, KC_END,
+ _______, RGB_MOD, RGB_VAD, RGB_SPD, RGB_HUD, RGB_SAD, _______, _______, _______, _______, _______, _______, _______, KC_VOLU,
+ _______, RGB_M_P, RGB_M_B, RGB_M_R, RGB_M_SW,QK_BOOT, NK_TOGG, _______, _______, _______, _______, _______, KC_PGUP, KC_VOLD,
+ _______, _______, _______, EE_CLR, KC_APP, _______, KC_HOME, KC_PGDN, KC_END
+ )
+};
diff --git a/keyboards/drop/cstm65/keymaps/via/config.h b/keyboards/drop/cstm65/keymaps/via/config.h
new file mode 100644
index 0000000000..616f8e3291
--- /dev/null
+++ b/keyboards/drop/cstm65/keymaps/via/config.h
@@ -0,0 +1,5 @@
+// Copyright 2023 Massdrop, Inc.
+// SPDX-License-Identifier: GPL-2.0-or-later
+#pragma once
+
+#define DYNAMIC_KEYMAP_LAYER_COUNT 8
diff --git a/keyboards/drop/cstm65/keymaps/via/keymap.c b/keyboards/drop/cstm65/keymaps/via/keymap.c
new file mode 100644
index 0000000000..28d7232bcf
--- /dev/null
+++ b/keyboards/drop/cstm65/keymaps/via/keymap.c
@@ -0,0 +1,20 @@
+// Copyright 2023 Massdrop, Inc.
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ [0] = LAYOUT_65_ansi_blocker(
+ KC_ESC, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, KC_DEL,
+ KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_HOME,
+ KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT, KC_PGUP,
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP, KC_PGDN,
+ KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_RALT, MO(1), KC_LEFT, KC_DOWN, KC_RGHT
+ ),
+ [1] = LAYOUT_65_ansi_blocker(
+ KC_GRV, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, _______, KC_MUTE,
+ _______, RGB_TOG, RGB_VAI, RGB_SPI, RGB_HUI, RGB_SAI, _______, _______, _______, _______, KC_PSCR, KC_SCRL, KC_PAUS, _______, KC_END,
+ _______, RGB_MOD, RGB_VAD, RGB_SPD, RGB_HUD, RGB_SAD, _______, _______, _______, _______, _______, _______, _______, KC_VOLU,
+ _______, RGB_M_P, RGB_M_B, RGB_M_R, RGB_M_SW,QK_BOOT, NK_TOGG, _______, _______, _______, _______, _______, KC_PGUP, KC_VOLD,
+ _______, _______, _______, EE_CLR, KC_APP, _______, KC_HOME, KC_PGDN, KC_END
+ )
+};
diff --git a/keyboards/drop/cstm65/keymaps/via/rules.mk b/keyboards/drop/cstm65/keymaps/via/rules.mk
new file mode 100644
index 0000000000..1e5b99807c
--- /dev/null
+++ b/keyboards/drop/cstm65/keymaps/via/rules.mk
@@ -0,0 +1 @@
+VIA_ENABLE = yes
diff --git a/keyboards/drop/cstm65/mcuconf.h b/keyboards/drop/cstm65/mcuconf.h
new file mode 100644
index 0000000000..819aa70bf7
--- /dev/null
+++ b/keyboards/drop/cstm65/mcuconf.h
@@ -0,0 +1,14 @@
+// Copyright 2023 Massdrop, Inc.
+// SPDX-License-Identifier: GPL-2.0-or-later
+#pragma once
+
+#include_next <mcuconf.h>
+
+#undef STM32_PLLM_VALUE
+#define STM32_PLLM_VALUE 16
+
+#undef STM32_PREDIV_VALUE
+#define STM32_PREDIV_VALUE 2
+
+#undef STM32_I2C_USE_I2C1
+#define STM32_I2C_USE_I2C1 TRUE
diff --git a/keyboards/drop/cstm65/readme.md b/keyboards/drop/cstm65/readme.md
new file mode 100644
index 0000000000..9752021236
--- /dev/null
+++ b/keyboards/drop/cstm65/readme.md
@@ -0,0 +1,24 @@
+# CSTM65
+
+The CSTM65 is a 65% keyboard with customizable switch plates and weights, as well as a magnetically attached top case.
+
+* Keyboard Maintainer: [zvecr](https://github.com/zvecr)
+* Hardware Availability: [Drop CSTM65 Mechanical Keyboard](https://drop.com/buy/drop-cstm65-mechanical-keyboard)
+
+Make example for this keyboard (after setting up your build environment):
+
+ make drop/cstm65:default
+
+Flashing example for this keyboard:
+
+ make drop/cstm65:default:flash
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+## Bootloader
+
+Enter the bootloader in 3 ways:
+
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard
+* **Physical reset button**: Quickly double tap the button located under the spacebar
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available
diff --git a/keyboards/drop/cstm65/rules.mk b/keyboards/drop/cstm65/rules.mk
new file mode 100644
index 0000000000..cd74a0c770
--- /dev/null
+++ b/keyboards/drop/cstm65/rules.mk
@@ -0,0 +1,4 @@
+UF2_DEVICE_TYPE_ID = 0x216d9c07
+UF2CONV_ARGS = --device-type $(UF2_DEVICE_TYPE_ID)
+
+SRC += lib/common.c
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 18:09:11 +0000