Meridian LED update (#15329)

* Meridian first update

* Update README, adjust timing settings

* Update README

keyboards/primekb/meridian/ws2812/config.h

@@ -0,0 +1,48 @@
+/*
+Copyright 2020 Holten Campbell
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0x5052
+#define PRODUCT_ID      0x004D
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Prime Keyboards
+#define PRODUCT         Meridian
+
+/* key matrix size */
+#define MATRIX_ROWS 5
+#define MATRIX_COLS 14
+
+#define MATRIX_COL_PINS { B11, B10, B2, B1, B0, A7, B9, B8, B7, B6, B5, B4, B3, A15 }
+#define MATRIX_ROW_PINS { A6, A5, A4, A3, A2 }
+#define DIODE_DIRECTION COL2ROW
+
+#define RGB_DI_PIN B15
+#define RGBLED_NUM 3
+#define WS2812_SPI SPID2
+#define WS2812_SPI_MOSI_PAL_MODE 0
+#define WS2812_SPI_SCK_PAL_MODE 0
+#define WS2812_SPI_SCK_PIN B13
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE    5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE

keyboards/primekb/meridian/ws2812/rules.mk

@@ -0,0 +1 @@
+WS2812_DRIVER = spi