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diff --git a/keyboards/bastardkb/charybdis/3x5/keymaps/drashna/config.h b/keyboards/bastardkb/charybdis/3x5/keymaps/drashna/config.h
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+/*
+
+Copyright 2021 Quentin LEBASTARD <qlebastard@gmail.com>
+
+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
+
+#undef PRODUCT
+#define PRODUCT Charybdis Nano (Blackpill)
+
+#undef MATRIX_ROW_PINS
+#define MATRIX_ROW_PINS \
+ { B12, B13, B14, B15 }
+#undef MATRIX_COL_PINS
+#define MATRIX_COL_PINS \
+ { A15, B3, B4, B5, B6 }
+
+
+#undef MATRIX_ROW_PINS_RIGHT
+#define MATRIX_ROW_PINS_RIGHT \
+ { B12, B13, B14, B15 }
+#undef MATRIX_COL_PINS_RIGHT
+#define MATRIX_COL_PINS_RIGHT \
+ { A15, B3, B4, B5, B6 }
+
+#define USB_VBUS_PIN B10
+#define SPLIT_HAND_PIN C14 // high = left, low = right
+
+// WS2812 RGB LED strip input and number of LEDs
+#undef RGB_DI_PIN
+#define RGB_DI_PIN A1
+#undef RGB_MATRIX_MAXIMUM_BRIGHTNESS
+#define RGB_MATRIX_MAXIMUM_BRIGHTNESS 150
+#define WS2812_PWM_DRIVER PWMD2 // default: PWMD2
+#define WS2812_PWM_CHANNEL 2 // default: 2
+#define WS2812_PWM_PAL_MODE 1 // Pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 2
+#define WS2812_EXTERNAL_PULLUP
+//#define WS2812_PWM_COMPLEMENTARY_OUTPUT // Define for a complementary timer output (TIMx_CHyN); omit for a normal timer output (TIMx_CHy).
+#define WS2812_DMA_STREAM STM32_DMA1_STREAM7 // DMA Stream for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
+#define WS2812_DMA_CHANNEL 3 // DMA Channel for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
+#define WS2812_PWM_TARGET_PERIOD 800000
+
+#define DEBUG_LED_PIN C13
+
+/* Audio config */
+#define AUDIO_PIN B1
+#define AUDIO_PWM_DRIVER PWMD3
+#define AUDIO_PWM_CHANNEL 4
+#define AUDIO_PWM_PAL_MODE 2
+#define AUDIO_STATE_TIMER GPTD4
+
+/* serial.c configuration for split keyboard */
+#undef SOFT_SERIAL_PIN
+#define SERIAL_USART_FULL_DUPLEX // Enable full duplex operation mode.
+#define SERIAL_USART_TX_PIN A2
+#define SERIAL_USART_RX_PIN A3
+#define SERIAL_USART_DRIVER SD2
+#define SERIAL_USART_TX_PAL_MODE 7 // Pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 7
+#define SERIAL_USART_RX_PAL_MODE 7 // Pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 7
+#define SERIAL_USART_TIMEOUT 100 // USART driver timeout. default 100
+// #define SERIAL_USART_PIN_SWAP // swap RX and TX pins on master
+// To use the highest possible baudrate (3.75Mbit/s) uncomment the following
+// line, this can result in dropped communications so lower the speed if there
+// are many timeouts.
+// #define SERIAL_USART_SPEED (STM32_PCLK2 >> 4)
+
+#define CRC8_USE_TABLE
+#define CRC8_OPTIMIZE_SPEED
+
+/* spi config for eeprom and pmw3360 sensor */
+#define SPI_DRIVER SPID1
+#define SPI_SCK_PIN A5
+#define SPI_SCK_PAL_MODE 5
+#define SPI_MOSI_PIN A7
+#define SPI_MOSI_PAL_MODE 5
+#define SPI_MISO_PIN A6
+#define SPI_MISO_PAL_MODE 5
+
+/* eeprom config */
+#define EXTERNAL_EEPROM_SPI_SLAVE_SELECT_PIN A4
+#define EXTERNAL_EEPROM_SPI_CLOCK_DIVISOR 64
+// #define EXTERNAL_EEPROM_BYTE_COUNT 8196
+// #define EXTERNAL_EEPROM_PAGE_SIZE 32
+// #define EXTERNAL_EEPROM_ADDRESS_SIZE 2
+
+/* pmw3360 config */
+#undef PMW3360_CS_PIN
+#define PMW3360_CS_PIN B0
+#define PMW3360_SPI_MODE 3
+#define PMW3360_SPI_DIVISOR 64
+
+
+# define CHARYBDIS_MINIMUM_DEFAULT_DPI 1200
+# define CHARYBDIS_DEFAULT_DPI_CONFIG_STEP 400
+# define CHARYBDIS_MINIMUM_SNIPING_DPI 200
+# define CHARYBDIS_SNIPING_DPI_CONFIG_STEP 100