Add Adafruit qtpy ch32v203 board

boards.txt

@@ -524,6 +524,22 @@ CH32V20x_EVT.menu.pnum.CH32V203C6.build.math_lib_gcc=-lm
 CH32V20x_EVT.menu.pnum.CH32V203C6.build.IQ_math_RV32=
 CH32V20x_EVT.menu.pnum.CH32V203C6.build.ch_extra_lib=-lprintf
 
+#Adafruit QTPy CH32V203G6 Board
+CH32V20x_EVT.menu.pnum.CH32V203G6_ADAFRUIT_QTPY=Adafruit QTPy CH32V203G6
+CH32V20x_EVT.menu.pnum.CH32V203G6_ADAFRUIT_QTPY.node=NODE_V203G6_ADAFRUIT_QTPY
+CH32V20x_EVT.menu.pnum.CH32V203G6_ADAFRUIT_QTPY.upload.maximum_size=229376
+CH32V20x_EVT.menu.pnum.CH32V203G6_ADAFRUIT_QTPY.upload.maximum_data_size=10240
+CH32V20x_EVT.menu.pnum.CH32V203G6_ADAFRUIT_QTPY.build.mcu=QingKe-V4B
+CH32V20x_EVT.menu.pnum.CH32V203G6_ADAFRUIT_QTPY.build.board=CH32V203G6_ADAFRUIT_QTPY
+CH32V20x_EVT.menu.pnum.CH32V203G6_ADAFRUIT_QTPY.build.series=CH32V20x
+CH32V20x_EVT.menu.pnum.CH32V203G6_ADAFRUIT_QTPY.build.variant=CH32V20x/CH32V203G6_ADAFRUIT_QTPY
+CH32V20x_EVT.menu.pnum.CH32V203G6_ADAFRUIT_QTPY.build.chip=CH32V203
+CH32V20x_EVT.menu.pnum.CH32V203G6_ADAFRUIT_QTPY.build.march=rv32imacxw
+CH32V20x_EVT.menu.pnum.CH32V203G6_ADAFRUIT_QTPY.build.mabi=ilp32
+CH32V20x_EVT.menu.pnum.CH32V203G6_ADAFRUIT_QTPY.build.math_lib_gcc=-lm
+CH32V20x_EVT.menu.pnum.CH32V203G6_ADAFRUIT_QTPY.build.IQ_math_RV32=
+CH32V20x_EVT.menu.pnum.CH32V203G6_ADAFRUIT_QTPY.build.ch_extra_lib=-lprintf
+
 
 # USB support
 CH32V20x_EVT.menu.usb.none=None

tools/makeboards.py

@@ -80,6 +80,7 @@
             'CH32V203G6': {'name': 'CH32V203G6 EVT', 'maximum_size': 32768, 'maximum_data_size': 10240, 'mcu': 'QingKe-V4B', 'chip': 'CH32V203'},
             'CH32V203C8': {'name': 'CH32V203C8', 'maximum_size': 65536, 'maximum_data_size': 20480, 'mcu': 'QingKe-V4B', 'chip': 'CH32V203'},
             'CH32V203C6': {'name': 'CH32V203C6', 'maximum_size': 32768, 'maximum_data_size': 10240, 'mcu': 'QingKe-V4B', 'chip': 'CH32V203'},
+            'CH32V203G6_ADAFRUIT_QTPY': {'name': 'Adafruit QTPy CH32V203G6', 'maximum_size': 229376, 'maximum_data_size': 10240, 'mcu': 'QingKe-V4B', 'chip': 'CH32V203'},
         }
     },
     'CH32V30x': {

variants/CH32V20x/CH32V203G6_ADAFRUIT_QTPY/CMakeLists.txt

@@ -0,0 +1,30 @@
+# v3.21 implemented semantic changes regarding $<TARGET_OBJECTS:...>
+# See https://cmake.org/cmake/help/v3.21/command/target_link_libraries.html#linking-object-libraries-via-target-objects
+cmake_minimum_required(VERSION 3.21)
+
+add_library(variant INTERFACE)
+add_library(variant_usage INTERFACE)
+
+target_include_directories(variant_usage INTERFACE
+  .
+)
+
+
+target_link_libraries(variant_usage INTERFACE
+  base_config
+)
+
+target_link_libraries(variant INTERFACE variant_usage)
+
+
+
+add_library(variant_bin STATIC EXCLUDE_FROM_ALL
+  PeripheralPins.c
+  variant_CH32V203G6_ADAFRUIT_QTPY.cpp
+)
+target_link_libraries(variant_bin PUBLIC variant_usage)
+
+target_link_libraries(variant INTERFACE
+  variant_bin
+)
+

variants/CH32V20x/CH32V203G6_ADAFRUIT_QTPY/PeripheralPins.c

@@ -0,0 +1,215 @@
+/**
+ *******************************************************************************
+ * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+ * All rights reserved.
+ *
+ * This software component is licensed by WCH under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
+ *
+ *******************************************************************************
+ */
+
+#include "Arduino.h"
+#include "PeripheralPins.h"
+
+/* =====
+ * Notes:
+ * - The pins mentioned Px_y_ALTz are alternative possibilities which use other
+ *   HW peripheral instances. You can use them the same way as any other "normal"
+ *   pin (i.e. analogWrite(PA7_ALT1, 128);).
+ *
+ * - Commented lines are alternative possibilities which are not used per default.
+ *   If you change them, you will have to know what you do
+ * =====
+ */
+
+//*** ADC ***
+#ifdef ADC_MODULE_ENABLED
+WEAK const PinMap PinMap_ADC[] = {
+  {PA_0,      ADC1, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 0)}, // ADC1_IN0
+  {PA_0_ALT1, ADC2, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 0)}, // ADC2_IN0
+  {PA_1,      ADC1, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 1)}, // ADC1_IN1
+  {PA_1_ALT1, ADC2, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 1)}, // ADC2_IN1
+  {PA_2,      ADC1, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 2)}, // ADC1_IN2
+  {PA_2_ALT1, ADC2, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 2)}, // ADC2_IN2
+  {PA_3,      ADC1, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 3)}, // ADC1_IN3
+  {PA_3_ALT1, ADC2, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 3)}, // ADC2_IN3
+  {PA_4,      ADC1, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 4)}, // ADC1_IN4
+  {PA_4_ALT1, ADC2, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 4)}, // ADC2_IN4
+  {PA_5,      ADC1, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 5)}, // ADC1_IN5
+  {PA_5_ALT1, ADC2, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 5)}, // ADC2_IN5
+  {PA_6,      ADC1, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 6)}, // ADC1_IN6
+  {PA_6_ALT1, ADC2, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 6)}, // ADC2_IN6
+  {PA_7,      ADC1, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 7)}, // ADC1_IN7
+  {PA_7_ALT1, ADC2, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 7)}, // ADC2_IN7
+  {PB_0,      ADC1, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 8)}, // ADC1_IN8
+  {PB_0_ALT1, ADC2, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 8)}, // ADC2_IN8
+  {PB_1,      ADC1, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 9)}, // ADC1_IN9
+  {PB_1_ALT1, ADC2, CH_PIN_DATA_EXT(CH_MODE_INPUT, CH_CNF_INPUT_ANALOG, 0, AFIO_NONE, 9)}, // ADC2_IN9
+  {NC,        NP,   0}
+};
+#endif
+
+//*** No DAC ***
+
+
+
+//*** I2C ***
+#ifdef I2C_MODULE_ENABLED
+WEAK const PinMap PinMap_I2C_SDA[] = {
+  {PB_7, I2C1, CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFOD, NOPULL, AFIO_NONE)},
+  {PB_9, I2C1, CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFOD, NOPULL, AFIO_Remap_I2C1_ENABLE)},
+  {NC,   NP,   0}
+};
+#endif
+
+#ifdef I2C_MODULE_ENABLED
+WEAK const PinMap PinMap_I2C_SCL[] = {
+  {PB_6, I2C1, CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFOD, NOPULL, AFIO_NONE)},
+  {PB_8, I2C1, CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFOD, NOPULL, AFIO_Remap_I2C1_ENABLE)},
+  {NC,   NP,   0}
+};
+#endif
+
+//*** TIM ***
+#ifdef TIM_MODULE_ENABLED
+WEAK const PinMap PinMap_TIM[] = {
+  {PA_0,       TIM2, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM2_DISABLE, 1)}, // TIM2_CH1
+  {PA_1,       TIM2, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM2_DISABLE, 2)}, // TIM2_CH2
+  {PA_2,       TIM2, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM2_DISABLE, 3)}, // TIM2_CH3
+  {PA_3,       TIM2, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM2_DISABLE, 4)}, // TIM2_CH4
+
+  {PA_6,       TIM3, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM3_DISABLE, 1)}, // TIM3_CH1
+  {PA_7,       TIM3, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM3_DISABLE, 2)}, // TIM3_CH2
+  {PB_0,       TIM3, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM3_DISABLE, 3)}, // TIM3_CH3
+  {PB_1,       TIM3, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM3_DISABLE, 4)}, // TIM3_CH4
+
+  {PB_6,       TIM4, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM4_DISABLE, 1)}, // TIM4_CH1
+  {PB_7,       TIM4, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM4_DISABLE, 2)}, // TIM4_CH2
+  {PB_8,       TIM4, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM4_DISABLE, 3)}, // TIM4_CH3
+  {PB_9,       TIM4, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM4_DISABLE, 4)}, // TIM4_CH4
+
+  {PA_8,       TIM1, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM1_DISABLE, 1)}, // TIM1_CH1
+  {PA_9,       TIM1, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM1_DISABLE, 2)}, // TIM1_CH2
+  {PA_10,      TIM1, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM1_DISABLE, 3)}, // TIM1_CH3
+  {PA_11,      TIM1, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM1_DISABLE, 4)}, // TIM1_CH4
+
+  {PB_13,      TIM1, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM1_DISABLE, 1)}, // TIM1_CH1N
+  {PB_14,      TIM1, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM1_DISABLE, 2)}, // TIM1_CH2N
+  {PA_15,      TIM1, CH_PIN_DATA_EXT(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, NOPULL, AFIO_Remap_TIM1_DISABLE, 3)}, // TIM1_CH3N
+  {NC,         NP,   0}
+};
+#endif
+
+//*** UART ***
+#ifdef UART_MODULE_ENABLED
+WEAK const PinMap PinMap_UART_TX[] = {
+  {PA_9, USART1, CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, 0, AFIO_NONE)},
+  {PB_6, USART1, CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, 0, AFIO_Remap_USART1_ENABLE)},
+  {PA_2, USART2, CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, 0, AFIO_NONE)},
+  {PB_10,USART3, CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, 0, AFIO_NONE)},
+  {PC_10,USART3, CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, 0, AFIO_FullRemap_USART3_ENABLE)},
+  {PB_0, UART4,  CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, 0, AFIO_NONE)},
+  {PA_5, UART4,  CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, 0, AFIO_FullRemap_USART4_ENABLE)},
+  {NC,   NP,     0}
+};
+#endif
+
+#ifdef UART_MODULE_ENABLED
+WEAK const PinMap PinMap_UART_RX[] = {
+  {PA_10, USART1, CH_PIN_DATA(CH_MODE_INPUT, CH_CNF_INPUT_PUPD, PULLUP, AFIO_NONE)},
+  {PB_7,  USART1, CH_PIN_DATA(CH_MODE_INPUT, CH_CNF_INPUT_PUPD, PULLUP, AFIO_Remap_USART1_ENABLE)},
+  {PA_3,  USART2, CH_PIN_DATA(CH_MODE_INPUT, CH_CNF_INPUT_PUPD, PULLUP, AFIO_NONE)},
+  {PB_11, USART3, CH_PIN_DATA(CH_MODE_INPUT, CH_CNF_INPUT_PUPD, PULLUP, AFIO_NONE)},
+  {PC_11, USART3, CH_PIN_DATA(CH_MODE_INPUT, CH_CNF_INPUT_PUPD, PULLUP, AFIO_FullRemap_USART3_ENABLE)},
+  {PB_1,  UART4,  CH_PIN_DATA(CH_MODE_INPUT, CH_CNF_INPUT_PUPD, PULLUP, AFIO_NONE)},
+  {PB_5,  UART4,  CH_PIN_DATA(CH_MODE_INPUT, CH_CNF_INPUT_PUPD, PULLUP, AFIO_FullRemap_USART4_ENABLE)},
+  {NC,    NP,     0}
+};
+#endif
+
+#ifdef UART_MODULE_ENABLED
+WEAK const PinMap PinMap_UART_RTS[] = {
+  {PA_12, USART1, CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, 0, AFIO_NONE)},
+  {PA_1,  USART2, CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, 0, AFIO_NONE)},
+  {PB_14, USART3, CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, 0, AFIO_NONE)},
+  {PB_4,  UART4,  CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, 0, AFIO_NONE)},  
+  {NC,    NP,     0}
+};
+#endif
+
+#ifdef UART_MODULE_ENABLED
+WEAK const PinMap PinMap_UART_CTS[] = {
+  {PA_11, USART1, CH_PIN_DATA(CH_MODE_INPUT, CH_CNF_INPUT_PUPD, PULLUP, AFIO_NONE)},  
+  {PA_0,  USART2, CH_PIN_DATA(CH_MODE_INPUT, CH_CNF_INPUT_PUPD, PULLUP, AFIO_NONE)},
+  {PB_13, USART3, CH_PIN_DATA(CH_MODE_INPUT, CH_CNF_INPUT_PUPD, PULLUP, AFIO_NONE)},
+  {PB_3,  UART4,  CH_PIN_DATA(CH_MODE_INPUT, CH_CNF_INPUT_PUPD, PULLUP, AFIO_NONE)},    
+  {NC,    NP,     0}
+};
+#endif
+
+
+//*** SPI ***
+#ifdef SPI_MODULE_ENABLED
+WEAK const PinMap PinMap_SPI_MOSI[] = {
+  {PA_7, SPI1, CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, 0, AFIO_NONE)},
+  {NC,   NP,   0}
+};
+#endif
+
+#ifdef SPI_MODULE_ENABLED
+WEAK const PinMap PinMap_SPI_MISO[] = {
+  {PA_6, SPI1, CH_PIN_DATA(CH_MODE_INPUT, CH_CNF_INPUT_FLOAT, 0, AFIO_NONE)},
+  {NC,   NP,   0}
+};
+#endif
+
+#ifdef SPI_MODULE_ENABLED
+WEAK const PinMap PinMap_SPI_SCLK[] = {
+  {PA_5, SPI1, CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, 0, AFIO_NONE)},
+  {NC,   NP,   0}
+};
+#endif
+
+#ifdef SPI_MODULE_ENABLED
+WEAK const PinMap PinMap_SPI_SSEL[] = {
+  {PA_4,  SPI1, CH_PIN_DATA(CH_MODE_OUTPUT_50MHz, CH_CNF_OUTPUT_AFPP, 0, AFIO_NONE)},
+  {NC,    NP,   0}
+};
+#endif
+
+//*** CAN ***
+#ifdef CAN_MODULE_ENABLED
+WEAK const PinMap PinMap_CAN_RD[] = {
+  {PA_11, CAN1, CH_PIN_DATA(CH_MODE_INPUT, GPIO_NOPULL, AFIO_NONE)},
+  {PB_8,  CAN1, CH_PIN_DATA(CH_MODE_INPUT, GPIO_NOPULL, AFIO_CAN1_2)},
+  {NC,    NP,   0}
+};
+#endif
+
+#ifdef CAN_MODULE_ENABLED 
+WEAK const PinMap PinMap_CAN_TD[] = {
+  {PA_12, CAN1, CH_PIN_DATA(CH_MODE_AF_PP, GPIO_NOPULL, AFIO_NONE)},
+  {PB_9,  CAN1, CH_PIN_DATA(CH_MODE_AF_PP, GPIO_NOPULL, AFIO_CAN1_2)},
+  {NC,    NP,   0}
+};
+#endif
+
+//*** No ETHERNET ***
+
+
+
+//*** USB ***
+#ifdef USB_MODULE_ENABLED
+WEAK const PinMap PinMap_USB[] = {
+  {PA_11, USB, CH_PIN_DATA(CH_MODE_INPUT, GPIO_NOPULL, AFIO_NONE)}, // USB_DM
+  {PA_12, USB, CH_PIN_DATA(CH_MODE_INPUT, GPIO_NOPULL, AFIO_NONE)}, // USB_DP
+  {NC,    NP,  0}
+};
+#endif
+
+//*** No SD ***
+
+

variants/CH32V20x/CH32V203G6_ADAFRUIT_QTPY/PinNamesVar.h

@@ -0,0 +1,53 @@
+/* Alternate pin name */
+PA_0_ALT1  = PA_0  | ALT1,
+PA_1_ALT1  = PA_1  | ALT1,
+PA_2_ALT1  = PA_2  | ALT1,
+PA_3_ALT1  = PA_3  | ALT1,
+PA_4_ALT1  = PA_4  | ALT1,
+PA_5_ALT1  = PA_5  | ALT1,
+PA_6_ALT1  = PA_6  | ALT1,
+PA_7_ALT1  = PA_7  | ALT1,
+PA_8_ALT1  = PA_8  | ALT1,
+PA_9_ALT1  = PA_9  | ALT1,
+PA_10_ALT1 = PA_10 | ALT1,
+PA_11_ALT1 = PA_11 | ALT1,
+PA_15_ALT1 = PA_15 | ALT1,
+PB_0_ALT1  = PB_0  | ALT1,
+PB_0_ALT2  = PB_0  | ALT2,
+PB_1_ALT1  = PB_1  | ALT1,
+PB_1_ALT2  = PB_1  | ALT2,
+PB_3_ALT1  = PB_3  | ALT1,
+PB_10_ALT1 = PB_10 | ALT1,
+PB_11_ALT1 = PB_11 | ALT1,
+
+/* SYS_WKUP */
+#ifdef PWR_WAKEUP_PIN1
+  SYS_WKUP1 = PA_0,
+#endif
+#ifdef PWR_WAKEUP_PIN2
+  SYS_WKUP2 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN3
+  SYS_WKUP3 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN4
+  SYS_WKUP4 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN5
+  SYS_WKUP5 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN6
+  SYS_WKUP6 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN7
+  SYS_WKUP7 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN8
+  SYS_WKUP8 = NC,
+#endif
+
+/* USB */
+#ifdef USBCON
+  USB_DM = PA_11,
+  USB_DP = PA_12,
+#endif

variants/CH32V20x/CH32V203G6_ADAFRUIT_QTPY/variant_CH32V203G6_ADAFRUIT_QTPY.cpp

@@ -0,0 +1,56 @@
+/**
+ *******************************************************************************
+ * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+ * All rights reserved.
+ *
+ * This software component is licensed by WCH under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
+ *
+ *******************************************************************************
+ */
+
+#include "pins_arduino.h"
+#include "hw_config.h"
+
+// Digital PinName array
+const PinName digitalPin[] = {
+  PB_1,  // D0/A0
+  PB_0,  // D1/A1
+  PA_1,  // D2/A2
+  PA_0,  // D3/A3
+  PA_2,  // D4/TX
+  PA_3,  // D5/RX
+  PA_4,  // D6/Neopixel
+  PA_5,  // D7/SCK
+  PA_6,  // D8/MISO
+  PA_7,  // D9/MOSI
+  PB_6,  // D10/SCL
+  PB_7,  // D11/SDA
+  PB_8,  // D12/BOOT0 Button
+};
+
+// Analog (Ax) pin number array
+const uint32_t analogInputPin[] = {
+  0,  // A0,  PB1
+  1,  // A1,  PB0
+  2,  // A2,  PA1
+  3,  // A3,  PA0
+};
+
+extern "C" {
+
+void pre_init(void) {
+  // Enable Flash enhance read mode for full 224KB
+  FLASH->KEYR = 0x45670123; // FLASH_Unlock_Fast();
+  FLASH->KEYR = 0xCDEF89AB;
+
+  FLASH->CTLR |= (1 << 24); // Enhanced Read Mode
+
+  FLASH->CTLR |= (1 << 15); // FLASH_Lock_Fast();
+
+  hw_config_init();
+}
+
+}