stm32duino · fpistm · Oct 2, 2026 · Oct 1, 2026 · Oct 1, 2026 · Oct 1, 2026
diff --git a/CI/build/conf/cores_config.json b/CI/build/conf/cores_config.json
@@ -48,6 +48,9 @@
             "GENERIC_C031C4UX",
             "GENERIC_C031C6TX",
             "GENERIC_C031F4PX",
+            "GENERIC_C031K4TX",
+            "GENERIC_C031K4UX",
+            "GENERIC_C031K6TX",
             "GENERIC_C051C6TX",
             "GENERIC_C051C6UX",
             "GENERIC_C051C8TX",

diff --git a/CI/build/conf/cores_config_ci.json b/CI/build/conf/cores_config_ci.json
@@ -48,6 +48,9 @@
             "GENERIC_C031C4UX",
             "GENERIC_C031C6TX",
             "GENERIC_C031F4PX",
+            "GENERIC_C031K4TX",
+            "GENERIC_C031K4UX",
+            "GENERIC_C031K6TX",
             "GENERIC_C051C6TX",
             "GENERIC_C051C6UX",
             "GENERIC_C051C8TX",

diff --git a/README.md b/README.md
@@ -238,6 +238,7 @@ User can add a STM32 based board following this [wiki](https://github.com/stm32d
 | :green_heart: | STM32C011J4<br>STM32C011J6 | Generic Board | *2.8.0* |  |
 | :green_heart: | STM32C031C4<br>STM32C031C6 | Generic Board | *2.5.0* |  |
 | :green_heart: | STM32C031F4<br>STM32C031F6 | Generic Board | *2.6.0* |  |
+| :yellow_heart: | STM32C031K4<br>STM32C031K6 | Generic Board | **3.0.1** |  |
 | :green_heart: | STM32C051C6<br>STM32C051C8 | Generic Board | *2.12.0* |  |
 | :green_heart: | STM32C071G8<br>STM32C071GB | Generic Board | *2.11.0* |  |
 | :green_heart: | STM32C071R8<br>STM32C071RB | Generic Board | *2.9.0* | |

diff --git a/boards.txt b/boards.txt
@@ -2028,6 +2028,42 @@ GenC0.menu.pnum.GENERIC_C031F6PX.build.product_line=STM32C031xx
 GenC0.menu.pnum.GENERIC_C031F6PX.build.variant=STM32C0xx/C031F(4-6)P
 GenC0.menu.pnum.GENERIC_C031F6PX.debug.svd_file={runtime.tools.STM32_SVD.path}/svd/STM32C0xx/STM32C031.svd
 
+# Generic C031K4Tx
+GenC0.menu.pnum.GENERIC_C031K4TX=Generic C031K4Tx
+GenC0.menu.pnum.GENERIC_C031K4TX.upload.maximum_size=16384
+GenC0.menu.pnum.GENERIC_C031K4TX.upload.maximum_data_size=12288
+GenC0.menu.pnum.GENERIC_C031K4TX.build.board=GENERIC_C031K4TX
+GenC0.menu.pnum.GENERIC_C031K4TX.build.product_line=STM32C031xx
+GenC0.menu.pnum.GENERIC_C031K4TX.build.variant=STM32C0xx/C031K(4-6)(T-U)
+GenC0.menu.pnum.GENERIC_C031K4TX.debug.svd_file={runtime.tools.STM32_SVD.path}/svd/STM32C0xx/STM32C031.svd
+
+# Generic C031K6Tx
+GenC0.menu.pnum.GENERIC_C031K6TX=Generic C031K6Tx
+GenC0.menu.pnum.GENERIC_C031K6TX.upload.maximum_size=32768
+GenC0.menu.pnum.GENERIC_C031K6TX.upload.maximum_data_size=12288
+GenC0.menu.pnum.GENERIC_C031K6TX.build.board=GENERIC_C031K6TX
+GenC0.menu.pnum.GENERIC_C031K6TX.build.product_line=STM32C031xx
+GenC0.menu.pnum.GENERIC_C031K6TX.build.variant=STM32C0xx/C031K(4-6)(T-U)
+GenC0.menu.pnum.GENERIC_C031K6TX.debug.svd_file={runtime.tools.STM32_SVD.path}/svd/STM32C0xx/STM32C031.svd
+
+# Generic C031K4Ux
+GenC0.menu.pnum.GENERIC_C031K4UX=Generic C031K4Ux
+GenC0.menu.pnum.GENERIC_C031K4UX.upload.maximum_size=16384
+GenC0.menu.pnum.GENERIC_C031K4UX.upload.maximum_data_size=12288
+GenC0.menu.pnum.GENERIC_C031K4UX.build.board=GENERIC_C031K4UX
+GenC0.menu.pnum.GENERIC_C031K4UX.build.product_line=STM32C031xx
+GenC0.menu.pnum.GENERIC_C031K4UX.build.variant=STM32C0xx/C031K(4-6)(T-U)
+GenC0.menu.pnum.GENERIC_C031K4UX.debug.svd_file={runtime.tools.STM32_SVD.path}/svd/STM32C0xx/STM32C031.svd
+
+# Generic C031K6Ux
+GenC0.menu.pnum.GENERIC_C031K6UX=Generic C031K6Ux
+GenC0.menu.pnum.GENERIC_C031K6UX.upload.maximum_size=32768
+GenC0.menu.pnum.GENERIC_C031K6UX.upload.maximum_data_size=12288
+GenC0.menu.pnum.GENERIC_C031K6UX.build.board=GENERIC_C031K6UX
+GenC0.menu.pnum.GENERIC_C031K6UX.build.product_line=STM32C031xx
+GenC0.menu.pnum.GENERIC_C031K6UX.build.variant=STM32C0xx/C031K(4-6)(T-U)
+GenC0.menu.pnum.GENERIC_C031K6UX.debug.svd_file={runtime.tools.STM32_SVD.path}/svd/STM32C0xx/STM32C031.svd
+
 # Generic C051C6Tx
 GenC0.menu.pnum.GENERIC_C051C6TX=Generic C051C6Tx
 GenC0.menu.pnum.GENERIC_C051C6TX.upload.maximum_size=32768

diff --git a/cmake/boards_db.cmake b/cmake/boards_db.cmake
@@ -7609,6 +7609,270 @@ add_library(GENERIC_C031F6PX_usb_none INTERFACE)
 target_compile_options(GENERIC_C031F6PX_usb_none INTERFACE
 )
 
+# GENERIC_C031K4TX
+# -----------------------------------------------------------------------------
+
+set(GENERIC_C031K4TX_VARIANT_PATH "${CMAKE_CURRENT_LIST_DIR}/../variants/STM32C0xx/C031K(4-6)(T-U)")
+set(GENERIC_C031K4TX_MAXSIZE 16384)
+set(GENERIC_C031K4TX_MAXDATASIZE 12288)
+set(GENERIC_C031K4TX_MCU cortex-m0plus)
+set(GENERIC_C031K4TX_FPCONF "-")
+add_library(GENERIC_C031K4TX INTERFACE)
+target_compile_options(GENERIC_C031K4TX INTERFACE
+  "SHELL:-DUSE_HAL_DRIVER -DUSE_FULL_LL_DRIVER"
+  "SHELL:-DSTM32C031xx -D__CORTEX_SC=0"
+  -mcpu=${GENERIC_C031K4TX_MCU}
+)
+target_compile_definitions(GENERIC_C031K4TX INTERFACE
+  "STM32C0xx"
+	"ARDUINO_GENERIC_C031K4TX"
+	"BOARD_NAME=\"GENERIC_C031K4TX\""
+	"BOARD_ID=GENERIC_C031K4TX"
+	"VARIANT_H=\"variant_generic.h\""
+)
+target_include_directories(GENERIC_C031K4TX INTERFACE
+  ${CMAKE_CURRENT_LIST_DIR}/../system/STM32C0xx
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/STM32C0xx_HAL_Driver/Inc
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/STM32C0xx_HAL_Driver/Src
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/CMSIS/Device/ST/STM32C0xx/Include/
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/CMSIS/Device/ST/STM32C0xx/Source/
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/CMSIS/Device/ST/STM32C0xx/Source/Templates/gcc/
+  ${GENERIC_C031K4TX_VARIANT_PATH}
+)
+
+target_link_options(GENERIC_C031K4TX INTERFACE
+  "LINKER:--default-script=${GENERIC_C031K4TX_VARIANT_PATH}/ldscript.ld"
+  "LINKER:--defsym=LD_FLASH_OFFSET=0x0"
+  "LINKER:--defsym=LD_MAX_SIZE=16384"
+  "LINKER:--defsym=LD_MAX_DATA_SIZE=12288"
+  -mcpu=${GENERIC_C031K4TX_MCU}
+)
+
+add_library(GENERIC_C031K4TX_serial_disabled INTERFACE)
+target_compile_options(GENERIC_C031K4TX_serial_disabled INTERFACE
+)
+add_library(GENERIC_C031K4TX_serial_generic INTERFACE)
+target_compile_options(GENERIC_C031K4TX_serial_generic INTERFACE
+  "SHELL:-DHAL_UART_MODULE_ENABLED"
+)
+add_library(GENERIC_C031K4TX_serial_none INTERFACE)
+target_compile_options(GENERIC_C031K4TX_serial_none INTERFACE
+  "SHELL:-DHAL_UART_MODULE_ENABLED -DHWSERIAL_NONE"
+)
+add_library(GENERIC_C031K4TX_usb_CDC INTERFACE)
+target_compile_options(GENERIC_C031K4TX_usb_CDC INTERFACE
+  "SHELL:-DUSBCON -DUSBD_VID=0x0483 -DUSBD_PID=0x5740 -DHAL_PCD_MODULE_ENABLED -DUSBD_USE_CDC -DDISABLE_GENERIC_SERIALUSB"
+)
+add_library(GENERIC_C031K4TX_usb_CDCgen INTERFACE)
+target_compile_options(GENERIC_C031K4TX_usb_CDCgen INTERFACE
+  "SHELL:-DUSBCON -DUSBD_VID=0x0483 -DUSBD_PID=0x5740 -DHAL_PCD_MODULE_ENABLED -DUSBD_USE_CDC"
+)
+add_library(GENERIC_C031K4TX_usb_HID INTERFACE)
+target_compile_options(GENERIC_C031K4TX_usb_HID INTERFACE
+  "SHELL:-DUSBCON -DUSBD_VID=0x0483 -DUSBD_PID=0x5740 -DHAL_PCD_MODULE_ENABLED -DUSBD_USE_HID_COMPOSITE"
+)
+add_library(GENERIC_C031K4TX_usb_none INTERFACE)
+target_compile_options(GENERIC_C031K4TX_usb_none INTERFACE
+)
+
+# GENERIC_C031K4UX
+# -----------------------------------------------------------------------------
+
+set(GENERIC_C031K4UX_VARIANT_PATH "${CMAKE_CURRENT_LIST_DIR}/../variants/STM32C0xx/C031K(4-6)(T-U)")
+set(GENERIC_C031K4UX_MAXSIZE 16384)
+set(GENERIC_C031K4UX_MAXDATASIZE 12288)
+set(GENERIC_C031K4UX_MCU cortex-m0plus)
+set(GENERIC_C031K4UX_FPCONF "-")
+add_library(GENERIC_C031K4UX INTERFACE)
+target_compile_options(GENERIC_C031K4UX INTERFACE
+  "SHELL:-DUSE_HAL_DRIVER -DUSE_FULL_LL_DRIVER"
+  "SHELL:-DSTM32C031xx -D__CORTEX_SC=0"
+  -mcpu=${GENERIC_C031K4UX_MCU}
+)
+target_compile_definitions(GENERIC_C031K4UX INTERFACE
+  "STM32C0xx"
+	"ARDUINO_GENERIC_C031K4UX"
+	"BOARD_NAME=\"GENERIC_C031K4UX\""
+	"BOARD_ID=GENERIC_C031K4UX"
+	"VARIANT_H=\"variant_generic.h\""
+)
+target_include_directories(GENERIC_C031K4UX INTERFACE
+  ${CMAKE_CURRENT_LIST_DIR}/../system/STM32C0xx
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/STM32C0xx_HAL_Driver/Inc
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/STM32C0xx_HAL_Driver/Src
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/CMSIS/Device/ST/STM32C0xx/Include/
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/CMSIS/Device/ST/STM32C0xx/Source/
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/CMSIS/Device/ST/STM32C0xx/Source/Templates/gcc/
+  ${GENERIC_C031K4UX_VARIANT_PATH}
+)
+
+target_link_options(GENERIC_C031K4UX INTERFACE
+  "LINKER:--default-script=${GENERIC_C031K4UX_VARIANT_PATH}/ldscript.ld"
+  "LINKER:--defsym=LD_FLASH_OFFSET=0x0"
+  "LINKER:--defsym=LD_MAX_SIZE=16384"
+  "LINKER:--defsym=LD_MAX_DATA_SIZE=12288"
+  -mcpu=${GENERIC_C031K4UX_MCU}
+)
+
+add_library(GENERIC_C031K4UX_serial_disabled INTERFACE)
+target_compile_options(GENERIC_C031K4UX_serial_disabled INTERFACE
+)
+add_library(GENERIC_C031K4UX_serial_generic INTERFACE)
+target_compile_options(GENERIC_C031K4UX_serial_generic INTERFACE
+  "SHELL:-DHAL_UART_MODULE_ENABLED"
+)
+add_library(GENERIC_C031K4UX_serial_none INTERFACE)
+target_compile_options(GENERIC_C031K4UX_serial_none INTERFACE
+  "SHELL:-DHAL_UART_MODULE_ENABLED -DHWSERIAL_NONE"
+)
+add_library(GENERIC_C031K4UX_usb_CDC INTERFACE)
+target_compile_options(GENERIC_C031K4UX_usb_CDC INTERFACE
+  "SHELL:-DUSBCON -DUSBD_VID=0x0483 -DUSBD_PID=0x5740 -DHAL_PCD_MODULE_ENABLED -DUSBD_USE_CDC -DDISABLE_GENERIC_SERIALUSB"
+)
+add_library(GENERIC_C031K4UX_usb_CDCgen INTERFACE)
+target_compile_options(GENERIC_C031K4UX_usb_CDCgen INTERFACE
+  "SHELL:-DUSBCON -DUSBD_VID=0x0483 -DUSBD_PID=0x5740 -DHAL_PCD_MODULE_ENABLED -DUSBD_USE_CDC"
+)
+add_library(GENERIC_C031K4UX_usb_HID INTERFACE)
+target_compile_options(GENERIC_C031K4UX_usb_HID INTERFACE
+  "SHELL:-DUSBCON -DUSBD_VID=0x0483 -DUSBD_PID=0x5740 -DHAL_PCD_MODULE_ENABLED -DUSBD_USE_HID_COMPOSITE"
+)
+add_library(GENERIC_C031K4UX_usb_none INTERFACE)
+target_compile_options(GENERIC_C031K4UX_usb_none INTERFACE
+)
+
+# GENERIC_C031K6TX
+# -----------------------------------------------------------------------------
+
+set(GENERIC_C031K6TX_VARIANT_PATH "${CMAKE_CURRENT_LIST_DIR}/../variants/STM32C0xx/C031K(4-6)(T-U)")
+set(GENERIC_C031K6TX_MAXSIZE 32768)
+set(GENERIC_C031K6TX_MAXDATASIZE 12288)
+set(GENERIC_C031K6TX_MCU cortex-m0plus)
+set(GENERIC_C031K6TX_FPCONF "-")
+add_library(GENERIC_C031K6TX INTERFACE)
+target_compile_options(GENERIC_C031K6TX INTERFACE
+  "SHELL:-DUSE_HAL_DRIVER -DUSE_FULL_LL_DRIVER"
+  "SHELL:-DSTM32C031xx -D__CORTEX_SC=0"
+  -mcpu=${GENERIC_C031K6TX_MCU}
+)
+target_compile_definitions(GENERIC_C031K6TX INTERFACE
+  "STM32C0xx"
+	"ARDUINO_GENERIC_C031K6TX"
+	"BOARD_NAME=\"GENERIC_C031K6TX\""
+	"BOARD_ID=GENERIC_C031K6TX"
+	"VARIANT_H=\"variant_generic.h\""
+)
+target_include_directories(GENERIC_C031K6TX INTERFACE
+  ${CMAKE_CURRENT_LIST_DIR}/../system/STM32C0xx
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/STM32C0xx_HAL_Driver/Inc
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/STM32C0xx_HAL_Driver/Src
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/CMSIS/Device/ST/STM32C0xx/Include/
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/CMSIS/Device/ST/STM32C0xx/Source/
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/CMSIS/Device/ST/STM32C0xx/Source/Templates/gcc/
+  ${GENERIC_C031K6TX_VARIANT_PATH}
+)
+
+target_link_options(GENERIC_C031K6TX INTERFACE
+  "LINKER:--default-script=${GENERIC_C031K6TX_VARIANT_PATH}/ldscript.ld"
+  "LINKER:--defsym=LD_FLASH_OFFSET=0x0"
+  "LINKER:--defsym=LD_MAX_SIZE=32768"
+  "LINKER:--defsym=LD_MAX_DATA_SIZE=12288"
+  -mcpu=${GENERIC_C031K6TX_MCU}
+)
+
+add_library(GENERIC_C031K6TX_serial_disabled INTERFACE)
+target_compile_options(GENERIC_C031K6TX_serial_disabled INTERFACE
+)
+add_library(GENERIC_C031K6TX_serial_generic INTERFACE)
+target_compile_options(GENERIC_C031K6TX_serial_generic INTERFACE
+  "SHELL:-DHAL_UART_MODULE_ENABLED"
+)
+add_library(GENERIC_C031K6TX_serial_none INTERFACE)
+target_compile_options(GENERIC_C031K6TX_serial_none INTERFACE
+  "SHELL:-DHAL_UART_MODULE_ENABLED -DHWSERIAL_NONE"
+)
+add_library(GENERIC_C031K6TX_usb_CDC INTERFACE)
+target_compile_options(GENERIC_C031K6TX_usb_CDC INTERFACE
+  "SHELL:-DUSBCON -DUSBD_VID=0x0483 -DUSBD_PID=0x5740 -DHAL_PCD_MODULE_ENABLED -DUSBD_USE_CDC -DDISABLE_GENERIC_SERIALUSB"
+)
+add_library(GENERIC_C031K6TX_usb_CDCgen INTERFACE)
+target_compile_options(GENERIC_C031K6TX_usb_CDCgen INTERFACE
+  "SHELL:-DUSBCON -DUSBD_VID=0x0483 -DUSBD_PID=0x5740 -DHAL_PCD_MODULE_ENABLED -DUSBD_USE_CDC"
+)
+add_library(GENERIC_C031K6TX_usb_HID INTERFACE)
+target_compile_options(GENERIC_C031K6TX_usb_HID INTERFACE
+  "SHELL:-DUSBCON -DUSBD_VID=0x0483 -DUSBD_PID=0x5740 -DHAL_PCD_MODULE_ENABLED -DUSBD_USE_HID_COMPOSITE"
+)
+add_library(GENERIC_C031K6TX_usb_none INTERFACE)
+target_compile_options(GENERIC_C031K6TX_usb_none INTERFACE
+)
+
+# GENERIC_C031K6UX
+# -----------------------------------------------------------------------------
+
+set(GENERIC_C031K6UX_VARIANT_PATH "${CMAKE_CURRENT_LIST_DIR}/../variants/STM32C0xx/C031K(4-6)(T-U)")
+set(GENERIC_C031K6UX_MAXSIZE 32768)
+set(GENERIC_C031K6UX_MAXDATASIZE 12288)
+set(GENERIC_C031K6UX_MCU cortex-m0plus)
+set(GENERIC_C031K6UX_FPCONF "-")
+add_library(GENERIC_C031K6UX INTERFACE)
+target_compile_options(GENERIC_C031K6UX INTERFACE
+  "SHELL:-DUSE_HAL_DRIVER -DUSE_FULL_LL_DRIVER"
+  "SHELL:-DSTM32C031xx -D__CORTEX_SC=0"
+  -mcpu=${GENERIC_C031K6UX_MCU}
+)
+target_compile_definitions(GENERIC_C031K6UX INTERFACE
+  "STM32C0xx"
+	"ARDUINO_GENERIC_C031K6UX"
+	"BOARD_NAME=\"GENERIC_C031K6UX\""
+	"BOARD_ID=GENERIC_C031K6UX"
+	"VARIANT_H=\"variant_generic.h\""
+)
+target_include_directories(GENERIC_C031K6UX INTERFACE
+  ${CMAKE_CURRENT_LIST_DIR}/../system/STM32C0xx
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/STM32C0xx_HAL_Driver/Inc
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/STM32C0xx_HAL_Driver/Src
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/CMSIS/Device/ST/STM32C0xx/Include/
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/CMSIS/Device/ST/STM32C0xx/Source/
+  ${CMAKE_CURRENT_LIST_DIR}/../system/Drivers/CMSIS/Device/ST/STM32C0xx/Source/Templates/gcc/
+  ${GENERIC_C031K6UX_VARIANT_PATH}
+)
+
+target_link_options(GENERIC_C031K6UX INTERFACE
+  "LINKER:--default-script=${GENERIC_C031K6UX_VARIANT_PATH}/ldscript.ld"
+  "LINKER:--defsym=LD_FLASH_OFFSET=0x0"
+  "LINKER:--defsym=LD_MAX_SIZE=32768"
+  "LINKER:--defsym=LD_MAX_DATA_SIZE=12288"
+  -mcpu=${GENERIC_C031K6UX_MCU}
+)
+
+add_library(GENERIC_C031K6UX_serial_disabled INTERFACE)
+target_compile_options(GENERIC_C031K6UX_serial_disabled INTERFACE
+)
+add_library(GENERIC_C031K6UX_serial_generic INTERFACE)
+target_compile_options(GENERIC_C031K6UX_serial_generic INTERFACE
+  "SHELL:-DHAL_UART_MODULE_ENABLED"
+)
+add_library(GENERIC_C031K6UX_serial_none INTERFACE)
+target_compile_options(GENERIC_C031K6UX_serial_none INTERFACE
+  "SHELL:-DHAL_UART_MODULE_ENABLED -DHWSERIAL_NONE"
+)
+add_library(GENERIC_C031K6UX_usb_CDC INTERFACE)
+target_compile_options(GENERIC_C031K6UX_usb_CDC INTERFACE
+  "SHELL:-DUSBCON -DUSBD_VID=0x0483 -DUSBD_PID=0x5740 -DHAL_PCD_MODULE_ENABLED -DUSBD_USE_CDC -DDISABLE_GENERIC_SERIALUSB"
+)
+add_library(GENERIC_C031K6UX_usb_CDCgen INTERFACE)
+target_compile_options(GENERIC_C031K6UX_usb_CDCgen INTERFACE
+  "SHELL:-DUSBCON -DUSBD_VID=0x0483 -DUSBD_PID=0x5740 -DHAL_PCD_MODULE_ENABLED -DUSBD_USE_CDC"
+)
+add_library(GENERIC_C031K6UX_usb_HID INTERFACE)
+target_compile_options(GENERIC_C031K6UX_usb_HID INTERFACE
+  "SHELL:-DUSBCON -DUSBD_VID=0x0483 -DUSBD_PID=0x5740 -DHAL_PCD_MODULE_ENABLED -DUSBD_USE_HID_COMPOSITE"
+)
+add_library(GENERIC_C031K6UX_usb_none INTERFACE)
+target_compile_options(GENERIC_C031K6UX_usb_none INTERFACE
+)
+
 # GENERIC_C051C6TX
 # -----------------------------------------------------------------------------
 

diff --git a/variants/STM32C0xx/C031K(4-6)(T-U)/generic_clock.c b/variants/STM32C0xx/C031K(4-6)(T-U)/generic_clock.c
@@ -13,6 +13,7 @@
 #if defined(ARDUINO_GENERIC_C031K4TX) || defined(ARDUINO_GENERIC_C031K4UX) ||\
     defined(ARDUINO_GENERIC_C031K6TX) || defined(ARDUINO_GENERIC_C031K6UX)
 #include "pins_arduino.h"
+#include "stm32yyxx_ll_utils.h"
 
 /**
   * @brief  System Clock Configuration
@@ -21,8 +22,32 @@
   */
 WEAK void SystemClock_Config(void)
 {
-  /* SystemClock_Config can be generated by STM32CubeMX */
-#warning "SystemClock_Config() is empty. Default clock at reset is used."
+  LL_FLASH_SetLatency(LL_FLASH_LATENCY_1);
+
+  /* HSI configuration and activation */
+  LL_RCC_HSI_Enable();
+  while (LL_RCC_HSI_IsReady() != 1) {
+  }
+
+  LL_RCC_HSI_SetCalibTrimming(64);
+  LL_RCC_SetHSIDiv(LL_RCC_HSI_DIV_1);
+  /* Set AHB prescaler*/
+  LL_RCC_SetAHBPrescaler(LL_RCC_HCLK_DIV_1);
+
+  /* Sysclk activation on the HSI */
+  LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_HSI);
+  while (LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_HSI) {
+  }
+
+  /* Set APB1 prescaler*/
+  LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_1);
+  /* Update CMSIS variable (which can be updated also through SystemCoreClockUpdate function) */
+  LL_SetSystemCoreClock(48000000);
+
+  /* Update the time base */
+  if (HAL_InitTick(TICK_INT_PRIORITY) != HAL_OK) {
+    Error_Handler();
+  }
 }
 
 #endif /* ARDUINO_GENERIC_* */