Add custom devboard - Databoard (#2806)

its-kronos · fpistm · web-flow · commit f1432b05b1a9 · 2025-09-23T09:13:33.000+02:00
variant(f1): add  Databoard

Signed-off-by: its-kronos &lt;140297693+its-kronos@users.noreply.github.com&gt;
Co-authored-by: Frederic Pillon &lt;frederic.pillon@st.com&gt;
diff --git a/README.md b/README.md
@@ -304,6 +304,7 @@ User can add a STM32 based board following this [wiki](https://github.com/stm32d
 | :green_heart:  | STM32F101ZC<br>STM32F101ZD<br>STM32F101ZE | Generic Board | *2.4.0* |  |
 | :green_heart:  | STM32F103C6<br>STM32F103C8<br>STM32F103CB | [Blue Pill](https://stm32-base.org/boards/STM32F103C8T6-Blue-Pill) | *1.2.0* | USB CDC support since *1.5.0*<br> Maple bootloaders support since *1.6.0* |
 | :green_heart:  | STM32F103C8<br>STM32F103CB | [Black Pill](https://stm32-base.org/boards/STM32F103C8T6-Black-Pill) | *1.5.0* |  |
+| :yellow_heart:  | STM32F103C8 | [Databoard](https://github.com/its-kronos/Databoard) | **2.12.0** |  |
 | :green_heart:  | STM32F103C4<br>STM32F103C6<br>STM32F103C8<br>STM32F103CB | Generic Board | *1.9.0* |  |
 | :green_heart:  | STM32F103R8<br>STM32F103RB<br>STM32F103RC<br>STM32F103RE | [Blue Button F103Rx](https://stm32-base.org/boards/STM32F103RET6-Generic-Board) | *1.9.0* |  |
 | :green_heart:  | STM32F103R6<br>STM32F103R8<br>STM32F103RB<br>STM32F103RC<br>STM32F103RD<br>STM32F103RE<br>STM32F103RF<br>STM32F103RG | Generic Board | *1.9.0* |  |
diff --git a/boards.txt b/boards.txt
@@ -2985,6 +2985,16 @@ GenF1.menu.pnum.BLACKPILL_F103CB.build.variant_h=variant_PILL_F103Cx.h
 GenF1.menu.pnum.BLACKPILL_F103CB.build.variant=STM32F1xx/F103C8T_F103CB(T-U)
 GenF1.menu.pnum.BLACKPILL_F103CB.debug.svd_file={runtime.tools.STM32_SVD.path}/svd/STM32F1xx/STM32F103.svd
 
+# Databoard board
+GenF1.menu.pnum.DATABOARD=Databoard
+GenF1.menu.pnum.DATABOARD.upload.maximum_size=65536
+GenF1.menu.pnum.DATABOARD.upload.maximum_data_size=20480
+GenF1.menu.pnum.DATABOARD.build.board=DATABOARD
+GenF1.menu.pnum.DATABOARD.build.product_line=STM32F103xB
+GenF1.menu.pnum.DATABOARD.build.variant_h=variant_{build.board}.h
+GenF1.menu.pnum.DATABOARD.build.variant=STM32F1xx/F103C8T_F103CB(T-U)
+GenF1.menu.pnum.DATABOARD.debug.svd_file={runtime.tools.STM32_SVD.path}/svd/STM32F1xx/STM32F103.svd
+
 # VCCGND_F103ZET6_MINI board
 GenF1.menu.pnum.VCCGND_F103ZET6_MINI=VCCGND F103ZET6 Mini
 GenF1.menu.pnum.VCCGND_F103ZET6_MINI.upload.maximum_size=524288
diff --git a/variants/STM32F1xx/F103C8T_F103CB(T-U)/variant_DATABOARD.cpp b/variants/STM32F1xx/F103C8T_F103CB(T-U)/variant_DATABOARD.cpp
@@ -0,0 +1,139 @@
+/*
+ *******************************************************************************
+ * Copyright (c) 2020, STMicroelectronics
+ * All rights reserved.
+ *
+ * This software component is licensed by ST 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
+ *
+ *******************************************************************************
+ */
+#if defined(ARDUINO_DATABOARD)
+#include "pins_arduino.h"
+
+// Digital PinName array
+const PinName digitalPin[] = {
+  PA_0,   // D0/A0
+  PA_1,   // D1/A1
+  PA_2,   // D2/A2
+  PA_3,   // D3/A3
+  PA_4,   // D4/A4
+  PA_5,   // D5/A5
+  PA_6,   // D6/A6
+  PA_7,   // D7/A7
+  PA_8,   // D8
+  PA_9,   // D9
+  PA_10,  // D10
+  PA_11,  // D11
+  PA_12,  // D12
+  PA_13,  // D13
+  PA_14,  // D14
+  PA_15,  // D15
+  PB_0,   // D16/A8
+  PB_1,   // D17/A9
+  PB_2,   // D18
+  PB_3,   // D19
+  PB_4,   // D20
+  PB_5,   // D21
+  PB_6,   // D22
+  PB_7,   // D23
+  PB_8,   // D24
+  PB_9,   // D25
+  PB_10,  // D26
+  PB_11,  // D27
+  PB_12,  // D28
+  PB_13,  // D29
+  PB_14,  // D30
+  PB_15,  // D31
+  PC_13,  // D32
+  PC_14,  // D33
+  PC_15,  // D34
+  PD_0,   // D35
+  PD_1    // D36
+};
+
+// Analog (Ax) pin number array
+const uint32_t analogInputPin[] = {
+  0,  // A0,  PA0
+  1,  // A1,  PA1
+  2,  // A2,  PA2
+  3,  // A3,  PA3
+  4,  // A4,  PA4
+  5,  // A5,  PA5
+  6,  // A6,  PA6
+  7,  // A7,  PA7
+  16, // A8,  PB0
+  17  // A9,  PB1
+};
+
+
+// ----------------------------------------------------------------------------
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+  * @brief  System Clock Configuration
+  *         The system Clock is configured as follow :
+  *            System Clock source            = PLL (HSE)
+  *            SYSCLK(Hz)                     = 72000000
+  *            HCLK(Hz)                       = 72000000
+  *            AHB Prescaler                  = 1
+  *            APB1 Prescaler                 = 2
+  *            APB2 Prescaler                 = 1
+  *            PLL_Source                     = HSE
+  *            PLL_Mul                        = 9
+  *            Flash Latency(WS)              = 2
+  *            ADC Prescaler                  = 6
+  *            USB Prescaler                  = 1.5
+  * @param  None
+  * @retval None
+  */
+WEAK void SystemClock_Config(void)
+{
+  RCC_OscInitTypeDef RCC_OscInitStruct = {};
+  RCC_ClkInitTypeDef RCC_ClkInitStruct = {};
+  RCC_PeriphCLKInitTypeDef PeriphClkInit = {};
+
+  /* Initializes the CPU, AHB and APB busses clocks */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV2;
+  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
+  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
+    Error_Handler();
+  }
+
+  /* Initializes the CPU, AHB and APB busses clocks */
+  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK
+                                | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
+  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+
+  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) {
+    Error_Handler();
+  }
+
+  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC | RCC_PERIPHCLK_USB;
+  PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV6;
+  PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_PLL_DIV1_5;
+  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) {
+    Error_Handler();
+  }
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+
+
+#endif /* ARDUINO_DATABOARD */
diff --git a/variants/STM32F1xx/F103C8T_F103CB(T-U)/variant_DATABOARD.h b/variants/STM32F1xx/F103C8T_F103CB(T-U)/variant_DATABOARD.h
