marlin/buildroot/share/PlatformIO/variants/MARLIN_G0B1RE/variant_MARLIN_STM32G0B1RE.cpp

/*
 *******************************************************************************
 * Copyright (c) 2020-2021, 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
 *
 *******************************************************************************
 */

#ifdef STM32G0B1xx
#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/A10
  PB_3,   // D19
  PB_4,   // D20
  PB_5,   // D21
  PB_6,   // D22
  PB_7,   // D23
  PB_8,   // D24
  PB_9,   // D25
  PB_10,  // D26/A11
  PB_11,  // D27/A12
  PB_12,  // D28/A13
  PB_13,  // D29
  PB_14,  // D30
  PB_15,  // D31
  PC_0,   // D32
  PC_1,   // D33
  PC_2,   // D34
  PC_3,   // D35
  PC_4,   // D36/A14
  PC_5,   // D37/A15
  PC_6,   // D38
  PC_7,   // D39
  PC_8,   // D40
  PC_9,   // D41
  PC_10,  // D42
  PC_11,  // D43
  PC_12,  // D44
  PC_13,  // D45
  PC_14,  // D46
  PC_15,  // D47
  PD_0,   // D48
  PD_1,   // D49
  PD_2,   // D50
  PD_3,   // D51
  PD_4,   // D52
  PD_5,   // D53
  PD_6,   // D54
  PD_8,   // D55
  PD_9,   // D56
  PF_0,   // D57
  PF_1,   // D58
  PF_2,   // D59
  PA_9_R, // D60
  PA_10_R // D61
};

// 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
  18, // A10, PB2
  26, // A11, PB10
  27, // A12, PB11
  28, // A13, PB12
  36, // A14, PC4
  37  // A15, PC5
};

// ----------------------------------------------------------------------------

#ifdef __cplusplus
extern "C" {
#endif

/**
  * @brief  System Clock Configuration
  *         The system Clock is configured as follows :
  *            System Clock source            = PLL (HSE)
  *            SYSCLK(Hz)                     = 64000000
  *            HCLK(Hz)                       = 64000000
  *            AHB Prescaler                  = 1
  *            APB1 Prescaler                 = 1
  *            PLL_M                          = 1
  *            PLL_N                          = 24
  *            PLL_R                          = 3
  *            PLL_P                          = 2
  *            PLL_Q                          = 4
  *            USB(Hz)                        = 48000000 (PLLQ)
  * @param  None
  * @retval None
  */
WEAK void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
  RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};

  // Reset clock registers (in case bootloader has changed them)
  RCC->CR |= RCC_CR_HSION;
  while (!(RCC->CR & RCC_CR_HSIRDY))
      ;
  RCC->CFGR = 0x00000000;
  RCC->CR = RCC_CR_HSION;
  while (RCC->CR & RCC_CR_PLLRDY)
      ;
  RCC->PLLCFGR = 0x00001000;

  /** Configure the main internal regulator output voltage
  */
  HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1);
  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV1;
  RCC_OscInitStruct.PLL.PLLN = 24;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
  RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV4;
  RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV3;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    Error_Handler();
  }
  /** Initializes the peripherals clocks
  */
  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USB;
  PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_PLL;
  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
  {
    Error_Handler();
  }
}

#ifdef __cplusplus
}
#endif
#endif /* STM32G0B1xx */