src/variants/r9mx/variant_R9MX.cpp

   1 /*
   2  *******************************************************************************
   3  * Copyright (c) 2019, STMicroelectronics
   4  * All rights reserved.
   5  *
   6  * This software component is licensed by ST under BSD 3-Clause license,
   7  * the "License"; You may not use this file except in compliance with the
   8  * License. You may obtain a copy of the License at:
   9  *                        opensource.org/licenses/BSD-3-Clause
  10  *
  11  *******************************************************************************
  12  */
  13
  14 #include "pins_arduino.h"
  15
  16 #ifdef __cplusplus
  17 extern "C" {
  18 #endif
  19
  20 #include <string.h>
  21
  22 // Digital PinName array
  23 // This array allows to wrap Arduino pin number(Dx or x)
  24 // to STM32 PinName (PX_n)
  25 const PinName digitalPin[] = {
  26   PA_10, //D0
  27   PA_9,  //D1
  28   PA_12, //D2
  29   PB_3,  //D3
  30   PB_5,  //D4
  31   PA_15, //D5
  32   PB_10, //D6
  33   PC_7,  //D7
  34   PB_6,  //D8
  35   PA_8,  //D9
  36   PA_11, //D10
  37   PB_15, //D11
  38   PB_14, //D12
  39   PB_13, //D13 - LED
  40   PB_7,  //D14
  41   PB_8,  //D15
  42   // ST Morpho
  43   // CN5 Left Side
  44   PC_10, //D16
  45   PC_12, //D17
  46   PB_12, //D18
  47   PA_13, //D19
  48   PA_14, //D20
  49   PC_13, //D21 - User Button
  50   PC_14, //D22
  51   PC_15, //D23
  52   PH_0,  //D24
  53   PH_1,  //D25
  54   PB_4,  //D26
  55   PB_9,  //D27
  56   // CN5 Right Side
  57   PC_11, //D28
  58   PD_2,  //D29
  59   // CN6 Left Side
  60   PC_9,  //D30
  61   // CN6 Right Side
  62   PC_8,  //D31
  63   PC_6,  //D32
  64   PC_5,  //D33
  65   PB_0,  //D34
  66   PA_10, //D35
  67   PA_9,  //D36
  68   PB_11, //D37
  69   PB_2,  //D38
  70   PB_1,  //D39
  71   PA_7,  //D40
  72   PA_6,  //D41
  73   PA_5,  //D42
  74   PA_4,  //D43
  75   PC_4,  //D44
  76   PA_3,  //D45 - STLink Rx
  77   PA_2,  //D46 - STLink Tx
  78   PA_0,  //D47/A0
  79   PA_1,  //D48/A1
  80   PC_3,  //D49/A2
  81   PC_2,  //D50/A3
  82   PC_1,  //D51/A4
  83   PC_0   //D52/A5
  84 };
  85
  86 // If analog pins are not contiguous in the digitalPin array:
  87 // Add the analogInputPin array without defining NUM_ANALOG_FIRST
  88 // Analog (Ax) pin number array
  89 // where x is the index to retrieve the digital pin number
  90 const uint32_t analogInputPin[] = {
  91   47, //A0
  92   48, //A1
  93   49, //A2
  94   50, //A3
  95   51, //A4
  96   52, //A5
  97   34, //A6
  98   39, //A7
  99   40, //A8
 100   41, //A9
 101   42, //A10
 102   43  //A11
 103 };
 104
 105 #ifdef __cplusplus
 106 }
 107 #endif
 108
 109 // ----------------------------------------------------------------------------
 110
 111 #ifdef __cplusplus
 112 extern "C" {
 113 #endif
 114
 115 extern void SystemCoreClockUpdate(void);
 116
 117 /**
 118   * @brief  System Clock Configuration
 119   *         The system Clock is configured as follows :
 120   *            System Clock source            = PLL (MSI)
 121   *            SYSCLK(Hz)                     = 80000000
 122   *            HCLK(Hz)                       = 80000000
 123   *            AHB Prescaler                  = 1
 124   *            APB1 Prescaler                 = 1
 125   *            APB2 Prescaler                 = 1
 126   *            MSI Frequency(Hz)              = 4000000
 127   *            PLL_M                          = 1
 128   *            PLL_N                          = 40
 129   *            PLL_R                          = 2
 130   *            PLL_P                          = 7
 131   *            PLL_Q                          = 2
 132   *            Flash Latency(WS)              = 4
 133   * @param  None
 134   * @retval None
 135   */
 136 void SystemClock_Config(void)
 137 {
 138
 139   RCC_ClkInitTypeDef RCC_ClkInitStruct;
 140   RCC_OscInitTypeDef RCC_OscInitStruct;
 141   RCC_PeriphCLKInitTypeDef PeriphClkInit;
 142
 143   /* Enable Power Control clock */
 144   __HAL_RCC_PWR_CLK_ENABLE();
 145
 146   /* The voltage scaling allows optimizing the power consumption when the device is
 147      clocked below the maximum system frequency, to update the voltage scaling value
 148      regarding system frequency refer to product datasheet.  */
 149   __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
 150
 151   memset(&RCC_OscInitStruct, 0, sizeof(RCC_OscInitTypeDef));
 152   memset(&RCC_ClkInitStruct, 0, sizeof(RCC_ClkInitTypeDef));
 153   memset(&PeriphClkInit, 0, sizeof(RCC_PeriphCLKInitTypeDef));
 154
 155   /* MSI is enabled after System reset, activate PLL with MSI as source */
 156   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
 157   RCC_OscInitStruct.HSEState = RCC_HSE_OFF;
 158   RCC_OscInitStruct.HSIState = RCC_HSI_ON;
 159   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
 160   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
 161   RCC_OscInitStruct.PLL.PLLM = 1;  // 16MHz
 162   RCC_OscInitStruct.PLL.PLLN = 10; // 10 * 16MHz
 163   RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2; // 160MHz / 2
 164   RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7; // 160MHz / 7
 165   RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV4; // 160MHz / 4
 166   RCC_OscInitStruct.HSICalibrationValue = 0x10;
 167
 168   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
 169     /* Initialization Error */
 170     while (1);
 171   }
 172
 173   /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
 174      clocks dividers */
 175   RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
 176   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
 177   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
 178   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
 179   RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
 180   if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK) {
 181     /* Initialization Error */
 182     while (1);
 183   }
 184
 185   PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1 | RCC_PERIPHCLK_USART2;
 186   PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2;
 187   PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
 188   if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
 189   {
 190     while (1);
 191   }
 192
 193   SystemCoreClockUpdate();
 194
 195   HAL_ResumeTick();
 196 }
 197
 198
 199 #ifdef __cplusplus
 200 }
 201 #endif