/* Copyright (c) 2011 Arduino. All right reserved. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include "pins_arduino.h" #ifdef __cplusplus extern "C" { #endif // Digital PinName array const PinName digitalPin[] = { PA_0, // Digital pin 0 PA_1, // Digital pin 1 PA_2, // Digital pin 2 PA_3, // Digital pin 3 PA_4, // Digital pin 4 PA_5, // Digital pin 5 PA_6, // Digital pin 6 PA_7, // Digital pin 7 PA_8, // Digital pin 8 PA_9, // Digital pin 9 PA_10, // Digital pin 10 PA_11, // Digital pin 11 PA_12, // Digital pin 12 PA_13, // Digital pin 13 PA_14, // Digital pin 14 PA_15, // Digital pin 15 PB_0, // Digital pin 16 PB_1, // Digital pin 17 PB_2, // Digital pin 18 PB_3, // Digital pin 19 PB_4, // Digital pin 20 PB_5, // Digital pin 21 PB_6, // Digital pin 22 PB_7, // Digital pin 23 PB_8, // Digital pin 24 PB_9, // Digital pin 25 PB_10, // Digital pin 26 PB_12, // Digital pin 27 PB_13, // Digital pin 28 PB_14, // Digital pin 29 PB_15, // Digital pin 30 PC_0, // Digital pin 31 PC_1, // Digital pin 32 PC_2, // Digital pin 33 PC_3, // Digital pin 34 PC_4, // Digital pin 35 PC_5, // Digital pin 36 PC_6, // Digital pin 37 PC_7, // Digital pin 38 PC_8, // Digital pin 39 PC_9, // Digital pin 40 PC_10, // Digital pin 41 PC_11, // Digital pin 42 PC_12, // Digital pin 43 PC_13, // Digital pin 44 PC_14, // Digital pin 45 PC_15, // Digital pin 46 PD_2, // Digital pin 47 PH_0, // Digital pin 48, used by the external oscillator PH_1 // Digital pin 49, used by the external oscillator }; // 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 31, // A10, PC0 32, // A11, PC1 33, // A12, PC2 34, // A13, PC3 35, // A14, PC4 36 // A15, PC5 }; #ifdef __cplusplus } #endif // ---------------------------------------------------------------------------- #ifdef __cplusplus extern "C" { #endif /* * @brief Configures the System clock source, PLL Multiplier and Divider factors, * AHB/APBx prescalers and Flash settings * @note This function should be called only once the RCC clock configuration * is reset to the default reset state (done in SystemInit() function). * @param None * @retval None */ /******************************************************************************/ /* PLL (clocked by HSE) used as System clock source */ /******************************************************************************/ static uint8_t SetSysClock_PLL_HSE(uint8_t bypass) { RCC_OscInitTypeDef RCC_OscInitStruct; RCC_ClkInitTypeDef RCC_ClkInitStruct; /* The voltage scaling allows optimizing the power consumption when the device is clocked below the maximum system frequency, to update the voltage scaling value regarding system frequency refer to product datasheet. */ __HAL_RCC_PWR_CLK_ENABLE(); __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE2); // Enable HSE oscillator and activate PLL with HSE as source RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; if (bypass == 0) { RCC_OscInitStruct.HSEState = RCC_HSE_ON; // External 8 MHz xtal on OSC_IN/OSC_OUT } else { RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS; // External 8 MHz clock on OSC_IN } RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLM = HSE_VALUE / 1000000L; // Expects an 8 MHz external clock by default. Redefine HSE_VALUE if not RCC_OscInitStruct.PLL.PLLN = 336; // VCO output clock = 336 MHz (1 MHz * 336) RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4; // PLLCLK = 84 MHz (336 MHz / 4) RCC_OscInitStruct.PLL.PLLQ = 7; // USB clock = 48 MHz (336 MHz / 7) --> OK for USB if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { return 0; // FAIL } // Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 clocks dividers RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2; RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; // 84 MHz RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; // 84 MHz RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2; // 42 MHz RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; // 84 MHz if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) { return 0; // FAIL } /* Output clock on MCO1 pin(PA8) for debugging purpose */ /* if (bypass == 0) HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_HSE, RCC_MCODIV_2); // 4 MHz else HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_HSE, RCC_MCODIV_1); // 8 MHz */ return 1; // OK } /******************************************************************************/ /* PLL (clocked by HSI) used as System clock source */ /******************************************************************************/ uint8_t SetSysClock_PLL_HSI(void) { RCC_OscInitTypeDef RCC_OscInitStruct; RCC_ClkInitTypeDef RCC_ClkInitStruct; /* The voltage scaling allows optimizing the power consumption when the device is clocked below the maximum system frequency, to update the voltage scaling value regarding system frequency refer to product datasheet. */ __HAL_RCC_PWR_CLK_ENABLE(); __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE2); // Enable HSI oscillator and activate PLL with HSI as source RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI | RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSIState = RCC_HSI_ON; RCC_OscInitStruct.HSEState = RCC_HSE_OFF; RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI; RCC_OscInitStruct.PLL.PLLM = 16; // VCO input clock = 1 MHz (16 MHz / 16) RCC_OscInitStruct.PLL.PLLN = 336; // VCO output clock = 336 MHz (1 MHz * 336) RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4; // PLLCLK = 84 MHz (336 MHz / 4) RCC_OscInitStruct.PLL.PLLQ = 7; // USB clock = 48 MHz (336 MHz / 7) --> freq is ok but not precise enough if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { return 0; // FAIL } /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 clocks dividers */ RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2); RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; // 84 MHz RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; // 84 MHz RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2; // 42 MHz RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; // 84 MHz if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) { return 0; // FAIL } /* Output clock on MCO1 pin(PA8) for debugging purpose */ //HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_HSI, RCC_MCODIV_1); // 16 MHz return 1; // OK } WEAK void SystemClock_Config(void) { /* 1- If fail try to start with HSE and external xtal */ if (SetSysClock_PLL_HSE(0) == 0) { /* 2- Try to start with HSE and external clock */ if (SetSysClock_PLL_HSE(1) == 0) { /* 3- If fail start with HSI clock */ if (SetSysClock_PLL_HSI() == 0) { Error_Handler(); } } } /* Output clock on MCO2 pin(PC9) for debugging purpose */ //HAL_RCC_MCOConfig(RCC_MCO2, RCC_MCO2SOURCE_SYSCLK, RCC_MCODIV_4); } #ifdef __cplusplus } #endif