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- /*
- 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
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