/*
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