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Razvalyaev
2025-02-28 12:32:54 +03:00
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47
AliBoardExample/Core/Inc/gpio.h Normal file
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/**
******************************************************************************
* @file gpio.h
* @brief This file contains all the function prototypes for
* the gpio.c file
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) Puya Semiconductor Co.
* All rights reserved.</center></h2>
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* 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
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __GPIO_H__
#define __GPIO_H__
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private includes ----------------------------------------------------------*/
/* Private defines -----------------------------------------------------------*/
/* Exported variables prototypes ---------------------------------------------*/
/* Exported functions prototypes ---------------------------------------------*/
void MX_GPIO_Init(void);
#ifdef __cplusplus
}
#endif
#endif /* __GPIO_H__ */
/************************ (C) COPYRIGHT Puya *****END OF FILE******************/

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/**
******************************************************************************
* @file main.h
* @author MCU Application Team
* @brief Header for main.c file.
* This file contains the common defines of the application.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) Puya Semiconductor Co.
* All rights reserved.</center></h2>
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* 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
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __MAIN_H
#define __MAIN_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "py32f0xx_hal.h"
/* Private includes ----------------------------------------------------------*/
/* Private defines -----------------------------------------------------------*/
#define GPIO_LED_2 GPIO_PIN_1
#define GPIO_LED_3 GPIO_PIN_5
#define GPIO_LED_4 GPIO_PIN_4
/* Exported variables prototypes ---------------------------------------------*/
/* Exported functions prototypes ---------------------------------------------*/
void APP_ErrorHandler(void);
#ifdef __cplusplus
}
#endif
#endif /* __MAIN_H */
/************************ (C) COPYRIGHT Puya *****END OF FILE******************/

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AliBoardExample/Core/Inc/py32f002b_hal_conf.h Normal file
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/**
******************************************************************************
* @file py32f002b_hal_conf.h
* @author MCU Application Team
* @brief HAL configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) Puya Semiconductor Co.
* All rights reserved.</center></h2>
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* 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
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __PY32F002B_HAL_CONF_H
#define __PY32F002B_HAL_CONF_H
#ifdef __cplusplus
extern "C" {
#endif
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* ########################## Module Selection ############################## */
/**
* @brief This is the list of modules to be used in the HAL driver
*/
#define HAL_MODULE_ENABLED
#define HAL_RCC_MODULE_ENABLED
//#define HAL_ADC_MODULE_ENABLED
//#define HAL_CRC_MODULE_ENABLED
//#define HAL_COMP_MODULE_ENABLED
#define HAL_FLASH_MODULE_ENABLED
#define HAL_GPIO_MODULE_ENABLED
//#define HAL_IWDG_MODULE_ENABLED
//#define HAL_TIM_MODULE_ENABLED
//#define HAL_LPTIM_MODULE_ENABLED
#define HAL_PWR_MODULE_ENABLED
//#define HAL_I2C_MODULE_ENABLED
//#define HAL_UART_MODULE_ENABLED
#define HAL_USART_MODULE_ENABLED
//#define HAL_SPI_MODULE_ENABLED
//#define HAL_EXTI_MODULE_ENABLED
#define HAL_CORTEX_MODULE_ENABLED
/* ########################## Oscillator Values adaptation ####################*/
#if !defined (HSI_VALUE)
#define HSI_VALUE ((uint32_t)24000000) /*!< Value of the Internal oscillator in Hz */
#endif /* HSI_VALUE */
/**
* @brief Adjust the value of External High Speed oscillator (HSE) used in your application.
* This value is used by the RCC HAL module to compute the system frequency
*/
#if !defined (HSE_VALUE)
#define HSE_VALUE ((uint32_t)24000000) /*!< Value of the External oscillator in Hz */
#endif /* HSE_VALUE */
#if !defined (HSE_STARTUP_TIMEOUT)
#define HSE_STARTUP_TIMEOUT ((uint32_t)200) /*!< Time out for HSE start up, in ms */
#endif /* HSE_STARTUP_TIMEOUT */
/**
* @brief Internal Low Speed Internal oscillator (LSI) value.
*/
#if !defined (LSI_VALUE)
#define LSI_VALUE ((uint32_t)32768) /*!< LSI Typical Value in Hz */
#endif /* LSI_VALUE */ /*!< Value of the Internal Low Speed oscillator in Hz
The real value may vary depending on the variations
in voltage and temperature. */
/**
* @brief Adjust the value of External Low Speed oscillator (LSE) used in your application.
* This value is used by the RCC HAL module to compute the system frequency
*/
#if !defined (LSE_VALUE)
#define LSE_VALUE ((uint32_t)32768) /*!< Value of the External oscillator in Hz*/
#endif /* LSE_VALUE */
#if !defined (LSE_STARTUP_TIMEOUT)
#define LSE_STARTUP_TIMEOUT ((uint32_t)5000) /*!< Time out for LSE start up, in ms */
#endif /* LSE_STARTUP_TIMEOUT */
/* Tip: To avoid modifying this file each time you need to use different HSE,
=== you can define the HSE value in your toolchain compiler preprocessor. */
/* ########################### System Configuration ######################### */
/**
* @brief This is the HAL system configuration section
*/
#define VDD_VALUE ((uint32_t)3300) /*!< Value of VDD in mv */
#define PRIORITY_HIGHEST 0
#define PRIORITY_HIGH 1
#define PRIORITY_LOW 2
#define PRIORITY_LOWEST 3
#define TICK_INT_PRIORITY ((uint32_t)PRIORITY_LOWEST) /*!< tick interrupt priority (lowest by default) */
#define USE_RTOS 0
#define PREFETCH_ENABLE 0
/* ########################## Assert Selection ############################## */
/**
* @brief Uncomment the line below to expanse the "assert_param" macro in the
* HAL drivers code
*/
/* #define USE_FULL_ASSERT 1U */
/* Includes ------------------------------------------------------------------*/
/**
* @brief Include module's header file
*/
#ifdef HAL_MODULE_ENABLED
#include "py32f0xx_hal.h"
#endif /* HAL_MODULE_ENABLED */
#ifdef HAL_RCC_MODULE_ENABLED
#include "py32f002b_hal_rcc.h"
#endif /* HAL_RCC_MODULE_ENABLED */
#ifdef HAL_EXTI_MODULE_ENABLED
#include "py32f002b_hal_exti.h"
#endif /* HAL_EXTI_MODULE_ENABLED */
#ifdef HAL_GPIO_MODULE_ENABLED
#include "py32f002b_hal_gpio.h"
#endif /* HAL_GPIO_MODULE_ENABLED */
#ifdef HAL_CORTEX_MODULE_ENABLED
#include "py32f002b_hal_cortex.h"
#endif /* HAL_CORTEX_MODULE_ENABLED */
#ifdef HAL_ADC_MODULE_ENABLED
#include "py32f002b_hal_adc.h"
#endif /* HAL_ADC_MODULE_ENABLED */
#ifdef HAL_CRC_MODULE_ENABLED
#include "py32f002b_hal_crc.h"
#endif /* HAL_CRC_MODULE_ENABLED */
#ifdef HAL_COMP_MODULE_ENABLED
#include "py32f002b_hal_comp.h"
#endif /* HAL_COMP_MODULE_ENABLED */
#ifdef HAL_FLASH_MODULE_ENABLED
#include "py32f002b_hal_flash.h"
#endif /* HAL_FLASH_MODULE_ENABLED */
#ifdef HAL_I2C_MODULE_ENABLED
#include "py32f002b_hal_i2c.h"
#endif /* HAL_I2C_MODULE_ENABLED */
#ifdef HAL_IWDG_MODULE_ENABLED
#include "py32f002b_hal_iwdg.h"
#endif /* HAL_IWDG_MODULE_ENABLED */
#ifdef HAL_PWR_MODULE_ENABLED
#include "py32f002b_hal_pwr.h"
#endif /* HAL_PWR_MODULE_ENABLED */
#ifdef HAL_SPI_MODULE_ENABLED
#include "py32f002b_hal_spi.h"
#endif /* HAL_SPI_MODULE_ENABLED */
#ifdef HAL_TIM_MODULE_ENABLED
#include "py32f002b_hal_tim.h"
#endif /* HAL_TIM_MODULE_ENABLED */
#ifdef HAL_LPTIM_MODULE_ENABLED
#include "py32f002b_hal_lptim.h"
#endif /* HAL_LPTIM_MODULE_ENABLED */
#ifdef HAL_UART_MODULE_ENABLED
#include "py32f002b_hal_uart.h"
#endif /* HAL_UART_MODULE_ENABLED */
#ifdef HAL_USART_MODULE_ENABLED
#include "py32f002b_hal_usart.h"
#endif /* HAL_USART_MODULE_ENABLED */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0U : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0U)
#endif /* USE_FULL_ASSERT */
#ifdef __cplusplus
}
#endif
#endif /* __PY32F002B_HAL_CONF_H */
/************************ (C) COPYRIGHT Puya *****END OF FILE******************/

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/**
******************************************************************************
* @file py32f002b_it.h
* @author MCU Application Team
* @brief This file contains the headers of the interrupt handlers.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) Puya Semiconductor Co.
* All rights reserved.</center></h2>
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* 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
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __PY32F002B_IT_H
#define __PY32F002B_IT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Private includes ----------------------------------------------------------*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions prototypes ---------------------------------------------*/
void NMI_Handler(void);
void HardFault_Handler(void);
void SVC_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
#ifdef __cplusplus
}
#endif
#endif /* __PY32F002B_IT_H */
/************************ (C) COPYRIGHT Puya *****END OF FILE******************/

59
AliBoardExample/Core/Src/gpio.c Normal file
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/**
******************************************************************************
* @file gpio.c
* @brief This file provides code for the configuration
* of all used GPIO pins.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) Puya Semiconductor Co.
* All rights reserved.</center></h2>
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* 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
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "gpio.h"
/* Private define ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private user code ---------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/** Configure pins as
* Analog
* Input
* Output
* EVENT_OUT
* EXTI
*/
void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
/*Configure LED GPIO pin : PA1 PA4 PA5 */
GPIO_InitStruct.Pin = GPIO_PIN_1|GPIO_PIN_4|GPIO_PIN_5;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure KEY GPIO pin : PA3 PA0 */
GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_PULLUP;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}
/************************ (C) COPYRIGHT Puya *****END OF FILE******************/

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AliBoardExample/Core/Src/main.c Normal file
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/**
******************************************************************************
* @file main.c
* @author MCU Application Team
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) Puya Semiconductor Co.
* All rights reserved.</center></h2>
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* 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
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "gpio.h"
/* Private define ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
uint32_t led_delay = 100;
/* Private user code ---------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
static void APP_SystemClockConfig(void);
/**
* @brief Application Entry Function.
* @retval int
*/
int main(void)
{
/* Reset of all peripherals, Initializes the Systick. */
HAL_Init();
/* System clock configuration */
APP_SystemClockConfig();
MX_GPIO_Init();
/* infinite loop */
while (1)
{
// ïî íàæàòèþ êíîïêè äèîäû ïðîáåãàþò "âíèç"
if((GPIOA->IDR & GPIO_PIN_0) == 0)
{
// ïåðåõîä ñ 2 äèîäà íà 4
GPIOA->ODR |= GPIO_LED_2;
GPIOA->ODR &= ~GPIO_LED_4;
HAL_Delay(led_delay);
// ïåðåõîä ñ 4 äèîäà íà 3
GPIOA->ODR |= GPIO_LED_4;
GPIOA->ODR &= ~GPIO_LED_3;
HAL_Delay(led_delay);
// ïåðåõîä ñ 3 äèîäà íà 2
GPIOA->ODR |= GPIO_LED_3;
GPIOA->ODR &= ~GPIO_LED_2;
HAL_Delay(led_delay);
}
// ïî íàæàòèþ êíîïêè äèîäû ïðîáåãàþò "ââåðõ"
else if ((GPIOA->IDR & GPIO_PIN_3) == 0)
{
// ïåðåõîä ñ 4 äèîäà íà 2
GPIOA->ODR |= GPIO_LED_4;
GPIOA->ODR &= ~GPIO_LED_2;
HAL_Delay(led_delay);
// ïåðåõîä ñ 2 äèîäà íà 3
GPIOA->ODR |= GPIO_LED_2;
GPIOA->ODR &= ~GPIO_LED_3;
HAL_Delay(led_delay);
// ïåðåõîä ñ 3 äèîäà íà 4
GPIOA->ODR |= GPIO_LED_3;
GPIOA->ODR &= ~GPIO_LED_4;
HAL_Delay(led_delay);
}
else
{
// âûêëþ÷åíèå âñåõ äèîäîâ
HAL_GPIO_WritePin(GPIOA, GPIO_LED_2|GPIO_LED_3|GPIO_LED_4, GPIO_PIN_SET);
}
}
}
/**
* @brief System clock configuration function
* @param None
* @retval None
*/
static void APP_SystemClockConfig(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/* Oscillator configuration */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_HSI | RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_LSE; /* Select oscillator HSE, HSI, LSI, LSE */
RCC_OscInitStruct.HSIState = RCC_HSI_ON; /* Enable HSI */
RCC_OscInitStruct.HSIDiv = RCC_HSI_DIV1; /* HSI 1 frequency division */
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_24MHz; /* Configure HSI clock 24MHz */
RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS_DISABLE; /* Close HSE bypass */
RCC_OscInitStruct.LSIState = RCC_LSI_OFF; /* Close LSI */
/*RCC_OscInitStruct.LSICalibrationValue = RCC_LSICALIBRATION_32768Hz;*/
RCC_OscInitStruct.LSEState = RCC_LSE_OFF; /* Close LSE */
/*RCC_OscInitStruct.LSEDriver = RCC_LSEDRIVE_MEDIUM;*/
/* Configure oscillator */
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
APP_ErrorHandler();
}
/* Clock source configuration */
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1; /* Choose to configure clock HCLK, SYSCLK, PCLK1 */
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSISYS; /* Select HSISYS as the system clock */
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; /* AHB clock 1 division */
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1; /* APB clock 1 division */
/* Configure clock source */
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
APP_ErrorHandler();
}
}
/**
* @brief Error executing function.
* @param None
* @retval None
*/
void APP_ErrorHandler(void)
{
while (1)
{
}
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* Users can add their own printing information as needed,
for example: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif /* USE_FULL_ASSERT */
/************************ (C) COPYRIGHT Puya *****END OF FILE******************/

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/**
******************************************************************************
* @file py32f002b_hal_msp.c
* @author MCU Application Team
* @brief This file provides code for the MSP Initialization
* and de-Initialization codes.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) Puya Semiconductor Co.
* All rights reserved.</center></h2>
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* 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
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* External functions --------------------------------------------------------*/
/**
* @brief Initialize global MSP.
*/
void HAL_MspInit(void)
{
__HAL_RCC_SYSCFG_CLK_ENABLE();
__HAL_RCC_PWR_CLK_ENABLE();
}
/************************ (C) COPYRIGHT Puya *****END OF FILE******************/

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/**
******************************************************************************
* @file py32f002b_it.c
* @author MCU Application Team
* @brief Interrupt Service Routines.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) Puya Semiconductor Co.
* All rights reserved.</center></h2>
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* 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
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "py32f002b_it.h"
/* Private includes ----------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private user code ---------------------------------------------------------*/
/* External variables --------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M0+ Processor Interruption and Exception Handlers */
/******************************************************************************/
/**
* @brief This function handles Non maskable interrupt.
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard fault interrupt.
*/
void HardFault_Handler(void)
{
while (1)
{
}
}
/**
* @brief This function handles System service call via SWI instruction.
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Pendable request for system service.
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles System tick timer.
*/
void SysTick_Handler(void)
{
HAL_IncTick();
}
/******************************************************************************/
/* PY32F002B Peripheral Interrupt Handlers */
/* Add here the Interrupt Handlers for the used peripherals. */
/* For the available peripheral interrupt handler names, */
/* please refer to the startup file. */
/******************************************************************************/
/************************ (C) COPYRIGHT Puya *****END OF FILE******************/

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/**
******************************************************************************
* @file system_py32f002b.c
* @author MCU Application Team
* @Version V1.0.0
* @Date 2020-10-19
* @brief CMSIS Cortex-M0+ Device Peripheral Access Layer System Source File.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) Puya Semiconductor Co.
* All rights reserved.</center></h2>
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* 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
*
******************************************************************************
*/
#include "py32f0xx.h"
#if !defined (HSE_VALUE)
#define HSE_VALUE 24000000U /*!< Value of the External oscillator in Hz */
#endif /* HSE_VALUE */
#if !defined (HSI_VALUE)
#define HSI_VALUE 24000000U /*!< Value of the Internal oscillator in Hz*/
#endif /* HSI_VALUE */
#if !defined (LSI_VALUE)
#define LSI_VALUE 32768U /*!< Value of LSI in Hz*/
#endif /* LSI_VALUE */
#if !defined (LSE_VALUE)
#define LSE_VALUE 32768U /*!< Value of LSE in Hz*/
#endif /* LSE_VALUE */
/************************* Miscellaneous Configuration ************************/
/*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */
/* #define FORBID_VECT_TAB_MIGRATION */
/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
This value must be a multiple of 0x100. */
/******************************************************************************/
/*----------------------------------------------------------------------------
Clock Variable definitions
*----------------------------------------------------------------------------*/
/* This variable is updated in three ways:
1) by calling CMSIS function SystemCoreClockUpdate()
2) by calling HAL API function HAL_RCC_GetHCLKFreq()
3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
Note: If you use this function to configure the system clock; then there
is no need to call the 2 first functions listed above, since SystemCoreClock
variable is updated automatically.
*/
uint32_t SystemCoreClock = HSI_VALUE;
const uint32_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
const uint32_t APBPrescTable[8] = {0, 0, 0, 0, 1, 2, 3, 4};
#if defined(RCC_HSI48M_SUPPORT)
const uint32_t HSIFreqTable[8] = {0U, 0U, 0U, 0U, 24000000U, 48000000U, 0U, 0U};
#else
const uint32_t HSIFreqTable[8] = {0U, 0U, 0U, 0U, 24000000U, 0U, 0U, 0U};
#endif
/* Private function prototypes -----------------------------------------------*/
#ifndef SWD_DELAY
static void DelayTime(uint32_t mdelay);
#endif /* SWD_DELAY */
/**
* @brief Clock functions.
* @param none
* @return none
*/
void SystemCoreClockUpdate(void) /* Get Core Clock Frequency */
{
uint32_t tmp;
uint32_t hsidiv;
uint32_t hsifs;
/* Get SYSCLK source -------------------------------------------------------*/
switch (RCC->CFGR & RCC_CFGR_SWS)
{
case RCC_CFGR_SWS_0: /* HSE used as system clock */
SystemCoreClock = HSE_VALUE;
break;
case (RCC_CFGR_SWS_1 | RCC_CFGR_SWS_0): /* LSI used as system clock */
SystemCoreClock = LSI_VALUE;
break;
#if defined(RCC_LSE_SUPPORT)
case RCC_CFGR_SWS_2: /* LSE used as system clock */
SystemCoreClock = LSE_VALUE;
break;
#endif /* RCC_LSE_SUPPORT */
case 0x00000000U: /* HSI used as system clock */
default: /* HSI used as system clock */
hsifs = ((READ_BIT(RCC->ICSCR, RCC_ICSCR_HSI_FS)) >> RCC_ICSCR_HSI_FS_Pos);
hsidiv = (1UL << ((READ_BIT(RCC->CR, RCC_CR_HSIDIV)) >> RCC_CR_HSIDIV_Pos));
SystemCoreClock = (HSIFreqTable[hsifs] / hsidiv);
break;
}
/* Compute HCLK clock frequency --------------------------------------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> RCC_CFGR_HPRE_Pos)];
/* HCLK clock frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Setup the microcontroller system.
* Initialize the System.
* @param none
* @return none
*/
void SystemInit(void)
{
/*Set the HSI clock to 24MHz by default*/
RCC->ICSCR = (RCC->ICSCR & 0xFFFF0000) | (*(uint32_t *)(0x1FFF0100));
/*Set the LSI clock to 32.768KHz by default*/
RCC->ICSCR = (RCC->ICSCR & 0xFE00FFFF) | ((*(uint32_t *)(0x1FFF0144)) << RCC_ICSCR_LSI_TRIM_Pos);
/* Configure the Vector Table location add offset address ------------------*/
#ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif /* VECT_TAB_SRAM */
#ifndef SWD_DELAY
/* When the SWD pin is reused for other functions, this function is used to solve the
problem of not being able to update the code. */
DelayTime(100);
#endif /* SWD_DELAY */
}
#ifndef SWD_DELAY
/**
* @brief This function provides delay (in milliseconds) based on CPU cycles method.
* @param mdelay: specifies the delay time length, in milliseconds.
* @retval None
*/
static void DelayTime(uint32_t mdelay)
{
__IO uint32_t Delay = mdelay * (24000000U / 8U / 1000U);
do
{
__NOP();
}
while (Delay --);
}
#endif /* SWD_DELAY */
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