/**
  ******************************************************************************
  * @file    py32f420_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) 2023 Puya Semiconductor Co.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by Puya 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
  *
  ******************************************************************************
  * @attention
  *
  * <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 -----------------------------------------------------------*/
DMA_HandleTypeDef  hdma_tim;

/* 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();
}

/**
  * @brief Initialize TIM1 related MSP
  */
void HAL_TIM_Base_MspInit(TIM_HandleTypeDef *htim)
{
  /* Enable DMA clock */
  __HAL_RCC_DMA_CLK_ENABLE();
  /* Enable TIM1 clock */
  __HAL_RCC_TIM1_CLK_ENABLE();
  /* Enable SYSCFG clock */
  __HAL_RCC_SYSCFG_CLK_ENABLE();

  hdma_tim.Instance = DMA_Channel1;                          /* Select DMA channel 1 */
  hdma_tim.Init.Direction = DMA_MEMORY_TO_PERIPH;            /* Memory to peripheral direction */
  hdma_tim.Init.PeriphInc = DMA_PADDR_FIX;                   /* Peripheral address fixed mode */
  hdma_tim.Init.MemInc = DMA_MADDR_INC;                      /* Memory address increment mode */
  hdma_tim.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD ;  /* Peripheral data alignment : Word */
  hdma_tim.Init.MemDataAlignment = DMA_MDATAALIGN_WORD ;     /* Memory data alignment : Word */
  hdma_tim.Init.Mode = DMA_FINITE_CIRCULAR;                  /* Finite Circular Mode */
  hdma_tim.Init.PeriphReload = DMA_PRELOAD_DISABLE;          /* Peripheral address reload disable */
  hdma_tim.Init.MemReload = DMA_MRELOAD_DISABLE;             /* Memory address reload disable */
  hdma_tim.Init.BlockLen = 3;                                /* Length of each block : 3 */
  hdma_tim.Init.Priority = DMA_PRIORITY_3;                   /* Priority level : 3 */
  hdma_tim.Init.TransMode = DMA_TRANSFER_BULK;               /* DMA Transfer Mode : bulk transfer */
  HAL_NVIC_SetPriority(TIM1_UP_IRQn, 0, 0);      /* Set the interrupt priority */
  HAL_NVIC_EnableIRQ(TIM1_UP_IRQn);              /* Enable TIM1 interrupt */
  
  /* DMA1_MAP select TIM1_UP */
  HAL_DMA_ChannelMap(&hdma_tim,DMA_CHANNEL_MAP_TIM1_UP); 
  /* DMA1 associated TIM_UP event */
  __HAL_LINKDMA(htim, hdma[TIM_DMA_ID_UPDATE], hdma_tim);
  /* Initialize DMA */
  HAL_DMA_Init(htim->hdma[TIM_DMA_ID_UPDATE]);
}

/************************ (C) COPYRIGHT Puya *****END OF FILE******************/
