/**
  ******************************************************************************
  * @file    tim.c 
  * @author  Jerry
  * @version V2.1
  * @date    19-April-2022
  * @brief   tim program body.
  ******************************************************************************
  * @attention
  *
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "global.h"


#define  CAN_MON_CNT  1000 //1000*10ms = 10s

CanTxMsg TxMessage[20];
CanRxMsg RxMessage;
uint8_t  TxMailBox[20];
uint8_t  CAN_SendCount;
uint16_t CAN_MoniCount;

CAN_MEMORY canMem[AddrMax+2];


//HSE --> PLL倍频到72M  --> APB1 2分频到36M
void uf_CAN1_Init(void)
{
	GPIO_InitTypeDef         GPIO_InitStructure;
	CAN_InitTypeDef          CAN_InitStructure;
	CAN_FilterInitTypeDef    CAN_FilterInitStructure;
	NVIC_InitTypeDef         NVIC_InitStructure;
	
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO | RCC_APB2Periph_GPIOA, ENABLE);
	RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1, ENABLE);
	
	//Config CAN pin : RX
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
	//GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init(GPIOA, &GPIO_InitStructure);
	
	//Config CAN pin : TX
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init(GPIOA, &GPIO_InitStructure);
	
	//NVIC
	NVIC_InitStructure.NVIC_IRQChannel = USB_LP_CAN1_RX0_IRQn;
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; //CAN通信 优先级：1,0
	NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
	NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;	
	NVIC_Init(&NVIC_InitStructure);
	
	//彻底复位CAN外设：先禁用，再重新使能，确保完全复位
	RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1, DISABLE);
	delay_ms(1);
	RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1, ENABLE);
	
	//控制器配置
	CAN_DeInit(CAN1);
	CAN_StructInit(&CAN_InitStructure);	
	CAN_InitStructure.CAN_TTCM = DISABLE;	//时间触发通信模式
	CAN_InitStructure.CAN_ABOM = DISABLE; //自动离线管理
	CAN_InitStructure.CAN_AWUM = DISABLE; //自动唤醒
	CAN_InitStructure.CAN_NART = ENABLE;  //自动重传 改启用
	CAN_InitStructure.CAN_RFLM = DISABLE; //FIFO锁定
	CAN_InitStructure.CAN_TXFP = DISABLE; //发送FIFO优先级
	CAN_InitStructure.CAN_Mode = CAN_Mode_Normal; //普通模式
	//波特率配置
	CAN_InitStructure.CAN_SJW = CAN_SJW_1tq;
	CAN_InitStructure.CAN_BS1 = CAN_BS1_6tq;
	CAN_InitStructure.CAN_BS2 = CAN_BS2_2tq;
	if(protocol == 7) //MUST协议的波特率是100k
	{
			CAN_InitStructure.CAN_Prescaler = 40;     //36MHz/40/(1+6+2)=100kbs
	}
	else //其他协议是500k
	{
			CAN_InitStructure.CAN_Prescaler = 8;     //36MHz/8/(1+6+2)=500kbs
	}
	CAN_Init(CAN1, &CAN_InitStructure);
	
	//过滤器配置
	CAN_FilterInitStructure.CAN_FilterNumber = 0;                    //选择过滤器0
	CAN_FilterInitStructure.CAN_FilterMode = CAN_FilterMode_IdMask;  //标识符屏蔽模式
	CAN_FilterInitStructure.CAN_FilterScale = CAN_FilterScale_32bit; //过滤器位宽32位
	CAN_FilterInitStructure.CAN_FilterIdHigh = 0;
	CAN_FilterInitStructure.CAN_FilterIdLow = 0;
	CAN_FilterInitStructure.CAN_FilterMaskIdHigh = 0;
	CAN_FilterInitStructure.CAN_FilterMaskIdLow = 0;
	CAN_FilterInitStructure.CAN_FilterFIFOAssignment = CAN_FilterFIFO0;
	CAN_FilterInitStructure.CAN_FilterActivation = ENABLE;	
	CAN_FilterInit(&CAN_FilterInitStructure);
	
	//中断配置
	CAN_ITConfig(CAN1,CAN_IT_FMP0,ENABLE); //FIFO0中有消息允许中断
	
	//清除所有可能的错误标志
	CAN1->ESR = 0;                    // 清除错误状态寄存器
	CAN1->MSR &= ~(CAN_MSR_ERRI);     // 清除错误中断标志
	
	//更新倒计时数
	CAN_MoniCount = CAN_MON_CNT;
}

void USB_LP_CAN1_RX0_IRQHandler(void)
{
	//处理接收中断
	if(CAN_GetITStatus(CAN1, CAN_IT_FMP0) != RESET)
	{
		//接收报文
		CAN_Receive(CAN1,CAN_FIFO0,&RxMessage);
		
		if(RxMessage.StdId == 0x305)
		{
			RxMessage.StdId = 0;
			CAN_MoniCount = CAN_MON_CNT;
			
			if(sleep_flag == 1)
			{
				//CAN网口收到数据，退出休眠且更新计时起点
				sleep_flag = 0;
				SLEEP_Refresh();
				SLEEP2_Refresh();
			}
		}
	}
}

void CAN_TIM_Moni(void)
{
	CAN_MoniCount--;
	if(CAN_MoniCount == 0)
	{
		uf_CAN1_Init();
	}
}

/*
	1."Sol-Ark",		2."GoodWe",		30."Megarevo",		12."Pylon",
	11."Deye",			7."MUST",			37."solis",				3."Growatt",
	4."Aiswei",			35."Afore",		27."Victron",			6."Sorotec",
	
	5."SMA",				39."Sunways",	23."Luxpower",		24."Schneider",
	40."AlpSolarr",	13."SRNE",		14."Voltronic",		32."COSUPER",
	17."SMK",				31."SAKO",		18."SNADI",				21."invt",
*/
void CAN_UpdateData(void)
{
	//第1页:
	if(protocol == 1)					CAN_Protocol_SolArk();
//	else if(protocol == 2)		CAN_Protocol_GoodWe();
//	else if(protocol == 30)		CAN_Protocol_Megarevo();
	else if(protocol == 12)		CAN_Protocol_Pylon();
	else if(protocol == 11)		CAN_Protocol_Deye();
//	else if(protocol == 7)		CAN_Protocol_MUST();
	else if(protocol == 37)		CAN_Protocol_solis();
	else if(protocol == 3)		CAN_Protocol_Growatt();
//	else if(protocol == 4)		CAN_Protocol_Aiswei();
//	else if(protocol == 35)   CAN_Protocol_Afore();
//	else if(protocol == 27)		CAN_Protocol_Victron();
//	else if(protocol == 6)		CAN_Protocol_Sorotec();
	
	//第2页:
//	else if(protocol == 5)		CAN_Protocol_SMA();
//	else if(protocol == 39)		CAN_Protocol_Sunways();
//	else if(protocol == 23)		CAN_Protocol_Luxpower();
//	else if(protocol == 24)		CAN_Protocol_Schneider();
//	else if(protocol == 40)		CAN_Protocol_AlpSolarr();
}

//CAN报文发送函数
void CAN1_SendData(uint32_t Id, uint8_t *data)
{
	uint16_t  can_timeout;
	can_timeout = CAN_TIMEOUT_COUNT;
	
	if(Id < 0x1000)
	{
		TxMessage[CAN_SendCount].StdId = Id;       //ID
		TxMessage[CAN_SendCount].IDE = CAN_ID_STD; //标准ID
	}
	else
	{
		TxMessage[CAN_SendCount].ExtId = Id;       //ID
		TxMessage[CAN_SendCount].IDE = CAN_ID_EXT; //扩展ID
	}
	TxMessage[CAN_SendCount].RTR = CAN_RTR_DATA; //数据帧
	TxMessage[CAN_SendCount].DLC = 8;
	TxMessage[CAN_SendCount].Data[0] = data[0];
	TxMessage[CAN_SendCount].Data[1] = data[1];
	TxMessage[CAN_SendCount].Data[2] = data[2];
	TxMessage[CAN_SendCount].Data[3] = data[3];
	TxMessage[CAN_SendCount].Data[4] = data[4];
	TxMessage[CAN_SendCount].Data[5] = data[5];
	TxMessage[CAN_SendCount].Data[6] = data[6];
	TxMessage[CAN_SendCount].Data[7] = data[7];	
	TxMailBox[CAN_SendCount] = CAN_Transmit(CAN1, &TxMessage[CAN_SendCount]);  //发送，返回当前邮箱号
	while(CAN_TransmitStatus(CAN1,TxMailBox[CAN_SendCount]) != CANTXOK) //等待发送完成
	{
		if((can_timeout--) == 0) return;
	}
	
	CAN_SendCount++;
}