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/*
*********************************************************************************************************
*                                              rx32h6xx
*                                           Library Function
*
*                                   Copyright 2024, RX Tech, Corp.
*                                        All Rights Reserved
*
*
* Project      : rx32h6xx
* File         : main.c
* By           : RX_SD_Team
* Version      : V1.0.0
* Description  : Only rx32h6xx
*********************************************************************************************************
*/
#include "main.h"

/*
*********************************************************************************************************
*                                           Global macro/Structure
*********************************************************************************************************
*/

#define ADC_convert_frequency	 	20   											//ADC ����Ƶ�� �� 20 kHz

#define TIM_PSC 								151												//TIM8 ��Ƶϵ��
#define F_TIM8 									152000000/(TIM_PSC+1)			//TIM8 ʱ��Ƶ��
#define TIM_ARR 								F_TIM8/(ADC_convert_frequency*1000)		//����װ��ֵ
#define TIM_CCR 								TIM_ARR/2

/*
*********************************************************************************************************
*                                             Global variable
*********************************************************************************************************
*/

uint32_t  DataArray[ArrayLength] = {0};
uint32_t  j = 0;
uint32_t 	Data_Array_empty = 0;
/*
*********************************************************************************************************
*                                           Global Function declaration
*********************************************************************************************************
*/



void Delay_us( uint32_t us )
{
  uint32_t Fsys;
	Fsys=RCC_Get_SystemClock()/1000000;
	//maximum:199728us 
	if( us*Fsys > SysTick_LOAD_RELOAD_Msk ) return;
	SysTick->CTRL = 0;      //Disable SysTick
	SysTick->LOAD = Fsys*us;//Set count number:72*us, 72 means 1us when SystemCoreClock is 72MHz
	SysTick->VAL  = 0;      //Clear current count number and count flag
	SysTick->CTRL = 5;      //Enable SysTick and Select SystemCoreClock as SysTick clock source
	while((SysTick->CTRL&0x10000)==0);//Wait for count flag set
	SysTick->CTRL = 0;      //Disable SysTick
}

void Delay_ms( uint32_t ms )
{
	uint32_t i;
	for(i=ms;i>0;i--)
	{
		Delay_us(1000);
	}
}

void SystemClock_Config(void)
{
	// set flash lantency
	FLASH_Set_Latency(FLASH_Latency_3);
	
  RCC_Enable_HSI();
  while(RCC_Get_HSIRDY() != 1)
  {
  }
  RCC_Set_PLLMUL(RCC_CFGR_PLLMUL_19x);
  RCC_Enable_PLL();
  while(RCC_Get_PLLRDY() != 1)
  {
  }
  RCC_Set_AHBPrescaler(RCC_CFGR_HPRE_DIV1);
  RCC_Set_APB1Prescaler(RCC_CFGR_PPRE1_DIV2);
  RCC_Set_APB2Prescaler(RCC_CFGR_PPRE2_DIV1);
  RCC_Set_SysClkSource(RCC_CFGR_SW_PLL);
  while(RCC_Get_SysClkSource() != RCC_CFGR_SWS_PLL)
  {
  }
  RCC_Set_ADCClkSource(RCC_CFGR_ADCCLK_SEL_PLL2);
  RCC_Set_ADCPrescaler(RCC_CFGR_ADCPRE_DIV5);
}

void ADC_GPIO_Init(void)
{
	RCC_Enable_AHBClock(RCC_AHBENR_IOPCEN);
	
  GPIO_InitTypeDef  GPIO_InitStruct = {0};
  GPIO_InitStruct.Mode 				= GPIO_MODE_ANALOG;
  GPIO_InitStruct.Pull 				= GPIO_PUPDR_Floating;
  GPIO_InitStruct.Speed 			= GPIO_OSPEEDR_High;
	GPIO_InitStruct.Alternate 	= GPIO_AF0;
	
  GPIO_InitStruct.Pin = GPIO_PIN_2;											//PC2    ADC channel 2
  GPIO_Init(GPIOC,&GPIO_InitStruct);
}

void ADC_Init(ADC_TypeDef *ADCx, uint32_t Channel, uint32_t SamplingTime, uint32_t TriggerSource)
{
	RCC_Enable_AHBClock(RCC_AHBENR_ADC1EN);
	ADC_GPIO_Init();
	
	ADC_Inj_InitTypeDef  ADC_Inj_InitStruct = {0};
	ADC_INJ_RankInitTypeDef  ADC_INJ_RankInitStruct = {0};
	
	ADC_Inj_InitStruct.TriggerSource  	 					= TriggerSource;
	ADC_Inj_InitStruct.ScanMode    								= ADC_CR1_SCAN_DISABLE;
	ADC_Inj_InitStruct.DataAlignment 							= ADC_CR2_ALIGN_RIGHT;
	ADC_Inj_InitStruct.TrigAuto  									= ADC_CR1_JAUTO_INDEPENDENT;
	ADC_Inj_InitStruct.AnalogWatchDog 						= ADC_CR1_AWD_DISABLE;
	ADC_Inj_InitStruct.AWDChannelGroup						= ADC_AWD_DISABLE;
	ADC_Inj_InitStruct.InjectDiscont							=	ADC_CR1_JDISCEN_DISABLE;
	ADC_Inj_InitStruct.EOCOption									= ADC_EOC_OPT_DISABLE;
	ADC_Inj_Init(ADC1, &ADC_Inj_InitStruct);
	
	ADC_INJ_RankInitStruct.Length 								= ADC_JSQRL_SCAN_1RANK;
	ADC_INJ_RankInitStruct.Rank[0].Channel  			= Channel;
	ADC_INJ_RankInitStruct.Rank[0].SamplingTime   = SamplingTime;
	ADC_INJ_RankInit(ADC1, &ADC_INJ_RankInitStruct);
	
	
	NVIC_SetPriority(ADC_IRQn, 1);			//�����ж����ȼ�
	NVIC_EnableIRQ(ADC_IRQn);						//ʹ�� ADC �ж�
  
  /* Enable ADC */
  ADC_Enable_ADON(ADCx);
	
	Delay_us(200);

	/* Run ADC self calibration */
	ADC_Trig_CAL(ADCx);
	while (ADC_Get_CAL(ADCx) != 0);

	
	ADC_Enable_IT(ADC1,ADC_CR1_JEOCIE);
	
	
	/* Clear flag ADC group regular end of unitary conversion */
	ADC_Clear_SR(ADCx,ADC_SR_JEOC);
	

	/*wait flag ADC group regular end of unitary conversion */
	while (ADC_Get_SR(ADCx,ADC_SR_EOC) == 0);
	
  /* Disable ADC */
  //ADC_Disable_ADON(ADCx);
}


void UART2_Init_Async( uint32_t baudrate )     // UART2  initial
{
	//PD4  -> UART2_RX
	//PD5  -> UART2_TX
	
	GPIO_InitTypeDef GPIO_InitStruct  = {0};
	UART_InitTypeDef UART_InitStruct = {0};
	
	RCC_Enable_AHBClock(RCC_AHBENR_IOPDEN);
	RCC_Enable_APB1Clock(RCC_APB1ENR_UART2EN);

	UART_InitStruct.BaudRate             = baudrate;
	UART_InitStruct.DataWidth            = UART_DATAWIDTH_8B;
	UART_InitStruct.Parity               = UART_PARITY_NONE;
	UART_InitStruct.StopBits             = UART_STOPBITS_1;
	UART_InitStruct.TransferDirection    = UART_DIRECTION_TX_RX;
	UART_Init(UART2,&UART_InitStruct);

	GPIO_InitStruct.Alternate = GPIO_AF5;
	GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
	GPIO_InitStruct.Pull      = GPIO_PUPDR_Pullup;
	GPIO_InitStruct.Speed     = GPIO_OSPEEDR_High;
	GPIO_InitStruct.Pin       = GPIO_PIN_4;
	GPIO_Init(GPIOD, &GPIO_InitStruct);
	
	GPIO_InitStruct.Alternate = GPIO_AF5;
	GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
	GPIO_InitStruct.Pull      = GPIO_PUPDR_Floating;
	GPIO_InitStruct.Speed     = GPIO_OSPEEDR_High;
	GPIO_InitStruct.Pin       = GPIO_PIN_5;
	GPIO_Init(GPIOD, &GPIO_InitStruct);

	UART_Enable(UART2);
}

	
void TIM8_GPIO_Config(void)
{
	GPIO_InitTypeDef        GPIO_InitStruct = {0};
	GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
	GPIO_InitStruct.Pull = GPIO_PUPDR_Floating;
	GPIO_InitStruct.Speed = GPIO_OSPEEDR_High;
	
	GPIO_InitStruct.Alternate = GPIO_AF1;
	GPIO_InitStruct.Pin = GPIO_PIN_3;											//PD3(AF1)    TIM8CH1
	GPIO_Init(GPIOD,&GPIO_InitStruct);
}
	
	
void TIM_Init(TIM_TypeDef *TIMx, uint16_t psc, uint16_t arr, uint16_t ccr)
{
	RCC_Enable_APB2Clock(RCC_APB2ENR_TIM8EN);
	TIM8_GPIO_Config();

	//SET CNT BASE
	TIM_Set_CounterMode(TIMx,TIM_COUNTERMODE_UP);
	
	TIM_Set_AutoReload(TIMx,arr);
	TIM_Set_Prescaler(TIMx,psc);
	
	TIM_Disable_ARRPreload(TIMx);
	TIM_Set_ClockSource(TIMx,TIM_CLOCKSOURCE_INTERNAL);

	//SET Channel output 
	TIM_Set_OC_Mode(TIMx,TIM_CHANNEL_CH1,TIM_OCMODE_PWM1);

	TIM_Set_OC_CompareCH1(TIMx,ccr/12);  
 
	TIM_Enable_CC_Channel(TIMx,TIM_CHANNEL_CH1);    

	TIM_Set_TriggerOutput(TIMx, TIM_TRGO_UPDATE);
	
	//SET interruppt

	TIM_Enable_IT(TIMx,TIM_DIER_UIE);
	TIM_Enable_IT(TIMx,TIM_DIER_CC1IE);

	TIM_Set_GenerateEvent(TIMx,TIM_EGR_UG);
	TIM_Clear_Flag(TIMx,TIM_SR_UIF);
	
	TIM_Enable_MOE(TIMx);
	TIM_Enable_CEN(TIMx);

}

void convert_result_print(void)
{
	int array_num = 0;
	while(array_num<ArrayLength)
	{
		printf("convert channel %d result is 0x%x\r\n",ADC_CHANNEL_2&0x1F, DataArray[array_num]);
		array_num++;
	}
	printf("\r\n");
}

int main(void)
{  
	SystemClock_Config();
	UART2_Init_Async(115200);
	TIM_Init(TIM8, TIM_PSC, TIM_ARR, TIM_CCR); 
	ADC_Init(ADC1,ADC_CHANNEL_2,ADC_SAMPLINGTIME_2p5CYCLES,ADC_CR2_JEXTSEL_TIM8_TRGO1);

	while(1)
	{
		if(Data_Array_empty == 0)
		{
			ADC_Enable_IT(ADC1,ADC_CR1_JEOCIE);
			convert_result_print();
			Data_Array_empty = 1;
		}
	}
}
