/*********************************************************************************************************
* Module   : Uart.c
* Abstract : Uart modules,uart be used to read data from hlw8110. This file content IRQ of usart and 
*            ch448f code!
* Version  : 1.0.0
* Author   : Leopul(COPYRIGHT 2025 - 2027 Leopul. All rights reserved.)
* Complete : 2025-02-16
* Content  : None
* Note     : None
*********************************************************************************************************/

#include "Uart1.h"
#include "gd32e230x_conf.h"
#include "SysTick.h"



#define UART1_BUF_SIZE 10       

#define XEN GPIO_PIN_4
#define YEN GPIO_PIN_5


#define SEL0 GPIO_PIN_6
#define SEL1 GPIO_PIN_7
#define SEL2 GPIO_PIN_12


#define SEL1_H 					gpio_bit_set(GPIOA, SEL1)
#define SEL1_L					gpio_bit_reset(GPIOA, SEL1)


#define SEL2_H 					gpio_bit_set(GPIOB, SEL2)
#define SEL2_L					gpio_bit_reset(GPIOB, SEL2)


#define SEL0_H 					gpio_bit_set(GPIOA, SEL0)
#define SEL0_L					gpio_bit_reset(GPIOA, SEL0)


extern unsigned char	u8_TxBuf[UART1_BUF_SIZE]; 
extern unsigned char	u8_RxBuf[UART1_BUF_SIZE];
extern unsigned char	u8_TX_Length;
extern unsigned char	u8_RX_Length;
extern unsigned char	u8_RX_Index;
extern unsigned char	B_Rx_Data_ING;					
extern unsigned char	B_Rx_Finish;

                                                                               
 

/*********************************************************************************************************
* 函数名称：ConfigCH448FGPIO
* 函数功能：配置CH448F的切换GPIO 
* 输入参数：void 
* 输出参数：void
* 返 回 值：void
* 创建日期：2021年07月01日
* 注    意：真值表
*						XEN# YEN# SEL2 SEL1 SEL0      AX         AY
*							0   0     0   0    0     选择A0X    选择A0Y    实际是4
*							0   0     0   0    1     选择A1X    选择A1Y    实际是3
*							0   0     0   1    0     选择A2X    选择A2Y    实际是2
*							0   0     0   1    1     选择A3X    选择A3Y    实际是1
*							0   0     1   0    0     选择A4X    选择A4Y    实际是8
*							0   0     1   0    1     选择A5X    选择A5Y		 实际是7
*							0   0     1   1    0     选择A6X    选择A6Y    实际是6
*							0   0     1   1    1     选择A7X    选择A7Y    实际是5
*							1   1     X   X    X     全部断开   全部断开
*********************************************************************************************************/
static void ConfigCH448FGPIO(void)
{

  rcu_periph_clock_enable(RCU_GPIOA);   
	rcu_periph_clock_enable(RCU_GPIOB); 
	
  gpio_mode_set(GPIOA, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, XEN);          
  gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, XEN); 
  gpio_bit_reset(GPIOA, XEN);                                              
	
	gpio_mode_set(GPIOA, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, YEN);           
  gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, YEN); 
  gpio_bit_reset(GPIOA, YEN);                                              
	
	gpio_mode_set(GPIOA, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, SEL0);           
  gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, SEL0);
  gpio_bit_reset(GPIOA, SEL0);                                            
	
	gpio_mode_set(GPIOA, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, SEL1);           
  gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, SEL1); 
  gpio_bit_reset(GPIOA, SEL1);                                            
	                                       		   
	gpio_mode_set(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, SEL2);           			
  gpio_output_options_set(GPIOB, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, SEL2); 			
  gpio_bit_reset(GPIOB, SEL2);                                            			
	
}

static void ConfigUART1(unsigned int bound)
{
  nvic_irq_enable(USART1_IRQn, 2);     
  rcu_periph_clock_enable(RCU_GPIOA);  


  gpio_af_set(GPIOA, GPIO_AF_1, GPIO_PIN_2);  
  gpio_mode_set(GPIOA, GPIO_MODE_AF, GPIO_PUPD_PULLUP, GPIO_PIN_2);
  gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_10MHZ, GPIO_PIN_2);
  
  gpio_af_set(GPIOA, GPIO_AF_1, GPIO_PIN_3);  
  gpio_mode_set(GPIOA, GPIO_MODE_AF, GPIO_PUPD_PULLUP, GPIO_PIN_3);
  gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_10MHZ, GPIO_PIN_3);

 
  rcu_periph_clock_enable(RCU_USART1);                  
  usart_deinit(USART1);                                
  usart_baudrate_set(USART1, bound);                    
  usart_stop_bit_set(USART1,USART_STB_1BIT);            
  usart_word_length_set(USART1,USART_WL_9BIT);          
  usart_parity_config(USART1,USART_PM_EVEN);            
  usart_receive_config(USART1, USART_RECEIVE_ENABLE);   
  usart_transmit_config(USART1, USART_TRANSMIT_ENABLE); 
  usart_enable(USART1);                                 
  usart_interrupt_enable(USART1, USART_INT_RBNE);  			
	
}


void USART1_IRQHandler(void)            
{
  if(usart_interrupt_flag_get(USART1, USART_INT_FLAG_RBNE) != RESET)  
  {                                                         
    usart_interrupt_flag_clear(USART1, USART_INT_FLAG_RBNE);  
		if (u8_RX_Index < u8_RX_Length )
		{
			u8_RxBuf[u8_RX_Index] = usart_data_receive(USART1);    
			u8_RX_Index++;
			B_Rx_Data_ING = 1;																			
		}
    else
		{
			B_Rx_Finish = TRUE;								
			u8_RX_Index = 0;
		}                                                                                     
  }                                                                                                                                                                                                                                
} 

void InitUART1(unsigned int bound)
{       
  ConfigUART1(bound);    
}


void InitCH448F(void)
{
	ConfigCH448FGPIO();		
}

void Start_Send_UartData(unsigned char len)
{
	unsigned int i;
	for(i=0;i<len;i++)
	{
		usart_data_transmit(USART1, (uint8_t)u8_TxBuf[i]);  	
		while(usart_flag_get(USART1, USART_FLAG_TC) == RESET);
	}
}

void select_channel(uint8_t chx)
{
	switch(chx)
	{
		case 0:
			SEL0_L;
			SEL1_L;
			SEL2_L;
			break;
		case 1:
			SEL0_H;
			SEL1_L;
			SEL2_L;
		break;
		case 2:
			SEL0_L;
			SEL1_H;
			SEL2_L;
		break;
		default:
			break;
	}
	DelayNus(3);
}