SmartPDCode/control/STS/HARDWARE/Key/Key.c

/*********************************************************************************************************
* Module   : key.c
* Abstract : key modules,key be used to determing modebus address and It content interfaces of scankey to read! 
* Version  : 1.0.0
* Author   : Leopul(COPYRIGHT 2025 - 2027 Leopul. All rights reserved.)
* Complete : 2025-02-16
* Content  : None
* Note     : None
*********************************************************************************************************/

#include "Key.h"
#include "gd32e230x_conf.h"



#define KEY_NAME_MAX 	5
#define KEY_ON 0
#define KEY_OFF 1

#define KEY1 GPIO_PIN_12
#define KEY2 GPIO_PIN_6
#define KEY3 GPIO_PIN_7
#define KEY4 GPIO_PIN_8
#define KEY5 GPIO_PIN_15


static  unsigned char  s_arrKeyDownLevel[KEY_NAME_MAX];     


static  void  ConfigKeyGPIO(void); 

static  void  ConfigKeyGPIO(void)
{
  rcu_periph_clock_enable(RCU_GPIOA); 
  rcu_periph_clock_enable(RCU_GPIOF); 
	rcu_periph_clock_enable(RCU_GPIOB);

  
  gpio_mode_set(GPIOA, GPIO_MODE_INPUT, GPIO_PUPD_PULLUP, KEY1); 
  gpio_mode_set(GPIOF, GPIO_MODE_INPUT, GPIO_PUPD_PULLUP, KEY2);
  gpio_mode_set(GPIOF, GPIO_MODE_INPUT, GPIO_PUPD_PULLUP, KEY3);
	gpio_mode_set(GPIOA, GPIO_MODE_INPUT, GPIO_PUPD_PULLUP, KEY4);
	gpio_mode_set(GPIOB, GPIO_MODE_INPUT, GPIO_PUPD_PULLUP, KEY5);

}

void InitKey(void)
{
  ConfigKeyGPIO();                                                       
}


unsigned char ScanKey(unsigned int gpio_periph,unsigned int pin)
{
	if(gpio_input_bit_get(gpio_periph,pin)==0)
		return KEY_ON;
	else 
		return KEY_OFF;
}

unsigned char ReadKeyValue(void)
{
	static  unsigned char  SlaveAddress;
	s_arrKeyDownLevel[0]=ScanKey(GPIOA,KEY1);
	s_arrKeyDownLevel[1]=ScanKey(GPIOF,KEY2);
	s_arrKeyDownLevel[2]=ScanKey(GPIOF,KEY3);
	s_arrKeyDownLevel[3]=ScanKey(GPIOA,KEY4);
	s_arrKeyDownLevel[4]=ScanKey(GPIOB,KEY5);
	SlaveAddress=(~((s_arrKeyDownLevel[4]<<4)|(s_arrKeyDownLevel[3]<<3)|(s_arrKeyDownLevel[2]<<2)|(s_arrKeyDownLevel[1]<<1)|s_arrKeyDownLevel[0]))&0x1f;
	return SlaveAddress;
}