CH552/projects/examples/TouchKey/TouchKey.C

/********************************** (C) COPYRIGHT *******************************
* File Name          : TouchKey.C
* Author             : WCH
* Version            : V1.0
* Date               : 2017/01/20
* Description        : CH554 <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>á<EFBFBD>ͨ<EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD><EFBFBD>жϴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>   
*******************************************************************************/

#include "..\Public\CH554.H"                                                       
#include "..\Public\Debug.H"
#include "TouchKey.H"
#include "stdio.h"

#pragma  NOAREGS

UINT16	KeyFree[KEY_LAST-KEY_FIRST+1];                                        //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD><EFBFBD>ڱȽϰ<C8BD><CFB0><EFBFBD>״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵС<D6B5>ڻ<EFBFBD>׼ֵ<D7BC><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
UINT8V	KeyBuf;                                                               //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<D7B4><CCAC>Ϊ0<CEAA><30>ʾ<EFBFBD>ް<EFBFBD><DEB0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0<EFBFBD><30>ʾ<EFBFBD><CABE>ǰ<EFBFBD><C7B0><EFBFBD>ⰴ<EFBFBD><E2B0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

/*******************************************************************************
* Function Name  : GetTouckKeyFreeBuf()
* Description    : <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>״̬<EFBFBD><EFBFBD>ֵ
* Input          : None								 
* Output         : None
* Return         : None
*******************************************************************************/
void GetTouckKeyFreeBuf()
{
  UINT8 i,j;
  UINT8 TmpSum = 0;
  KeyBuf = 0;                                                                 //<2F><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ް<EFBFBD><DEB0><EFBFBD>״̬
  for(i=KEY_FIRST;i<(KEY_LAST+1);i++)
  {
		j = KEY_BASE_SAMPLE_TIME;                                                 //<2F>ɶ<EFBFBD><C9B6><EFBFBD><EFBFBD><EFBFBD>ƽ<EFBFBD><C6BD>ֵ<EFBFBD><D6B5>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>ο<EFBFBD>
	  TKEY_CTRL = (TKEY_CTRL & 0xF8 | i)+1;                                     //<2F><><EFBFBD>ò<EFBFBD><C3B2><EFBFBD>ͨ<EFBFBD><CDA8>
    while(j--)
    {
        while((TKEY_CTRL&bTKC_IF) == 0);                                      //bTKC_IF<49><46>Ϊ1ʱ<31><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
        TmpSum += TKEY_DAT&0x0F;                                              //<2F><><EFBFBD><EFBFBD>ֵ<EFBFBD>ȶ<EFBFBD><C8B6><EFBFBD>ȡ<EFBFBD><C8A1>4λ<34>͹<EFBFBD><CDB9><EFBFBD>
    }		
    KeyFree[i] = TKEY_DAT&0x07F0 + TmpSum/5;                                  //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ 
  }
#if INTERRUPT_TouchKey
    IE_TKEY = 1;                                                              //ʹ<><CAB9>Touch_Key<65>ж<EFBFBD>
#endif   
}

/*******************************************************************************
* Function Name  : TouchKeyChannelSelect(UINT8 ch)
* Description    : <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD>
* Input          : UINT8 ch <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD>
                   0~5 <EFBFBD>ֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD>
* Output         : None
* Return         : <EFBFBD>ɹ<EFBFBD> SUCCESS
                   ʧ<EFBFBD><EFBFBD> FAIL  <EFBFBD><EFBFBD>֧<EFBFBD>ֵ<EFBFBD>ͨ<EFBFBD><EFBFBD>
*******************************************************************************/
UINT8 TouchKeyChannelSelect(UINT8 ch)
{
    if(ch < 6)
    {
        TKEY_CTRL = (TKEY_CTRL & 0xF8 | ch)+1;
        return SUCCESS;			
    }
    return FAIL;
}

#if INTERRUPT_TouchKey
/*******************************************************************************
* Function Name  : TouchKeyInterrupt(void)
* Description    : Touch_Key <EFBFBD>жϷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*******************************************************************************/
void	TouchKeyInterrupt( void ) interrupt INT_NO_TKEY using 1                //Touch_Key<65>жϷ<D0B6><CFB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,ʹ<>üĴ<C3BC><C4B4><EFBFBD><EFBFBD><EFBFBD>1
{ 
	  UINT8	ch;
    UINT16 KeyData;

    KeyData = TKEY_DAT;                                                       //<2F><><EFBFBD><EFBFBD>87us,<2C><><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1>
    ch = TKEY_CTRL&7;                                                         //<2F><>ȡ<EFBFBD><C8A1>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>
    if ( ch > KEY_LAST ){
       TKEY_CTRL = TKEY_CTRL & 0xF8 | KEY_FIRST;                              //<2F><><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
    }			
    else
    {
       TKEY_CTRL ++;                                                          //<2F>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>
    }
    if ( KeyData < (KeyFree[ch-KEY_FIRST] - KEY_ACT) )                        //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㣬<EFBFBD><E3A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>   
    {
        KeyBuf=ch;                                                            //<2F><><EFBFBD><EFBFBD><EFBFBD>ڴ˴<DAB4><CBB4><EFBFBD><EFBFBD>а<EFBFBD><D0B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD>־֪ͨmain<69><6E><EFBFBD>д<EFBFBD><D0B4><EFBFBD>
    }
}
#else
/*******************************************************************************
* Function Name  : TouchKeyChannelQuery()
* Description    : <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD>ѯ
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void TouchKeyChannelQuery()
{
	  UINT8	ch;
    UINT16 KeyData;

    while((TKEY_CTRL&bTKC_IF) == 0);                                          //bTKC_IF<49><46>Ϊ1ʱ<31><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    KeyData = TKEY_DAT;                                                       //<2F><><EFBFBD><EFBFBD>87us,<2C><><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1>
    ch = TKEY_CTRL&7;                                                         //<2F><>ȡ<EFBFBD><C8A1>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>
    if ( ch > KEY_LAST ){
       TKEY_CTRL = TKEY_CTRL & 0xF8 | KEY_FIRST;                              //<2F><><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
    }			
    else
    {
       TKEY_CTRL ++;                                                          //<2F>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>
    }
    if ( KeyData < (KeyFree[ch-KEY_FIRST] - KEY_ACT) )                        //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㣬<EFBFBD><E3A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>   
    {
        KeyBuf=ch;                                                            //<2F><><EFBFBD><EFBFBD><EFBFBD>ڴ˴<DAB4><CBB4><EFBFBD><EFBFBD>а<EFBFBD><D0B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD>־֪ͨmain<69><6E><EFBFBD>д<EFBFBD><D0B4><EFBFBD>
    }
}
#endif