81 lines
3.1 KiB
C
81 lines
3.1 KiB
C
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/********************************** (C) COPYRIGHT *******************************
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* File Name : Touch_Key.C
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* Author : WCH
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* Version : V1.0
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* Date : 2017/01/20
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* Description : CH554 触摸按键采样间隔设置、通道选择和切换和中断处理函数
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*******************************************************************************/
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#include "CH554.H"
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#include "DEBUG.H"
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#include "Key.h"
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#include "stdio.h"
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#pragma NOAREGS
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/*******************************************************************************
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* Function Name : TouchKeyQueryCylSet1Or2ms(UINT8 cyl)
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* Description : 触摸按键查询周期设置
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* Input : UINT8 cyl 时钟设置
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1 2ms
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0 1ms
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* Output : None
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* Return : None
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*******************************************************************************/
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void TouchKeyQueryCylSet1Or2ms(UINT8 cyl)
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{
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if(cyl)
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{
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TKEY_CTRL |= bTKC_2MS;
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}
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else
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{
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TKEY_CTRL &= ~bTKC_2MS;
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}
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}
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/*******************************************************************************
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* Function Name : TouchKeyChanelSelect(UINT8 ch)
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* Description : 触摸按键通道选择
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* Input : UINT8 ch 采用通道
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* Output : None
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* Return : 成功 SUCCESS
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失败 FAIL
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*******************************************************************************/
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UINT8 TouchKeyChanelSelect(UINT8 ch)
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{
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TKEY_CTRL &= 0xF8;
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if(ch == 0){;} //关闭电容检测，仅作1ms或者2ms定时中断
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else if(ch == 1){P1_DIR_PU &= 0xFE; TKEY_CTRL |= 0x01;} //TIN0(P10)
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else if(ch == 2){P1_DIR_PU &= 0xFD; TKEY_CTRL |= 0x02;} //TIN0(P11)
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else if(ch == 3){P1_DIR_PU &= 0xEF; TKEY_CTRL |= 0x03;} //TIN0(P14)
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else if(ch == 4){P1_DIR_PU &= 0xDF; TKEY_CTRL |= 0x04;} //TIN0(P15)
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else if(ch == 5){P1_DIR_PU &= 0xBF; TKEY_CTRL |= 0x05;} //TIN0(P16)
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else if(ch == 6){P1_DIR_PU &= 0x7F; TKEY_CTRL |= 0x06;} //TIN0(P17)
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else if(ch == 7){TKEY_CTRL |= 0x07;} //开启电容检测，但是不连接通道
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else return FAIL;
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#if INTERRUPT_TouchKey
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IE_TKEY = 1; //使能Touch_Key中断
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#endif
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return SUCCESS;
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}
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#if INTERRUPT_TouchKey
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/*******************************************************************************
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* Function Name : Touch_KeyInterrupt(void)
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* Description : Touch_Key 中断服务程序
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*******************************************************************************/
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void Touch_KeyInterrupt( void ) interrupt INT_NO_TKEY using 1 //Touch_Key中断服务程序,使用寄存器组1
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{
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UINT16 KeyData;
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IE_TKEY = 0; //关中断
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KeyData = TKEY_DAT; //保持87us,尽快取走
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#ifdef DE_PRINTF
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printf("DATA: %04x\n",KeyData&0x7FFF);
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#endif
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}
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#endif
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