59 lines
2.9 KiB
C
59 lines
2.9 KiB
C
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/********************************** (C) COPYRIGHT *******************************
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* File Name : Main.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 触摸按键中断和查询方式进行采集并报告当前采样通道按键状态，包含初始化和按键采样等演示函数
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*******************************************************************************/
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#include "..\Public\CH554.H"
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#include "..\Public\Debug.H"
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#include "TouchKey.H"
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#include "stdio.h"
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#pragma NOAREGS
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main( )
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{
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UINT8 i;
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CfgFsys( ); //CH554时钟选择配置
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mDelaymS(5); //修改主频建议稍加延时等待芯片供电稳定
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mInitSTDIO( ); //串口0初始化
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printf("start ...\n");
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P1_DIR_PU &= 0x0C; //所有触摸通道设置为浮空输入，用不到的通道可以不设置
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TouchKeyQueryCyl2ms(); //TouchKey查询周期2ms
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GetTouckKeyFreeBuf(); //获取采样基准值
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#if DE_PRINTF
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for(i=KEY_FIRST;i<(KEY_LAST+1);i++) //打印采样基准值
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{
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printf("Channel %02x base sample %04x\n",(UINT16)i,KeyFree[i]);
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}
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#endif
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#if INTERRUPT_TouchKey
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EA = 1;
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while(1)
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{
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if(KeyBuf) //key_buf非0，表示检测到按键按下
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{
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printf("INT TouchKey Channel %02x \n",(UINT16)KeyBuf); //打印当前按键状态通道
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KeyBuf = 0; //清除按键按下标志
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mDelaymS(100); //延时无意义，模拟单片机做按键处理
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}
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mDelaymS(100); //延时无意义，模拟单片机干其他事
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}
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#else
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while(1)
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{
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TouchKeyChannelQuery(); //查询触摸按键状态
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if(KeyBuf) //key_buf非0，表示检测到按键按下
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{
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printf("Query TouchKey Channel %02x \n",(UINT16)KeyBuf); //打印当前按键状态通道
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KeyBuf = 0; //清除按键按下标志
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mDelaymS(100); //延时无意义，模拟单片机做按键处理
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}
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mDelaymS(100); //延时无意义，模拟单片机干其他事
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}
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#endif
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} |