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STC15W408AS定時(shí)器T2設(shè)置 看下面是 C程序，中斷號(hào)是12
- /*---------------------------------------------------------------------*/
- /* --- STC MCU Limited ------------------------------------------------*/
- /* --- STC15W408AS 系列 定時(shí)器2的16位自動(dòng)重裝載模式舉例---------------*/
- /* --- Mobile: (86)13922805190 -------------- -------------------------*/
- /* --- Fax: 86-0513-55012956,55012947,55012969 ------------------------*/
- /* --- Tel: 86-0513-55012928,55012929,55012966-------------------------*/
- /* --- Web: www.STCMCU.com --------------------------------------------*/
- /* --- Web: www.GXWMCU.com --------------------------------------------*/
- /* 如果要在程序中使用此代碼,請(qǐng)?jiān)诔绦蛑凶⒚魇褂昧薙TC的資料及程序 */
- /* 如果要在文章中應(yīng)用此代碼,請(qǐng)?jiān)谖恼轮凶⒚魇褂昧薙TC的資料及程序 */
- /*---------------------------------------------------------------------*/
- //本示例在Keil開(kāi)發(fā)環(huán)境下請(qǐng)選擇Intel的8058芯片型號(hào)進(jìn)行編譯
- //若無(wú)特別說(shuō)明,工作頻率一般為11.0592MHz
- #include "reg51.h"
- typedef unsigned char BYTE;
- typedef unsigned int WORD;
- //-----------------------------------------------
- #define FOSC 11059200L
- #define T1MS (65536-FOSC/1000) //1T模式
- //#define T1MS (65536-FOSC/12/1000) //12T模式
- sfr P0M1 = 0x93;
- sfr P0M0 = 0x94;
- sfr P1M1 = 0x91;
- sfr P1M0 = 0x92;
- sfr P2M1 = 0x95;
- sfr P2M0 = 0x96;
- sfr P3M1 = 0xb1;
- sfr P3M0 = 0xb2;
- sfr P4M1 = 0xb3;
- sfr P4M0 = 0xb4;
- sfr P5M1 = 0xC9;
- sfr P5M0 = 0xCA;
- sfr P6M1 = 0xCB;
- sfr P6M0 = 0xCC;
- sfr P7M1 = 0xE1;
- sfr P7M0 = 0xE2;
- sfr IE2 = 0xaf; //中斷使能寄存器2
- sfr AUXR = 0x8e; //輔助寄存器
- sfr T2H = 0xD6; //定時(shí)器2高8位
- sfr T2L = 0xD7; //定時(shí)器2低8位
- sbit P10 = P1^0;
- //-----------------------------------------------
- //中斷服務(wù)程序
- void t2int() interrupt 12 //中斷入口
- {
- P10 = !P10; //將測(cè)試口取反
-
- // IE2 &= ~0x04; //若需要手動(dòng)清除中斷標(biāo)志,可先關(guān)閉中斷,此時(shí)系統(tǒng)會(huì)自動(dòng)清除內(nèi)部的中斷標(biāo)志
- // IE2 |= 0x04; //然后再開(kāi)中斷即可
- }
- //-----------------------------------------------
- /* main program */
- void main()
- {
- P0M0 = 0x00;
- P0M1 = 0x00;
- P1M0 = 0x00;
- P1M1 = 0x00;
- P2M0 = 0x00;
- P2M1 = 0x00;
- P3M0 = 0x00;
- P3M1 = 0x00;
- P4M0 = 0x00;
- P4M1 = 0x00;
- P5M0 = 0x00;
- P5M1 = 0x00;
- P6M0 = 0x00;
- P6M1 = 0x00;
- P7M0 = 0x00;
- P7M1 = 0x00;
- AUXR |= 0x04; //定時(shí)器2為1T模式
- // AUXR &= ~0x04; //定時(shí)器2為12T模式
- T2L = T1MS; //初始化計(jì)時(shí)值
- T2H = T1MS >> 8;
- AUXR |= 0x10; //定時(shí)器2開(kāi)始計(jì)時(shí)
-
- IE2 |= 0x04; //開(kāi)定時(shí)器2中斷
- EA = 1;
- while (1);
- }
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