STC单片机串口程序.docx
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- 上传时间:2022-12-06
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STC单片机串口程序.docx
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STC单片机串口程序
〃注意,如您使用的MCU没有那个功能,就不要操作相应的寄存器
〃注意,如您使用的MCU没有那那么大的扩展SRAM,就不要操作超过范围的
SRAM#include
#include
sfrS2C0N=0x9A;
//S2SM0,S2SM1,S2SM2,S2REN,S2TB8,SRB&S2TI,S2RI
sfrIE2
=OxAF;
sfr
S2BUF
=0x9B;
sfr
AUXR
=0x8e;
sfr
BRT=0x9c;
sfr
IAP_CONTR=0xC7;
sfr
CCON
=0xD8;
sfr
CMOD
=0xD9;
sfr
CL=
0xE9;
sfr
CH=
:
0xF9;
sfr
CCAP0L
=OxEA;
sfr
CCAP0H
=OxFA;
sfr
CCAPM0
=OxDA;
sfr
CCAPM1
=OxDB;
sbitCR=
OxDE;
sbitMCU_Start.
.Led=P1A7
sbitS2」nterrupt„Receive_Led
//unsignedcharself_command_
〃X,X,X,X,X,X,ESPI,ES2
=P1A4;
array[4]={0x22,0x33,0x44,0x55};
#defineSelf_Define」SP_Download_Command0x22
#defineRELOAD_COUNTOxfb//18.432MH乙42「SMOD=0,9600bpsvoidserial_port_one」nitial();
voidsend_UART_one(unsignedchar);voidUART_one」nterrupt_Receive(void);
voidseriaLport_two_initial();
voidsend_UART_two(unsignedchar);
voidUART_two_lnterrupt_Receive(void);
voidsoft_reset_to_ISP_Monitor(void);voiddelay(void);
voiddisplay_MCU_Start_Led(void);
voidsend_PWM(void);
voidmain(void)
{
unsignedintarray_point=0;
unsignedcharxdataTest_array_one[512]
0x00,
0x01,
0x02,
0x03,
0x04,
0x05,
0x06,
0x07,
OxOe,
0x0&
OxOf,
0x09,
0x0a,
0x0b,
0x0c,
OxOd,
0x16,
0x10,
0x17,
0x11,
0x12,
0x13,
0x14,
0x15,
0x1e,
0x1&
0x1f,
0x19,
0x1a,
0x1b,
0x1c,
0x1d,
0x26,
0x20,
0x27,
0x21,
0x22,
0x23,
0x24,
0x25,
0x2e,
0x2&
0x2f,
0x29,
0x2a,
0x2b,
0x2c,
0x2d,
0x36,
0x30,
0x37,
0x31,
0x32,
0x33,
0x34,
0x35,
0x3e,
0x3&
0x3f,
0x39,
0x3a,
0x3b,
0x3c,
0x3d,
0x46,
0x40,
0x47,
0x41,
0x42,
0x43,
0x44,
0x45,
0x4e,
0x4&
0x4f,
0x49,
0x4a,
0x4b,
0x4c,
0x4d,
0x56,
0x50,
0x57,
0x51,
0x52,
0x53,
0x54,
0x55,
0x5e,
0x5&
0x5f,
0x59,
0x5a,
0x5b,
0x5c,
0x5d,
0x66,
0x60,
0x67,
0x61,
0x62,
0x63,
0x64,
0x65,
0x6e,
0x6&
0x6f,
0x69,
0x6a,
0x6b,
0x6c,
0x6d,
0x76,
0x70,
0x77,
0x71,
0x72,
0x73,
0x74,
0x75,
0x7e,
0x7&
0x7f,
0x79,
0x7a,
0x7b,
0x7c,
0x7d,
0x86,
0x80,
0x87,
0x81,
0x82,
0x83,
0x84,
0x85,
0x88,
0x89,
0x8a,
0x8b,
0x8c,
0x8d,
0x8e,
0x8f,
0x90,
0x91,
0x92,
0x93,
0x94,
0x95,
0x96,
0x97,
0x9&
0x99,
0x9a,
0x9b,
0x9c,
0x9d,
0x9e,
0x9f,
OxaO,
0xa1,
0xa2,
0xa3,
0xa4,
0xa5,
0xa6,
0xa7,
Oxa&
0xa9,
Oxaa,
Oxab,
Oxac,
Oxad,
Oxae,
Oxaf,
OxbO,
Oxb1,
0xb2,
0xb3,
0xb4,
0xb5,
0xb6,
0xb7,
Oxb&
0xb9,
Oxba,
Oxbb,
Oxbc,
Oxbd,
Oxbe,
Oxbf,
OxcO,
0xc1,
0xc2,
0xc3,
0xc4,
0xc5,
0xc6,
0xc7,
0xc8,
0xc9,
Oxca,
Oxcb,
Oxcc,
Oxcd,
Oxce,
Oxcf,
OxdO,
Oxd1,
0xd2,
0xd3,
0xd4,
0xd5,
0xd6,
0xd7,
Oxd&
0xd9,
Oxda,
Oxdb,
Oxdc,
Oxdd,
Oxde,
Oxdf,
OxeO,
0xe1,
0xe2,
0xe3,
0xe4,
0xe5,
0xe6,
0xe7,
Oxe&
0xe9,
Oxea,
Oxeb,
Oxec,
Oxed,
Oxee,
Oxef,
OxfO,
Oxf1,
0xf2,
0xf3,
0xf4,
0xf5,
0xf6,
0xf7,
0xf8,
0xf9,
Oxfa,
Oxfb,
Oxfc,
Oxfd,
Oxfe,
Oxff,
Oxff,
Oxfe,
Oxfd,
Oxfc,
Oxfb,
Oxfa,
0xf9,
0xf8,
0xf7,
0xf6,
0xf5,
0xf4,
0xf3,
0xf2,
Oxf1,
OxfO,
Oxef,
Oxee,
Oxed,
Oxec,
Oxeb,
Oxea,
0xe9,
0xe8,
0xe7,
0xe6,
0xe5,
0xe4,
0xe3,
0xe2,
0xe1,
OxeO,
Oxdf,
Oxde,
Oxdd,
Oxdc,
Oxdb,
Oxda,
0xd9,
Oxd&
0xd7,
0xd6,
0xd5,
0xd4,
0xd3,
0xd2,
Oxd1,
OxdO,
Oxcf,
Oxce,
Oxcd,
Oxcc,
Oxcb,
Oxca,
0xc9,
Oxc&
Oxc1,
0xc7,
OxcO,
0xc6,
0xc5,
0xc4,
0xc3,
0xc2,
0xb9,
Oxbf,
Oxb&
Oxbe,
Oxbd,
Oxbc,
Oxbb,
Oxba,
Oxb1,
0xb7,
OxbO,
0xb6,
0xb5,
0xb4,
0xb3,
0xb2,
0xa9,
Oxaf,
Oxa&
Oxae,
Oxad,
Oxac,
Oxab,
Oxaa,
Oxa1,
0xa7,
OxaO,
0xa6,
0xa5,
0xa4,
0xa3,
0xa2,
0x99,
0x9f,
0x9&
0x9e,
0x9d,
0x9c,
0x9b,
0x9a,
0x91,
0x97,
0x90,
0x96,
0x95,
0x94,
0x93,
0x92,
0x89,
0x8f,
0x8&
0x8e,
0x8d,
0x8c,
0x8b,
0x8a,
0x81,
0x87,
0x80,
0x86,
0x85,
0x84,
0x83,
0x82,
0x79,
0x7f,
0x78,
0x7e,
0x7d,
0x7c,
0x7b,
0x7a,
0x71,
0x77,
0x70,
0x76,
0x75,
0x74,
0x73,
0x72,
0x69,
0x6f,
0x68,
0x6e,
0x6d,
0x6c,
0x6b,
0x6a,
0x61,
0x67,
0x60,
0x66,
0x65,
0x64,
0x63,
0x62,
0x59,
0x5f,
0x5&
0x5e,
0x5d,
0x5c,
0x5b,
0x5a,
0x51,
0x57,
0x50,
0x56,
0x55,
0x54,
0x53,
0x52,
0x49,
0x4f,
0x4&
0x4e,
0x4d,
0x4c,
0x4b,
0x4a,
0x41,
0x47,
0x40,
0x46,
0x45,
0x44,
0x43,
0x42,
0x39,
0x3f,
0x3&
0x3e,
0x3d,
0x3c,
0x3b,
0x3a,
0x31,
0x37,
0x30,
0x36,
0x35,
0x34,
0x33,
0x32,
0x29,
0x2f,
0x28,
0x2e,
0x2d,
0x2c,
0x2b,
0x2a,
0x27,
0x26,
0x25,
0x24,
0x23,
0x22,
0x21,
0x20,
0x19,
0x1f,
0x1&
0x1e,
0x1d,
0x1c,
0x1b,
0x1a,
0x11,
0x17,
0x10,
0x16,
0x15,
0x14,
0x13,
0x12,
0x09,
OxOf,
0x0&
OxOe,
OxOd,
0x0c,
0x0b,
0x0a,
0x01,
0x07,
0x00
0x06,
0x05,
0x04,
0x03,
0x02,
};
unsignedchari=0;
serial_port_one」nitial();
//serial_port_two」nitial();
display_MCU_Start_Led();
〃串口1初始化
〃串口2初始化
〃点亮发光二极管表示单片机开始工作
〃串口2发送数据表示单片机串口正
〃串口2发送数据表示单片机串口正
//send_UART_two(0x55);常工作
//send_UART_two(Oxaa);
常工作
for(array_point=0;array_point<512;array_point++)
{
send_UART_two(Test_array_one[array_point]);
}
*/
send_UART_one(0x34);〃串口1发送数据表示单片机串口正
常工作
send_UART_one(0xa7);〃串口1发送数据表示单片机串口正
常工作
for(array_point=O;array_point<512;array_point++)
{
send_UART_one(Test_array_one[array_point]);
}
//send_PWM();//6kHzPWM,50%duty
while
(1);
voidserial_port_one_initial()
SCON
0x50;//0101,00008位可变波特率,无奇偶校验位
//
TMOD
0x21;//0011,0001设置顶时器1为8位自动重装计数器
//
TH1
RELOAD.COUNT;〃设置定时器1自动重装数
//
TL1
RELOAD.COUNT;
//
TR1
1;〃弄定时器1
BRT=RELOAD_COUNT;
//BRTR=1,S1BRS=1,EXTRAM=1ENABLEEXTRAM
AUXR=0x11;//
T0x12,T1x12,UART_M0x6,BRTR,S2SMOD,BRTx12,EXTRAM,S1BRS
ES=1;〃允许串口中断
EA=1;〃开总中断
}
voidserial_port_two」nitial()
{
//sfrSCON=0x98;
//SM0,SM1,SM2,REN,TB8,RB8,TI,RI
//sfrS2CON=0x9A;
//S2SM0,S2SM1,S2SM2,S2REN,S2TB8,S2RB8,S2TI,S2RI
//sfrS2BUF=0x9B;
//sfrIE2=OxAF;
〃X,X,X,X,X,X,ESPI,ES2
S2CON=0x50;//0101,00008位可变波特率,无奇偶校验位,允许接收
BRT=RELOAD_COUNT;
//BRTR=1,S1BRS=1,EXTRAM=0ENABLEEXTRAM
AUXR=0x11;//
T0x12,T1x12,UART_M0x6,BRTR,S2SMOD,BRTx12,EXTRAM,S1BRS
//ES=1;〃允许串口1中断
//ES2=1
IE2=0x01;//允许串口2中断,ES2=1
EA=1;〃开总中断
}
voidsend_UART_one(unsignedchari)
ES
0;//关串口中断
TI=
SBUFwhile(TI=TI=
ES=
0;〃清零串口发送完成中断请求标志=j;
:
二0);;/等待发送完成
0;〃清零串口发送完成中断请求标志=1;//允许串口中断
}
voidsend_UART_two(unsignedchari){
//sfrSCON=0x98;
//SM0,SM1,SM2,REN,TB8,RB8,TI,RI
//sfrS2CON=0x9A;
//S2SM0,S2SM1,S2SM2,S2REN,S2TB8,S2RB8,S2TI,S2RI
//sfrS2BUF=0x9B;
//sfrIE2=OxAF;
〃X,X,X,X,X,X,ESPI,ES2
unsignedchartemp=0;
//ES=0;〃关串口1中断
IE2=0x00;〃关串口2中断,es2=0
//TI=0;〃清零串口1发送完成中断请求标志
S2CON=S2CON&OxFD;//B*11111101,清零串口2发送完成中断请求标志
//SBUF=i;
S2BUF=i;
//while(TI==0);//等待发送完成
do
{
temp=S2CON;
temp=temp&0x02;
}while(temp==0);
//TI=0;〃清零串口发送完成中断请求标志
S2CON=S2CON&OxFD;//B*11111101,清零串口2发送完成中断请求标志
//ES=1;〃允许串口1中断
//ES2=1
IE2=0x01;//允许串口2中断,ES2=1
voidUART_one」nterrupt_Receive(void)interrupt4
unsignedchark=0;
if(RI==1)
{
Rl=0;
k=SBUF;
if(k==Self_Define」SP_Download_Command)〃是自定义下载命令
{
delay();〃延时1秒就足够了
delay();〃延时1秒就足够了soft_reset_to_ISP_Monitor();//软复位到系统ISP监控区
}
send_UART_one(k+1);
}
else
{
Tl=0;
}
}
voidUART_two_lnterrupt_Receive(void)interrupt8
{
//sfrSCON=0x98;
//SM0,SM1,SM2,REN,TB8,RB8,TI,RI
//sfrS2CON=0x9A;
//S2SM0,S2SM1,S2SM2,S2REN,S2TB8,S2RB8,S2TI,S2RI
//sfrS2BUF=0x9B;
//sfrIE2=OxAF;
〃X,X,X,X,X,X,ESPI,ES2
unsignedchark=0;
k=S2CON;
k=k&0x01;
//if(S2RI==1)
if(k==1)
{
//Rl=0;
S2CON=S2CON&OxFE;//1111,1110
S2_lnterrupt_Receive_Led=0;
k=S2BUF;
if(k==Self_Define」SP_Download_Command)〃是自定义下载命令
delay();
〃延时4秒就足够了
delay();〃延时1秒就足够了
soft_reset_to_ISP_Monitor();//软复位到系统ISP监控区
}send_UART_two(k+1);
}
else
{
//Tl=0;
S2CON=S2CON&OxFD;//1111,1101
}
}
voidsoft_reset_to」SP_Monitor(void)
{
IAP.CONTR=0x60;//0110,0000软复位到系统ISP监控区
}
voiddelay(void)
{
unsignedintj=0;
unsignedintg=0;
for(j=0;j<5;j++)
{
for(g=0;g<60000;g++)
{
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
}
}
}voiddisplay_MCU_Start_Led(void){
//sbitMCUStartLed=P1A7;
unsignedchari=0;for(i=0;i<1;i++)
MCU_Start_Leddelay();
MCU_Start_Leddelay();
MCU_Start_Led
0;〃顶亮MCU开始工作指示灯
1;〃熄灭MCU开始工作指示灯
0;〃顶亮MCU开始工作指示灯
//CIDL・・・・CPS1CPSOECFSetupPCA
CL=0x00;
CH=0x00;
CCAPOL=0x80;
CCAPOH=0x80;
CCAPMO=0x42;
P3.7
CR=1;
voidsend_PWM(void)
{
CMOD=0x00;
Timer//CPS1CPSO=00,Fosc/12isPCA/PWMclock
//18432000/12/256=6000
//SettheinitialvaluesameasCCAPOH
//50%DutyCycle
//0100,0010SetupPCAmodule0in8BITPWM,
〃启动PCA/PWM定时器
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