觉得52单片机比较低端的,可以尝试本文的MSP430,两种测量方案均通过测试仿真,个人还是推荐C52,proteus对其他单片机仿真的速度好像提不了太快,承接上文,本次主要设计就是用的是MSP430F249的主控,文末附上下载链接
三个时钟都要进行设置,确保时钟为8M方可正常使用
我就不多说了直接贴代码吧
//////////////////////////////////////////////////////////////////////////////////
// ----------------------------------------------------------------
// GND 电源地
// VCC 接3.3v电源
// D0 P54(时钟)
// D1 P53(数据)
// RES 接P52
// DC 接P51
// CS 接P50
// ----------------------------------------------------------------
//******************************************************************************/
#include "oled.h"
#include "oledfont.h"
//OLED的显存
//存放格式如下.
//[0]0 1 2 3 ... 127
//[1]0 1 2 3 ... 127
//[2]0 1 2 3 ... 127
//[3]0 1 2 3 ... 127
//[4]0 1 2 3 ... 127
//[5]0 1 2 3 ... 127
//[6]0 1 2 3 ... 127
//[7]0 1 2 3 ... 127
void delay_ms(unsigned int ms)
{
unsigned int a;
while(ms)
{
a=1800;
while(a--);
ms--;
}
return;
}
//向SSD1306写入一个字节。
//dat:要写入的数据/命令
//cmd:数据/命令标志 0,表示命令;1,表示数据;
void OLED_WR_Byte(u8 dat,u8 cmd)
{
u8 i;
if(cmd)
OLED_DC_Set();
else
OLED_DC_Clr();
OLED_CS_Clr();
for(i=0;i<8;i++)
{
OLED_SCLK_Clr();
if(dat&0x80)
{
OLED_SDIN_Set();
}
else
OLED_SDIN_Clr();
OLED_SCLK_Set();
dat<<=1;
}
OLED_CS_Set();
OLED_DC_Set();
}
void OLED_Set_Pos(unsigned char x, unsigned char y)
{
OLED_WR_Byte(0xb0+y,OLED_CMD);
OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD);
OLED_WR_Byte((x&0x0f)|0x01,OLED_CMD);
}
//开启OLED显示
void OLED_Display_On(void)
{
OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令
OLED_WR_Byte(0X14,OLED_CMD); //DCDC ON
OLED_WR_Byte(0XAF,OLED_CMD); //DISPLAY ON
}
//关闭OLED显示
void OLED_Display_Off(void)
{
OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令
OLED_WR_Byte(0X10,OLED_CMD); //DCDC OFF
OLED_WR_Byte(0XAE,OLED_CMD); //DISPLAY OFF
}
//清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!!
void OLED_Clear(void)
{
u8 i,n;
for(i=0;i<8;i++)
{
OLED_WR_Byte (0xb0+i,OLED_CMD); //设置页地址(0~7)
OLED_WR_Byte (0x00,OLED_CMD); //设置显示位置—列低地址
OLED_WR_Byte (0x10,OLED_CMD); //设置显示位置—列高地址
for(n=0;n<128;n++)OLED_WR_Byte(0,OLED_DATA);
} //更新显示
}
//在指定位置显示一个字符,包括部分字符
//x:0~127
//y:0~63
//mode:0,反白显示;1,正常显示
//size:选择字体 16/12
void OLED_ShowChar(u8 x,u8 y,u8 chr)
{
unsigned char c=0,i=0;
c=chr-' ';//得到偏移后的值
if(x>Max_Column-1){x=0;y=y+2;}
if(SIZE ==16)
{
OLED_Set_Pos(x,y);
for(i=0;i<8;i++)
OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);
OLED_Set_Pos(x,y+1);
for(i=0;i<8;i++)
OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA);
}
else {
OLED_Set_Pos(x,y+1);
for(i=0;i<6;i++)
OLED_WR_Byte(F6x8[c][i],OLED_DATA);
}
}
//m^n函数
u32 oled_pow(u8 m,u8 n)
{
u32 result=1;
while(n--)result*=m;
return result;
}
//显示2个数字
//x,y :起点坐标
//len :数字的位数
//size:字体大小
//mode:模式 0,填充模式;1,叠加模式
//num:数值(0~4294967295);
void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size2)
{
u8 t,temp;
u8 enshow=0;
for(t=0;t<len;t++)
{
temp=(num/oled_pow(10,len-t-1))%10;
if(enshow==0&&t<(len-1))
{
if(temp==0)
{
OLED_ShowChar(x+(size2/2)*t,y,' ');
continue;
}else enshow=1;
}
OLED_ShowChar(x+(size2/2)*t,y,temp+'0');
}
}
//显示一个字符号串
void OLED_ShowString(u8 x,u8 y,u8 *chr)
{
unsigned char j=0;
while (chr[j]!='\0')
{ OLED_ShowChar(x,y,chr[j]);
x+=8;
if(x>120){x=0;y+=2;}
j++;
}
}
//显示汉字
void OLED_ShowCHinese(u8 x,u8 y,u8 no)
{
u8 t,adder=0;
OLED_Set_Pos(x,y);
for(t=0;t<16;t++)
{
OLED_WR_Byte(Hzk[2*no][t],OLED_DATA);
adder+=1;
}
OLED_Set_Pos(x,y+1);
for(t=0;t<16;t++)
{
OLED_WR_Byte(Hzk[2*no+1][t],OLED_DATA);
adder+=1;
}
}
/***********功能描述:显示显示BMP图片128×64起始点坐标(x,y),x的范围0~127,y为页的范围0~7*****************/
void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[])
{
unsigned int j=0;
unsigned char x,y;
if(y1%8==0) y=y1/8;
else y=y1/8+1;
for(y=y0;y<y1;y++)
{
OLED_Set_Pos(x0,y);
for(x=x0;x<x1;x++)
{
OLED_WR_Byte(BMP[j++],OLED_DATA);
}
}
}
//初始化SSD1306
void OLED_Init(void)
{
OLED_SSD1306_SCLK_IO_INIT;
OLED_SSD1306_SDIN_IO_INIT;
OLED_SSD1306_DC_IO_INIT;
OLED_SSD1306_CE_IO_INIT;
OLED_SSD1306_RST_IO_INIT;
LED_IO_INIT;//用来点开发板上的led灯用的;
OLED_RST_Set();
delay_ms(100);
OLED_RST_Clr();
delay_ms(100);
OLED_RST_Set();
/*
OLED_WR_Byte(0xAE,OLED_CMD);//--turn off oled panel
OLED_WR_Byte(0x00,OLED_CMD);//---set low column address
OLED_WR_Byte(0x10,OLED_CMD);//---set high column address
OLED_WR_Byte(0x40,OLED_CMD);//--set start line address Set Mapping RAM Display Start Line (0x00~0x3F)
OLED_WR_Byte(0x81,OLED_CMD);//--set contrast control register
OLED_WR_Byte(0xCF,OLED_CMD); // Set SEG Output Current Brightness
OLED_WR_Byte(0xA1,OLED_CMD);//--Set SEG/Column Mapping 0xa0左右反置 0xa1正常
OLED_WR_Byte(0xC8,OLED_CMD);//Set COM/Row Scan Direction 0xc0上下反置 0xc8正常
OLED_WR_Byte(0xA6,OLED_CMD);//--set normal display
OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)
OLED_WR_Byte(0x3f,OLED_CMD);//--1/64 duty
OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset Shift Mapping RAM Counter (0x00~0x3F)
OLED_WR_Byte(0x00,OLED_CMD);//-not offset
OLED_WR_Byte(0xd5,OLED_CMD);//--set display clock divide ratio/oscillator frequency
OLED_WR_Byte(0x80,OLED_CMD);//--set divide ratio, Set Clock as 100 Frames/Sec
OLED_WR_Byte(0xD9,OLED_CMD);//--set pre-charge period
OLED_WR_Byte(0xF1,OLED_CMD);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
OLED_WR_Byte(0xDA,OLED_CMD);//--set com pins hardware configuration
OLED_WR_Byte(0x12,OLED_CMD);
OLED_WR_Byte(0xDB,OLED_CMD);//--set vcomh
OLED_WR_Byte(0x40,OLED_CMD);//Set VCOM Deselect Level
OLED_WR_Byte(0x20,OLED_CMD);//-Set Page Addressing Mode (0x00/0x01/0x02)
OLED_WR_Byte(0x02,OLED_CMD);//
OLED_WR_Byte(0x8D,OLED_CMD);//--set Charge Pump enable/disable
OLED_WR_Byte(0x14,OLED_CMD);//--set(0x10) disable
OLED_WR_Byte(0xA4,OLED_CMD);// Disable Entire Display On (0xa4/0xa5)
OLED_WR_Byte(0xA6,OLED_CMD);// Disable Inverse Display On (0xa6/a7)
OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel
*/
OLED_WR_Byte(0xAE,OLED_CMD);//--turn off oled panel
OLED_WR_Byte(0x00,OLED_CMD);//---set low column address
OLED_WR_Byte(0x10,OLED_CMD);//---set high column address
OLED_WR_Byte(0x40,OLED_CMD);//--set start line address Set Mapping RAM Display Start Line (0x00~0x3F)
OLED_WR_Byte(0x81,OLED_CMD);//--set contrast control register
OLED_WR_Byte(0xCF,OLED_CMD); // Set SEG Output Current Brightness
OLED_WR_Byte(0xA1,OLED_CMD);//--Set SEG/Column Mapping 0xa0左右反置 0xa1正常
OLED_WR_Byte(0xC8,OLED_CMD);//Set COM/Row Scan Direction 0xc0上下反置 0xc8正常
OLED_WR_Byte(0xA6,OLED_CMD);//--set normal display
OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)
OLED_WR_Byte(0x3f,OLED_CMD);//--1/64 duty
OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset Shift Mapping RAM Counter (0x00~0x3F)
OLED_WR_Byte(0x00,OLED_CMD);//-not offset
OLED_WR_Byte(0xd5,OLED_CMD);//--set display clock divide ratio/oscillator frequency
OLED_WR_Byte(0x80,OLED_CMD);//--set divide ratio, Set Clock as 100 Frames/Sec
OLED_WR_Byte(0xD9,OLED_CMD);//--set pre-charge period
OLED_WR_Byte(0xF1,OLED_CMD);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
OLED_WR_Byte(0xDA,OLED_CMD);//--set com pins hardware configuration
OLED_WR_Byte(0x12,OLED_CMD);
OLED_WR_Byte(0xDB,OLED_CMD);//--set vcomh
OLED_WR_Byte(0x40,OLED_CMD);//Set VCOM Deselect Level
OLED_WR_Byte(0x20,OLED_CMD);//-Set Page Addressing Mode (0x00/0x01/0x02)
OLED_WR_Byte(0x02,OLED_CMD);//
OLED_WR_Byte(0x8D,OLED_CMD);//--set Charge Pump enable/disable
OLED_WR_Byte(0x14,OLED_CMD);//--set(0x10) disable
OLED_WR_Byte(0xA4,OLED_CMD);// Disable Entire Display On (0xa4/0xa5)
OLED_WR_Byte(0xA6,OLED_CMD);// Disable Inverse Display On (0xa6/a7)
OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel
OLED_WR_Byte(0xAF,OLED_CMD); /*display ON*/
OLED_Clear();
OLED_Set_Pos(0,0);
}
#include"uart.h"
void init_uart0()//UCSWRST(默认置位)置位时才能调整控制寄存器参数
{
P3SEL = 0x30; // P3.4,5 = USCI_A0 TXD/RXD
UCA0CTL1 |= UCSSEL_2; // SMCLK
UCA0BR0 = 65; // 1MHz 9600; (104)decimal = 0x068h
UCA0BR1 = 3; // 1MHz 9600
UCA0MCTL = UCBRS0; // Modulation UCBRSx = 1
UCA0CTL1 &= ~UCSWRST; // **Initialize USCI state machine**
IE2 |= UCA0RXIE; // Enable USCI_A0 RX interrupt
}
void send_data(uchar Data)
{
UCA0TXBUF = Data; // TX -> RXed character
while (!(IFG2&UCA0TXIFG)); // USCI_A0 TX buffer ready?
}
void send_string(char *p)
{
uchar len;
len=strlen(p);
while(len)
{
send_data(*p);
p++;
len--;
}
}
#pragma vector=USCIAB0RX_VECTOR
__interrupt void usart0_rx (void)
{
uchar c;
UCA0TXBUF = UCA0RXBUF;
c= UCA0RXBUF;
}
#include
#include"DataType.h"
uint n=0,m=1;
ulint F=0,f=0;
/****************************************************************************
初始定时器A
******************************************************************************/
void Int_TimerA(void)
{
P1SEL|=BIT0;
P1DIR&=~BIT0;
TACTL|=TASSEL_0+ID_0+MC_2;
TACCTL0|=CCIE;
}
/****************************************************************************
初始定时器B
******************************************************************************/
void Int_TimerB(void)
{
TBCTL|=TBSSEL_2+ID_0+MC_1;
TBCCTL0|=CCIE;
TBCCR0=62499;
}
/****************************************************************************
中断定时器A
******************************************************************************/
#pragma vector=TIMERA0_VECTOR
__interrupt void Timer_A (void)
{
TAR=TBR=0;
if(m>1)
m=m/2;
n=0;
}
/****************************************************************************
中断定时器B
******************************************************************************/
#pragma vector=TIMERB0_VECTOR
__interrupt void Timer_B (void)
{
n++;
if(m==n)
{
f=TAR;
switch(m)
{
case 1:f=128*f;m=2*m;break;
case 2:f=64*f;m=2*m;break;
case 4:f=32*f;m=2*m;break;
case 8:f=16*f;m=2*m;break;
case 16:f=8*f;m=2*m;break;
case 32:f=4*f;m=2*m;break;
case 64:f=2*f;m=2*m;break;
}
TAR=TBR=0;
n=0;
}
}
#include
#include "oled.h"
#include "stdio.h"
#include "stdint.h"
#include "DataType.h"
#include "Clock.h"
#include "Delay.h"
#include "Timer.h"
#include "uart.h"
ulint F1=0;
int i=0;
uchar tmp2[5]={'0','0','0','0','\0'};
void jisuan()
{
tmp2[0]='0'+F1/1000;
tmp2[1]='0'+F1/100%10;
tmp2[2]='0'+F1/10%10;
tmp2[3]='0'+F1%10;
}
int main( void )
{
WDTCTL = WDTPW + WDTHOLD;
//Int_Clk();
init_uart0();
OLED_Init();
OLED_Clear();
OLED_ShowCHinese(8,0,2);
OLED_ShowCHinese(24,0,3);
OLED_ShowChar(40,0,':');
OLED_ShowCHinese(0,6,4);
OLED_ShowCHinese(16,6,5);
OLED_ShowCHinese(32,6,6);
OLED_ShowCHinese(48,6,7);
Int_TimerA();
Int_TimerB();
_EINT();
DelaymS(100);
//send_string("123456785678990-\r\n"); 测试
while(1)
{
F1=f;
OLED_ShowNum(48,0,F1,7,16);
OLED_ShowString(104,0,"hz");
jisuan();
//sprintf((char *)tmp2,"%4d",F1);
send_data(tmp2[0]);
DelaymS(10);
send_data(tmp2[1]);
DelaymS(10);
send_data(tmp2[2]);
DelaymS(10);
send_data(tmp2[3]);
DelaymS(10);
}
}
#include
#include"DataType.h"
/****************************************************************************
延时250uS
******************************************************************************/
void Delay250uS(uint X)
{
uint i,j;
for(i=0;i<X;i++)
for(j=0;j<2000;j++);
}
/****************************************************************************
延时1mS
******************************************************************************/
void DelaymS(uint X)
{
uint i,j;
for(i=0;i<X;i++)
for(j=0;j<8000;j++);
}
/****************************************************************************
延时1S
******************************************************************************/
void DelayS(uint X)
{
uint i;
ulint j;
for(i=0;i<X;i++)
for(j=0;j<8000000;j++);
}
#ifndef __DATATYPE_H
#define __DATATYPE_H
#define uint unsigned int
#define uchar unsigned char
#define ushort unsigned short
#define ulint unsigned long int
#define ldouble long double
#endif
这个时钟可以选择打开或者注释掉也行,因为在这里时钟咱们都配置好了,具体我也不清楚proteus下面的是怎么对这个解释,我的理解就是,系统时钟都通过手动进行配置完成,使用内部资源的时候,只需要对不同的时钟进行选择,所以这里时钟配置与否都不影响工作。
#include
#include
#include"DataType.h"
/****************************************************************************
初始化时钟
******************************************************************************/
void Int_Clk(void)
{
uchar i;
BCSCTL1&=~XT2OFF; //开启XT2振荡器
BCSCTL2|=SELM_2+SELS; //选择MCLK时钟源为XT2CLK;选择SMCLK时钟源为XT2CLK
do
{
IFG1&=~OFIFG;
for(i=0;i<100;i++)
_NOP();
}
while((IFG1&OFIFG)!=0);
IFG1&=~OFIFG;
}
这里主要对main函数中的操作进行了调整,其他的可以选择性的注释,接收机只用到了这些文件
同上,
同上,
同上,其实上面发送的时候中断那里可以注释掉。这里加以说明
#include"uart.h"
void init_uart0()//UCSWRST(默认置位)置位时才能调整控制寄存器参数
{
P3SEL = 0x30; // P3.4,5 = USCI_A0 TXD/RXD
UCA0CTL1 |= UCSSEL_2; // SMCLK
UCA0BR0 = 65; // 1MHz 9600; (104)decimal = 0x068h
UCA0BR1 = 3; // 1MHz 9600
UCA0MCTL = UCBRS0; // Modulation UCBRSx = 1
UCA0CTL1 &= ~UCSWRST; // **Initialize USCI state machine**
IE2 |= UCA0RXIE; // Enable USCI_A0 RX interrupt
}
void send_data(uchar Data)
{
UCA0TXBUF = Data; // TX -> RXed character
while (!(IFG2&UCA0TXIFG)); // USCI_A0 TX buffer ready?
}
void send_string(char *p)
{
uchar len;
len=strlen(p);
while(len)
{
send_data(*p);
p++;
len--;
}
}
#include
#include "oled.h"
#include "stdio.h"
#include "stdint.h"
#include "DataType.h"
#include "Clock.h"
#include "Delay.h"
#include "Timer.h"
#include "uart.h"
ulint F1=0;
int i=0;
uint cnt=0;
uchar tmp2[5];
int main( void )
{
WDTCTL = WDTPW + WDTHOLD;
//Int_Clk();
init_uart0();
OLED_Init();
OLED_Clear();
OLED_ShowCHinese(8,0,2);
OLED_ShowCHinese(24,0,3);
OLED_ShowChar(40,0,':');
OLED_ShowCHinese(0,6,4);
OLED_ShowCHinese(16,6,5);
OLED_ShowCHinese(32,6,8);
OLED_ShowCHinese(48,6,9);
//Int_TimerA();
//Int_TimerB();
_EINT();
//DelaymS(100);
//send_string("123456785678990-\r\n"); //测试
while(1)
{
//F1=f;
OLED_ShowString(104,0,"hz");
//jisuan();
//sprintf((char *)tmp2,"%4d",F1);
if(cnt==4){
cnt=0;
send_string(tmp2);
OLED_ShowChar(48,0,tmp2[0]);
OLED_ShowChar(56,0,tmp2[1]);
OLED_ShowChar(64,0,tmp2[2]);
OLED_ShowChar(72,0,tmp2[3]);
//OLED_ShowString(48,0,tmp2);
}
//Delay250uS(200);
}
}
#pragma vector=USCIAB0RX_VECTOR
__interrupt void usart0_rx (void)
{
uchar c;
//RxFlag
if(UCA0RXIFG==1)
{
UCA0TXBUF = UCA0RXBUF;
//UCA0RXIFG =0;
c= UCA0RXBUF;
if( cnt < 5 && c != '\0') //判断接收结束
{
if(cnt == 0)
for(i = 0; i < 5;i ++) //清空接收缓存
tmp2[i] = '0';
if(c-'0'==0)
tmp2[cnt] = '0';
else
tmp2[cnt] = c; //将数据存入存储
cnt++;
}
else
{
cnt = 0;
}
}
/**/
}
工程链接