📄 link1.c
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//-----------------------------------------------------------------------------
// F320_optics.c for 景老师，光学准直仪器
//-----------------------------------------------------------------------------
// Copyright 2008 USST Optics & Electronics Laboratories.
// Writer:Zhang Xuedian
// E-mail:zhangxuedian@hotmail.com
// Tel: 021-55271048
// Program Description:
//
// This program demonstrates how to configure the C8051F320 to use routines
// in STDIO.h to write to and read from the UART interface. The program
// reads a character using the STDIO routine getkey(), outputs that character
// to the screen, and then outputs the ASCII hex value of that character.
// FID: 32X000088
// Target: C8051F32x
// Tool chain: Keil C51 8.12 / Keil EVAL C51
// Command Line: None
//
// Release 1.0
// -Initial Revision (PD)
// -14 July, 2008
//2009.2.8
//-----------------------------------------------------------------------------
// Includes
//-----------------------------------------------------------------------------
#include <c8051f320.h> // SFR declarations
#include <stdio.h>
#include <stdlib.h>
#include <intrins.h>
#include <absacc.h>
#define FLOG_USE_FLASH;
volatile bit gbTmr2Flag = 0;
void Delay(unsigned int MS);
unsigned char ReadStringUART(char *Dest,unsigned char BufferLen);
#ifdef FLOG_USE_FLASH
#define FLASH_PAGESIZE 512
#define FLOG_PAGE_ADDR 0x03A00L // last usable flash page
// #define MAX_USER_RESPONSE_LEN 20
#endif
//-----------------------------------------------------------------------------
// Global CONSTANTS
//-----------------------------------------------------------------------------
#define SYSCLK 12000000 // SYSCLK frequency in Hz
#define BAUDRATE 9600 // Baud rate of UART in bps
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Pin Declarations
//-----------------------------------------------------------------------------
//CA12864K 串行C8051通讯
//***************************************************************************
//连线表: *
//SCK=P0.0 SID=P0.1 Reset=RC in Board CS=not used*
//***************************************************************************
sbit SCK=P0^0;
sbit SID=P0^1;
sbit sel0=P1^0;
sbit sel1=P1^1;
sbit xReady=P1^2;// input
sbit yReady=P1^3;//define pin as input mode
sbit LampXY=P1^4;//input
#define LampX 1
#define LampY 0
//按键连接到p1.5、p1.6、p1.7均为开漏输输入
sbit key1=P1^5;// SW1 ='0' means switch pressed
sbit key2=P1^6;
sbit key3=P1^7;
//积分时间,output
sbit steps0=P0^6;
sbit steps1=P0^7;
//-----------------------------------------------------------------------------
unsigned char code AC_TABLE[]={
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, //第一行汉字
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97, //第二行汉字
0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f, //第三行汉字
0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f }; //第四行汉字
//unsigned char code str1[]= "Welcome Optics!";
//-----------------------------------------------------------------------------
// Function PROTOTYPES
//-----------------------------------------------------------------------------
void SYSCLK_Init (void);
void UART0_Init (void);
void PORT_Init (void);
//-----------------------------------------------------------------------------
// Initialization Subroutines
//-----------------------------------------------------------------------------
//------------------------------------0-----------------------------------------
// PORT_Init
//-----------------------------------------------------------------------------
// This function configures the crossbar and ports pins, GPIO ports
//
// To configure a pin as a digital input, the pin is configured as digital
// and open-drain and the port latch should be set to a '1'. The weak-pullups
// are used to pull the pins high. Pressing the switch pulls the pins low.
//
// To configure a pin as a digital output, the pin is configured as digital
// and push-pull.
//
// An output pin can also be configured to be an open-drain output if system
// requires it. For example, if the pin is an output on a multi-device bus,
// it will probably be configured as an open-drain output instead of a
// push-pull output. For the purposes of this example, the pin is configured
// as push-pull output because the pin in only connected to an LED.
//作为数字输入采用开漏形式，先将端口寄存器值＂１＂，然后在读取端口状态．
//作为数字输出采用推挽形式，且内部弱上拉，如果外部有上拉电阻，需要配置成开漏形式
// SCLK=P0.0 SID=P0.1
// P0.0 digital open-drain SCK OUTPUT 推挽模式
// P0.1 digital open-drain SID 开漏且弱上拉，读之前，先写1
// P0.2 digital open-drain XPLUSE2 OUTPUT 推挽模式
// P0.3 digital open-drain YPLUSE2 开漏且弱上拉，读之前，先写1
//
//
// P0.4 digital push-pull UART TX OUTPUT
// P0.5 digital open-drain UART RX INPUT
//
// P0.6 digital push-pull INTE TIME OUTPUT
// P0.7 digital push-pull INTE TIME OUTPUT
//------------------------------------------------------------
// P1.0-1 digital push-pull sel OUTPUT
// P1.3 digital open-drain READY BI
// P1.4 digital open-drain Lamp BI
// P1.5-7 digital push-pull KEYS INPUT
//-----------------------------------------------------------
// P2 digital open-drain DATA IN INPUT
//-----------------------------------------------------------------------------
void PORT_Init (void)
{
P0MDOUT |= 0x10; // enable UTX as push-pull output
XBR0 = 0x01; // Enable UART on P0.4(TX) and P0.5(RX)
P0MDIN |= 0xff; // Lower three pins on P0 are digital
P0MDOUT |= 0xff; // Enable LEDs as push-pull outputs=0
// Enable Switches as open-drain=1
P0 |= 0x03; // Set port latches for P0.0 and P0.1 to '1'
steps0=1;
steps1=1;
// btn pins and ext clk pin are inputs, set high impedance
P1MDIN |= 0xFF; // pins on P1 are digital INPUT
P1MDOUT |= 0x00; // Open-drain
P1 |=0xE0; // first write '1' before read p2.key1,key2,key3
//Set port latches for P2 to '1'
P2MDIN |= 0xFF; // pins on P2 are digital INPUT
P2MDOUT |= 0x00; // Open-drain
P2=0xFF; // first write '1' before read p2.
//Set port latches for P2 to '1'
XBR1 = 0x40; // Enable crossbar and enable
// weak pull-ups
}
//-----------------------------------------------------------------------------
// SYSCLK_Init
//-----------------------------------------------------------------------------
//
// Return Value : None
// Parameters : None
//
// This routine initializes the system clock to use the internal oscillator
// at its maximum frequency.
// Also enables the Missing Clock Detector.
//-----------------------------------------------------------------------------
void SYSCLK_Init (void)
{
OSCICN |= 0x83; // Configure internal oscillator for
// its maximum frequency
CLKSEL = 0x20;
RSTSRC = 0x04; // Enable missing clock detector
TCON = 0x40;
TMOD = 0x22;
CKCON = 0x55;
/*
TMR3CN = 0x04;
TMR3RLL = 0x68;
TMR3RLH = 0xC5;
TMR3L = 0xFF;
TMR3H = 0xFF;*/
}
/*
void Tmr3_ISR(void) interrupt INTERRUPT_TIMER3
{
TMR3CN &= ~0x80;
gnTimeTick++;
gnSecTick++;
if (gnSecTick == 100)
{
gnSecTick = 0;
gnSec++;
if (gnSec == 60)
{
gnSec = 0;
gnMin++;
if (gnMin == 60)
{
gnMin = 0;
gnHrs++;
if (gnHrs == 24)
gnHrs = 0;
}
}
}
}
*/
//-----------------------------------------------------------------------------
// UART0_Init
//-----------------------------------------------------------------------------
//
// Return Value : None
// Parameters : None
//
// Configure the UART0 using Timer1, for <BAUDRATE> and 8-N-1.
//-----------------------------------------------------------------------------
void UART0_Init (void)
{
SCON0 = 0x10; // SCON0: 8-bit variable bit rate
// level of STOP bit is ignored
// RX enabled
// ninth bits are zeros
// clear RI0 and TI0 bits
if (SYSCLK/BAUDRATE/2/256 < 1) {
TH1 = -(SYSCLK/BAUDRATE/2);
CKCON &= ~0x0B; // T1M = 1; SCA1:0 = xx
CKCON |= 0x08;
} else if (SYSCLK/BAUDRATE/2/256 < 4) {
TH1 = -(SYSCLK/BAUDRATE/2/4);
CKCON &= ~0x0B; // T1M = 0; SCA1:0 = 01
CKCON |= 0x01;
} else if (SYSCLK/BAUDRATE/2/256 < 12) {
TH1 = -(SYSCLK/BAUDRATE/2/12);
CKCON &= ~0x0B; // T1M = 0; SCA1:0 = 00
} else {
TH1 = -(SYSCLK/BAUDRATE/2/48);
CKCON &= ~0x0B; // T1M = 0; SCA1:0 = 10
CKCON |= 0x02;
}
//TH1 = -156; //(SYSCLK/BAUDRATE/2/4)=-156.25;
// CKCON &= ~0x0B; // T1M = 0; SCA1:0 = 01,9600, 2.44
// CKCON |= 0x01;
TL1 = TH1; // init Timer1
TMOD &= ~0xf0; // TMOD: timer 1 in 8-bit autoreload
TMOD |= 0x20;
TR1 = 1; // START Timer1
TI0 = 1; // Indicate TX0 ready
}
//------------------------------------------------------------------------
//LCM 液晶CA12864K 串行方式
//------------------------------------------------------------------------
//串口发送一个字节
void SendByte(unsigned char Dbyte)
{
unsigned char i;
for(i=0;i<8;i++)
{
SCK = 0;
Dbyte=Dbyte<<1; //左移一位
SID = CY; //移出的位给SID
SCK = 1;
SCK = 0;
}
}
//串口从LCD接受一个字节；仅在读取数据的时候用到
//而读出得数据一次只能读出4bit
/*
unsigned char ReceiveByte(void)
{
unsigned char i,temp1,temp2;
temp1=temp2=0;
for(i=0;i<8;i++)
{
temp1=temp1<<1;
SCK = 0;
SCK = 1;
SCK = 0;
if(SID) temp1++;
}
for(i=0;i<8;i++)
{
temp2=temp2<<1;
SCK = 0;
SCK = 1;
SCK = 0;
if(SID) temp2++;
}
return ((0xf0&temp1)+(0x0f&temp2));
}
void CheckBusy( void )
{
do SendByte(0xfc); //11111,RW(1),RS(0),0
while(0x80&ReceiveByte()); //BF(.7)=1 Busy
}
*/
void WriteCommand( unsigned char Cbyte )
{
//CS = 1;
// CheckBusy();
Delay(1);
SendByte(0xf8); //11111,RW(0),RS(0),0
SendByte(0xf0&Cbyte); //高4位
SendByte(0xf0&Cbyte<<4);//低4位(先执行<<)
//CS = 0;
}
void WriteData( unsigned char Dbyte )
{
//CS = 1;
// CheckBusy();
Delay(1);
SendByte(0xfa); //11111,RW(0),RS(1),0
SendByte(0xf0&Dbyte); //高4位
SendByte(0xf0&Dbyte<<4);//低4位(先执行<<)
//CS = 0;
}
/*
unsigned char ReadData( void )
{
CheckBusy();
SendByte(0xfe); //11111,RW(1),RS(1),0
return ReceiveByte();
}*/
void LcmInit( void )
{
WriteCommand(0x30); //8BitMCU,基本指令集
WriteCommand(0x03); //AC归0,不改变DDRAM内容
WriteCommand(0x0C); //显示ON,游标OFF,游标位置反白OFF
WriteCommand(0x01); //清屏,AC归0
WriteCommand(0x06); //写入时候,游标右移动
}
//图形区和文本区显示在2个不同的RAM区
//文本区清RAM函数
void LcmClearTXT( void )
{
unsigned char i;
WriteCommand(0x30); //8BitMCU，基本指令集
WriteCommand(0x80); //AC归起始位
for(i=0;i<64;i++)
WriteData(0x20); //0x20相同""
}
//写字符串
void PutStr(unsigned char row,unsigned char col,unsigned char *puts)
{
WriteCommand(0x30); //8BitMCU，基本指令集
WriteCommand(AC_TABLE[8*row+col]); //起始位置
while(*puts != '\0') //判断字符串是否显示完毕
{
if(col==8) //判断换行
{ //若不判断，则自动从第一行到第三行
col=0;
row++;
}
if(row==4) row=0; //一屏幕显示完，回到屏左上角
WriteCommand(AC_TABLE[8*row+col]);
WriteData(*puts); //一个汉字要写两次
puts++;
WriteData(*puts);
puts++;
col++;
}
}
/*
//图形区清RAM函数
void LcmClearBMP( void )
{
unsigned char i,j;
WriteCommand(0x34); //8Bit扩充指令集，即使是36H也要写两次
WriteCommand(0x36); //绘图on，基本指令集里边36H不能开绘图
for(i=0;i<32;i++) //12864实际为256x32
{
WriteCommand(0x80|i); //行位置
WriteCommand(0x80); //列位置
for(j=0;j<32;j++) //256/8=32 byte
WriteData(0);
}
}
//绘图函数
void PutBMP(unsigned char *puts)
{
unsigned int x=0;
unsigned char i,j;
WriteCommand(0x34); //8Bit扩充指令集，即使是36H也要写两次
WriteCommand(0x36); //绘图on，基本指令集里边36H不能开绘图
for(i=0;i<32;i++) //12864实际为256x32
{
WriteCommand(0x80|i); //行位置
WriteCommand(0x80); //列位置
for(j=0;j<32;j++) //256/8=32 byte
{ //列位置每行自动加1
WriteData(puts[x]);
x++;
}
}
}
*/
//----------------------------------------------------------------------------
void Delay(unsigned int MS)
{
unsigned char us,usn;
while(MS!=0) //for 12M
{ usn = 2;
while(usn!=0)
{
us=0xf5;
while (us!=0){us--;};
usn--;
}
MS--;
}
}
// flash_ErasePage
// This routine erases the FLASH page containing the linear FLASH address <addr>.
void FlashErasePage (unsigned char xdata * pwrite)
{
bit EA_SAVE = EA; // preserve EA
//char xdata * data pwrite; // FLASH write pointer
EA = 0; // disable interrupts
// change clock speed to slow, then restore later
VDM0CN = 0x80; // enable VDD monitor
RSTSRC = 0x02; // enable VDD monitor as a reset source
//pwrite = (char xdata *) addr;
FLKEY = 0xA5; // Key Sequence 1
FLKEY = 0xF1; // Key Sequence 2
PSCTL |= 0x03; // PSWE = 1; PSEE = 1
VDM0CN = 0x80; // enable VDD monitor
RSTSRC = 0x02; // enable VDD monitor as a reset source
* pwrite = 0; // initiate page erase
PSCTL &= ~0x03; // PSWE = 0; PSEE = 0
EA = EA_SAVE; // restore interrupts
}
//Flash 读写操作
//pwrite为FLASH地址指针，采用xdata强制指明指针类型，以保证采用movx操作
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