📄 main.c
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/******************************************************************************************/
/* */
/* Controller Program V1.4(四字) */
/* */
/* P3.4、P3.3: 11-RAM, 01-FLASH, 10-245_E, 00-REST */
/* RAM:32K FLASH:512K CPU_RAM:4K */
/* ADDR: RAM-0x0000～0x7fff FLASH- (0x0000～0xffff)*8: P1.2、P1.1、P1.0 */
/* P1.3:XLAT P1.4:BLANK P3.5:CPLD_SEL P1.7:Data_sel P1.5、P1.6: on standby */
/* P3.2:MAX485_con */
/* Baud:4800pbs */
/* */
/* */
/******************************************************************************************/
#pragma small
#include <reg52.h>
#define DISP_SIZE 128 //the length of disp_ram:16*2*4
#define HIGH 1
#define LOW 0
void init_sys();
void init_ram();
void init_serial_port();
void init_disp();
void get_disp_word();
void get_zimo();
void init_cpld();
void left_move();
void right_move();
void up_move();
void down_move();
void disp_static();
void disp_ram();
void init_interrupt();
void timer();
//void example();
void wait();
sbit CPLD_SEL = 0xb5;
sbit DATA_SEL = 0x97;
sbit XLAT = 0x93;
sbit BLANK = 0x94;
sbit MAX485 = 0xb2;
sbit SDA = 0x95;
sbit SCL = 0x96;
sbit SEL1 = 0xb4;
sbit SEL0 = 0xb3;
sbit FLASH2 = 0x92;
sbit FLASH1 = 0x91;
sbit FLASH0 = 0x90;
unsigned char xdata * disp_ram_addr; //disp_ram addr
unsigned char xdata * temp_ram_addr; //zimo addr
unsigned char xdata * hzk_addr; //hzk addr
unsigned char xdata * asczk_addr; //ascii addr
unsigned char xdata * disp_word_addr; //disp_word addr
unsigned char xdata * disp_word_length; //disp_word_length
unsigned char xdata * word_length_addr; //word_length_addr
unsigned char data control_word; //board control word
unsigned int data word_length; //disp_word_length
unsigned long data temp_counter; //shift counter
unsigned char pdata temp[16]; //one row data
unsigned char data move_speed; //disp speed
unsigned char data speed_counter; //speed counter
unsigned char data disp_word; //disp word per scan
unsigned char xdata * write_addr; //cpld data addr
unsigned char xdata * read_addr; //245_e controller data addr
//unsigned int data count; //interrupt counter
unsigned char data disp_counter;
main()
{
init_sys();
init_ram();
init_serial_port();
get_disp_word();
get_zimo();
init_disp();
//disp_static();
init_cpld();
//init_interrupt();
while (1) {
CPLD_SEL=LOW;
BLANK=LOW;
if (speed_counter==move_speed) {
left_move();
//right_move();
//up_move();
//down_move();
speed_counter=0;
}
speed_counter++;
disp_ram();
MAX485=~MAX485;
}
}
void init_sys()
{
//following is init of system
CPLD_SEL = LOW; //CPLD is not be selected
DATA_SEL = HIGH; //RED DATA is be selected
XLAT = LOW; //Latch
BLANK = LOW; //OE no valid
MAX485 = HIGH; //RS485 is set to transmit
SDA = LOW; //I2C data is 0
SCL = LOW; //I2C scl
SEL1 = HIGH;
SEL0 = HIGH; //RAM_CE is be selected
FLASH2 = LOW;
FLASH1 = LOW;
FLASH0 = LOW; //FLASH_0 is be selected
//following is setup of address
hzk_addr = 0x100; //hzk addr pointer FLASH2、FLASH1、FLASH0= 0 0 0
asczk_addr = 0x100; //asczk addr pointer FLASH2、FLASH1、FLASH0= 1 1 0
disp_word_addr = 0x100; //disp_word pointer FLASH2、FLASH1、FLASH0= 1 1 1
disp_ram_addr = 0x100; //disp_ram_addr_pointer,length=0x400 RAM
temp_ram_addr = 0x600; //swap_ram_addr_pointer,length=disp_word_length * 32 RAM
write_addr = 0x580; //write cpld_data address CPLD
read_addr = 0x581; //read 245_e control_word address 245_E
word_length_addr =0x80; // RAM
//followinf is init of variable
word_length = 0;
temp_counter = 0;
move_speed = 1;
speed_counter = 0;
control_word = 0x00;
disp_counter = 0x00;
}
void init_ram()
{
unsigned char xdata * addr;
unsigned int counter;
addr = 0x00;
for (counter=0;counter<0x8000;counter++) {
*(addr+counter)=0x00;
}
}
void init_serial_port()
{
//following is init of serial_port
TMOD = 0x20; //定时器T1工作在方式2
TL1 = 0xf3; //初值为0xf3 波特率为14400
TH1 = 0xf3; //初值为0xf3 波特率为14400
SCON=0x50; //serial port control register
/* SM0 SM1-> 0 1 :方式1 SM2->0:单机对单机 REN->1:允许接收
TB8->0:不发送数据第9位 RB8->1:不接收数据第9位 TI->0:发送中断标志复位 RI->1:接收中断标志复位*/
PCON = 0x80; //传输速率加倍
TR1 = HIGH; //启动T1
ES=LOW;
EA=LOW;
}
void get_disp_word()
{
unsigned int data counter=0;
disp_word=0xff;
SEL1=HIGH;
SEL0=LOW;
FLASH2=HIGH;
FLASH1=HIGH;
FLASH0=HIGH;
for (counter=0;counter<0xff;counter++){
control_word= *(read_addr);
wait();
}
SEL1=LOW;
SEL0=HIGH;
if ((control_word&0x80)==0x80) {
while (disp_word!=0x00) {
while (RI == 0);
RI=0;
disp_word=SBUF;
*(disp_word_addr+word_length)=disp_word;
word_length++;
}
SBUF=0x55;
while (!TI);
TI=0;
word_length--;
word_length=word_length/2;
*(word_length_addr) = word_length%256;
*(word_length_addr+1) = word_length/256;
}
else
{
word_length=*(word_length_addr+1)*256+*(word_length_addr);
}
}
void get_zimo()
{
unsigned char data mat[16][2]; //one chinese word zimo
unsigned char data qu_ma=0x00,wei_ma=0x00,i=0x00,j=0x00;
unsigned char data flash_bit=0; //FLASH select
unsigned long data seek=0x00;
unsigned int data word_counter=0;
for (j=0;j<16;j++)
for (i=0;i<2;i++)
mat[j][i]=0x00;
word_length=4;
word_counter=word_length;
while (word_counter>0) {
SEL1=LOW;SEL0=HIGH; //select flash
FLASH2=HIGH;FLASH1=HIGH;FLASH0=HIGH; //chinese word address
qu_ma=*(disp_word_addr)-0xa0;
wei_ma=*(disp_word_addr+1)-0xa0;
seek=94*(qu_ma-1)+(wei_ma-1)*32;
flash_bit=(seek+0x100)/0x10000;
FLASH2=flash_bit&0x04;
FLASH1=flash_bit&0x02;
FLASH0=flash_bit&0x01;
hzk_addr=seek+0x100-((seek+0x100)/0x10000)*0x10000;
for (j=0;j<16;j++)
for (i=0;i<2;i++)
mat[j][i]=*(hzk_addr+j*2+i);
SEL1=HIGH;SEL0=HIGH; //select ram
for (j=0;j<16;j++)
for (i=0;i<2;i++)
//*(temp_ram_addr+j*2+i)=mat[j][i];
*(temp_ram_addr+j*2+i)=0x55;
temp_ram_addr=temp_ram_addr+32;
disp_word_addr=disp_word_addr+2;
word_counter--;
}
SEL1=HIGH;SEL0=HIGH;
//example();
temp_ram_addr=0x600;
disp_word_addr=0x100;
}
void init_disp()
{
unsigned char data counter;
//for (counter=0;counter<DISP_SIZE;counter++) *(disp_ram_addr+counter)=counter;
for (counter=0;counter<DISP_SIZE;counter++) *(disp_ram_addr+counter)=0x00;
for (counter=0;counter<16;counter++) temp[counter]=0x00;
//for (counter=0;counter<16;counter++) temp[counter]=*(temp_ram_addr+counter*2);
disp_word=0x00;
}
void init_interrupt()
{
/* T0工作在方式2,fosc=36MHz, T=10ms,则TC=65536-10000/(1/3)=35536 (0x8ad0) */
/* fosc=12MHz,则TC=55536(0xd8f0)*/
TMOD=TMOD|0x01;//T0工作在方式1
TH0=0xc1; //定时器T0初值
TL0=0x80;
EA=1; //开中断
ET0=1; //允许T0中断
TR0=1; //启动T0
}
void timer() interrupt 1 using 2 //中断源为1(T0),使用寄存器组2
{
TH0=0xc1; //重装定时器T0初值
TL0=0x80;
/*
if (speed_counter==move_speed) {
left_move();
//right_move();
//up_move();
//down_move();
speed_counter=0;
}
speed_counter++;*/
//left_move();
//speed_counter++;
disp_ram();
MAX485=~MAX485;
}
void init_cpld()
{
SEL1=HIGH;
SEL0=HIGH;
SDA = LOW;
CPLD_SEL=HIGH;
wait();
SDA = HIGH;
}
void left_move()
{
unsigned char data i,j;
if (temp_counter>=(word_length*16+64))
temp_counter=0;
if ((temp_counter%8)==0) {
if ((temp_counter%16)==0)
for (j=0;j<16;j++) temp[j]=*(temp_ram_addr+j*2+temp_counter*2);
else
for (j=0;j<16;j++) temp[j]=*(temp_ram_addr+j*2+temp_counter*2-15);
}
temp_counter++;
if (temp_counter>word_length*16)
for (j=0;j<16;j++) temp[j]=0x00;
for (j=0;j<16;j++)
for (i=0;i<7;i++)
*(disp_ram_addr+j*8+i)=((*(disp_ram_addr+j*8+i)<<1)&0xfe)|((*(disp_ram_addr+j*8+i+1)>>7)&0x01);
for (j=0;j<16;j++)
*(disp_ram_addr+7+j*8)=((*(disp_ram_addr+7+j*8)<<1)&0xfe)|((temp[j]>>7)&0x01);
for (j=0;j<16;j++) temp[j]=temp[j]<<1;
}
void right_move()
{/*
unsigned char data i,j;
if (temp_counter>=(word_length*16+64))
temp_counter=0;
if ((temp_counter%8)==0) {
if ((temp_counter%16)==0)
for (j=0;j<16;j++) temp[j]=*(temp_ram_addr+j*2+1+temp_counter*2);
else
for (j=0;j<16;j++) temp[j]=*(temp_ram_addr+j*2+temp_counter*2-16);
}
temp_counter++;
for (j=0;j<16;j++)
for (i=7;i>0;i--)
*(disp_ram_addr+j*8+i)=((*(disp_ram_addr+j*8+i)>>1)&0x7f)|((*(disp_ram_addr+j*8+i-1)<<7)&0x80);
for (j=0;j<16;j++)
*(disp_ram_addr+j*8)=((*(disp_ram_addr+j*8)>>1)&0x7f)|((temp[j]<<7)&0x80);
for (j=0;j<16;j++) temp[j]=temp[j]>>1;*/
}
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