//lcd初始化程序
void lcdinit()
{
DelayNus(3000);
P2DIR |= BIT0|BIT1|BIT2|BIT3|BIT4|BIT5;
writecom(0x02); // 数据指针清零
//DelayNus(1000);
//writecom(0x28);
//DelayNus(1000);
//writecom(0x28);
//DelayNus(1000);
writecom(0x28);
//DelayNus(1000);
writecom(0x0c);
//DelayNus(1000);
writecom(0x01);
//DelayNus(1000);
writecom(0x06);
//DelayNus(1000);
//writecom(0x80);
}
//ÏÔʾ×Ö·û
void LCD_write_int(unsigned char x,unsigned char y,unsigned char data)
{
unsigned char address; //дµØÖ·
if (y == 0)
{
address = 0x80 + x;
}
else
{
address = 0xc0 + x;
}
writecom( address);
_delay_cycles(1);
writedata(data);
}
//lcd初始化程序
void lcdinit()
{
_delay_cycles(500);
writecom(0x33);
_delay_cycles(100);
writecom(0x32);
_delay_cycles(100);
writecom(0x28);
_delay_cycles(100);
writecom(0x0c);
_delay_cycles(100);
writecom(0x01);
_delay_cycles(100);
writecom(0x06);
_delay_cycles(100);
writecom(0x80);
}
void initlcd(void)
{
_RES = 1; // Set _RES HIGH.
_SCE = 1; // Disable Chip.
_RES = 0; // Reset the LCD.
DelayMs(100); // Wait 100ms.
_RES = 1; // Awake LCD from RESET state.
writecom(0x21); // Activate Chip and H=1.
writecom(0xC2); // Set LCD Voltage to about 7V.
writecom(0x13); // Adjust voltage bias.
writecom(0x20); // Horizontal addressing and H=0.
writecom(0x09); // Activate all segments.
clearram(); // Erase all pixel on the DDRAM.
writecom(0x08); // Blank the Display.
writecom(0x0C); // Display Normal.
cursorxy(0,0); // Cursor Home.
}
//LCDÔÚÈÎÒâλÖÃд×Ö·û´®
//ÁÐx=0~15,ÐÐy=0,1
void LCD_write_string(unsigned char x,unsigned char y,unsigned char *s)
{
unsigned char address; //дµØÖ·
if (y == 0)
{
address = 0x80 + x;
}
else
{
address = 0xc0 + x;
}
writecom(address);
_delay_cycles(1);
while (*s) // дÏÔʾ×Ö·û´®
{
writedata(*s);
_delay_cycles(1);
s++;
}
}
//LCD在任意位置写字符串
//列x=0~15,行y=0,1
void LCD_write_string(unsigned char x,unsigned char y,char *s)
{
unsigned char address; //写地址
if (y == 0)
{
address = 0x80 + x;
}
else
{
address = 0xc0 + x;
}
writecom( address);
__delay_cycles(1);
while (*s) // 显示字符
{
writedata( *s );
__delay_cycles(1);
s++;
}
}
//***************************************************************************
void initLCD()
{
short_dly(SHORT);
writecom(0x30,0); //wake up
short_dly(SHORT);
writecom(0x30,0); //wake up
short_dly(SHORT);
writecom(0x30,0); //wake up
short_dly(SHORT);
writecom(0x39,0); //function set
short_dly(SHORT);
writecom(0x14,0); //internal osc frequency
short_dly(SHORT);
writecom(0x56,0); //power control
short_dly(SHORT);
writecom(0x6D,0); //follower control
short_dly(SHORT);
writecom(0x79,0); //contrast was 70,0
short_dly(SHORT);
writecom(0x0C,0); //display on
short_dly(SHORT);
writecom(0x06,0); //entry mode
short_dly(SHORT);
writecom(0x01,0); //clear
short_dly(SHORT);
}
//**********************************************************************************************
//**********************************************************************************************
//**********************************************************************************************
int main(void)
{
volatile unsigned char data, pos;
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
//if (CALBC1_12MHZ==0xFF || CALDCO_12MHZ == 0xFF)
// while(1); // If calibration constants erased do not load - trap CPU
BCSCTL1 = CALBC1_12MHZ; // Set DCO
DCOCTL = CALDCO_12MHZ;
//**********************************************
//DO NOT CHANGE THE ORDER OF THE FOLLOWING CODE!
port_init();
initLCD();
P4OUT |= BIT1; //LCD backlight on
writecom(0x01, 0);//mode=0 instruction/command, mode=1 data clear display
writecom(0x02, 0);//mode=0 instruction/command, mode=1 data position cursor home home
write_string_to_LCD("DLP Design ", 16);
writecom(0xC0, 0);//mode=0 instruction/command, mode=1 data position cursor to start of second row
write_string_to_LCD("DLP-RFID2 Demo ", 16);
keep_local=0;//if high, keep data returned to demo board (from reader) local instead of forwarding to host PC via USB. if low, send to host PC.
rx_index=0;//init the receive buffer index
run_mode=0;//disable inventories
blkaddr=0;
currentantswstate = ANTSWINT;//init to internal
/* Code showing how to use J2, "SEL" User Defined Jumper
//pullup resistor enabled for P6.7 in port_init();
data = P6IN; //read port 6
data = data & 0x80; //mask off other port bits
if(data>0) //if P6.7 is high (default)
*/
uart_init();
setup_interrupts();
//ping reader twice to sync and stop transmitting 'D's
short_dly(50000);//pause for remainder of packet
ping_reader();//ping for presence of reader and update display
short_dly(50000);//pause for remainder of packet
ping_reader();//ping for presence of reader and update display
short_dly(50000);//pause for remainder of packet
//**********************************************
set_output_mode();
for (;;)
{
if(light_pressed())
P4OUT ^= 0x02; //toggle P4.1
if(ping_pressed())
ping_reader();//ping for presence of reader and update display
if(antsw_pressed())
toggle_antenna_switch();//toggle between internal and external antenna
if(run_pressed())
enter_run_mode();//setup for reading UIDs and set run flag for continuous inventories
if(stop_pressed())
exit_run_mode();//setup for reading UIDs and set run flag for continuous inventories
if(rfoff_pressed())
turn_rf_off();
if(rdblk_pressed())
read_block();
if(run_mode==1)
single_slot_inventory();
}
}
//**************************************************************************************************
void single_slot_inventory()//setup for reading UIDs and set run flag for continuous inventories
{
unsigned char pos, index;
unsigned char uid_buf[20];
//writecom(0x02, 0);//mode=0 instruction/command, mode=1 data home
//write_string_to_LCD("run mode... ", 16);
rx_index=0;//prepare receive index
keep_local=1;//if high, keep data returned to demo board (from reader) local instead of forwarding to host PC via USB. if low, send to host PC.
//send write request
//set up for reading UIDs
pos=0;
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x43;//C
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x33;//3
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x34;//4
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x32;//2
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x32;//2 read UIDs
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
send_buffer(pos);
while(rx_index< 10);
short_dly(20000);
rx_index=0;//ignore return data
for(pos=0; pos<200; pos++)
big_buffer_rx[pos]=0;
//send AGC Toggle
pos=0;
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x39;//9
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x33;//3
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x34;//4
big_buffer_tx[pos++] = 0x46;//F
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
send_buffer(pos);
while(rx_index< 12);
short_dly(20000);
rx_index=0;//ignore return data
for(pos=0; pos<200; pos++)
big_buffer_rx[pos]=0;
//send AM/PM toggle
pos=0;
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x39;//9
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x33;//3
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x34;//4
big_buffer_tx[pos++] = 0x46;//F
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x46;//F
big_buffer_tx[pos++] = 0x46;//F
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
send_buffer(pos);
while(rx_index< 12);
short_dly(9000);
rx_index=0;//ignore return data
while(rx_index>0)
{
rx_index=0;//ignore return data
short_dly(9000);
}
for(pos=0; pos<200; pos++)
big_buffer_rx[pos]=0;
//send single slot inventory request
pos=0;
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x38;//8
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x33;//3
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x34;//4
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x34;//4
big_buffer_tx[pos++] = 0x32;//2
big_buffer_tx[pos++] = 0x36;//6
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
send_buffer(pos);
while(rx_index < 52);//wait for inventory results
short_dly(9000);//pause for remainder of packet
writecom(0x02, 0);//mode=0 instruction/command, mode=1 data home
if(rx_index < 62) //if empty packet [] or multiple tags in fiend
{
write_string_to_LCD("NO TAG FOUND ", 16);
}
else
{
index=65;
for(pos=0; pos<16; pos+=2)
{
uid_buf[pos] = big_buffer_rx[index];
uid_buf[pos+1] = big_buffer_rx[index+1];
index-=2;
}
//send received data to LCD display
for(pos=0; pos<16; pos++)
writecom(uid_buf[pos], 1);//mode=0 instruction/command, mode=1 data C
}
keep_local=0;//if high, keep data returned to demo board (from reader) local instead of forwarding to host PC via USB. if low, send to host PC.
rx_index=0;//prepare receive index
update_lcd_line2();//show line 2
}
//**************************************************************************************************
void read_block()
{
unsigned char pos, index;
unsigned char uid_buf[20];
rx_index=0;//prepare receive index
keep_local=1;//if high, keep data returned to demo board (from reader) local instead of forwarding to host PC via USB. if low, send to host PC.
//send write request
//set up for reading UIDs
pos=0;
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x43;//C
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x33;//3
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x34;//4
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x32;//2
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0 read user memory blocks
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
send_buffer(pos);
while(rx_index< 10);
short_dly(20000);
rx_index=0;//ignore return data
for(pos=0; pos<200; pos++)
big_buffer_rx[pos]=0;
//send AGC Toggle
pos=0;
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x39;//9
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x33;//3
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x34;//4
big_buffer_tx[pos++] = 0x46;//F
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
send_buffer(pos);
while(rx_index< 12);
short_dly(20000);
rx_index=0;//ignore return data
for(pos=0; pos<200; pos++)
big_buffer_rx[pos]=0;
//send AM/PM toggle
pos=0;
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x39;//9
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x33;//3
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x34;//4
big_buffer_tx[pos++] = 0x46;//F
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x46;//F
big_buffer_tx[pos++] = 0x46;//F
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
send_buffer(pos);
while(rx_index< 12);
short_dly(9000);
rx_index=0;//ignore return data
while(rx_index>0)
{
rx_index=0;//ignore return data
short_dly(9000);
}
for(pos=0; pos<200; pos++)
big_buffer_rx[pos]=0;
//build and send the Read block command
pos=0;
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x42;//B
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x33;//3
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x34;//4
big_buffer_tx[pos++] = 0x31;//1
big_buffer_tx[pos++] = 0x38;//8
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x32;//2
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//addr msb
big_buffer_tx[pos++] = 0x30+blkaddr;//addr lsb
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
big_buffer_tx[pos++] = 0x30;//0
send_buffer(pos);
while(rx_index< 12);
short_dly(30000);
writecom(0x02, 0);//mode=0 instruction/command, mode=1 data home
if(rx_index < 41) //if empty packet [] or multiple tags in fiend
{
write_string_to_LCD("NO TAG FOUND ", 16);
}
else
{
index=48;
for(pos=0; pos<8; pos+=2)
{
uid_buf[pos] = big_buffer_rx[index];
uid_buf[pos+1] = big_buffer_rx[index+1];
index-=2;
}
writecom(0x02, 0);//mode=0 instruction/command, mode=1 data home
write_string_to_LCD(" ", 16);
writecom(0x02, 0);//mode=0 instruction/command, mode=1 data home
write_string_to_LCD("BLK ", 4);
write_int_to_LCD(blkaddr);
write_string_to_LCD(": ", 2);
//send received data to LCD display
for(pos=0; pos<8; pos++)
writecom(uid_buf[pos], 1);//mode=0 instruction/command, mode=1 data C
}
blkaddr++;
if(blkaddr>7) blkaddr=0;
keep_local=0;//if high, keep data returned to demo board (from reader) local instead of forwarding to host PC via USB. if low, send to host PC.
rx_index=0;//prepare receive index
update_lcd_line2();//show line 2
}
/*
* Scan the JPEG file for Exif data and parse it.
*/
static int
doit(FILE *fp, const char *fname)
{
int mark, gotapp1, first, rc;
unsigned int len, rlen;
unsigned char *exifbuf;
struct exiftags *t;
long app1;
gotapp1 = FALSE;
first = 0;
exifbuf = NULL;
rc = 0;
while (jpegscan(fp, &mark, &len, !(first++))) {
if (mark != JPEG_M_APP1) {
if (fseek(fp, len, SEEK_CUR))
exifdie((const char *)strerror(errno));
continue;
}
exifbuf = (unsigned char *)malloc(len);
if (!exifbuf)
exifdie((const char *)strerror(errno));
app1 = ftell(fp);
rlen = fread(exifbuf, 1, len, fp);
if (rlen != len) {
fprintf(stderr, "%s: error reading JPEG (length "
"mismatch)\n", fname);
free(exifbuf);
return (1);
}
gotapp1 = TRUE;
t = exifscan(exifbuf, len, FALSE);
if (t && t->props) {
if (bflag || com)
rc = writecom(fp, fname, app1,
findprop(t->props, tags,
EXIF_T_USERCOMMENT), exifbuf, t->md.btiff);
else
rc = printcom(fname, findprop(t->props, tags,
EXIF_T_USERCOMMENT), t->md.btiff);
} else {
fprintf(stderr, "%s: couldn't find Exif properties\n",
fname);
rc = 1;
}
exiffree(t);
free(exifbuf);
}
if (!gotapp1) {
fprintf(stderr, "%s: couldn't find Exif data\n", fname);
return (1);
}
return (rc);
}
void cursorxy(char x, char y)
{
writecom(0x40|(y&0x07)); // Y axis
writecom(0x80|(x&0x7f)); // X axis
}
