URL https://opencores.org/ocsvn/mips789/mips789/trunk

Subversion Repositories mips789

[/] [mips789/] [tags/] [arelease/] [Clib/] [dvc_lib.c] - Blame information for rev 10

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#include "dvc_lib.h"
void __inline dis_byte(unsigned char data)
{
    SEG7LED=data ;
}
 
void dly_us(unsigned int us)
{
    int i ;
    while(us--)
    {
        i=FRQ/1000000/3-2 ;
        while(i--);
        //delay 1us
    }
}
 
void uart0_putc(unsigned char data)
{
    while((STATUS&(1<<2))!=0);
    UART0_DATA=data ;
}
unsigned char uart0_getc(void)
{
    unsigned char ret=0 ;
    while((STATUS&(1<<3))==0);
    ret=UART0_DATA ;
    set_bit(CMD,1);
    set_bit(CMD,1);
    clr_bit(CMD,1);
    return ret ;
}
unsigned char enqire_rxd(void)
{
    return(STATUS&(1<<3))?1:0 ;
}
 
void uart0_putstr(char*str)
{
    while(1)if(*str=='\0')return ;
    else uart0_putc(*str++);
}
 
void __inline led1_on(void)
{
    CMD=CMD&(~(1<<5));
}
void __inline led1_off(void)
{
    CMD=CMD|(1<<5);
}
void __inline led2_on(void)
{
    CMD=CMD&(~(1<<6));
}
void __inline led2_off(void)
{
    CMD=CMD|(1<<6);
}
 
//lcd part
 
void LCD_init(void)
{
    char i=3 ;
    CLEARSCREEN ;
    //clear screen
    while(i--)
    {
        LCD_en_command(DATA_MODE);
        //set 8 bit data transmission mode
        dly_us(LCD_INIT_US);
    }
    LCD_en_command(OPEN_SCREEN);
    //open display (enable lcd display)
    dly_us(LCD_DLY_US);
    LCD_en_command(DISPLAY_ADDRESS);
    //set lcd first display address
    dly_us(LCD_DLY_US);
    CLEARSCREEN ;
    //clear screen
    dly_us(LCD_DLY_US);
}
 
void LCD_en_command(unsigned char command)
{
    LCDDATA=command ;
    clr_bit(CMD,2);
    // LCD1602_RS=LOW;
    clr_bit(CMD,3);
    //LCD1602_RW=LOW;
    clr_bit(CMD,4);
    //LCD1602_EN=LOW;
    dly_us(LCD_DLY_US);
    set_bit(CMD,4);
    //LCD1602_EN=HIGH;
}
 
void LCD_en_dat(unsigned char dat)
{
    LCDDATA=dat ;
    set_bit(CMD,2);
    //LCD1602_RS=HIGH;
    clr_bit(CMD,3);
    //LCD1602_RW=LOW;
    clr_bit(CMD,4);
    //LCD1602_EN=LOW;
    dly_us(LCD_DLY_US);
    set_bit(CMD,4);
    //LCD1602_EN=HIGH;
}
 
void LCD_set_xy(unsigned char x,unsigned char y)
{
    unsigned char address ;
    if(y==LINE1)
    address=LINE1_HEAD+x ;
    else
    address=LINE2_HEAD+x ;
    LCD_en_command(address);
}
 
void LCD_write_char(unsigned x,unsigned char y,unsigned char dat)
{
    LCD_set_xy(x,y);
    LCD_en_dat(dat);
}
 
void LCD_write_string(unsigned char X,unsigned char Y,unsigned char*s)
{
    LCD_set_xy(X,Y);
    while(*s)
    {
        LCD_en_dat(*s++);
    }
}
 
void download()
{
    unsigned char*addr=(void*)0 ;
    uart0_putstr((char*)"This is MIPS789 Running.\n I am ready to rcv program...\n");
    dis_byte(0xcc);
    //attenions please'!'
    while(uart0_getc()!='!')uart0_putc((unsigned char)('O'));
    //'O'k .i am ready
    while(1)
    {
        *addr=(unsigned char)uart0_getc();
        dis_byte((unsigned char)(*addr++));
    }
}
 
void tmr_en(unsigned int cntr)
{
    set_bit(CMD,8);
    TMR_DATA=cntr ;
    tmr_clr();
}
 
void tmr_disen(void)
{
    clr_bit(CMD,8);
    clr_bit(CMD,7);
}
 
void tmr_clr(void)
{
    set_bit(CMD,7);
    set_bit(CMD,7);
    clr_bit(CMD,7);
    clr_bit(CMD,7);
}
 
unsigned int  read_tmr()
{
    return TMR_DATA ;
}
 
 
unsigned char get_key1()
{
    return(STATUS&1)?1:0 ;
}
 
unsigned char get_key2()
{
    return(STATUS&(1<<1))?1:0 ;
}

Line No.	Rev	Author	Line
1	10	mcupro	`#include "dvc_lib.h"`
2			`void __inline dis_byte(unsigned char data)`
3			`{`
4			`SEG7LED=data ;`
5			`}`
6
7			`void dly_us(unsigned int us)`
8			`{`
9			`int i ;`
10			`while(us--)`
11			`{`
12			`i=FRQ/1000000/3-2 ;`
13			`while(i--);`
14			`//delay 1us`
15			`}`
16			`}`
17
18			`void uart0_putc(unsigned char data)`
19			`{`
20			`while((STATUS&(1<<2))!=0);`
21			`UART0_DATA=data ;`
22			`}`
23			`unsigned char uart0_getc(void)`
24			`{`
25			`unsigned char ret=0 ;`
26			`while((STATUS&(1<<3))==0);`
27			`ret=UART0_DATA ;`
28			`set_bit(CMD,1);`
29			`set_bit(CMD,1);`
30			`clr_bit(CMD,1);`
31			`return ret ;`
32			`}`
33			`unsigned char enqire_rxd(void)`
34			`{`
35			`return(STATUS&(1<<3))?1:0 ;`
36			`}`
37
38			`void uart0_putstr(char*str)`
39			`{`
40			`while(1)if(*str=='\0')return ;`
41			`else uart0_putc(*str++);`
42			`}`
43
44			`void __inline led1_on(void)`
45			`{`
46			`CMD=CMD&(~(1<<5));`
47			`}`
48			`void __inline led1_off(void)`
49			`{`
50			`CMD=CMD\|(1<<5);`
51			`}`
52			`void __inline led2_on(void)`
53			`{`
54			`CMD=CMD&(~(1<<6));`
55			`}`
56			`void __inline led2_off(void)`
57			`{`
58			`CMD=CMD\|(1<<6);`
59			`}`
60
61			`//lcd part`
62
63			`void LCD_init(void)`
64			`{`
65			`char i=3 ;`
66			`CLEARSCREEN ;`
67			`//clear screen`
68			`while(i--)`
69			`{`
70			`LCD_en_command(DATA_MODE);`
71			`//set 8 bit data transmission mode`
72			`dly_us(LCD_INIT_US);`
73			`}`
74			`LCD_en_command(OPEN_SCREEN);`
75			`//open display (enable lcd display)`
76			`dly_us(LCD_DLY_US);`
77			`LCD_en_command(DISPLAY_ADDRESS);`
78			`//set lcd first display address`
79			`dly_us(LCD_DLY_US);`
80			`CLEARSCREEN ;`
81			`//clear screen`
82			`dly_us(LCD_DLY_US);`
83			`}`
84
85			`void LCD_en_command(unsigned char command)`
86			`{`
87			`LCDDATA=command ;`
88			`clr_bit(CMD,2);`
89			`// LCD1602_RS=LOW;`
90			`clr_bit(CMD,3);`
91			`//LCD1602_RW=LOW;`
92			`clr_bit(CMD,4);`
93			`//LCD1602_EN=LOW;`
94			`dly_us(LCD_DLY_US);`
95			`set_bit(CMD,4);`
96			`//LCD1602_EN=HIGH;`
97			`}`
98
99			`void LCD_en_dat(unsigned char dat)`
100			`{`
101			`LCDDATA=dat ;`
102			`set_bit(CMD,2);`
103			`//LCD1602_RS=HIGH;`
104			`clr_bit(CMD,3);`
105			`//LCD1602_RW=LOW;`
106			`clr_bit(CMD,4);`
107			`//LCD1602_EN=LOW;`
108			`dly_us(LCD_DLY_US);`
109			`set_bit(CMD,4);`
110			`//LCD1602_EN=HIGH;`
111			`}`
112
113			`void LCD_set_xy(unsigned char x,unsigned char y)`
114			`{`
115			`unsigned char address ;`
116			`if(y==LINE1)`
117			`address=LINE1_HEAD+x ;`
118			`else`
119			`address=LINE2_HEAD+x ;`
120			`LCD_en_command(address);`
121			`}`
122
123			`void LCD_write_char(unsigned x,unsigned char y,unsigned char dat)`
124			`{`
125			`LCD_set_xy(x,y);`
126			`LCD_en_dat(dat);`
127			`}`
128
129			`void LCD_write_string(unsigned char X,unsigned char Y,unsigned char*s)`
130			`{`
131			`LCD_set_xy(X,Y);`
132			`while(*s)`
133			`{`
134			`LCD_en_dat(*s++);`
135			`}`
136			`}`
137
138			`void download()`
139			`{`
140			`unsigned charaddr=(void)0 ;`
141			`uart0_putstr((char*)"This is MIPS789 Running.\n I am ready to rcv program...\n");`
142			`dis_byte(0xcc);`
143			`//attenions please'!'`
144			`while(uart0_getc()!='!')uart0_putc((unsigned char)('O'));`
145			`//'O'k .i am ready`
146			`while(1)`
147			`{`
148			`*addr=(unsigned char)uart0_getc();`
149			`dis_byte((unsigned char)(*addr++));`
150			`}`
151			`}`
152
153			`void tmr_en(unsigned int cntr)`
154			`{`
155			`set_bit(CMD,8);`
156			`TMR_DATA=cntr ;`
157			`tmr_clr();`
158			`}`
159
160			`void tmr_disen(void)`
161			`{`
162			`clr_bit(CMD,8);`
163			`clr_bit(CMD,7);`
164			`}`
165
166			`void tmr_clr(void)`
167			`{`
168			`set_bit(CMD,7);`
169			`set_bit(CMD,7);`
170			`clr_bit(CMD,7);`
171			`clr_bit(CMD,7);`
172			`}`
173
174			`unsigned int read_tmr()`
175			`{`
176			`return TMR_DATA ;`
177			`}`
178
179
180			`unsigned char get_key1()`
181			`{`
182			`return(STATUS&1)?1:0 ;`
183			`}`
184
185			`unsigned char get_key2()`
186			`{`
187			`return(STATUS&(1<<1))?1:0 ;`
188			`}`

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[/] [mips789/] [tags/] [arelease/] [Clib/] [dvc_lib.c] - Blame information for rev 10