Subversion Repositories usb_nand_reader

#line 1 "H:/MINI32/MINI-32 Examples/MINI-32 mikroC PRO for PIC32 Examples/MINI32_NAND_Controller/NandDataLine.c"

#line 1 "h:/mini32/mini-32 examples/mini-32 mikroc pro for pic32 examples/mini32_nand_controller/nanddataline.h"

void init_nand_data_line();

void init_nand_control_line();

void data_line_write_byte(unsigned char b);

unsigned char data_line_read_byte();

#line 5 "H:/MINI32/MINI-32 Examples/MINI-32 mikroC PRO for PIC32 Examples/MINI32_NAND_Controller/NandDataLine.c"

sbit nand_b0 at LATE2_bit;

sbit nand_b1 at LATE3_bit;

sbit nand_b2 at LATG7_bit;

sbit nand_b3 at LATG8_bit;

sbit nand_b4 at LATF5_bit;

sbit nand_b5 at LATF4_bit;

sbit nand_b6 at LATE4_bit;

sbit nand_b7 at LATE5_bit;

void init_nand_data_line()

{

 TRISE = 0;

 TRISF = 0;

 TRISG = 0;

 LATE = 0;

 LATF = 0;

 LATG = 0;

 nand_b0 = 0;

 nand_b1 = 0;

 nand_b2 = 0;

 nand_b3 = 0;

 nand_b4 = 0;

 nand_b5 = 0;

 nand_b6 = 0;

 nand_b7 = 0;

}

int data_line_last_op =  2 ;

void data_line_write_byte(unsigned char b)

{

 if(data_line_last_op !=  1 )

 {

 TRISE2_bit = 0; TRISE3_bit = 0; TRISE4_bit = 0; TRISE5_bit = 0;

 TRISF4_bit = 0; TRISF5_bit = 0;

 TRISG7_bit = 0; TRISG8_bit = 0;

 data_line_last_op =  1 ;

 }

 nand_b0 = (b) & 1;

 nand_b1 = (b >> 1) & 1;

 nand_b2 = (b >> 2) & 1;

 nand_b3 = (b >> 3) & 1;

 nand_b4 = (b >> 4) & 1;

 nand_b5 = (b >> 5) & 1;

 nand_b6 = (b >> 6) & 1;

 nand_b7 = (b >> 7) & 1;

 asm NOP;

 asm NOP;

 asm NOP;

}

unsigned char data_line_read_byte()

{

 unsigned char d = 0;

 if(data_line_last_op !=  0 )

 {

 TRISE2_bit = 1; TRISE3_bit = 1; TRISE4_bit = 1; TRISE5_bit = 1;

 TRISF4_bit = 1; TRISF5_bit = 1;

 TRISG7_bit = 1; TRISG8_bit = 1;

 data_line_last_op =  0 ;

 }

 d |= (unsigned char)PORTE.B2;

 d |= ((unsigned char)PORTE.B3 << 1);

 d |= ((unsigned char)PORTG.B7 << 2);

 d |= ((unsigned char)PORTG.B8 << 3);

 d |= ((unsigned char)PORTF.B5 << 4);

 d |= ((unsigned char)PORTF.B4 << 5);

 d |= ((unsigned char)PORTE.B4 << 6);

 d |= ((unsigned char)PORTE.B5 << 7);

 return d;

}