FAT File System for Microcontroller

[grex]

fat32 system + 8051

I´m trying to use the avrlib fat and ata files, but don´t know how to configure the pins of a atmega161, does anybody know how to configure the pin out??
The function that reads from the port is

u08 ataReadByte(u08 reg)
{
register u08 ret;
// sbi(MCUCR, SRW); // enable RAM waitstate
ret = *((volatile unsigned char*) ATA_REG_BASE + reg);
// cbi(MCUCR, SRW); // disable RAM waitstate
return ret;
}
but i dont know what ret = *((volatile unsigned char*) ATA_REG_BASE + reg); mean.

 

[Bingo600]

file system microcontroller

I´m trying to use the avrlib fat and ata files, but don´t know how to configure the pins of a atmega161, does anybody know how to configure the pin out??
The function that reads from the port is

u08 ataReadByte(u08 reg)
{
register u08 ret;
// sbi(MCUCR, SRW); // enable RAM waitstate
ret = *((volatile unsigned char*) ATA_REG_BASE + reg);
// cbi(MCUCR, SRW); // disable RAM waitstate
return ret;
}
but i dont know what ret = *((volatile unsigned char*) ATA_REG_BASE + reg); mean.

*((volatile unsigned char*) ATA_REG_BASE + reg)

Is a pointer to the AVR I/O space , with reg as offset,

So that is the line that reads the I/O port , nad assigns the value to the var "ret"

/Bingo

 

[ahmed_abdelhamid]

8051 fat

Hello,
you can get ucos from emule , just search for it.
I don't know if all ucos versions got the fs or not, but
u can get ucos for all controllers from emule.