int main (void)
{
FSFILE * pointer;
#if defined(SUPPORT_LFN)
char count = 80;
#endif
char * pointer2;
SearchRec rec;
unsigned char attributes;
unsigned char size = 0, i;
// Initialize and configure Primary PLL, and enabled Secondary Oscillator
PLLFBD = 58; /* M = 60 */
CLKDIVbits.PLLPOST = 0; /* N1 = 2 */
CLKDIVbits.PLLPRE = 0; /* N2 = 2 */
OSCTUN = 0;
__builtin_write_OSCCONH(0x03);
__builtin_write_OSCCONL(0x03);
while (OSCCONbits.COSC != 0x3);
while (_LOCK == 0);
// Activate the RTCC module
__builtin_write_RTCWEN();
Nop();
Nop();
RCFGCALbits.RTCPTR0 = 1;
RCFGCALbits.RTCPTR1 = 1;
// Set it to the correct time
// These values won't be accurate
RTCVAL = 0x0011;
RTCVAL = 0x0815;
RTCVAL = 0x0108;
RTCVAL = 0x2137;
RCFGCAL = 0x8000;
while (!MDD_MediaDetect());
// Initialize the library
while (!FSInit());
#ifdef ALLOW_WRITES
// Create a file
pointer = FSfopen ("FILE1.TXT", "w");
if (pointer == NULL)
while(1);
// Write 21 1-byte objects from sendBuffer into the file
if (FSfwrite (sendBuffer, 1, 21, pointer) != 21)
while(1);
// FSftell returns the file's current position
if (FSftell (pointer) != 21)
while(1);
// FSfseek sets the position one byte before the end
// It can also set the position of a file forward from the
// beginning or forward from the current position
if (FSfseek(pointer, 1, SEEK_END))
while(1);
// Write a 2 at the end of the string
if (FSfwrite (send2, 1, 1, pointer) != 1)
while(1);
// Close the file
if (FSfclose (pointer))
while(1);
// Create a second file
pointer = FSfopen ("Microchip File 1.TXT", "w");
if (pointer == NULL)
while(1);
// Write the string to it again
if (FSfwrite ((void *)sendBuffer, 1, 21, pointer) != 21)
while(1);
// Close the file
if (FSfclose (pointer))
while(1);
#endif
// Open file 1 in read mode
pointer = FSfopen ("FILE1.TXT", "r");
if (pointer == NULL)
while(1);
if (FSrename ("Microchip File 2.TXT", pointer))
while(1);
// Read one four-byte object
if (FSfread (receiveBuffer, 4, 1, pointer) != 1)
while(1);
// Check if this is the end of the file- it shouldn't be
if (FSfeof (pointer))
while(1);
// Close the file
if (FSfclose (pointer))
while(1);
// Make sure we read correctly
if ((receiveBuffer[0] != 'T') ||
(receiveBuffer[1] != 'h') ||
(receiveBuffer[2] != 'i') ||
(receiveBuffer[3] != 's'))
{
while(1);
}
#ifdef ALLOW_DIRS
// Create a small directory tree
// Beginning the path string with a '.' will create the tree in
// the current directory. Beginning with a '..' would create the
// tree in the previous directory. Beginning with just a '\' would
// create the tree in the root directory. Beginning with a dir name
// would also create the tree in the current directory
if (FSmkdir (".\\Mchp Directory 1\\Dir2\\Directory 3"))
while(1);
// Change to 'Directory 3' in our new tree
if (FSchdir ("Mchp Directory 1\\Dir2\\Directory 3"))
while(1);
// Create another tree in 'Directory 3'
if (FSmkdir ("Directory 4\\Directory 5\\Directory 6"))
while(1);
// Create a third file in directory THREE
pointer = FSfopen ("CWD.TXT", "w");
if (pointer == NULL)
while(1);
#if defined(SUPPORT_LFN)
// Get the name of the current working directory
/* it should be "\Mchp Directory 1\Dir2\Directory 3" */
pointer2 = wFSgetcwd ((unsigned short int *)path1, count);
#endif
if (pointer2 != path1)
while(1);
// Simple string length calculation
i = 0;
while(*((unsigned short int *)path1 + i) != 0x00)
{
size++;
size++;
i++;
}
// Write the name to CWD.TXT
if (FSfwrite (path1, size, 1, pointer) != 1)
while(1);
// Close the file
if (FSfclose (pointer))
while(1);
// Create some more directories
if (FSmkdir ("Directory 4\\Directory 5\\Directory 7\\..\\Directory 8\\..\\..\\DIRNINE\\Directory 10\\..\\Directory 11\\..\\Directory 12"))
while(1);
/*******************************************************************
Now our tree looks like this
\ -> Mchp Directory 1 -> Dir2 -> Directory 3 -> Directory 4 -> Directory 5 -> Directory 6
-> Directory 7
-> Directory 8
DIRNINE -> Directory 10
-> Directory 11
-> Directory 12
********************************************************************/
// This will delete only Directory 8
// If we tried to delete Directory 5 with this call, the FSrmdir
// function would return -1, since Directory 5 is non-empty
if (FSrmdir ("\\Mchp Directory 1\\Dir2\\Directory 3\\Directory 4\\Directory 5\\Directory 8", FALSE))
while(1);
// This will delete DIRNINE and all three of its sub-directories
if (FSrmdir ("Directory 4\\DIRNINE", TRUE))
while(1);
// Change directory to the root dir
if (FSchdir ("\\"))
while(1);
#endif
#ifdef ALLOW_FILESEARCH
// Set attributes
attributes = ATTR_ARCHIVE | ATTR_READ_ONLY | ATTR_HIDDEN;
// Functions "FindFirst" & "FindNext" can be used to find files
// and directories with required attributes in the current working directory.
// Find the first TXT file with any (or none) of those attributes that
// has a name beginning with the letters "Mic"
// These functions are more useful for finding out which files are
// in your current working directory
if (FindFirst ("Mic*.TXT", attributes, &rec))
while(1);
// Find file to get "Microchip File 2.TXT"
if (FindNext (&rec))
while(1);
#if defined(SUPPORT_LFN)
// Delete file 2
// If the file name is long
if(rec.utf16LFNfoundLength)
{
// NOTE : "wFSremove" function deletes specific file not directory.
// To delete directories use "wFSrmdir" function
if (wFSremove (rec.utf16LFNfound))
while(1);
}
else
#endif
{
// NOTE : "FSremove" function deletes specific file not directory.
// To delete directories use "FSrmdir" function
if (FSremove (rec.filename))
while(1);
}
#endif
/*********************************************************************
The final contents of our card should look like this:
\ -> Microchip File 1.TXT
-> Mchp Directory 1 -> Dir2 -> Directory 3 -> CWD.TXT
-> Directory 4 -> Directory 5 -> Directory 6
-> Directory 7
*********************************************************************/
while(1);
}
int main (void)
{
FSFILE * pointer;
#if defined(SUPPORT_LFN)
char count = 80;
#endif
char * pointer2;
SearchRec rec;
unsigned char attributes;
unsigned char size = 0, i;
// Turn on the secondary oscillator
__asm__ ("MOV #OSCCON,w1");
__asm__ ("MOV.b #0x02, w0");
__asm__ ("MOV #0x46, w2");
__asm__ ("MOV #0x57, w3");
__asm__ ("MOV.b w2, [w1]");
__asm__ ("MOV.b w3, [w1]");
__asm__ ("MOV.b w0, [w1]");
// Activate the RTCC module
__asm__ ("mov #NVMKEY,W0");
__asm__ ("mov #0x55,W1");
__asm__ ("mov #0xAA,W2");
__asm__ ("mov W1,[W0]");
__asm__ ("nop");
__asm__ ("mov W2,[W0]");
__asm__ ("bset RCFGCAL,#13");
__asm__ ("nop");
__asm__ ("nop");
RCFGCALbits.RTCPTR0 = 1;
RCFGCALbits.RTCPTR1 = 1;
// Set it to the correct time
// These values won't be accurate
RTCVAL = 0x0007;
RTCVAL = 0x0717;
RTCVAL = 0x0208;
RTCVAL = 0x2137;
RCFGCAL = 0x8000;
#if defined(__PIC24FJ256DA210__)
// Make Analog Pins Digital
ANSB = 0x0000 ;
ANSA = 0x0000;
ANSC = 0x0000;
ANSD = 0x0000;
// Enable PLL
CLKDIVbits.PLLEN = 1;
// Configure SPI1 PPS pins (ENC28J60/ENCX24J600/MRF24WB0M or other PICtail Plus cards)
__builtin_write_OSCCONL(OSCCON & 0xbf); // unlock PPS
RPOR1bits.RP2R = 8; // assign RP2 for SCK1
RPOR0bits.RP1R = 7; // assign RP1 for SDO1
RPINR20bits.SDI1R = 0; // assign RP0 for SDI1
__builtin_write_OSCCONL(OSCCON | 0x40); // lock PPS
#elif defined(__PIC24FJ256GB110__)
AD1PCFGL = 0xFFFF;
//Initialize the SPI
RPINR20bits.SDI1R = 23;
RPOR7bits.RP15R = 7;
RPOR0bits.RP0R = 8;
//enable a pull-up for the card detect, just in case the SD-Card isn't attached
// then lets have a pull-up to make sure we don't think it is there.
CNPU5bits.CN68PUE = 1;
#endif
while (!MDD_MediaDetect());
// Initialize the library
while (!FSInit());
#ifdef ALLOW_WRITES
// Create a file
pointer = FSfopen ("FILE1.TXT", "w");
if (pointer == NULL)
while(1);
// Write 21 1-byte objects from sendBuffer into the file
if (FSfwrite (sendBuffer, 1, 21, pointer) != 21)
while(1);
// FSftell returns the file's current position
if (FSftell (pointer) != 21)
while(1);
// FSfseek sets the position one byte before the end
// It can also set the position of a file forward from the
// beginning or forward from the current position
if (FSfseek(pointer, 1, SEEK_END))
while(1);
// Write a 2 at the end of the string
if (FSfwrite (send2, 1, 1, pointer) != 1)
while(1);
// Close the file
if (FSfclose (pointer))
while(1);
// Create a second file
pointer = FSfopen ("Microchip File 1.TXT", "w");
if (pointer == NULL)
while(1);
// Write the string to it again
if (FSfwrite ((void *)sendBuffer, 1, 21, pointer) != 21)
while(1);
// Close the file
if (FSfclose (pointer))
while(1);
#endif
// Open file 1 in read mode
pointer = FSfopen ("FILE1.TXT", "r");
if (pointer == NULL)
while(1);
if (FSrename ("Microchip File 2.TXT", pointer))
while(1);
// Read one four-byte object
if (FSfread (receiveBuffer, 4, 1, pointer) != 1)
while(1);
// Check if this is the end of the file- it shouldn't be
if (FSfeof (pointer))
while(1);
// Close the file
if (FSfclose (pointer))
while(1);
// Make sure we read correctly
if ((receiveBuffer[0] != 'T') ||
(receiveBuffer[1] != 'h') ||
(receiveBuffer[2] != 'i') ||
(receiveBuffer[3] != 's'))
{
while(1);
}
#ifdef ALLOW_DIRS
// Create a small directory tree
// Beginning the path string with a '.' will create the tree in
// the current directory. Beginning with a '..' would create the
// tree in the previous directory. Beginning with just a '\' would
// create the tree in the root directory. Beginning with a dir name
// would also create the tree in the current directory
if (FSmkdir (".\\Mchp Directory 1\\Dir2\\Directory 3"))
while(1);
// Change to 'Directory 3' in our new tree
if (FSchdir ("Mchp Directory 1\\Dir2\\Directory 3"))
while(1);
// Create another tree in 'Directory 3'
if (FSmkdir ("Directory 4\\Directory 5\\Directory 6"))
while(1);
// Create a third file in directory THREE
pointer = FSfopen ("CWD.TXT", "w");
if (pointer == NULL)
while(1);
#if defined(SUPPORT_LFN)
// Get the name of the current working directory
/* it should be "\Microchip Directory 1\Dir2\Directory 3" */
pointer2 = wFSgetcwd ((unsigned short int *)path1, count);
#endif
if (pointer2 != path1)
while(1);
// Simple string length calculation
i = 0;
while(*((unsigned short int *)path1 + i) != 0x00)
{
size++;
size++;
i++;
}
// Write the name to CWD.TXT
if (FSfwrite (path1, size, 1, pointer) != 1)
while(1);
// Close the file
if (FSfclose (pointer))
while(1);
// Create some more directories
if (FSmkdir ("Directory 4\\Directory 5\\Directory 7\\..\\Directory 8\\..\\..\\DIRNINE\\Directory 10\\..\\Directory 11\\..\\Directory 12"))
while(1);
/*******************************************************************
Now our tree looks like this
\ -> Mchp Directory 1 -> Dir2 -> Directory 3 -> Directory 4 -> Directory 5 -> Directory 6
-> Directory 7
-> Directory 8
DIRNINE -> Directory 10
-> Directory 11
-> Directory 12
********************************************************************/
// This will delete only Directory 8
// If we tried to delete Directory 5 with this call, the FSrmdir
// function would return -1, since Directory 5 is non-empty
if (FSrmdir ("\\Mchp Directory 1\\Dir2\\Directory 3\\Directory 4\\Directory 5\\Directory 8", FALSE))
while(1);
// This will delete DIRNINE and all three of its sub-directories
if (FSrmdir ("Directory 4\\DIRNINE", TRUE))
while(1);
// Change directory to the root dir
if (FSchdir ("\\"))
while(1);
#endif
#ifdef ALLOW_FILESEARCH
// Set attributes
attributes = ATTR_ARCHIVE | ATTR_READ_ONLY | ATTR_HIDDEN;
// Functions "FindFirst" & "FindNext" can be used to find files
// and directories with required attributes in the current working directory.
// Find the first TXT file with any (or none) of those attributes that
// has a name beginning with the letters "Mic"
// These functions are more useful for finding out which files are
// in your current working directory
if (FindFirst ("Mic*.TXT", attributes, &rec))
while(1);
// Find file to get "Microchip File 2.TXT"
if (FindNext (&rec))
while(1);
#if defined(SUPPORT_LFN)
// Delete file 2
// If the file name is long
if(rec.utf16LFNfoundLength)
{
// NOTE : "wFSremove" function deletes specific file not directory.
// To delete directories use "wFSrmdir" function
if (wFSremove (rec.utf16LFNfound))
while(1);
}
else
#endif
{
// NOTE : "FSremove" function deletes specific file not directory.
// To delete directories use "FSrmdir" function
if (FSremove (rec.filename))
while(1);
}
#endif
/*********************************************************************
The final contents of our card should look like this:
\ -> Microchip File 1.TXT
-> Mchp Directory 1 -> Dir2 -> Directory 3 -> CWD.TXT
-> Directory 4 -> Directory 5 -> Directory 6
-> Directory 7
*********************************************************************/
while(1);
}
