HI
I proceed to some modification to write in SDcard , i will share my code hoping someone can help me.
I connect the msp430g2553, with a sdcard and a LCD, he can mount the card and recognize the disk, but do not write in the file.
5282.spi.c
7752.pff.h#include <msp430.h>
#include <stdint.h>
#include "spi.h"
#ifndef __MSP430_HAS_USCI__
#error "Error! This MCU doesn't have a USCI peripheral"
#endif
#define SPI_MODE_0 UCCKPH | UCMSB| UCMST | UCSYNC /* CPOL=0 CPHA=0 */
#define SPI_MODE_3 UCCKPL | UCMSB| UCMST | UCSYNC /* CPOL=1 CPHA=1 */
/**
* spi_initialize() - Initialize and enable the SPI module
*
* P2.0 - CS (active low)
* P1.5 - SCLK
* P1.6 - SIMO
* P1.7 - MOSI
*
*/
void spi_initialize(void)
{
UCB0CTL1 = UCSSEL_2 | UCSWRST; // source USCI clock from SMCLK, put USCI in reset mode
UCB0CTL0 |= SPI_MODE_0; // SPI MODE 0 - CPOL=0 CPHA=0
// note: UCCKPH is inverted from CPHA
P1SEL |= BIT5 | BIT6 | BIT7; // configure P1.5, P1.6, P1.7 for USCI
P1SEL2 |= BIT5 | BIT6 | BIT7;
UCB0BR0 = LOBYTE(SPI_400kHz); // set initial speed 16MHz/400000 = 400kHz
UCB0BR1 = HIBYTE(SPI_400kHz);
P2OUT |= BIT0; // CS on P2.0. start out disabled
P2DIR |= BIT0; // CS configured as output
UCB0CTL1 &= ~UCSWRST; // release for operation
}
/**
* spi_send() - send a byte and recv response
*/
uint8_t spi_send(const uint8_t c)
{
while (!(UC0IFG & UCB0TXIFG))
; // wait for previous tx to complete
UCB0TXBUF = c; // setting TXBUF clears the TXIFG flag
while (!(UC0IFG & UCB0RXIFG))
; // wait for an rx character?
return UCB0RXBUF; // reading clears RXIFG flag
}
/**
* spi_receive() - send dummy btye then recv response
*/
uint8_t spi_receive(void) {
while (!(UC0IFG & UCB0TXIFG))
; // wait for any previous xmits to complete
UCB0TXBUF = 0xFF; // Send dummy packet to get data back.
while (!(UC0IFG & UCB0RXIFG))
; // wait to recv a character?
return UCB0RXBUF; // reading clears RXIFG flag
}
/**
* spi_setspeed() - set new clock divider for USCI
*
* USCI speed is based on the SMCLK divided by BR0 and BR1
* initially we start slow (400kHz) to conform to SDCard
* specifications then we speed up once initialized (16Mhz)
*
*/
void spi_set_divisor(const uint16_t clkdiv)
{
UCB0CTL1 |= UCSWRST; // go into reset state
UCB0BR0 = LOBYTE(clkdiv);
UCB0BR1 = HIBYTE(clkdiv);
UCB0CTL1 &= ~UCSWRST; // release for operation
}
1212.pff.c
7077.main.h/*----------------------------------------------------------------------------/
/ Petit FatFs - FAT file system module R0.02a (C)ChaN, 2010
/-----------------------------------------------------------------------------/
/ Petit FatFs module is an open source software to implement FAT file system to
/ small embedded systems. This is a free software and is opened for education,
/ research and commercial developments under license policy of following trems.
/
/ Copyright (C) 2010, ChaN, all right reserved.
/
/ * The Petit FatFs module is a free software and there is NO WARRANTY.
/ * No restriction on use. You can use, modify and redistribute it for
/ personal, non-profit or commercial use UNDER YOUR RESPONSIBILITY.
/ * Redistributions of source code must retain the above copyright notice.
/
/-----------------------------------------------------------------------------/
/ Jun 15,'09 R0.01a First release. (Branched from FatFs R0.07b.)
/
/ Dec 14,'09 R0.02 Added multiple code page support.
/ Added write funciton.
/ Changed stream read mode interface.
/ Dec 07,'10 R0.02a Added some configuration options.
/ Fixed fails to open objects with DBCS character.
/----------------------------------------------------------------------------*/
#include "pff.h" /* Petit FatFs configurations and declarations */
#include "diskio.h" /* Declarations of low level disk I/O functions */
/*--------------------------------------------------------------------------
Module Private Definitions
---------------------------------------------------------------------------*/
#if _FS_FAT32
#define LD_CLUST(dir) (((DWORD)LD_WORD(dir+DIR_FstClusHI)<<16) | LD_WORD(dir+DIR_FstClusLO))
#else
#define LD_CLUST(dir) LD_WORD(dir+DIR_FstClusLO)
#endif
/*--------------------------------------------------------*/
/* DBCS code ranges and SBCS extend char conversion table */
#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
#define _DF1S 0x81 /* DBC 1st byte range 1 start */
#define _DF1E 0x9F /* DBC 1st byte range 1 end */
#define _DF2S 0xE0 /* DBC 1st byte range 2 start */
#define _DF2E 0xFC /* DBC 1st byte range 2 end */
#define _DS1S 0x40 /* DBC 2nd byte range 1 start */
#define _DS1E 0x7E /* DBC 2nd byte range 1 end */
#define _DS2S 0x80 /* DBC 2nd byte range 2 start */
#define _DS2E 0xFC /* DBC 2nd byte range 2 end */
#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
#define _DF1S 0x81
#define _DF1E 0xFE
#define _DS1S 0x40
#define _DS1E 0x7E
#define _DS2S 0x80
#define _DS2E 0xFE
#elif _CODE_PAGE == 949 /* Korean */
#define _DF1S 0x81
#define _DF1E 0xFE
#define _DS1S 0x41
#define _DS1E 0x5A
#define _DS2S 0x61
#define _DS2E 0x7A
#define _DS3S 0x81
#define _DS3E 0xFE
#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
#define _DF1S 0x81
#define _DF1E 0xFE
#define _DS1S 0x40
#define _DS1E 0x7E
#define _DS2S 0xA1
#define _DS2E 0xFE
#elif _CODE_PAGE == 437 /* U.S. (OEM) */
#define _DF1S 0
#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F,0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 720 /* Arabic (OEM) */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x45,0x41,0x84,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x49,0x49,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 737 /* Greek (OEM) */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \
0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xE7,0xE8,0xF1,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 775 /* Baltic (OEM) */
#define _DF1S 0
#define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */
#define _DF1S 0
#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 852 /* Latin 2 (OEM) */
#define _DF1S 0
#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F,0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0x9F, \
0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}
#elif _CODE_PAGE == 855 /* Cyrillic (OEM) */
#define _DF1S 0
#define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F,0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \
0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \
0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 857 /* Turkish (OEM) */
#define _DF1S 0
#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x98,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0x59,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */
#define _DF1S 0
#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 862 /* Hebrew (OEM) */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 866 /* Russian (OEM) */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0x90,0x91,0x92,0x93,0x9d,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \
0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xA3,0xB4,0xB5,0xB6,0xB7,0xB8,0xA5,0xAA,0xBB,0xBC,0xBD,0xBC,0xAF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF}
#elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x82,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x80,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \
0xA0,0xA2,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB2,0xA5,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xA3,0xBD,0xBD,0xAF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF}
#elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0xAd,0x9B,0x8C,0x9D,0xAE,0x9F, \
0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F}
#elif _CODE_PAGE == 1253 /* Greek (Windows) */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xA2,0xB8,0xB9,0xBA, \
0xE0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xFB,0xBC,0xFD,0xBF,0xFF}
#elif _CODE_PAGE == 1254 /* Turkish (Windows) */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x9D,0x9E,0x9F, \
0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F}
#elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 1256 /* Arabic (Windows) */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x8C,0x9D,0x9E,0x9F, \
0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0x41,0xE1,0x41,0xE3,0xE4,0xE5,0xE6,0x43,0x45,0x45,0x45,0x45,0xEC,0xED,0x49,0x49,0xF0,0xF1,0xF2,0xF3,0x4F,0xF5,0xF6,0xF7,0xF8,0x55,0xFA,0x55,0x55,0xFD,0xFE,0xFF}
#elif _CODE_PAGE == 1257 /* Baltic (Windows) */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xBC,0xBD,0xBE,0xAF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF}
#elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
#define _DF1S 0
#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0xAC,0x9D,0x9E,0x9F, \
0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xEC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xFE,0x9F}
#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
#define _DF1S 0
#else
#error Unknown code page
#endif
/* Character code support macros */
#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
#define IsLower(c) (((c)>='a')&&((c)<='z'))
#if _DF1S /* DBCS configuration */
#ifdef _DF2S /* Two 1st byte areas */
#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) || ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
#else /* One 1st byte area */
#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
#endif
#ifdef _DS3S /* Three 2nd byte areas */
#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) || ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
#else /* Two 2nd byte areas */
#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
#endif
#else /* SBCS configuration */
#define IsDBCS1(c) 0
#define IsDBCS2(c) 0
#endif /* _DF1S */
/* FatFs refers the members in the FAT structures with byte offset instead
/ of structure member because there are incompatibility of the packing option
/ between various compilers. */
#define BS_jmpBoot 0
#define BS_OEMName 3
#define BPB_BytsPerSec 11
#define BPB_SecPerClus 13
#define BPB_RsvdSecCnt 14
#define BPB_NumFATs 16
#define BPB_RootEntCnt 17
#define BPB_TotSec16 19
#define BPB_Media 21
#define BPB_FATSz16 22
#define BPB_SecPerTrk 24
#define BPB_NumHeads 26
#define BPB_HiddSec 28
#define BPB_TotSec32 32
#define BS_55AA 510
#define BS_DrvNum 36
#define BS_BootSig 38
#define BS_VolID 39
#define BS_VolLab 43
#define BS_FilSysType 54
#define BPB_FATSz32 36
#define BPB_ExtFlags 40
#define BPB_FSVer 42
#define BPB_RootClus 44
#define BPB_FSInfo 48
#define BPB_BkBootSec 50
#define BS_DrvNum32 64
#define BS_BootSig32 66
#define BS_VolID32 67
#define BS_VolLab32 71
#define BS_FilSysType32 82
#define MBR_Table 446
#define DIR_Name 0
#define DIR_Attr 11
#define DIR_NTres 12
#define DIR_CrtTime 14
#define DIR_CrtDate 16
#define DIR_FstClusHI 20
#define DIR_WrtTime 22
#define DIR_WrtDate 24
#define DIR_FstClusLO 26
#define DIR_FileSize 28
/*--------------------------------------------------------------------------
Private Functions
---------------------------------------------------------------------------*/
static
FATFS *FatFs; /* Pointer to the file system object (logical drive) */
/* Fill memory */
static
void mem_set (void* dst, int val, int cnt) {
char *d = (char*)dst;
while (cnt--) *d++ = (char)val;
}
/* Compare memory to memory */
static
int mem_cmp (const void* dst, const void* src, int cnt) {
const char *d = (const char *)dst, *s = (const char *)src;
int r = 0;
while (cnt-- && (r = *d++ - *s++) == 0) ;
return r;
}
/*-----------------------------------------------------------------------*/
/* FAT access - Read value of a FAT entry */
/*-----------------------------------------------------------------------*/
static
CLUST get_fat ( /* 1:IO error, Else:Cluster status */
CLUST clst /* Cluster# to get the link information */
)
{
#if _FS_FAT12
WORD wc, bc, ofs;
#endif
BYTE buf[4];
FATFS *fs = FatFs;
if (clst < 2 || clst >= fs->n_fatent) /* Range check */
return 1;
switch (fs->fs_type) {
#if _FS_FAT12
case FS_FAT12 :
bc = (WORD)clst; bc += bc / 2;
ofs = bc % 512; bc /= 512;
if (ofs != 511) {
if (disk_readp(buf, fs->fatbase + bc, ofs, 2)) break;
} else {
if (disk_readp(buf, fs->fatbase + bc, 511, 1)) break;
if (disk_readp(buf+1, fs->fatbase + bc + 1, 0, 1)) break;
}
wc = LD_WORD(buf);
return (clst & 1) ? (wc >> 4) : (wc & 0xFFF);
#endif
case FS_FAT16 :
if (disk_readp(buf, fs->fatbase + clst / 256, (WORD)(((WORD)clst % 256) * 2), 2)) break;
return LD_WORD(buf);
#if _FS_FAT32
case FS_FAT32 :
if (disk_readp(buf, fs->fatbase + clst / 128, (WORD)(((WORD)clst % 128) * 4), 4)) break;
return LD_DWORD(buf) & 0x0FFFFFFF;
#endif
}
return 1; /* An error occured at the disk I/O layer */
}
/*-----------------------------------------------------------------------*/
/* Get sector# from cluster# */
/*-----------------------------------------------------------------------*/
static
DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
CLUST clst /* Cluster# to be converted */
)
{
FATFS *fs = FatFs;
clst -= 2;
if (clst >= (fs->n_fatent - 2)) return 0; /* Invalid cluster# */
return (DWORD)clst * fs->csize + fs->database;
}
/*-----------------------------------------------------------------------*/
/* Directory handling - Rewind directory index */
/*-----------------------------------------------------------------------*/
static
FRESULT dir_rewind (
DIR *dj /* Pointer to directory object */
)
{
CLUST clst;
FATFS *fs = FatFs;
dj->index = 0;
clst = dj->sclust;
if (clst == 1 || clst >= fs->n_fatent) /* Check start cluster range */
return FR_DISK_ERR;
if (_FS_FAT32 && !clst && fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */
clst = (CLUST)fs->dirbase;
dj->clust = clst; /* Current cluster */
dj->sect = clst ? clust2sect(clst) : fs->dirbase; /* Current sector */
return FR_OK; /* Seek succeeded */
}
/*-----------------------------------------------------------------------*/
/* Directory handling - Move directory index next */
/*-----------------------------------------------------------------------*/
static
FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table */
DIR *dj /* Pointer to directory object */
)
{
CLUST clst;
WORD i;
FATFS *fs = FatFs;
i = dj->index + 1;
if (!i || !dj->sect) /* Report EOT when index has reached 65535 */
return FR_NO_FILE;
if (!(i % 16)) { /* Sector changed? */
dj->sect++; /* Next sector */
if (dj->clust == 0) { /* Static table */
if (i >= fs->n_rootdir) /* Report EOT when end of table */
return FR_NO_FILE;
}
else { /* Dynamic table */
if (((i / 16) & (fs->csize-1)) == 0) { /* Cluster changed? */
clst = get_fat(dj->clust); /* Get next cluster */
if (clst <= 1) return FR_DISK_ERR;
if (clst >= fs->n_fatent) /* When it reached end of dynamic table */
return FR_NO_FILE; /* Report EOT */
dj->clust = clst; /* Initialize data for new cluster */
dj->sect = clust2sect(clst);
}
}
}
dj->index = i;
return FR_OK;
}
/*-----------------------------------------------------------------------*/
/* Directory handling - Find an object in the directory */
/*-----------------------------------------------------------------------*/
static
FRESULT dir_find (
DIR *dj, /* Pointer to the directory object linked to the file name */
BYTE *dir /* 32-byte working buffer */
)
{
FRESULT res;
BYTE c;
res = dir_rewind(dj); /* Rewind directory object */
if (res != FR_OK) return res;
do {
res = disk_readp(dir, dj->sect, (WORD)((dj->index % 16) * 32), 32) /* Read an entry */
? FR_DISK_ERR : FR_OK;
if (res != FR_OK) break;
c = dir[DIR_Name]; /* First character */
if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */
break;
res = dir_next(dj); /* Next entry */
} while (res == FR_OK);
return res;
}
/*-----------------------------------------------------------------------*/
/* Read an object from the directory */
/*-----------------------------------------------------------------------*/
#if _USE_DIR
static
FRESULT dir_read (
DIR *dj, /* Pointer to the directory object to store read object name */
BYTE *dir /* 32-byte working buffer */
)
{
FRESULT res;
BYTE a, c;
res = FR_NO_FILE;
while (dj->sect) {
res = disk_readp(dir, dj->sect, (WORD)((dj->index % 16) * 32), 32) /* Read an entry */
? FR_DISK_ERR : FR_OK;
if (res != FR_OK) break;
c = dir[DIR_Name];
if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
a = dir[DIR_Attr] & AM_MASK;
if (c != 0xE5 && c != '.' && !(a & AM_VOL)) /* Is it a valid entry? */
break;
res = dir_next(dj); /* Next entry */
if (res != FR_OK) break;
}
if (res != FR_OK) dj->sect = 0;
return res;
}
#endif
/*-----------------------------------------------------------------------*/
/* Pick a segment and create the object name in directory form */
/*-----------------------------------------------------------------------*/
#ifdef _EXCVT
static const BYTE cvt[] = _EXCVT;
#endif
static
FRESULT create_name (
DIR *dj, /* Pointer to the directory object */
const char **path /* Pointer to pointer to the segment in the path string */
)
{
BYTE c, d, ni, si, i, *sfn;
const char *p;
/* Create file name in directory form */
sfn = dj->fn;
mem_set(sfn, ' ', 11);
si = i = 0; ni = 8;
p = *path;
for (;;) {
c = p[si++];
if (c <= ' ' || c == '/') break; /* Break on end of segment */
if (c == '.' || i >= ni) {
if (ni != 8 || c != '.') break;
i = 8; ni = 11;
continue;
}
#ifdef _EXCVT
if (c >= 0x80) /* To upper extended char (SBCS) */
c = cvt[c - 0x80];
#endif
if (IsDBCS1(c) && i < ni - 1) { /* DBC 1st byte? */
d = p[si++]; /* Get 2nd byte */
sfn[i++] = c;
sfn[i++] = d;
} else { /* Single byte code */
if (IsLower(c)) c -= 0x20; /* toupper */
sfn[i++] = c;
}
}
*path = &p[si]; /* Rerurn pointer to the next segment */
sfn[11] = (c <= ' ') ? 1 : 0; /* Set last segment flag if end of path */
return FR_OK;
}
/*-----------------------------------------------------------------------*/
/* Get file information from directory entry */
/*-----------------------------------------------------------------------*/
#if _USE_DIR
static
void get_fileinfo ( /* No return code */
DIR *dj, /* Pointer to the directory object */
BYTE *dir, /* 32-byte working buffer */
FILINFO *fno /* Pointer to store the file information */
)
{
BYTE i, c;
char *p;
p = fno->fname;
if (dj->sect) {
for (i = 0; i < 8; i++) { /* Copy file name body */
c = dir[i];
if (c == ' ') break;
if (c == 0x05) c = 0xE5;
*p++ = c;
}
if (dir[8] != ' ') { /* Copy file name extension */
*p++ = '.';
for (i = 8; i < 11; i++) {
c = dir[i];
if (c == ' ') break;
*p++ = c;
}
}
fno->fattrib = dir[DIR_Attr]; /* Attribute */
fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */
fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */
fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */
}
*p = 0;
}
#endif /* _USE_DIR */
/*-----------------------------------------------------------------------*/
/* Follow a file path */
/*-----------------------------------------------------------------------*/
static
FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
DIR *dj, /* Directory object to return last directory and found object */
BYTE *dir, /* 32-byte working buffer */
const char *path /* Full-path string to find a file or directory */
)
{
FRESULT res;
while (*path == ' ') path++; /* Skip leading spaces */
if (*path == '/') path++; /* Strip heading separator */
dj->sclust = 0; /* Set start directory (always root dir) */
if ((BYTE)*path <= ' ') { /* Null path means the root directory */
res = dir_rewind(dj);
dir[0] = 0;
} else { /* Follow path */
for (;;) {
res = create_name(dj, &path); /* Get a segment */
if (res != FR_OK) break;
res = dir_find(dj, dir); /* Find it */
if (res != FR_OK) { /* Could not find the object */
if (res == FR_NO_FILE && !*(dj->fn+11))
res = FR_NO_PATH;
break;
}
if (*(dj->fn+11)) break; /* Last segment match. Function completed. */
if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */
res = FR_NO_PATH; break;
}
dj->sclust = LD_CLUST(dir);
}
}
return res;
}
/*-----------------------------------------------------------------------*/
/* Check a sector if it is an FAT boot record */
/*-----------------------------------------------------------------------*/
static
BYTE check_fs ( /* 0:The FAT boot record, 1:Valid boot record but not an FAT, 2:Not a boot record, 3:Error */
BYTE *buf, /* Working buffer */
DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
)
{
if (disk_readp(buf, sect, 510, 2)) /* Read the boot sector */
return 3;
if (LD_WORD(buf) != 0xAA55) /* Check record signature */
return 2;
if (!disk_readp(buf, sect, BS_FilSysType, 2) && LD_WORD(buf) == 0x4146) /* Check FAT12/16 */
return 0;
if (_FS_FAT32 && !disk_readp(buf, sect, BS_FilSysType32, 2) && LD_WORD(buf) == 0x4146) /* Check FAT32 */
return 0;
return 1;
}
/*--------------------------------------------------------------------------
Public Functions
--------------------------------------------------------------------------*/
/*-----------------------------------------------------------------------*/
/* Mount/Unmount a Locical Drive */
/*-----------------------------------------------------------------------*/
FRESULT pf_mount (
FATFS *fs /* Pointer to new file system object (NULL: Unmount) */
)
{
BYTE fmt, buf[36];
DWORD bsect, fsize, tsect, mclst;
BYTE resTest;
FatFs = 0;
if (!fs) return FR_OK; /* Unregister fs object */
resTest = disk_initialize() ;
if (resTest& STA_NOINIT) /* Check if the drive is ready or not */
return FR_NOT_READY;
/* Search FAT partition on the drive */
bsect = 0;
fmt = check_fs(buf, bsect); /* Check sector 0 as an SFD format */
if (fmt == 1) { /* Not an FAT boot record, it may be FDISK format */
/* Check a partition listed in top of the partition table */
if (disk_readp(buf, bsect, MBR_Table, 16)) { /* 1st partition entry */
fmt = 3;
} else {
if (buf[4]) { /* Is the partition existing? */
bsect = LD_DWORD(&buf[8]); /* Partition offset in LBA */
fmt = check_fs(buf, bsect); /* Check the partition */
}
}
}
if (fmt == 3) return FR_DISK_ERR;
if (fmt) return FR_NO_FILESYSTEM; /* No valid FAT patition is found */
/* Initialize the file system object */
if (disk_readp(buf, bsect, 13, sizeof(buf))) return FR_DISK_ERR;
fsize = LD_WORD(buf+BPB_FATSz16-13); /* Number of sectors per FAT */
if (!fsize) fsize = LD_DWORD(buf+BPB_FATSz32-13);
fsize *= buf[BPB_NumFATs-13]; /* Number of sectors in FAT area */
fs->fatbase = bsect + LD_WORD(buf+BPB_RsvdSecCnt-13); /* FAT start sector (lba) */
fs->csize = buf[BPB_SecPerClus-13]; /* Number of sectors per cluster */
fs->n_rootdir = LD_WORD(buf+BPB_RootEntCnt-13); /* Nmuber of root directory entries */
tsect = LD_WORD(buf+BPB_TotSec16-13); /* Number of sectors on the file system */
if (!tsect) tsect = LD_DWORD(buf+BPB_TotSec32-13);
mclst = (tsect /* Last cluster# + 1 */
- LD_WORD(buf+BPB_RsvdSecCnt-13) - fsize - fs->n_rootdir / 16
) / fs->csize + 2;
fs->n_fatent = (CLUST)mclst;
fmt = FS_FAT16; /* Determine the FAT sub type */
if (mclst < 0xFF7) /* Number of clusters < 0xFF5 */
#if _FS_FAT12
fmt = FS_FAT12;
#else
return FR_NO_FILESYSTEM;
#endif
if (mclst >= 0xFFF7) /* Number of clusters >= 0xFFF5 */
#if _FS_FAT32
fmt = FS_FAT32;
#else
return FR_NO_FILESYSTEM;
#endif
fs->fs_type = fmt; /* FAT sub-type */
if (_FS_FAT32 && fmt == FS_FAT32)
fs->dirbase = LD_DWORD(buf+(BPB_RootClus-13)); /* Root directory start cluster */
else
fs->dirbase = fs->fatbase + fsize; /* Root directory start sector (lba) */
fs->database = fs->fatbase + fsize + fs->n_rootdir / 16; /* Data start sector (lba) */
fs->flag = 0;
FatFs = fs;
return FR_OK;
}
/*-----------------------------------------------------------------------*/
/* Open or Create a File */
/*-----------------------------------------------------------------------*/
FRESULT pf_open (
const char *path /* Pointer to the file name */
)
{
FRESULT res;
DIR dj;
BYTE sp[12], dir[32];
FATFS *fs = FatFs;
if (!fs) /* Check file system */
return FR_NOT_ENABLED;
fs->flag = 0;
dj.fn = sp;
res = follow_path(&dj, dir, path); /* Follow the file path */
if (res != FR_OK) return res; /* Follow failed */
if (!dir[0] || (dir[DIR_Attr] & AM_DIR)) /* It is a directory */
return FR_NO_FILE;
fs->org_clust = LD_CLUST(dir); /* File start cluster */
fs->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */
fs->fptr = 0; /* File pointer */
fs->flag = FA_OPENED;
return FR_OK;
}
/*-----------------------------------------------------------------------*/
/* Read File */
/*-----------------------------------------------------------------------*/
#if _USE_READ
FRESULT pf_read (
void* buff, /* Pointer to the read buffer (NULL:Forward data to the stream)*/
WORD btr, /* Number of bytes to read */
WORD* br /* Pointer to number of bytes read */
)
{
DRESULT dr;
CLUST clst;
DWORD sect, remain;
WORD rcnt;
BYTE cs, *rbuff = buff;
FATFS *fs = FatFs;
*br = 0;
if (!fs) return FR_NOT_ENABLED; /* Check file system */
if (!(fs->flag & FA_OPENED)) /* Check if opened */
return FR_NOT_OPENED;
remain = fs->fsize - fs->fptr;
if (btr > remain) btr = (WORD)remain; /* Truncate btr by remaining bytes */
while (btr) { /* Repeat until all data transferred */
if ((fs->fptr % 512) == 0) { /* On the sector boundary? */
cs = (BYTE)(fs->fptr / 512 & (fs->csize - 1)); /* Sector offset in the cluster */
if (!cs) { /* On the cluster boundary? */
clst = (fs->fptr == 0) ? /* On the top of the file? */
fs->org_clust : get_fat(fs->curr_clust);
if (clst <= 1) goto fr_abort;
fs->curr_clust = clst; /* Update current cluster */
}
sect = clust2sect(fs->curr_clust); /* Get current sector */
if (!sect) goto fr_abort;
fs->dsect = sect + cs;
}
rcnt = (WORD)(512 - (fs->fptr % 512)); /* Get partial sector data from sector buffer */
if (rcnt > btr) rcnt = btr;
dr = disk_readp(!buff ? 0 : rbuff, fs->dsect, (WORD)(fs->fptr % 512), rcnt);
if (dr) goto fr_abort;
fs->fptr += rcnt; rbuff += rcnt; /* Update pointers and counters */
btr -= rcnt; *br += rcnt;
}
return FR_OK;
fr_abort:
fs->flag = 0;
return FR_DISK_ERR;
}
#endif
/*-----------------------------------------------------------------------*/
/* Write File */
/*-----------------------------------------------------------------------*/
#if _USE_WRITE
FRESULT pf_write (
const void* buff, /* Pointer to the data to be written */
WORD btw, /* Number of bytes to write (0:Finalize the current write operation) */
WORD* bw /* Pointer to number of bytes written */
)
{
CLUST clst;
DWORD sect, remain;
const BYTE *p = buff;
BYTE cs;
WORD wcnt;
FATFS *fs = FatFs;
*bw = 0;
if (!fs) return FR_NOT_ENABLED; /* Check file system */
if (!(fs->flag & FA_OPENED)) /* Check if opened */
return FR_NOT_OPENED;
if (!btw) { /* Finalize request */
if ((fs->flag & FA__WIP) && disk_writep(0, 0)) goto fw_abort;
fs->flag &= ~FA__WIP;
return FR_OK;
} else { /* Write data request */
if (!(fs->flag & FA__WIP)) /* Round-down fptr to the sector boundary */
fs->fptr &= 0xFFFFFE00;
}
remain = fs->fsize - fs->fptr;
if (btw > remain) btw = (WORD)remain; /* Truncate btw by remaining bytes */
while (btw) { /* Repeat until all data transferred */
if (((WORD)fs->fptr % 512) == 0) { /* On the sector boundary? */
cs = (BYTE)(fs->fptr / 512 & (fs->csize - 1)); /* Sector offset in the cluster */
if (!cs) { /* On the cluster boundary? */
clst = (fs->fptr == 0) ? /* On the top of the file? */
fs->org_clust : get_fat(fs->curr_clust);
if (clst <= 1) goto fw_abort;
fs->curr_clust = clst; /* Update current cluster */
}
sect = clust2sect(fs->curr_clust); /* Get current sector */
if (!sect) goto fw_abort;
fs->dsect = sect + cs;
if (disk_writep(0, fs->dsect)) goto fw_abort; /* Initiate a sector write operation */
fs->flag |= FA__WIP;
}
wcnt = 512 - ((WORD)fs->fptr % 512); /* Number of bytes to write to the sector */
if (wcnt > btw) wcnt = btw;
if (disk_writep(p, wcnt)) goto fw_abort; /* Send data to the sector */
fs->fptr += wcnt; p += wcnt; /* Update pointers and counters */
btw -= wcnt; *bw += wcnt;
if (((WORD)fs->fptr % 512) == 0) {
if (disk_writep(0, 0)) goto fw_abort; /* Finalize the currtent secter write operation */
fs->flag &= ~FA__WIP;
}
}
return FR_OK;
fw_abort:
fs->flag = 0;
return FR_DISK_ERR;
}
#endif
/*-----------------------------------------------------------------------*/
/* Seek File R/W Pointer */
/*-----------------------------------------------------------------------*/
#if _USE_LSEEK
FRESULT pf_lseek (
DWORD ofs /* File pointer from top of file */
)
{
CLUST clst;
DWORD bcs, sect, ifptr;
FATFS *fs = FatFs;
if (!fs) return FR_NOT_ENABLED; /* Check file system */
if (!(fs->flag & FA_OPENED)) /* Check if opened */
return FR_NOT_OPENED;
if (ofs > fs->fsize) ofs = fs->fsize; /* Clip offset with the file size */
ifptr = fs->fptr;
fs->fptr = 0;
if (ofs > 0) {
bcs = (DWORD)fs->csize * 512; /* Cluster size (byte) */
if (ifptr > 0 &&
(ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
fs->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */
ofs -= fs->fptr;
clst = fs->curr_clust;
} else { /* When seek to back cluster, */
clst = fs->org_clust; /* start from the first cluster */
fs->curr_clust = clst;
}
while (ofs > bcs) { /* Cluster following loop */
clst = get_fat(clst); /* Follow cluster chain */
if (clst <= 1 || clst >= fs->n_fatent) goto fe_abort;
fs->curr_clust = clst;
fs->fptr += bcs;
ofs -= bcs;
}
fs->fptr += ofs;
sect = clust2sect(clst); /* Current sector */
if (!sect) goto fe_abort;
fs->dsect = sect + (fs->fptr / 512 & (fs->csize - 1));
}
return FR_OK;
fe_abort:
fs->flag = 0;
return FR_DISK_ERR;
}
#endif
/*-----------------------------------------------------------------------*/
/* Create a Directory Object */
/*-----------------------------------------------------------------------*/
#if _USE_DIR
FRESULT pf_opendir (
DIR *dj, /* Pointer to directory object to create */
const char *path /* Pointer to the directory path */
)
{
FRESULT res;
BYTE sp[12], dir[32];
FATFS *fs = FatFs;
if (!fs) { /* Check file system */
res = FR_NOT_ENABLED;
} else {
dj->fn = sp;
res = follow_path(dj, dir, path); /* Follow the path to the directory */
if (res == FR_OK) { /* Follow completed */
if (dir[0]) { /* It is not the root dir */
if (dir[DIR_Attr] & AM_DIR) /* The object is a directory */
dj->sclust = LD_CLUST(dir);
else /* The object is not a directory */
res = FR_NO_PATH;
}
if (res == FR_OK)
res = dir_rewind(dj); /* Rewind dir */
}
if (res == FR_NO_FILE) res = FR_NO_PATH;
}
return res;
}
/*-----------------------------------------------------------------------*/
/* Read Directory Entry in Sequense */
/*-----------------------------------------------------------------------*/
FRESULT pf_readdir (
DIR *dj, /* Pointer to the open directory object */
FILINFO *fno /* Pointer to file information to return */
)
{
FRESULT res;
BYTE sp[12], dir[32];
FATFS *fs = FatFs;
if (!fs) { /* Check file system */
res = FR_NOT_ENABLED;
} else {
dj->fn = sp;
if (!fno) {
res = dir_rewind(dj);
} else {
res = dir_read(dj, dir);
if (res == FR_NO_FILE) {
dj->sect = 0;
res = FR_OK;
}
if (res == FR_OK) { /* A valid entry is found */
get_fileinfo(dj, dir, fno); /* Get the object information */
res = dir_next(dj); /* Increment index for next */
if (res == FR_NO_FILE) {
dj->sect = 0;
res = FR_OK;
}
}
}
}
return res;
}
#endif /* _USE_DIR */
3364.main.c
2313.lcd.h/*****************************************************************/
/********* *********/
/********* FILE: MAIN.C *********/
/********* *********/
/*****************************************************************/
/*****************************************************************/
/********* INCLUDE *********/
/*****************************************************************/
#include <msp430.h>
#include <stdint.h>
#include "main.h"
#include "lcd.h"
#include "diskio.h"
#include "integer.h"
#include "pff.h"
#include "spi.h"
/*****************************************************************/
/********* MAIN *********/
/*****************************************************************/
int SDCARD_Initialize()
{
FRESULT res;
FATFS fs;
// P1DIR |= BIT4; P1SEL |= BIT4;
spi_initialize();
// res = disk_initialize();
pf_mount(&fs);
res = pf_open("log.txt");
if(res != FR_OK){
LCD_SetText("SDCARD ERROR",1,0);
}else{
LCD_SetText("SDCARD OK",1,0);
}
return 0;
}
/*
* MAIN
*/
int main(void){
WORD bw;
char Line[10];
FRESULT res;
WatchDogHold();
LCD_PortConfig();
LCD_Initialize();
LCD_Clear();
SDCARD_Initialize();
res = pf_open("log.txt");
if(res == FR_OK){
LCD_SetText("SDCARD OK",1,0);
bw = 0;
Line[0] = 66;
Line[1] = 65;
Line[3] = '\0';
pf_write(Line,strlen(Line),&bw);
pf_write(0,0,&bw);
}
}
/*****************************************************************/
/********* GLOBAL FUNCTIONS *********/
/*****************************************************************/
void WatchDogHold(void)
{
WDTCTL = WDTPW + WDTHOLD;
}
/*****************************************************************/
/********* END *********/
/*****************************************************************/
1321.lcd.c
1602.integer.h3264.diskio.h
/*****************************************************************/
#include "lcd.h"
/*****************************************************************/
/********* DEFINES *********/
/*****************************************************************/
#define P1orP2lcd 0x0200
#define EN (PP2 + BIT5)
#define RS (PP1 + BIT3)
#define D0 (PP2 + BIT1)
#define D1 (PP2 + BIT2)
#define D2 (PP2 + BIT3)
#define D3 (PP2 + BIT4)
//#define BACKLIGHT (PP1 + BIT0)
// Commands
#define CLEAR 0x01
/*****************************************************************/
/********* LOCAL FUNCTIONS *********/
/*****************************************************************/
void lcdDirPinout(unsigned int pin)
{
if(pin < P1orP2lcd){
P1DIR |= (pin & 0x00FF);
}else{
P2DIR |= (pin & 0x00FF);
}
}
/*
*
*/
void lcdSetPinout(unsigned int pin)
{
if(pin < P1orP2lcd){
P1OUT |= (pin & 0x00FF);
}else{
P2OUT |= (pin & 0x00FF);
}
}
void lcdClrPinout(unsigned int pin)
{
if(pin < P1orP2lcd){
P1OUT &= ~(pin & 0x00FF);
}else{
P2OUT &= ~(pin & 0x00FF);
}
}
void lcdSetValue(unsigned char value)
{
if(value & 0x08){
lcdSetPinout(D3);
}else{
lcdClrPinout(D3);
}
if(value & 0x04){
lcdSetPinout(D2);
}else{
lcdClrPinout(D2);
}
if(value & 0x02){
lcdSetPinout(D1);
}else{
lcdClrPinout(D1);
}
if(value & 0x01){
lcdSetPinout(D0);
}else{
lcdClrPinout(D0);
}
delay_us(10);
}
void lcdTriggerEN()
{
lcdSetPinout(EN);
delay_us(10);
lcdClrPinout(EN);
delay_us(10);
}
void lcdWriteData(unsigned char data)
{
lcdSetPinout(RS); // Set RS to Data
lcdSetValue(data >> 4); // Upper nibble
lcdTriggerEN();
lcdSetValue(data); // Lower nibble
lcdTriggerEN();
delay_us(50); // Delay > 47 us
}
void lcdWriteCmd(unsigned char cmd)
{
lcdClrPinout(RS); // Set RS to Cmd
lcdSetValue(cmd >> 4); // Upper nibble
lcdTriggerEN();
lcdSetValue(cmd); // Lower nibble
lcdTriggerEN();
delay_ms(5); // Delay > 1.5ms
}
/*****************************************************************/
/********* GLOBAL FUNCTIONS *********/
/*****************************************************************/
/*
*
*/
void LCD_PortConfig(void)
{
// Direction
lcdDirPinout(D0);
lcdDirPinout(D1);
lcdDirPinout(D2);
lcdDirPinout(D3);
lcdDirPinout(EN);
lcdDirPinout(RS);
}
/*
*
*/
void LCD_Initialize(void)
{
delay_ms(100);
P2OUT = 0x03; // Start LCD (send 0x03)
lcdTriggerEN(); // Send 0x03 3 times at 5ms then 100 us
delay_ms(5);
lcdTriggerEN();
delay_ms(5);
lcdTriggerEN();
delay_ms(5);
P2OUT = 0x02; // Switch to 4-bit mode
lcdTriggerEN();
delay_ms(5);
lcdWriteCmd(0x28); // 4-bit, 2 line, 5x8
lcdWriteCmd(0x08); // Instruction Flow
lcdWriteCmd(0x01); // Clear LCD
lcdWriteCmd(0x06); // Auto-Increment
lcdWriteCmd(0x0C); // Display On, No blink
}
void LCD_SetText(char* text, int x, int y){
unsigned int i;
if (x < 16) {
x |= 0x80; // Set LCD for first line write
switch (y){
case 1:
x |= 0x40; // Set LCD for second line write
break;
case 2:
x |= 0x60; // Set LCD for first line write reverse
break;
case 3:
x |= 0x20; // Set LCD for second line write reverse
break;
}
lcdWriteCmd(x);
}
i = 0;
while (text[i] != '\0') {
lcdWriteData(text[i]);
i++;
}
}
void LCD_SetInt(int val, int x, int y)
{
char number_string[16];
sprintf(number_string, "%d", val); // Convert the integer to character string
LCD_SetText(number_string, x, y);
}
void LCD_Clear()
{
lcdWriteCmd(CLEAR);
}
void LCD_SetCharacter(unsigned char index, const unsigned char bitmap[8]){
unsigned short iter;
lcdWriteCmd(0x38);
lcdWriteCmd(0x40|(index <<3) & 0x3f);
for (iter = 0; iter!=8;++iter){
lcdWriteData(bitmap[iter]);
}
lcdWriteCmd(0x02);
}
/*****************************************************************/
/********* END *********/
/*****************************************************************/
4274.diskio.c
4213.config.h
/*-----------------------------------------------------------------------*/
/* Low level disk I/O module skeleton for Petit FatFs (C)ChaN, 2009 */
/*-----------------------------------------------------------------------*/
#include <msp430.h>
#include <stdint.h>
#include "diskio.h"
#include "pff.h"
//#include "print.h"
#include "spi.h"
#define DELAY_100US() __delay_cycles(1600) // ( 100us/(1/16Mhz) ) = 1600 ticks
#define SELECT() P2OUT &= ~BIT0 /* CS = L */
#define DESELECT() P2OUT |= BIT0 /* CS = H */
#define MMC_SEL !(P2OUT & BIT0) /* CS status (true:CS == L) */
void SoftSerial_xmit(uint8_t);
#define FORWARD(d) SoftSerial_xmit(d) /* Data forwarding function (Console out in this example) */
/* Definitions for MMC/SDC command */
#define CMD0 (0x40+0) /* GO_IDLE_STATE */
#define CMD1 (0x40+1) /* SEND_OP_COND (MMC) */
#define ACMD41 (0xC0+41) /* SEND_OP_COND (SDC) */
#define CMD8 (0x40+8) /* SEND_IF_COND */
#define CMD16 (0x40+16) /* SET_BLOCKLEN */
#define CMD17 (0x40+17) /* READ_SINGLE_BLOCK */
#define CMD24 (0x40+24) /* WRITE_BLOCK */
#define CMD55 (0x40+55) /* APP_CMD */
#define CMD58 (0x40+58) /* READ_OCR */
/* Card type flags (CardType) */
#define CT_MMC 0x01 /* MMC ver 3 */
#define CT_SD1 0x02 /* SD ver 1 */
#define CT_SD2 0x04 /* SD ver 2 */
#define CT_BLOCK 0x08 /* Block addressing */
static BYTE CardType;
/*-----------------------------------------------------------------------*/
/* Send a command packet to MMC */
/*-----------------------------------------------------------------------*/
static
BYTE send_cmd (
BYTE cmd, /* 1st byte (Start + Index) */
DWORD arg /* Argument (32 bits) */
)
{
BYTE n, res;
if (cmd & 0x80) { /* ACMD<n> is the command sequense of CMD55-CMD<n> */
cmd &= 0x7F;
res = send_cmd(CMD55, 0);
if (res > 1) return res;
}
/* Select the card */
DESELECT();
spi_receive();
SELECT();
spi_receive();
/* Send a command packet */
spi_send((BYTE)cmd); /* Start + Command index */
spi_send((BYTE)(arg >> 24)); /* Argument[31..24] */
spi_send((BYTE)(arg >> 16)); /* Argument[23..16] */
spi_send((BYTE)(arg >> 8)); /* Argument[15..8] */
spi_send((BYTE)arg); /* Argument[7..0] */
n = 0x01; /* Dummy CRC + Stop */
if (cmd == CMD0) n = 0x95; /* Valid CRC for CMD0(0) */
if (cmd == CMD8) n = 0x87; /* Valid CRC for CMD8(0x1AA) */
spi_send(n);
/* Receive a command response */
n = 10; /* Wait for a valid response in timeout of 10 attempts */
do {
res = spi_receive();
} while ((res & 0x80) && --n);
return res; /* Return with the response value */
}
/*-----------------------------------------------------------------------*/
/* Initialize Disk Drive */
/*-----------------------------------------------------------------------*/
DSTATUS disk_initialize (void)
{
BYTE n, cmd, ty, ocr[4];
UINT tmr;
#if _USE_WRITE
if (CardType && MMC_SEL) disk_writep(0, 0); /* Finalize write process if it is in progress */
#endif
spi_set_divisor(SPI_250kHz);
DESELECT();
for (n = 10; n; n--) spi_receive(); /* 80 dummy clocks with CS=H */
ty = 0;
if (send_cmd(CMD0, 0) == 1) { /* Enter Idle state */
if (send_cmd(CMD8, 0x1AA) == 1) { /* SDv2 */
for (n = 0; n < 4; n++) ocr[n] = spi_receive(); /* Get trailing return value of R7 resp */
if (ocr[2] == 0x01 && ocr[3] == 0xAA) { /* The card can work at vdd range of 2.7-3.6V */
for (tmr = 10000; tmr && send_cmd(ACMD41, 1UL << 30); tmr--) DELAY_100US(); /* Wait for leaving idle state (ACMD41 with HCS bit) */
if (tmr && send_cmd(CMD58, 0) == 0) { /* Check CCS bit in the OCR */
for (n = 0; n < 4; n++) ocr[n] = spi_receive();
ty = (ocr[0] & 0x40) ? CT_SD2 | CT_BLOCK : CT_SD2; /* SDv2 (HC or SC) */
}
}
} else { /* SDv1 or MMCv3 */
if (send_cmd(ACMD41, 0) <= 1) {
ty = CT_SD1; cmd = ACMD41; /* SDv1 */
} else {
ty = CT_MMC; cmd = CMD1; /* MMCv3 */
}
for (tmr = 10000; tmr && send_cmd(cmd, 0); tmr--) DELAY_100US(); /* Wait for leaving idle state */
if (!tmr || send_cmd(CMD16, 512) != 0) /* Set R/W block length to 512 */
ty = 0;
}
}
CardType = ty;
spi_set_divisor(SPI_DEF_SPEED);
DESELECT();
spi_receive();
return ty ? 0 : STA_NOINIT;
}
/*-----------------------------------------------------------------------*/
/* Read partial sector */
/*-----------------------------------------------------------------------*/
DRESULT disk_readp (
BYTE *buff, /* Pointer to the read buffer (NULL:Read bytes are forwarded to the stream) */
DWORD lba, /* Sector number (LBA) */
WORD ofs, /* Byte offset to read from (0..511) */
WORD cnt /* Number of bytes to read (ofs + cnt mus be <= 512) */
)
{
DRESULT res;
BYTE rc;
WORD bc;
if (!(CardType & CT_BLOCK)) lba *= 512; /* Convert to byte address if needed */
res = RES_ERROR;
if (send_cmd(CMD17, lba) == 0) { /* READ_SINGLE_BLOCK */
bc = 40000;
do { /* Wait for data packet */
rc = spi_receive();
} while (rc == 0xFF && --bc);
if (rc == 0xFE) { /* A data packet arrived */
bc = 514 - ofs - cnt;
/* Skip leading bytes */
if (ofs) {
do spi_receive(); while (--ofs);
}
/* Receive a part of the sector */
if (buff) { /* Store data to the memory */
do {
*buff++ = spi_receive();
} while (--cnt);
} else { /* Forward data to the outgoing stream (depends on the project) */
do {
FORWARD(spi_receive());
} while (--cnt);
}
/* Skip trailing bytes and CRC */
do spi_receive(); while (--bc);
res = RES_OK;
}
}
DESELECT();
spi_receive();
return res;
}
/*-----------------------------------------------------------------------*/
/* Write partial sector */
/*-----------------------------------------------------------------------*/
#if _USE_WRITE
DRESULT disk_writep (
const BYTE *buff, /* Pointer to the bytes to be written (NULL:Initiate/Finalize sector write) */
DWORD sa /* Number of bytes to send, Sector number (LBA) or zero */
)
{
DRESULT res;
WORD bc;
static WORD wc;
res = RES_ERROR;
if (buff) { /* Send data bytes */
bc = (WORD)sa;
while (bc && wc) { /* Send data bytes to the card */
spi_send(*buff++);
wc--; bc--;
}
res = RES_OK;
} else {
if (sa) { /* Initiate sector write process */
if (!(CardType & CT_BLOCK)) sa *= 512; /* Convert to byte address if needed */
if (send_cmd(CMD24, sa) == 0) { /* WRITE_SINGLE_BLOCK */
spi_send(0xFF); spi_send(0xFE); /* Data block header */
wc = 512; /* Set byte counter */
res = RES_OK;
}
} else { /* Finalize sector write process */
bc = wc + 2;
while (bc--) spi_send(0); /* Fill left bytes and CRC with zeros */
if ((spi_receive() & 0x1F) == 0x05) { /* Receive data resp and wait for end of write process in timeout of 500ms */
for (bc = 5000; spi_receive() != 0xFF && bc; bc--) DELAY_100US(); /* Wait ready */
if (bc) res = RES_OK;
}
DESELECT();
spi_receive();
}
}
return res;
}
#endif
