avancee systeme de fichiers pour carte mere

SD/Makefile

@@ -6,7 +6,7 @@ export TARGET_ARCH = -mmcu=$(MCU)
 export CFLAGS =  -Wall -I. -DF_CPU=16000000 -Os -DDEBUG -DTEST_WRITE -DTEST_READ #-g
 export LDFLAGS = -g $(TARGET_ARCH) -lm -Wl,--gc-sections #	-Os
 
-TARGET = fileSystem
+TARGET = picofs
 TERM = /dev/ttyUSB0
 CPPFLAGS = -mmcu=$(MCU)
 PGMER = -c stk500v1 -b 57600 -P $(TERM)

SD/Sd2Card.c

@@ -294,7 +294,7 @@ info->partialBlockRead_ = value;
  */
 uint8_t readData(SD_info *info, uint32_t block, uint16_t offset, uint16_t count, uint8_t* dst) {
 if(count==0) return true;
-if((count+offset)>512){ goto fail; }
+if((count+offset)>256){ goto fail; }
 if(!info->inBlock_||block!=info->block_||offset<info->offset_){
   info->block_=block;
   // use address if not SDHC card
@@ -315,7 +315,7 @@ uint16_t i;
 for(i=0;i<count;i++) dst[i]=spi_exch(0xff);
 
 info->offset_ += count;
-if(!info->partialBlockRead_||info->offset_>=512){
+if(!info->partialBlockRead_||info->offset_>=256){
   // read rest of data, checksum and set chip select high
   readEnd(info);
   }
@@ -336,8 +336,8 @@ return false;
  * \return The value one, true, is returned for success and
  * the value zero, false, is returned for failure.
  */
-uint8_t readBlock(SD_info *info, uint32_t block, uint8_t* dst) {
-return readData(info, block, 0, 512, dst);
+uint8_t readBlockSD(SD_info *info, uint32_t block, uint8_t* dst) {
+return readData(info, block, 0, 256, dst);
 }
 
 //------------------------------------------------------------------------------
@@ -345,7 +345,7 @@ return readData(info, block, 0, 512, dst);
 static uint8_t writeData_(SD_info *info, uint8_t token, const uint8_t* src) {
 spi_exch(token);
 uint16_t i;
-for(i=0;i<512;i++) spi_exch(src[i]);
+for(i=0;i<256;i++) spi_exch(src[i]);
 spi_exch(0xff);  // dummy crc
 spi_exch(0xff);  // dummy crc
 info->status_=spi_exch(0xff);
@@ -378,7 +378,7 @@ return writeData_(info, WRITE_MULTIPLE_TOKEN, src);
  * \return The value one, true, is returned for success and
  * the value zero, false, is returned for failure.
  */
-uint8_t writeBlock(SD_info *info, uint32_t blockNumber, const uint8_t* src) {
+uint8_t writeBlockSD(SD_info *info, uint32_t blockNumber, const uint8_t* src) {
 // use address if not SDHC card
 if(info->type_!=SD_CARD_TYPE_SDHC) blockNumber <<= 9;
 if(cardCommand(info, CMD24, blockNumber)){

SD/Sd2Card.h

@@ -68,8 +68,8 @@ uint8_t erase(SD_info *info, uint32_t firstBlock, uint32_t lastBlock);
 uint8_t sd_init(SD_info *info);
 void partialBlockRead(SD_info *info, uint8_t value);
 uint8_t readData(SD_info *info, uint32_t block, uint16_t offset, uint16_t count, uint8_t* dst);
-uint8_t readBlock(SD_info *info, uint32_t block, uint8_t* dst);
+uint8_t readBlockSD(SD_info *info, uint32_t block, uint8_t* dst);
 uint8_t writeData(SD_info *info, const uint8_t* src);
-uint8_t writeBlock(SD_info *info, uint32_t blockNumber, const uint8_t* src);
+uint8_t writeBlockSD(SD_info *info, uint32_t blockNumber, const uint8_t* src);
 uint8_t writeStart(SD_info *info, uint32_t blockNumber, uint32_t eraseCount);
 uint8_t writeStop(SD_info *info);