FAT32 Fixes for SD lib (easy)

[JacobChrist]

The following changes are needed for Fat32 file systems:

hardware/pic32/libraries/SD/utility/SdFile.cpp

http://www.chipkit.org/forum/viewtopic.php?p=2702#p2702

ound a part of the FAT32 bug. It's in the same SDFile.cpp, openRoot method, where in calling vol->chainSize(firstCluster, &fileSize), fileSize_'s address is not correct. Tried this and works to open a FAT32 card , it says it creates a new file, but I didn't check the card. So I don't know if there is another bug remained or not.

Initial code in the openRoot method is: Code: if (!vol->chainSize(firstCluster, &fileSize)) return false;

Modified code in the openRoot method is: Code: uint32t *pfileSize = new uint32t(); *pfileSize = fileSize; if (!vol->chainSize(firstCluster, pfileSize)) { Serial.println("Error opening FAT32 filesystem"); return false; } Serial.println("Success opening filesystem"); fileSize = *pfileSize; delete pfileSize; pfileSize_ = NULL;

The Serial.println's are just for debugging.

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http://www.chipkit.org/forum/viewtopic.php?p=2669#p2669

uint8_t SdFile::addCluster() { uint32t *curClusterP = new uint32t(); *curClusterP = curCluster; if (!vol->allocContiguous(1, curClusterP)) return false; curCluster = *curClusterP; delete curClusterP; curClusterP = NULL; // if first cluster of file link to directory entry if (firstCluster == 0) { firstCluster = curCluster; flags_ |= F_FILE_DIR_DIRTY; } return true; }

[GeneApperson]

Jacob, Thanks for this information. I have someone working on trying to track down the problems with SD right now. I'll have her look at this right away.

GeneApperson