Datasheet - Blunk Microsystems
Contents
1. int feof FILE stream int ferror FILE stream int flush FILE stream int fgetc FILE stream const char int fgetpos FILE stream fpos_t pos char fgets char s int n FILE stream int fileno FILE stream FILE fopen const char filename const char mode int format char path int fprintf FILE stream char format FILE stream FILE const int fputc int c int fputs const char string xstream size_t fread void ptr size_t FILE stream FILE freopen const char filename const char mode FILE stream int fscanf FILE stream xformat 3 int fseek FILE stream int mode size size_t nmemb const char long offset int fsetpos FILE stream const fpos_t pos int fstat int fid xbuf long ftell FILE stream size_t fwrite const void ptr struct stat size t size size_t nmemb FILE stream int getc FILE stream int getchar void char getcwd char buf char gets char s size_t size int link const char existing const char new off _t lseek int fid int whence off_t offset Price and Licensing Terms TargetFFS is royalty free Purchasers are granted a non exclusive license to use the provided source code at a single site Licensees have the right to disseminate or resell the software in executable format only The source code and derived object code may not be redistributed or resold int mkdir const cha2. creating directories listing directories etc and a binary search application The shell may be extended with user commands Developed using TargetOS Blunk Microsystems real time operating system the source code is 100 ANSI C and is easily ported to other real time kernels Integrated with CodeWarrior the development environment from Metrowerks with an integrated source level debugger compiler assembler linker editor and GUI make tool Royalty free Includes full source code user s manuals sample applications and one year of technical support gt CONTACT INFORMATION e Visit our web site www blunkmicro com e Customer Support 408 323 9833 e Technical Support 408 323 1758 o Fax 408 323 1757 e E mail sales blunkmicro com e Address 6576 Leyland Park Drive San Jose CA 95120 USA AVAILABLE COMPONENTS TargetOS Real time deterministic multi tasking priority based preemptive kernel Includes Standard C library TargetTCP RFC compliant TCP IP protocol stack providing the standard Berkeley Sockets API TargetLAPB ISO IEC 7776 protocol stack Supports exchanging data on point to point networks Provides automatic flow control and data reliability The TargetFFS Application Program Interface int chdir const char path void clearerr FILE stream int close int fid int closedir DIR dirp int fclose FILE stream FILE fdopen int fid mode
3. TargetFFS HIGHLIGHTS e Royalty Free e Reliable Re entrant Embedded File System e Provides POSIX and Standard C API e Use of Flash Memory is Invisible to Applications e Supports Dynamic Creation and Deletion of Files Directories and Links e Complete Wear Leveling e Guaranteed Integrity Across Unexpected Resets e Supports Multiple Volumes e Includes Shell Application e Works with TargetOS e Integrated with CodeWarrior Blunk Microsystems provides system software device drivers and board support packages to the embedded systems market both off the shelf products and custom work done under contract BLUNK Microsystems FLASH FILE SYSTEM TargetFFS is a reliable re entrant embedded file system with a POSIX and ANSI C compliant application program interface Supports dynamic creation and deletion of files directories and links with read and write capability Not a static ROM image file system Use of flash media for the backing store is invisible to the application layer Supports the large erasable block sizes typical of flash memory usu ally 64KB or larger Memory is logi cally divided into 512 byte sectors that are assigned to individual files as needed Before a block is erased the sectors in use are copied to another block Implements complete wear leveling to prevent premature failure of the flash media Erase cycles are spread evenly across all sectors A wear count
4. is maintained starting with the first time a flash volume is for matted The current wear count is available to applications via the vstat call File system integrity is guaranteed across unexpected shutdowns Only data written since the last synchroniz ing operation fclose fflush etc can be lost Directory structures closed files and files open for reading are never at risk Thin hardware dependent layer for maximum ease in porting to new platforms Supports linearly addressable flash with a 32 16 or 8 bit interface to the CPU Wider interfaces and interleaved devices provide higher performance Includes an example driver for a 4MB flash memory that uses four 8 bit devices to implement a 32 bit wide interface with erasable blocks of size 256KB Supports concurrent use of multi ple volumes Flash volumes can be permanently installed at startup or added and deleted as removable devices come and go Flash memory can be shared between a boot program and a TargetFFS volume Because flash memory is not accessible while being erased or programmed the boot program can read files change directories etc but cannot create files directories or links Alternatively the boot program can copy itself to RAM and jump there before making calls to TargetFFS Low priority background task does garbage collection to ensure minimal use of RAM Shipped with two sample applica tions a shell that supports
5. r path mode_t mode int mount char path int open const char path int oflag DIR opendir const char dirname void perror const char s int printf const char format FILE stream int putchar int c int puee ant c int puts const char s void buf unsigned int nbyte struct dirent readdir DIR dirp int remove const char filename int read int fid int rename const char old const char new void rewind FILE stream void rewinddir DIR dirp int rmdir const char path int scanf const char format void setbuf FILE stream char buf int setvbuf FILE stream char xbuf int stat const char path stat buf FILE tmpfile void char tmpnam char s FILE stream int unlink const char path int mode size_t size struct int ungetc int c int unmount char path int utime const char path const struct utimbuf times int vfprintf FILE stream const char format va_list arg int vprintf const char format va_list arg int vstat const char path union vstat buf int write int fid const void buf unsigned int nbyte B Pricing is 5 000 for a one year term license and 15 000 for a perpetual license The term license allows development use of the software for one year from the date of purchase License renewal is not required to fix bugs or to duplicate executable code
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