NAMEeep24c - read and write 24Cxxx eeprom devices
SYNOPSISeep24c -d device [ -r[n] filename | -w[n] filename | -k[n] filename | -f[n] xx ]
DESCRIPTIONThe command eep24c can be used to read and write 24Cxxx eeprom devices.
OPTIONSThe following options are available: -d device Specify the device type. To see a list of the supported devices, try -d help -r filename Read from eeprom and save to a file. -w filename Read from a file and write to eeprom. The addresses not specified in the input file will be filled with 00. -k filename Read from a file and write to eeprom. The addresses not specified in the input file will be kept with its previous values. (this mode is twice slower. It reads whole memory to know previous values, then write whole memory) -f XX Fills the whole eeprom with XX (XX is an hexadecimal value) n Can be used to multiply clock time. If you have a long cable, you may use this option. Example: -r5 will read eeprom 5 times slower (pulse width will be standard value multiplied by 5). Valid range for n is from 1 to 50. Default value is 1.
USAGE EXAMPLESeep24c -d 24c04 -r file.hex read eeprom, write to file.hex eep24c -d 24c04 -r3 file.hex read eeprom, write to file.hex, 3 times slower. eep24c -d 24c04 -w file.hex read file.hex and write to eeprom. All the bytes not found in file.hex will be written as 00. eep24c -d 24c04 -k file.hex read file.hex and write to eeprom. All the bytes not found in file.hex will remain unchanged. eep24c -d 24c04 -f 7A fill eeprom with 7A (hexadecimal).
INPUT AND OUTPUT FORMATInput and output file format is Intel Hexadecimal Object File Format You can find this specification at ftp://download.intel.com/support/processors/ i960/devtools/INTELHEX.PDF Record types 00 and 01 are implemented in this version. In input lines, LF and CR+LF are accepted as newline markers. Output files are generated with LF as a newline marker.
DEVICE SPECIFICIf you are using Microchip 24*515, you must tie its pin A2 to VCC (needs a hardware modification, see device datasheet).
SEE ALSOihex2txt(1), txt2ihex(1).
AUTHORThis manual page was written by Pedro Zorzenon Neto <email@example.com>. 2002-11-14 EEP24C(1)