xenial (1) eep24c.1.gz

NAME

       eep24c - read and write 24Cxxx eeprom devices

SYNOPSIS

       eep24c -d device [ -r[n] filename | -w[n] filename | -k[n] filename | -f[n] xx ]

DESCRIPTION

       The command eep24c can be used to read and write 24Cxxx eeprom devices.

OPTIONS

       The 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 EXAMPLES

       eep24c -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 FORMAT

       Input 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 SPECIFIC

       If  you  are  using  Microchip 24*515, you must tie its pin A2 to VCC (needs a hardware modification, see
       device datasheet).

SEE ALSO

       ihex2txt(1), txt2ihex(1).

AUTHOR

       This manual page was written by Pedro Zorzenon Neto <pzn@vztech.com.br>.

                                                   2002-11-14                                          EEP24C(1)