Programmator for microcircuits S3CC921

Programmator for microcircuits S3CC921

Actually the program

The program for a printer insertion

Programmator for microcircuits S3CC921

Andrey Lutova's article laid out in an easy approach

About chip S3CC921.

Impossibility of an insertion notorious samsung chips with kripto protection S3CC921, and in general their absence separately from firm cartridges did refueling of printers and Many functional devices where they are applied, impossible. Throughout a year successfully enough "struggled" with such printers by single change of an insertion of the printer on modified, allowing the printer to work without the chip. But the manufacturer in the answer has closed access to the insertions, and to "get" an insertion it is possible not from any model so the problem of refueling of cartridges new samsung printers remains actual. The program PS3CC921.EXE allows to read and write down these chips with some restrictions. It is the test programmators version. While programmator can work only with one version of the chip from 4 possible and writes down only a part of the read. Program restrictions are connected with absence at me in general any information on this chip that is why all stated is extracted further and continues to be extracted exclusively by practical consideration. Nevertheless even in such kind the program can be useful.

Iron.

For program work the computer having at least one "present" consecutive or parallel port is necessary programmator I2C for COM or LPT port, and also. The program доступается to them by means of the driver I2CDRV.SYS so USB emulators of these ports won't work. Parameters of all parallel and serial ports undertake from the register, and then ports are scanned about connected programmator.

Though on responses the chip works and from 5 volt foods, but I just in case on it I have submitted a food with USB through the stabilizer on 3.3 volts 78ls33. On 3.3 volts I have fastened and tightening resistors on tires SDA and SCL.

The program.

Programmator is a console program. If it to start without parameters, she reads the chip and writes down contained in file RS3CC921.BIN in the size of 384 bytes in a current folder. At start with a file name in a command line the program reads this file and writes contained in a microcircuit. Is accepted only files in length of 384 bytes.

To edit the received binary file it is possible in any HEX-editor, for example, will approach FlexHex, WinHex.

As I have understood, memory of a microcircuit consists of 2 blocks. The first block has the size of 256 byte and is in a file to 0x00 addresses – 0xFF (hex). This block is read and registers programmator without problems, and here there is a majority of counters of the printer. I will notice that the memory area 0xC0 – 0xFF isn't used by printers, and in different chips contains the different data. For an exception cтирания this information

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