Programátor pamětí EEPROM 93LC56

The program is written in Visual Basic 6. The hardware is connected via LPT port. The programmed memory is powered directly from the PC parallel port via pins 8 and 9. The DO output is modulated by a transistor switch. JP1 connection is used for memory configuration. Setting whether the memory will be 8/16 bit can be done using a program (it is necessary to write modules for 16 byte operation).

If you do not insert any shorting pin into jumper JP1, the memory runs in 16-bit mode. When the shorting pin is pushed onto pins 2 and 3, the 8-byte memory mode is used. And the last option, pins 1 and 2 of jumper JP1, allow you to control the word width of the memory in the program. The PROCESS LED is used to test the device to see if the parallel port is well configured.If the programmer does not work, make changes to the LPT port settings in the computer BIOS. And it also indicates the memory work. The program is written for WinXP but will run under Win2000 without any problem. For lower systems you need to modify the communication function.