UM1539 datasheet(21/46 Pages) STMICROELECTRONICS

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UM1539

Getting started

Doc ID 023106 Rev 1

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button which returns the status of the memory being protected or not. Writing PSWP

permanently protects the memory for read and write.

Once the memory is permanently write protected then neither read nor write is possible

for the lower half memory area.

To read the data byte at any specific location, select the location in the editable window

and press the Read Byte button, it reads the selected location data from the sensor

EEPROM and displays at the location in the editable area in the GUI.

The Read All button reads all the 256 bytes from the sensor EEPROM and displays it in

the editable area.

To write a single byte at a specific location, change the byte value and press the Enter

button on the computer. Then press Write Byte to write the data in the EEPROM.

To write all the 256 bytes of EEPROM, press the Write All button in the GUI. This writes

the bytes as seen in the editable box. To change the bytes at the memory location, type

the new value at that memory location and press Enter. To modify another memory

location, go to that location, type the bytes and then press Enter.

After all values are changed according to requirements, press Write All to program the

values in the EEPROM.

Fill Buffer is used to fill the area of EEPROM with the same data byte. Type the memory

location from where the data is to be written and also the destination memory location

address. Then enter the data byte in the Fill With area. Pressing the Fill Buffer button

programs the EEPROM selected area with selected data byte. This data byte can be

seen in the GUI by pressing the Read All button.

Copy Block is used to copy the data from memory location 0x00-0x7F to the location

0x80-0xFF. Therefore both upper and lower 1 Kbit data is similar after the Copy Block

command.

10. The settings for the EEPROM of the STTS424E02 sensor are shown in Figure 13.

Figure 13.

GUI window for EEPROM section of STTS2002 temperature sensor

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