How does Flash Eeprom work?

How does Flash Eeprom work?

How does Flash Eeprom work?

EEPROM is short for “electrically erasable programmable read-only memory.” It’s a flash drive memory device designed to retain the stored information even when the power is off. The chip allows developers to write and program the IC many times. This will enable it to act as EPROM, a UV erasable programming ROM.

Does STM32 have EEPROM?

STM32 ARM uC’s like STM32F103 do not have EEPROM, so it is emulated by a software library.

What is the difference between an EEPROM and a flash?

The main difference between EEPROM and flash memory is that most EEPROM devices can erase any byte of memory at any time. Flash memory can only erase an entire chunk, or “sector”, of memory at a time. This means that flash memory can wear out faster than EEPROM.

Is Flash Eeprom volatile?

EEPROM (also E2PROM) stands for electrically erasable programmable read-only memory and is a type of non-volatile memory used in computers, integrated in microcontrollers for smart cards and remote keyless systems, and other electronic devices to store relatively small amounts of data by allowing individual bytes to be …

Is flash better than EEPROM?

Flash memory has many features. It is a lot cheaper than EEPROM and does not require batteries for solid-state storage such as static RAM. Flash uses NAND-type memory, while EEPROM uses NOR type. Flash is block-wise erasable, while EEPROM is byte-wise erasable.

Is flash memory faster than EEPROM?

Flash actually is an offspring of EEPROM, which stands for Electrically Erasable Programmable Read-Only Memory. The main difference between EEPROM and Flash is the type of logic gates that they use. While EEPROM uses the faster NOR (a combination of Not and OR), Flash uses the slower NAND (Not and AND) type.

How do you use EEPROM?

Read Something Reading from the EEPROM basically follows the same three step process as writing to the EEPROM: Send the Most Significant Byte of the memory address that you want to write to. Send the Least Significant Byte of the memory address that you want to write to. Ask for the data byte at that location.

How do I use STM32 EEPROM?

  1. Here I am first erasing the entire EEPROM.
  2. Then load the data into the write buffer. This data is just the ascii characters.
  3. Now write the data to the EEPROM at the 3rd page with an offset of 10 bytes.
  4. And finally start reading from the beginning of the first page to see if the offset was set or not.

Is Flash better than EEPROM?