7.3. The Flash driver

This library is an implementation of the STM32F4 flash device driver.

It provide an abstraction of the flash device interactions through high level API in order to read, write, (un)lock the flash memory.

The current implementation of this flash driver support various STM32 flash intgrated flash devices components, including 1M and 2M flash banks, with both signle and double banking.

Table of Contents

• 7.3.1. About the flash principle
  • 7.3.1.1. Principles
• 7.3.2. The drvFlash API
  • 7.3.2.1. Initializing the flash driver
  • 7.3.2.2. Handling flash components mapping
  • 7.3.2.3. (Un)locking flash memory
  • 7.3.2.4. Accessing flash option registers
  • 7.3.2.5. Erasing flash data
  • 7.3.2.6. Writting data to flash
  • 7.3.2.7. Reading into flash
• 7.3.3. FAQ
  • 7.3.3.1. Is the Flash driver handling 1M and 2M flash memory ?
  • 7.3.3.2. Is the flash driver support mono-bank and dual-bank mode ?
  • 7.3.3.3. Is there helper for RDP/WDP access ?
  • 7.3.3.4. I can’t map all my devices ! Why ?