How to enable boot mode to write in the flash memory of SPIN 32F02 board??

[JMacc]

Hello, I have the spin32f02 board, which I am trying to write the 6 step algorithm into flash memory, I followed all the steps, and configuration available in manual, but it didn't work.

Whenever I plug in the board, uses only 4kb of RAM and I need the 32kb flash memory.

PLEASE HELP ME