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help: programming the FLASH excess the physical memory size

Question asked by on Oct 13, 2015
Latest reply on Oct 14, 2015 by Clive One
the mcu i used : STM32F105R8T6, the flash size is 64k, according to the PM0075, the last page should be 0x0800 F800 ~ 0x0800 FFFF. However I tried to write and read back the data on page 0x0802 0000 ~ 0x0802 07FFF , and page 0x0803 F800 ~ 0x0803 FFFF, it still works ! ( I did recycle the power to make sure the data has been saved on FLASH then did the read back operation)

Can anyone help me to explain this ? many thanks!