Resolved! How much flash the BSP_QSPI_Erase_Block() erases ?
I am using STM32F769I-DISO board with an MX25L51245G QSPI chipAs I understand it, I must erase before writing. So if I have 100 bytes of date on the QSPIand I want to change byte number 51 in my 100 byte data I should first eras this location.Howev...