QSPI NOR Flash: can write data but can't read from it

[Naresh_]

Hi 

i am using stm32f767IGK6 i am able to write data in nor flash but  can't read  data of same address.

by use this APIs HAL_QSPI_Transmit(), HAL_QSPI_Receive()

Regard & Thanks,

Naresh 

[KDJEM.1]

Hello @Naresh_ ,

Could you please give more detail about the issue.

Are you read data in memory mapped mode or indirect mode?

Could you please take a look at the errata sheet precisely:

• 2.4.2 Wrong data from memory-mapped read after an indirect mode operation
• 2.4.4 Memory-mapped access in indirect mode clearing QUADSPI_AR register

May QSPI_ReadWrite_IT this example can help you.

Thank you.

Kaouthar

[Tesla DeLorean]

Your presentation of the problem and the context is inadequate.  Try harder as if you're explaining to someone who's not physically watching you code and test the issue.