Solved: Re: No option byte for dual-bank flash memory in c... - STMicroelectronics Community

I have STM32CubeProgrammer v2.13.0 and I want to enable dual-bank flash memory on my F7 microcontroller (which supports this configuration) via the option bytes.

However, there is no such option byte available to enable dual-bank mode.

How should I enable dual-bank mode if the option byte isn't available?

1 ACCEPTED SOLUTION

Accepted Solutions

Hello @McFlyz ,

Could you please precise the STM32F7 product you are using?

The dual bank mode is supported in STM32F76xxx and STM32F77xxx MCUs.

And the Flash memory read operations with two data width modes supported:

– Single bank mode nDBANK=1: read access of 256 bits

– Dual bank mode nDBANK=0: read access of 128 bits

And this options bytes is available in STM32CubeProgrammer.

Please refer to the reference manual of your MCU and precisely Embedded Flash memory (FLASH) section and check if the dual bank mode is supported in your MCU.

When your question is answered, please close this topic by choosing Select as Best. This will help other users find that answer faster.

Kaouthar

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

View solution in original post

2 REPLIES 2

Hello @McFlyz ,

Could you please precise the STM32F7 product you are using?

The dual bank mode is supported in STM32F76xxx and STM32F77xxx MCUs.

And the Flash memory read operations with two data width modes supported:

– Single bank mode nDBANK=1: read access of 256 bits

– Dual bank mode nDBANK=0: read access of 128 bits

And this options bytes is available in STM32CubeProgrammer.

Please refer to the reference manual of your MCU and precisely Embedded Flash memory (FLASH) section and check if the dual bank mode is supported in your MCU.

When your question is answered, please close this topic by choosing Select as Best. This will help other users find that answer faster.

Kaouthar

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

I have found it in the "User Configuration" tab thanks!