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How to enable flash dual bank
Some devices like the STM32F76x support the Flash Dual Bank mode.
Follow these steps to enable it:
- Enable the Flash Dual Bank option bytes using the STM32 STLink-Utility software
The STM32 STLink-Utility software can be downloaded here:
http://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/stsw-link004.html
You have to uncheck the nDBANK box:
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- Enable the FLASH_DUAL_BANK configuration in the code.
You can either modify the targets.json file and write 1 to the flash_dual_bank configuration. Note that this configuration is only available on the platforms that support the dual bank (STM32F76x).
"flash_dual_bank": {
"help": "Default board configuration is Single Bank Flash. If you enable Dual Bank with ST Link Utility, set value to 1",
"value": "1"
},
or create a mbed_app.json file and add these lines (example for NUCLEO_F767ZI platform):
"target_overrides": {
"NUCLEO_F767ZI": {
"flash_dual_bank": "1"
}
}
Rebuild your code.
Drag & Drop your application on the platform.
- You may need also to upgrade the STLink fw on the board to the latest version (V2.J30.M21 as of today).
See the mbed-cli documentation for more information on the configuration system syntax.