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STM32CubeProgrammer
The CubeProgrammer is a GUI for a CLI delivered with the STM32CubeIDE. As such the STM32CubeProgrammer is completely optional for the project. Nonetheless, we have discovered that there might arise some issues with the CLI that we couldn't pin to a certain cause. Therefore we recommend the usage of the STM32CubeProgrammer and the below described features. We strongly recommend to check out the getting started guide or the warning section before you change any settings in the CubeProgrammer
Please note these warnings before you start configuring your board
- In the Option Bytes configuration, there is a rider called RDP. Do NOT configure RDP to be on level 2, you will not be able to work with the board anymore
- If you turn RDP on any level higher than 0 you may not be able to configure the board without taking some other steps beforehand. Please read the section about how your board should be configured, or the troubleshooting guide (Disable TrustZone and Read Out Protection) before advancing any further
- To disable TrustZone with the CubeProgrammer, you need to set RDP to be on level 1 or level 0.5 (exclusively available with TrustZone enabled).
Here is the standard configuration of the Option Bytes both of us used during the project. You may fall back to these if you have any trouble downloading or flashing the board with the CubeIDE. Furthermore, there is a label [required] for configurations that are strictly required by documentation. All other configuration are, as far as we can tell, not necessary. Nevertheless, they are documented in case there are unknown dependencies between these configurations
- nRST_STOP, nRST_STDBY, nRST_SHDW, IWDG_SW, IWDG_STOP, IWDG_STDBY, WWDG_SW all checked
- SWAP_BANK unchecked; DB256 checked
- DBANK checked [required]
- SRAM2_PE, SRAM2_RST both unchecked
- nSWBoot0 checked [required]
- nBOOT0 checked
- PA15_PUPEN checked
- TZEN checked [required]
- HDP1EN unchecked, HDP1_PEND with value 0x0 and address 0x08000000 and the same for HDP2EN and HDP2_PEND
- NSBOOTADD0 with value 0x100000 and address 0x08000000
- NSBOOTADD1 with value 0x17f200 and address 0x0bf90000
- SECBOOTADD0 with value 0x180000 and address 0x0c000000
- BOOT_LOCK unchecked [required]
- SECWM1 PSTRT with value 0x0 and address 0x08000000 [required]
- SECWM1 PEND with value 0x7f and address 0x0803f800 [required]
- WRP1A_PSTRT with value 0x7f and address 0x0803f800
- WRP1A_PEND with value 0x0 and address 0x08000000
- WRP1B_PSTRT with value 0x7f and address 0x0803f800
- WRP1B_PEND with value 0x0 and address 0x08000000
- SECWM2_PSTRT with value 0x1 and address 0x08040800 [required]
- SECWM2_PSTRT with value 0x0 and address 0x08000000 [required]
- WRP2A_PSTRT with value 0x7f and address 0x0807f800
- WRP2A_PEND with value 0x0 and address 0x08040000
- WRP2B_PSTRT with value 0x7f and address 0x0807f800
- WRP2B_PEND with value 0x0 and address 0x08040000
Other than some missing options and TrustZone being disabled, all configurations mentioned above apply to the NonSecure project
- On the bottom left corner there is an eraser symbol. You may use this as this erases the complete flash memory
- In the top left corner there is a pencil depicted. You may use this to read data in a specific location. This can be useful for troubleshooting (see the section about troubleshooting)