Tool/software:
Hi team,
My customer refer to "bsl_software_invoke_app_demo_uart" project. They find out the subroutine invokeBSLAsm() will erase SRAM. However, customer need to reserve one flash at “SRAM 0x20208000”, then their bootloader code will check this flag and do different options. They ask help as below.
1. in invokeBSLAsm(), could they skip erase SRAM ?
2. else, is there any way to keep the flag value (somewhere inside SRAM) ? Then their bootloader can check this flag value.
Hi Jerry,
Sorry for the delay.
1. in invokeBSLAsm(), could they skip erase SRAM ?
Customer can try it, but we do not recommend not clearing the SRAM before jumping to BSL.
2. else, is there any way to keep the flag value (somewhere inside SRAM) ? Then their bootloader can check this flag value.
Maybe customer can try to store it in the SHUTDOWN memory as shown below in the TRM, invokeBSLAsm() will not clear the SHUTDOWN Memory.
Best Regards,
Peter
Hi Jerry,
We have provided the example "sysctl_shutdown_LP_MSPM0xxxx_nortos_ticlang" in the SDK as shown below.
Best Regards,
Peter
