MSPM0C1104: Secondary BSL doesn't work(I2C, UART)

Tool/software:

Hello Guru,

As you know, MSPM0 C-series doesn't have ROM BSL. So, I try to utilize Secondary BSL.

I try to use both I2C, UART invoke. But both communication doesn't work.

1. I2C

Host - 'bsl_host_mcu_to_mspm0c110x_target_i2c_LP_MSPM0C1104_nortos_ticlang'

Target - 'flash_bsl_LP_MSPM0C1104_nortos_ticlang' + 'bsl_software_invoke_app_demo_i2c_LP_MSPM0C1104_nortos_ticlang'

Host sends '0x22' to target, and the target looks like go into BSL mode.

But next sequence, target sends NACK and communication stops.

2. UART

Host - 'bsl_host_mcu_to_mspm0c110x_target_uart_LP_MSPM0C1104_nortos_ticlang'

Target - 'flash_bsl_LP_MSPM0C1104_nortos_ticlang' + 'bsl_software_invoke_app_demo_uart_LP_MSPM0C1104_nortos_ticlang'

At first, Host sends 'Start application' command even if previous command doesn't end.

So, I added 10ms delay to avoid conflict.

After added 10ms delay, signal conflict was solved and Target sends right response.

But the target doesn't run. Also, Uniflash doesn't work(It can be solved thru DSSM Factory reset).

Do you know the reason whey UART, I2C BSL doesn't work?

Thank you in advance!