Thank You for info but its not exactly what i am looking for. Basically i need to communicate to chip in "Flash programming mode". Regarding documantation specific setting of MODE(0-2) pins during reset forces chip to run bootsrap instead of normal flash fw. Boostrap is waiting for commands on UART or SPI. I need those commands or software or wathewer solution that helps me to load fw to the chip via UART in bootstrap mode.
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