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Maximilian Seesslen, 21.11.2025 16:03

1 1 Maximilian Seesslen 
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Using ST-tools to flash images to SPI would be really nice. The Bootloader protocol is not that complicated.





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https://www.st.com/en/development-tools/stm32cubeprog.html





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https://www.st.com/resource/en/application_note/an3155-usart-protocol-used-in-the-stm32-bootloader-stmicroelectronics.pdf





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The code should run on PC in order to test it. The serial interface can be a pseudo device:





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<pre><code class="shell">





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socat -d -d pty,rawer,link=host,echo=0 pty,rawer,link=target,echo=0





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</code></pre>





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2 Terminals are needed:





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<pre><code class="shell">





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${HOME}/STMicroelectronics/STM32Cube/STM32CubeProgrammer/bin/STM32_Programmer_CLI -c port=$PWD/host -e all -d theme_noto/media.bin 0x0





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</code></pre>





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<pre><code class="shell">





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tio -t -l tio.log $PWD/target





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</code></pre>