Arm Mbed and Pelion Device Management support forum

Why do I need to press reset button after copying the '.bin' file from MBED compiler to B-L475E-IOT01A board for the code to run

I have to press the reset button everytime I copy the ‘.bin’ file to the B-L475E-IOT01A1 board for the code to run. Is there a way to run the code without pressing the reset button?

Hi
What is your HW revision ?

Please find the details below:
Board - B-L475E-IOT01A2
Rev - MB1297 C-01

OK, you have an old one…

See User Manual: https://www.st.com/resource/en/user_manual/dm00347848-discovery-kit-for-iot-node-multichannel-communication-with-stm32l4-stmicroelectronics.pdf
in Appendix C Board revision history and limitations

You should get a D-01 version

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Okay, Thank you for the information.

So, just wanted to check if there is no workaround to run the code without pressing reset button for revision C boards?

See in Appendix C:
a simple workaround is available
by soldering an external wire
between the SB2 and SB8.