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no operation when no connection ST-linker/v2 debugger

Lee Young Jun
Associate
Posted on March 06, 2018 at 10:58

Hello, I'm STM8S user.

my ask is why that mcu is no operation when no connection of st-link debugger.

If i'm doing downloading the Hex file in the mcu, so mcu is operating, But ejecting the st-link debugger at the PC,

mcu is no operation.

1 REPLY 1
Posted on March 06, 2018 at 16:18

So either you have an external pin changing the boot mode, or your code doesn't initialize something (clock, GPIO, etc) that the debugger does.

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