stm32f4xx: use --connect-under-reset for st-flash#175
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Flashing STM32F4xx family devices with st-flash may fail when the MCU is
already running or left in an invalid state after reset.
Observed error from st-flash:
st-flash 1.8.0
ERROR common.c: Can not connect to target.
Please use 'connect under reset' and try again
Failed to connect to target
Failed to parse flash type or unrecognized flash type
Enable "connect under reset" by default when invoking st-flash for the
STM32F4xx family, as recommended by st-flash itself, to improve flashing
reliability.
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Thank @KunYi for contributing! |
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Flashing STM32F4xx family devices with st-flash may fail when the MCU is already running or left in an invalid state after reset.
Observed error from st-flash:
Enable "connect under reset" by default when invoking st-flash for the STM32F4xx family, as recommended by st-flash itself, to improve flashing reliability.