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Caution:
A deadlock occurs if the board SMPS/LDO firmware PWR configuration does not match its hardware
configuration: after the reset, the ST-LINK cannot connect the target anymore.
The firmware PWR configuration must be set as follows in function SystemClock_Config in file main.c:
•
If the hardware configuration is Direct SMPS (Default configuration):
HAL_PWREx_ConfigSupply(PWR_DIRECT_SMPS_SUPPLY);
•
If the hardware configuration is LDO:
HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);
UM2662 - Rev 1
Figure 13.
Config3 - SMPS and LDO cascaded
Figure 14.
Config4 - External SMPS
UM2662
Power supply
page 21/95
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