Currently, STM32CubeMX 6.8.0, including the one used in CubeIDE, generates an incorrect comparison when using the low layer library (LL) for reset and clock control (RCC) in a project. This happens when you change the peripheral module RCC from HAL to LL in Project Manager > Advanced Settings by clicking on the relevant line and then selecting LL.
void SystemClock_Config(void)
{
LL_FLASH_SetLatency(LL_FLASH_LATENCY_1);
while(LL_FLASH_GetLatency()!= LL_FLASH_LATENCY_1)
{
}
LL_PWR_SetRegulVoltageScaling(LL_PWR_REGU_VOLTAGE_SCALE***);
while (LL_PWR_IsActiveFlag_VOS() == 0) // <-- to be corrected
{
}
Explanation:
LL_PWR_SetRegulVoltageScaling() sets bits VOS in PWR_CR1,
LL_PWR_IsActiveFlag_VOS() checks the corresponding bit VOSF in PWR_SR2:
Typically, the return value 0 stands for OK or HAL_OK, so LL_PWR_IsActiveFlag_VOS() returns the correct value, but STM32CubeMX inserts the wrong comparison so that the while loop is never exited on OK.
Temporary fix until this is corrected: after each generation of the code by STM32CubeMX, the mentioned comparison in SystemClock_Config() has to be corrected manually from == 0 to !=0 (line 8 in the snippet mentioned above).
We are very sorry if this is causing you any inconvenience at the moment. We will fix the problem as soon as possible.
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