LPUART acts strange with StopMode - STM32L081KZT6 Hello,I am using a STM32L081KZT6. My code sends a Message via LPUART every second and receives an input over the same LPUART from the user. The RTC is used for the timing with LSE. To save power, I go into sleep mode between sending and receiving. The sleep function is called like this:void schlafen_wenn_nichts_zu_tun(void)
{
if (!TESTBIT(1, m1_rs232_aktiv)) {
HAL_SuspendTick();
HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
}
}The sending is done with Interupt and works fine:void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
{
if (huart == &hlpuart1)
{
idlemode_tx = IDLE_NACHLAUF_TX;
if(TESTBIT(1, m1_rs232_aktiv))
{
if (rs232_outbuf_index < rs232_outbuf[0])
{
rs232_outbuf_index++;
HAL_UART_Transmit_IT(&hlpuart1,&rs232_outbuf[rs232_outbuf_index], 1);
}
else
{
HAL_UART_AbortTransmit_IT(&hlpuart1);
CLRBIT(1, m1_rs232_aktiv);
memset(&rs232_outbuf, 0, sizeof(rs232_outbuf));
}
}
}
}
