void
initHardware(void)
{
/* disable watchdog */
MCUSR &= ~(1 << WDRF);
wdt_disable();
/* clock full speed */
clock_prescale_set(clock_div_1);
/* Hardware Initialization */
vrefInit();
srInit();
srClear();
srEnable();
USB_Init();
}
void Serial::interruptCallback(InterruptController::Index /*index*/)
{
__SR sr;
sr.value = srValue();
bool any = false;
if (sr.bits.ORE)
{
error(System::Event::Result::OverrunError);
// we have to read the data even though the STM tells us that there is nothing to read (RXNE = 0)
(void)read();
any = true;
}
if (sr.bits.FE)
{
error(System::Event::Result::FramingError);
// we have to read the data even though the STM tells us that there is nothing to read (RXNE = 0)
(void)read();
any = true;
}
if (sr.bits.PE)
{
error(System::Event::Result::ParityError);
// we have to wait for the RXNE flag
any = true;
}
if (sr.bits.LBD)
{
error(System::Event::Result::LineBreak);
// we have to manually clear the bit
__SR clear;
clear.bits.LBD = 1;
srClear(clear.value);
any = true;
}
if (sr.bits.NF)
{
error(System::Event::Result::NoiseDetected);
// we have to read the data even though the STM tells us that there is nothing to read (RXNE = 0)
(void)read();
any = true;
}
if (sr.bits.RXNE && mBase->CR1.RXNEIE)
{
interrupt(Interrupt::DataRead);
any = true;
}
if (sr.bits.TXE && mBase->CR1.TXEIE)
{
interrupt(Interrupt::TransmitDataEmpty);
any = true;
}
if (sr.bits.TC && mBase->CR1.TCIE)
{
interrupt(Interrupt::TransmitComplete);
any = true;
}
if (sr.bits.IDLE && mBase->CR1.IDLEIE)
{
// we have to read the data to clear the idle bit
(void)read();
interrupt(Interrupt::Idle);
any = true;
}
if (!any) interrupt(Interrupt::DataReadByDma);
#ifdef STM32F7
srClear(sr.value);
#endif
}
