void DisplayTwoDigits (HDC hdc, int iNumber, BOOL fSuppress)
{
if (!fSuppress || (iNumber / 10 != 0))
DisplayDigit (hdc, iNumber / 10) ;
OffsetWindowOrgEx (hdc, -42, 0, NULL) ;
DisplayDigit (hdc, iNumber % 10) ;
OffsetWindowOrgEx (hdc, -42, 0, NULL) ;
}
void TIM4_IRQHandler(void)
{
OS_CPU_SR cpu_sr = 0;
OS_ENTER_CRITICAL(); /* Tell uC/OS-II that we are starting an ISR */
OSIntNesting++;
OS_EXIT_CRITICAL();
//Szemafort le kéne foglalni a displayValue -hoz OSSemAccept, OSSemPost
if ( TIM_GetITStatus( TIM4, TIM_IT_Update ) )
{
TIM_ClearITPendingBit( TIM4, TIM_IT_Update );
switch (digit)
{
case 0:
displayValue = *pDisplayVal;
digitValue = displayValue / 1000;
break;
case 1:
digitValue = (displayValue % 1000) / 100;
break;
case 2:
digitValue = (displayValue % 100) / 10;
break;
case 3:
digitValue = displayValue % 10;
break;
}
DisplayDigit( digit, digitValue, 0);
digit = (digit==3) ? 0 : digit+1;
}
OSIntExit(); /* Tell uC/OS-II that we are leaving the ISR */
}
void Display3Segs::Update(void)
{
// calcula os 3 digitos (unidade, dezena e centana)
int digit[3];
digit[0] = value / 100;
digit[1] = (value - digit[0] * 100) / 10;
digit[2] = (value - digit[0] * 100 - digit[1] * 10);
// varre os 3 digitos do display
for (int d=0; d<3; d++) {
// Liga o display 'd',
// ao mesmo tempo em que desliga os outros 2
for (int i=0; i<3; i++) {
digitalWrite(sel[i], d == i);
}
// exibe o caracter correspondente ao display 'd'
// (unidade, dezena ou centena)
DisplayDigit(digit[d]);
delay(10);
}
}
//
// Takes a digit and a number, and displays the number at the
// specified digit on the 7-segment display
//
void DisplayTime(int digit, int number)
{
DisplayDigit(digit);
DisplayNumber(number);
}
