Posted on February 20, 2012 at 17:45
Thanks for your response.
Now, I do the three conversions ! It is great
🙂 I will set the sample time depending on the sensors (anemometer, clinometer...)
But I still have a problem. A flashing led at every interrupt (of DMA2_stream0) and I test the new example :
int main(void)
{
uint16_t i;
// Initialisation Hardware
HwInit();
for (i=0;i<9;i++)
{
ADCTripleConvertedValue[i]=i;
}
/* Infinite loop */
while (1)
{
/* Analog to digital converter */
DelayMS(100);
ADC_SoftwareStartConv(ADC1); // Start ADC
}
}
/**
* @brief This function handles DMAx global interrupt request.
* @param None
* @retval None
*/
/* Private define ------------------------------------------------------------*/
#define DMA2_IRQHANDLER DMA2_Stream0_IRQHandler
uint16_t AN0, AN1, AN2, AN3, AN4, AN5, AN6, AN7, AN8;
void DMA2_IRQHANDLER(void)
{
if(DMA_GetITStatus(DMA2_Stream0, DMA_IT_TCIF0) != RESET)
{
DMA_ClearITPendingBit(DMA2_Stream0, DMA_IT_TCIF0); // Reset du Flag
GPIO_ToggleBits(GPIOD, GPIO_Pin_12);
AN0 = DMA_GetADC(0) & 0x0FFF;
AN1 = DMA_GetADC(1) & 0x0FFF;
AN2 = DMA_GetADC(2) & 0x0FFF;
AN3 = DMA_GetADC(3) & 0x0FFF;
AN4 = DMA_GetADC(4) & 0x0FFF;
AN5 = DMA_GetADC(5) & 0x0FFF;
AN6 = DMA_GetADC(6) & 0x0FFF;
AN7 = DMA_GetADC(7) & 0x0FFF;
AN8 = DMA_GetADC(8) & 0x0FFF;
}
else
{
USART_SendString(USART3,''error
'');
}
}
Normaly the frequence of flashing led must be 5 Hz (1/2*100ms) but the led :
turn on : 100 ms
turn off : 100 ms
tunr on : 200 ms
turn off : 100 ms
...
I don't see where does the error.
Thank again,
Ronan.
