Posted on December 23, 2007 at 12:10I'm trying to activate the ADC in STR750 without success.
I'm running in a loop waiting for a FLAG to be set for ever
Attach below my code
Can any one help?
ADC setup code:
void ADC_setCFG(USHORT ConversionMode, LONG FirstChannel, LONG ChannelNumber)
{ /* 1: ADC_setCFG() */
ADC_InitTypeDef ADC_InitStructure;
ADC_StructInit(&ADC_InitStructure);
/* ADC configuration */
ADC_InitStructure.ADC_ConversionMode = ConversionMode;
ADC_InitStructure.ADC_ExtTrigger = ADC_ExtTrigger_Disable;
ADC_InitStructure.ADC_AutoClockOff = ADC_AutoClockOff_Disable;
ADC_InitStructure.ADC_SamplingPrescaler = 32;
ADC_InitStructure.ADC_ConversionPrescaler = 32;
ADC_InitStructure.ADC_FirstChannel = FirstChannel;
ADC_InitStructure.ADC_ChannelNumber = ChannelNumber;
ADC_Init(&ADC_InitStructure);
} /* 1: ADC_setCFG() */
void ADC_InitHW(void)
{ /* 1: ADC_InitHW(void) */
EIC_IRQInitTypeDef EIC_IRQInitStructure;
FlagStatus CalibrationDone;
ADC_DeInit();
MRCC_PeripheralSWResetConfig(MRCC_Peripheral_ADC,ENABLE);
ADC_InitInputs();
/* by default set ADC configuration for SCAN mode, starting with inputs 0, and scan all 16
inputs (15 = 16 - 1 , see manual)
*/
ADC_setCFG(ADC_ConversionMode_Scan, ADC_CHANNEL0, 15);
/* Configure the IEC for the ADC interrupts. */
EIC_IRQInitStructure.EIC_IRQChannelCmd = ENABLE;
EIC_IRQInitStructure.EIC_IRQChannel = ADC_IRQChannel;
EIC_IRQInitStructure.EIC_IRQChannelPriority = 1;
EIC_IRQInit(&EIC_IRQInitStructure);
ADC_ITConfig(ADC_IT_ALL, ENABLE);
/* Enable ADC */
ADC_Cmd(ENABLE);
/* Start calibration */
ADC_StartCalibration(ADC_CalibAverage_Enable);
CalibrationDone = SET;
while (CalibrationDone != RESET)
{
CalibrationDone = ADC_GetCalibrationStatus();
}
} /* 1: ADC_InitHW(void) */
void ADC_Start(void)
{
ADC_ConversionCmd (ADC_Conversion_Start);
}
This is the activation code:
ADC_Start();
while (1)
{
adc_flag = ADC_GetFlagStatus(ADC_FLAG_EOC);
if (adc_flag == SET)
{
ADC_ClearFlag(ADC_FLAG_EOC);
for (i = 0; i < 16 ; i++)
{
adc_value = ADC_GetConversionValue(i);
}
}
}
