/*
* @brief: enable/disable the ADC and DAC peripheral
* @param: ENEABLE_AI, DISABLE_AI, ENEABLE_AO, DISABLE_AO
* @return: none
*/
void analogConfig( uint8_t config ){
switch(config){
case ENABLE_ANALOG_INPUTS: {
/* Config ADC0 sample mode */
/*
ADC_CLOCK_SETUP_T ADCSetup = {
400000, // ADC rate
10, // ADC bit accuracy
0 // ADC Burt Mode (true or false)
};
*/
ADC_CLOCK_SETUP_T ADCSetup;
/* Initialized to default values:
* - Sample rate:ADC_MAX_SAMPLE_RATE=400KHz
* - resolution: ADC_10BITS
* - burst mode: DISABLE */
Chip_ADC_Init( LPC_ADC0, &ADCSetup );
/* Disable burst mode */
Chip_ADC_SetBurstCmd( LPC_ADC0, DISABLE );
/* Set sample rate to 200KHz */
Chip_ADC_SetSampleRate( LPC_ADC0, &ADCSetup, ADC_MAX_SAMPLE_RATE/2 );
/* Disable all channels */
Chip_ADC_EnableChannel( LPC_ADC0,ADC_CH1, DISABLE );
Chip_ADC_Int_SetChannelCmd( LPC_ADC0, ADC_CH1, DISABLE );
Chip_ADC_EnableChannel( LPC_ADC0, ADC_CH2, DISABLE );
Chip_ADC_Int_SetChannelCmd( LPC_ADC0, ADC_CH2, DISABLE );
Chip_ADC_EnableChannel( LPC_ADC0, ADC_CH3, DISABLE );
Chip_ADC_Int_SetChannelCmd( LPC_ADC0, ADC_CH3, DISABLE );
Chip_ADC_EnableChannel( LPC_ADC0, ADC_CH4, DISABLE );
Chip_ADC_Int_SetChannelCmd( LPC_ADC0, ADC_CH4, DISABLE );
}
break;
case DISABLE_ANALOG_INPUTS:
/* Disable ADC peripheral */
Chip_ADC_DeInit( LPC_ADC0 );
break;
case ENABLE_ANALOG_OUTPUTS:
/* Initialize the DAC peripheral */
Chip_DAC_Init(LPC_DAC);
/* Enables the DMA operation and controls DMA timer */
Chip_DAC_ConfigDAConverterControl(LPC_DAC, DAC_DMA_ENA);
/* DCAR DMA access */
/* Update value to DAC buffer*/
Chip_DAC_UpdateValue(LPC_DAC, 0);
break;
case DISABLE_ANALOG_OUTPUTS:
/* Disable DAC peripheral */
Chip_DAC_DeInit( LPC_DAC );
break;
}
}
void deinitDAC(){
Chip_DAC_DeInit(LPC_DAC);
}