/* Interrupt routine for DAC example */
static void App_Interrupt_Test(void)
{
uint32_t tmp = 0;
volatile uint32_t i = 0;
NVIC_DisableIRQ(DAC_IRQn);
NVIC_SetPriority(DAC_IRQn, ((0x01 << 2) | 0x01));
Interrupt_Continue_Flag = 1;
DAC_Interrupt_Done_Flag = 1;
while (Interrupt_Continue_Flag) {
tmp++;
if (tmp == (DATA_SIZE - 1)) {
tmp = 0;
}
Chip_DAC_UpdateValue(LPC_DAC, tmp);
if (DAC_Interrupt_Done_Flag) {
DAC_Interrupt_Done_Flag = 0;
NVIC_EnableIRQ(DAC_IRQn);
}
for (i = 0; i < 0x10000; i++) ;
}
/* Disable DAC interrupt */
NVIC_DisableIRQ(DAC_IRQn);
}
/*
* @brief Write a value in the DAC.
* @param analogOutput: AO0 ... AOn
* @param value: analog value to be writen in the DAC, from 0 to 1023
* @return none
*/
void analogWrite( uint8_t analogOutput, uint16_t value ){
if( value > 1023 ){
value = 1023;
}
Chip_DAC_UpdateValue( LPC_DAC, value );
}
void RIT_IRQHandler(void){
/* Clearn interrupt */
Chip_RIT_ClearInt(LPC_RITIMER);
t++;
t%=T;
DatoDAC=(t*Vmax)/T;
/* Saco dato por DAC */
Chip_DAC_UpdateValue(LPC_DAC,DatoDAC);
if (t==0) {
InvierteLed(1);
}
}
/* Polling routine for DAC example */
static void App_Polling_Test(void)
{
uint32_t tmp = 0;
volatile uint32_t i = 0;
while (DEBUGIN() != 'x') {
tmp++;
if (tmp == (DATA_SIZE - 1)) {
tmp = 0;
}
Chip_DAC_UpdateValue(LPC_DAC, tmp);
while (!(Chip_DAC_GetIntStatus(LPC_DAC))) {}
for (i = 0; i < 0x10000; i++) ;
}
}
void InicializarDAC(void){
Chip_SCU_DAC_Analog_Config();
Chip_DAC_Init(LPC_DAC);
Chip_DAC_UpdateValue(LPC_DAC, 0);
Chip_DAC_ConfigDAConverterControl (LPC_DAC, DAC_DMA_ENA);
}
void setDAC(uint16_t valor_adc){
Chip_DAC_UpdateValue(LPC_DAC, valor_adc); //hace cast de int16 a int32
}
void ActualizarValorDAC(uint16_t ValorDAC)
{
Chip_DAC_UpdateValue(LPC_DAC, ValorDAC);
}
void escribir_DAC(int valor)
{
Chip_DAC_UpdateValue(LPC_DAC, valor);
}
/*
* @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 setDacValue (uint16_t dacValue)
{
Chip_DAC_UpdateValue (LPC_DAC, dacValue);
while (!(Chip_DAC_GetIntStatus (LPC_DAC))); /* 0 <=> 0V & 1024 <=> 3.3V */
}
void Board_DAC_writeValue(uint32_t value)
{
Chip_DAC_UpdateValue(LPC_DAC,value);
}
uint32_t updateDACbuffer(uint32_t buffer){
Chip_DAC_UpdateValue(LPC_DAC, buffer);
return buffer;
}
void DAC_Value(int count) {
Chip_DAC_UpdateValue(LPC_DAC,count);
while (!(Chip_DAC_GetIntStatus(LPC_DAC))) {};
}
void ConfigurarSalidaDAC(int valor){
Chip_DAC_UpdateValue(LPC_DAC,valor);
};
void dacUpdate(uint32_t value){
Chip_DAC_UpdateValue(LPC_DAC,value);
}