app_adc.c
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#include "os_config.h"
#include "c_def.h"
#include "debug.h"
#include "oem.h"
#include "regmap.h"
#include "mem_reloc.h"
#include "hw_adc.h"
#include "interrupt.h"
#include "app_adc.h"
void app_adc_read(U16 * buf) __INTERNAL_RAM_TEXT;
void app_adc_isrHandler(void) __INTERNAL_RAM_TEXT;
#define AD_SEL_MASK 0x3C000
#define GET_SOURCE_SELECT() (REG_MISC_ADC_CTL >> 14)
U16 ad_data[AD_MAX];
void app_adc_init(void)
{
U8 i;
hw_adc_init();
for (i=0; i<AD_MAX; i++)
{
ad_data[i] = ADC_VALUE_MAX;
}
#ifdef ADC_INT_ENABLE
XT_INTS_ON(LEVEL1_INT5_MASK);
#endif
}
//#pragma interrupt app_adc_IsrHandler;
void app_adc_isrHandler(void)
{
}
#if 1
void app_adc_read(U16 * buf)
{
#ifdef ADC_INT_ENABLE
buf[0] = ad_data[0];
buf[1] = ad_data[1];
buf[2] = ad_data[2];
buf[3] = ad_data[3];
#else
//while( !(REG_MISC_ADC_CTL & 0x08) );
#if (AD_USED_NUMMBER == 1)
REG_MISC_ADC_CTL = (REG_MISC_ADC_CTL & ~AD_SEL_MASK | AD0_SEL_MASK);
ad_data[0] = REG_MISC_ADC_DATA;
buf[0] = ad_data[0];
REG_MISC_ADC_CTL |= 0x04;
#elif (AD_USED_NUMMBER == 2)
U32 next;
U32 select = REG_MISC_ADC_CTL & AD_SEL_MASK;
if (select == AD0_SEL_MASK)
{
ad_data[0] = REG_MISC_ADC_DATA;
next = AD1_SEL_MASK;
}
else if (select == AD1_SEL_MASK)
{
ad_data[1] = REG_MISC_ADC_DATA;
next = AD0_SEL_MASK;
}
buf[0] = ad_data[0];
buf[1] = ad_data[1];
REG_MISC_ADC_CTL = (REG_MISC_ADC_CTL & ~AD_SEL_MASK | next);
REG_MISC_ADC_CTL |= 0x04;
#elif (AD_USED_NUMMBER == 3)
U32 next;
U32 select = REG_MISC_ADC_CTL & AD_SEL_MASK;
if (select == AD0_SEL_MASK)
{
ad_data[0] = REG_MISC_ADC_DATA;
next = AD1_SEL_MASK;
}
else if (select == AD1_SEL_MASK)
{
ad_data[1] = REG_MISC_ADC_DATA;
next = AD2_SEL_MASK;
}
else if (select == AD2_SEL_MASK)
{
ad_data[2] = REG_MISC_ADC_DATA;
next = AD0_SEL_MASK;
}
buf[0] = ad_data[0];
buf[1] = ad_data[1];
buf[2] = ad_data[2];
REG_MISC_ADC_CTL = (REG_MISC_ADC_CTL & ~AD_SEL_MASK | next);
REG_MISC_ADC_CTL |= 0x04;
#elif (AD_USED_NUMMBER == 4)
U32 next;
U32 select = REG_MISC_ADC_CTL & AD_SEL_MASK;
if (select == AD0_SEL_MASK)
{
ad_data[0] = REG_MISC_ADC_DATA;
next = AD1_SEL_MASK;
}
else if (select == AD1_SEL_MASK)
{
ad_data[1] = REG_MISC_ADC_DATA;
next = AD2_SEL_MASK;
}
else if (select == AD2_SEL_MASK)
{
ad_data[2] = REG_MISC_ADC_DATA;
next = AD3_SEL_MASK;
}
else if (select == AD3_SEL_MASK)
{
ad_data[3] = REG_MISC_ADC_DATA;
next = AD0_SEL_MASK;
}
buf[0] = ad_data[0];
buf[1] = ad_data[1];
buf[2] = ad_data[2];
buf[3] = ad_data[3];
REG_MISC_ADC_CTL = ( REG_MISC_ADC_CTL & ~AD_SEL_MASK | next );
REG_MISC_ADC_CTL |= 0x04;
#else
#error AD_USED_NUMMBER Must Be defined!
#endif
#endif //ADC_INT_ENABLE
}
U16 app_adc_read_version(void)
{
#if 0
U16 ad_value;
#if defined AD1_USED_FOR_VERSION_DETECT
//use AD1
REG_MISC_ADC_CTL = (REG_MISC_ADC_CTL & ~AD_SEL_MASK | AD1_SEL_MASK);
#elif defined AD2_USED_FOR_VERSION_DETECT
//use AD2
REG_MISC_ADC_CTL = (REG_MISC_ADC_CTL & ~AD_SEL_MASK | AD2_SEL_MASK);
#elif defined AD3_USED_FOR_VERSION_DETECT
//use AD3
REG_MISC_ADC_CTL = (REG_MISC_ADC_CTL & ~AD_SEL_MASK | AD3_SEL_MASK);
#else
#error "The version AD must be defined"
#endif
REG_MISC_ADC_CTL |= 0x04;
//wait till ADC convertion end
delayms(1);
//delayms(2);
ad_value = REG_MISC_ADC_DATA;
return ad_value;
#endif
}
#else
#endif