#include <stdint.h>
#include <stdbool.h>
#include "em_usart.h"
#include "em_device.h"
#include "em_chip.h"
#include "InitDevice.h"
#include "em_cmu.h"
#include "em_gpio.h"
#include "stdio.h"
#include "em_emu.h"
#include "em_adc.h"
#include "em_dac.h"
void sys_int(void)
{
CHIP_Init();
/* Infinite loop */
enter_DefaultMode_from_RESET();
//GPIO_PinOutClear(gpioPortA, 8);
/*串口进中断*/
USART0->IFC = _USART_IFC_MASK;
NVIC_ClearPendingIRQ(USART0_RX_IRQn);
NVIC_EnableIRQ(USART0_RX_IRQn);
USART0->IEN = USART_IEN_RXDATAV;
USART0->ROUTE |= USART_ROUTE_TXPEN | USART_ROUTE_RXPEN | USART_ROUTE_LOCATION_LOC0;
/*串口进中断结束*/
/* Enable DAC channel 0, located on pin PB11 */
DAC_Enable(DAC0, 0, true);
}
/**************************************************************************//**
* [url=u.php?uid=650075]@brief[/url] Write DAC conversion value
*****************************************************************************/
void DAC_WriteData(DAC_TypeDef *dac, unsigned int value, unsigned int ch)
{
/* Write data output value to the correct register. */
if (!ch)
{
dac->CH0DATA = value;
}
else
{
dac->CH1DATA = value;
}
}
uint32_t ADC0_get_result()
{
uint32_t samp;
ADC_Start(ADC0, adcStartSingle);
/* Wait while conversion is active */
while (ADC0->STATUS & ADC_STATUS_SINGLEACT) ;
/* Get ADC result */
samp = ADC_DataSingleGet(ADC0);
return samp;
}
uint32_t ADC0_get_send_result()
{
uint32_t samp;
uint8_t cache1 = 0;
uint8_t cache = 0;
uint32_t cache2 = 0;
samp = ADC0_get_result();
cache2 = samp;
cache1 = samp;
samp >>= 8;
cache = samp;
USART_Tx(USART0, cache);
USART_Tx(USART0, cache1);
return cache2;
}
void adc_change_input_ch(uint8_t ch)
{
ADC_InitSingle_TypeDef initsingle = ADC_INITSINGLE_DEFAULT;
switch(ch)
{
case 4:
initsingle.prsSel = adcPRSSELCh0;
initsingle.acqTime = adcAcqTime64;
initsingle.reference = adcRef1V25;
initsingle.resolution = adcRes12Bit;
initsingle.input = adcSingleInpCh4;
initsingle.diff = 0;
initsingle.prsEnable = 0;
initsingle.leftAdjust = 0;
initsingle.rep = 0;
ADC_InitSingle(ADC0, &initsingle);
break;
case 5:
initsingle.prsSel = adcPRSSELCh0;
initsingle.acqTime = adcAcqTime64;
initsingle.reference = adcRef1V25;
initsingle.resolution = adcRes12Bit;
initsingle.input = adcSingleInpCh5;
initsingle.diff = 0;
initsingle.prsEnable = 0;
initsingle.leftAdjust = 0;
initsingle.rep = 0;
ADC_InitSingle(ADC0, &initsingle);
break;
case 6:
initsingle.prsSel = adcPRSSELCh0;
initsingle.acqTime = adcAcqTime64;
initsingle.reference = adcRef1V25;
initsingle.resolution = adcRes12Bit;
initsingle.input = adcSingleInpCh6;
initsingle.diff = 0;
initsingle.prsEnable = 0;
initsingle.leftAdjust = 0;
initsingle.rep = 0;
ADC_InitSingle(ADC0, &initsingle);
break;
}
}
/**************************************************************************//**
* [url=u.php?uid=650075]@brief[/url] Main function
*****************************************************************************/
int main(void)
{
int i;
uint32_t sample;
uint8_t working_satae = 1;//0-普通5v //1-qc2.0插入前 //2-qc2.0前奏 //3-qc2.0-9v
uint32_t DAC_Value;
sys_int();
while (1)
{
switch(working_satae)
{
case 0:
{
for(i = 0; i < 20000; i++);
DAC_Enable(DAC0, 0, 0);
adc_change_input_ch(4);
ADC0_get_send_result();
adc_change_input_ch(6);
ADC0_get_send_result();
break;
}//case 0#p#分页标题#e#
case 1:
{
for(i = 0; i < 20000; i++);
DAC_Value = 0x2e8;
DAC_WriteData(DAC0, DAC_Value, 0);
adc_change_input_ch(4);
ADC0_get_send_result();
adc_change_input_ch(6);
ADC0_get_send_result();
adc_change_input_ch(5);
sample = ADC0_get_result();
if(sample > 0x600 )
{
for(i = 0; i < 200; i++);
adc_change_input_ch(5);
sample = ADC0_get_result();
if(sample > 0x600 )
{
working_satae = 2;
}
}
break;
}
case 2:
{
DAC_Enable(DAC0, 0, 1);
for(i = 0; i < 20000; i++);
DAC_Value = 0x2e8;
DAC_WriteData(DAC0, DAC_Value, 0);
adc_change_input_ch(4);
ADC0_get_send_result();
adc_change_input_ch(6);
ADC0_get_send_result();
adc_change_input_ch(5);
sample = ADC0_get_result();
if(sample < 0xd0 )
{
for(i = 0; i < 20000; i++);
adc_change_input_ch(5);
sample = ADC0_get_result();
if(sample < 0xd0 )
{
GPIO_PinOutSet(gpioPortA, 8);
GPIO_PinModeSet(gpioPortE, 13, gpioModePushPullDrive, 1);
GPIO_PinOutSet(gpioPortE, 13);
DAC_Value = 0xfff;
DAC_WriteData(DAC0, DAC_Value, 0);
GPIO_PinOutClear(gpioPortA, 9);
working_satae = 3;
}
else
{
GPIO_PinOutClear(gpioPortA, 8);
GPIO_PinOutSet(gpioPortA, 9);
GPIO_PinOutClear(gpioPortE, 13);
GPIO_PinModeSet(gpioPortE, 13, gpioModeInput, 0);
}
}
break;
}//case 1
case 3:
{
DAC_Enable(DAC0, 0, 1);
for(i = 0; i < 20000; i++);
adc_change_input_ch(4);
ADC0_get_send_result();
adc_change_input_ch(6);
ADC0_get_send_result();
adc_change_input_ch(5);
sample = ADC0_get_result();
if(sample > 0x7a0)
{
for(i = 0; i < 20000; i++);
//adc_change_input_ch(5);
sample = ADC0_get_result();
if(sample > 0x780)
{
working_satae = 1;
GPIO_PinOutClear(gpioPortA, 8);
GPIO_PinOutSet(gpioPortA, 9);
GPIO_PinOutClear(gpioPortE, 13);
GPIO_PinModeSet(gpioPortE, 13, gpioModeInput, 0);
}
}
break;
}//case 2
}
}
}
联系客服
