main.c

基于MDK的LPC1100处理器开发应用例程

#include "mrfi.h"
#include "APP.h"

#include "LPC11xx.h"
#include "lpc11xx_gpio.h"
#include "lpc11xx_ssp.h"


#define SSP_BUFSIZE		16
#define FIFOSIZE		8

#define COUNTTIME 40

uint8_t  u8GDO0Flag;

uint32_t u32ADCAverageValue = 0;
uint32_t u32ADCTotalValue = 0;
uint32_t u32ADCAveValOld = 0;

int iFameNum =0;

uint8_t txBuffer[10];
uint8_t rxBuffer[10];

#define SPIN_ABOUT_A_SECOND  NWK_DELAY(1000) // NWK_DELAY(2000)//NWK_DELAY(1000)

int main(void)
{
	int i=0, adc_value,adc_valueold=0;
	uint8_t len = 10;
	int16_t iTemp=0;
	
	SystemInit();

	/* Configuration for ADC :
	 * 	Frequency at 1Mhz
	 *  ADC channel 5, no Interrupt */
	ADC_Init(1000000);
  ADC_PinsInit(ADC_CHANNEL_5);
	ADC_ChannelCmd(ADC_CHANNEL_5,ENABLE);

	//init the led port
	LPC_GPIO2->DIR |= (0x1<<7)|(0x1<<8)|(0x1<<9);//2.2 2.1

	//init cc2500
	MRFI_Init();

	LPC_GPIO2->DATA &= ~(0x1<<7);
	LPC_GPIO2->DATA &= ~(0x1<<8);//led, used for test init is passed or not

	NWK_DELAY(1000);
				
	u32ADCAveValOld = 0;
	while(1)
	{
		iTemp = RFReceivePacket(rxBuffer, &len);
		if(iTemp)//get control infor
		{
			NWK_DELAY(1000);
		}

		if(rxBuffer[1] == 0)
		{
			LPC_GPIO2->DATA |=  (0x1<<9)|(0x1<<8); //no pass, 2.8 is a led, 2.9 control the turn on  or off.
		}
		else
		{
			LPC_GPIO2->DATA &= ~((0x1<<9)|(0x1<<8)); // pass
		}

		if( i < COUNTTIME/2 ) //LED7 represent the link time
		{
			LPC_GPIO2->DATA &= ~(0x1<<7);
			NWK_DELAY(100);
		}
		else if( (i>=COUNTTIME/2) && (i<COUNTTIME))
		{
			LPC_GPIO2->DATA |= (0x1<<7);
			NWK_DELAY(100);
		}
		else
		{
			//check 40 times send once
			u32ADCAverageValue = u32ADCTotalValue/COUNTTIME;

			if(u32ADCAverageValue > 6)
			{
				u32ADCAverageValue -= 6;
			}
			else
			{
				u32ADCAverageValue = 0;
			}

			iTemp = u32ADCAverageValue - u32ADCAveValOld;
			
			//record the data 
			txBuffer[3] = u32ADCAverageValue/100;/*display the  hundred  position */
			txBuffer[4] = u32ADCAverageValue % 100;
			
			//send the electric current related infomation to E-Monitor.	
			SendCurInfo();
			u32ADCAveValOld = u32ADCAverageValue;

			//pepare for the next count
			u32ADCTotalValue = 0;
			i=0;
		}

		/* Start conversion */
		ADC_StartCmd(ADC_START_NOW);
		/* Wait conversion complete */
		while (!(ADC_ChannelGetStatus(ADC_CHANNEL_5,ADC_DATA_DONE)));
		adc_value = ADC_ChannelGetData(ADC_CHANNEL_5);

		//here handle a siuation: when during the COUNTTIME, the current increased to much, so we think it have some true change, and will count again.
		iTemp = adc_valueold-adc_value;	
		if( (iTemp >= 20) || (iTemp <= -20) )
		{
			u32ADCTotalValue = 0;
			i=0;
		}
		adc_valueold = adc_value;

		u32ADCTotalValue += adc_value;
		i++;

		NWK_DELAY(1000);
	}
}