#include <msp430g2553.h> #include "stdio.h" typedef unsigned char I8U; typedef unsigned int INT16U; #define A_L_D_PORT (P2DIR) #define ADC_CTRL_OUT_PORT (P2OUT) #define ADC_DATA_DIR_PORT (P1DIR) #define ADC_DATA_IN_PORT (P1IN)
#define ADC_OE_BIT (BIT0) #define ADC_CLK_BIT (BIT1)
#define ADC_OE_H (ADC_CTRL_OUT_PORT |= ADC_OE_BIT) #define ADC_OE_L (ADC_CTRL_OUT_PORT &= ~ADC_OE_BIT)
#define ADC_CLK_H (ADC_CTRL_OUT_PORT |= ADC_CLK_BIT) #define ADC_CLK_L (ADC_CTRL_OUT_PORT &=~ ADC_CLK_BIT)
INT16U RcvDataBuff_G[50]; void ADC_RcvData(INT16U *pData,INT16U RcvDataNum); INT16U ADC_RcvOneData(void); void ClockInit(void); void ADC_PortInit(void); unsigned char UartInit(unsigned long baud,unsigned char parity,unsigned char dataBits,unsigned char stopBits); void UART_PutChar( int c); void UART_PutString( int *s); unsigned char UART_GetChar();
void main(void) { WDTCTL = WDTPW + WDTHOLD; unsigned char i; INT16U ADC_Temp;
ADC_PortInit(); ClockInit(); UartInit(9600,'n',8,1); _EINT();
while(1) { ADC_RcvData(RcvDataBuff_G,50); for(i = 0;i < 50;i++) printf("ADC_Ruselt = %d \n",RcvDataBuff_G[i]); // ADC_Temp = (INT16U)ADC_RcvOneData(); //printf("ADC_Ruselt = %d \n",ADC_Temp); __delay_cycles(100000); } }
void ADC_PortInit(void) { ADC_CTRL_DIR_PORT |= ADC_OE_BIT + ADC_CLK_BIT; ADC_DATA_DIR_PORT = 0x00;//数据输入端口 } void ClockInit(void) { if(CALDCO_1MHZ == 0xff || CALBC1_1MHZ == 0xff) { while(1); } DCOCTL = CALDCO_1MHZ; BCSC = CALBC1_1MHZ; }
INT16U ADC_RcvOneData(void) { INT16U ADCResult,i; ADC_CLK_L; ADC_OE_H; for(i = 0;i < 3;i++) { ADC_CLK_L; _NOP(); ADC_CLK_H; } ADC_OE_L; ADCResult = ADC_DATA_IN_PORT; return (ADCResult); } void ADC_RcvData(INT16U *pData,INT16U RcvDataNum) { INT16U i; for(i = 0;i < RcvDataNum;i++) { pData[i] = (INT16U)ADC_RcvOneData(); } }
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