msp430单片机ad采样1khz信号，如何用12864显示信号...

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msp430单片机ad采样1khz信号，如何用12864显示信号... [复制链接]

采样得到的结果是存在什么地方的？
adcmen0貌似只能存一个数据，多个数据存储怎么实现？
求大神来个程序啊！

 

在ad中断中读取 adcmen0 并存到数组或者flash中
一个例子
//*****************************************************************************
// MSP-FET430F261x Demo - ADC12, Single Channel Extended Sample, TA1 Trigger
//
// Description: Sample and convert A0 using Timer_A as sample trigger in
// Extended Sample mode. Put "Num_of_Results" ADC12MEM0 values in results[]
// and Light LED (P1.0) when done.
//
// MSP430F2618
// ---------------
// | |
// Vin -->|P6.0/A0 |
// | |
//
// R. B. Elliott / H. Grewal
// Texas Instruments Inc.
// Feb 2005
// Built with IAR Embedded Workbench Version: 3.21A
//*****************************************************************************
#include <msp430x26x.h>
#define Num_of_Results 512
int results[Num_of_Results] = {0};
void ADC_Init(void);
void main(void)
{
WDTCTL = WDTPW | WDTHOLD; //看门狗 失效
ADC_Init(); //初始ADC12
ADC12CTL0 |= ENC; // 开始转换
__bis_SR_register(LPM0_bits + GIE); // 进入LPM0
}
void ADC_Init(void)
{
P1DIR = 0xff; // set port to outputs 用来观察 无用
P1OUT = 0; // reset port outputs 无用
P6SEL |= 0x01; // select A0 input 设置采集的口
ADC12CTL0 = ADC12ON+REF2_5V+REFON; // Setup ADC12 各种设置
ADC12CTL1 = CONSEQ_2+SHS_1; // Timer triggers sampling 各种设置
ADC12MCTL0 = INCH_0 + SREF_1;
ADC12IE = 0x0001; // Enable ADC12IFG.0 中断使能
TACCR0 = 1500; // Delay to allow Ref to settle
TACCTL0 |= CCIE; // Compare-mode interrupt.
TACTL = TASSEL_1 | MC_1; // TACLK = ACLK, Up mode.
__bis_SR_register(LPM3_bits + GIE); // Wait for delay, Enable interrupts
TACCTL0 &= ~CCIE; // Disable timer
P2SEL |= BIT3; // Set for Timer A1
P2DIR |= 0x08;
TACCR0 = 7; // Init TACCR0 w/ sample prd=CCR0+1 设置ta 定时触发
TACCR1 = 4; // Trig for ADC12 sample & convert
TACCTL1 = OUTMOD_3; // Set/reset
TACTL = TACLR | MC_1 | TASSEL_1; // ACLK, clear TAR, up mode
}
// Timer_A0 Interrupt Service Routine
#pragma vector=TIMERA0_VECTOR
__interrupt void ta0_isr(void)
{
TACTL = 0;
__bic_SR_register_on_exit(LPM3_bits);
}
// ADC12 Interrupt Service Routine
#pragma vector=ADC12_VECTOR
__interrupt void ADC12ISR (void)
{
static unsigned int index = 0; //一个不断进入中断 但是值保持的变量 重要
results[index++] = ADC12MEM0; // Move results 将的得道 的结果存到数组
if (index == 512)
{
ADC12CTL0 &= ~ENC; // Stop conversion 关ad
ADC12CTL0 = 0;
ADC12IE = 0;
index = 0;
P1OUT |= 0x01;
}
}