STM32做的64通道數據采集程序

ID:683662 · 發表于 2020-7-5 19:19

STM32做的64通道數據采集電路采樣頻率30hz 效果非常

單片機源程序如下:

//4.4 Repeat-sequence mode
//Sequence模式時可以設置多個采樣通道。在最后一個通道加上EOS就表明的采樣通道結束位置。中斷允許只需要設置最后一個通道。
//為了采樣速率盡可能快，可設置MSC,此時當SHI上升沿觸發第一次采樣后，后面的采樣在上一次采樣結束后自動進行。
#include <msp430x14x.h>
#include "Config.h" //開發板配置頭文件，主要配置IO端口信息
//表區
#define ADCOK 0x01 //B0為ADC12完成轉換標志.
unsigned char number_table[]={'0','1','2','3','4','5','6','7','8','9','.'};
//unsigned char display_buffer[]={0x00,0x00,0x00,0x00,'\0'};
unsigned char display_buffer[]={0x00,0x00,'\0'};
unsigned char display_buffer2[]={0x00,'\0'};
//*******************波特率***********300 600 1200 2400 4800 9600 19200 38400 76800 115200const
//************************************[0]**[1]**[2]*[3]**[4]**[5]***[6]***[7]****[8]***[9]*
unsigned char BaudrateUBR0[] ={0x6D,0x36,0x1B,0x0D,0x06,0x03, 0xA0, 0xD0, 0x68, 0x45};
unsigned const char BaudrateUBR1[] ={0x00,0x00,0x00,0x00,0x00,0x00, 0x01, 0x00, 0x00, 0x00};
unsigned const char BaudrateUMCTL[]={0x22,0xD5,0x03,0x6B,0x6F,0x4A, 0xC0, 0x40, 0x40, 0x4A};
unsigned int head[] ={0xAA,0x00};
unsigned int tail[] ={0x55,0x00};
unsigned char timp; //全局位變量區
unsigned char gbit; //B0為ADC12完成轉換標志.
unsigned int ADC[8] ; //ADC12讀出數據數組
unsigned char contralAD;
//子程序聲明
void init (void); //初始化
void ADC12setup(void); //ADC12初始化
void BaudrateSetup(unsigned char U0); //UART0初始化
void timer_A_setup(void); //timer_A初始化
void data_converter(unsigned char *p,unsigned int vaule); //數據變換
void data_converter1(unsigned char *p,unsigned int vaule);//數據變換1
void send_data(unsigned char *p); //串行口發送數組
void send_adc12_data(unsigned int *p,unsigned int adcn); //發送ADC12數據
void send_adc12_xieyi(unsigned int *p,unsigned int adcn); //發送ADC12協議
void Adc12Open(unsigned char doit);
//*************************************************************************
// 串口0發送數據函數
//*************************************************************************
/*
void Send_Byte(uchar data)
{
while(!(IFG1&UTXIFG0)); //發送寄存器空的時候發送數據
U0TXBUF=data;
}
//*************************************************************************
// 串口0發送字符串函數
//*************************************************************************
void Print_Str(uchar *s)
{
while(*s != '\0')
{
Send_Byte(*s++);
}
}
*/
//******************************************************************************
//發送ADC12數據
//*p為數據區,adcn為數量
/*
void send_adc12_data(unsigned int *p)
{
unsigned char result[18];
result[0]=0xAA;
result[1] = (unsigned char)(p[0] >> 8); //采樣結果,對應板上VR電位器.
result[2] = (unsigned char)p[0]; //對應預留儀表放器電路,此路默認為空.
result[3] = (unsigned char)(p[1]>> 8);
result[4] = (unsigned char)p[1];
result[5] = (unsigned char)(p[2] >> 8);
result[6]= (unsigned char)p[2];
result[7] = (unsigned char)(p[3] >> 8);
result[8] = (unsigned char)p[3];
result[9] = (unsigned char)(p[4] >> 8);
result[10] = (unsigned char)p[4];
result[11] = (unsigned char)(p[5] >> 8);
result[12] = (unsigned char)p[5];
result[13] = (unsigned char)(p[6] >> 8);
result[14] = (unsigned char)p[6];
result[15] = (unsigned char)(p[7] >> 8);
result[16] = (unsigned char)p[7];
result[17] = 0x55;
Print_Str(result); //發送數據
}
*/
//******************************************************************************
//******************************************************************************
//串口接收中斷
//usart0 interrupt receive function
#pragma vector=UART1RX_VECTOR
__interrupt void usart1_rx (void)
{
while(RXBUF1 != 0)
{
while(1);
}
;
if(RXBUF1==0x43)//0x43開始，0x44停止采集
{
LPM0_EXIT;
ADC12setup();
//send_adc12_data(ADC,8);
while((gbit&ADCOK)==0); //等待序列單次完成
gbit &= ~ADCOK; //清轉換完成標志
}
if( RXBUF1 == 0x44 ){ //收到1時，led燈亮,并發送 "led is off"
Adc12Open(100);
_BIS_SR(LPM0_bits + GIE); // Enter LPM0, Enable interrupts
}
}
//******************************************************************************
//timer_A設置
/*
void timer_A_setup(void)
{
TACTL = TASSEL_2+MC_2; //Timer A 時鐘源先為SMCLK,增加方式
// TACTL = TASSEL_1+MC_2; //Timer A 時鐘源先為ACLK,增加方式
TACCTL1 = OUTMOD_3; //CCR1輸出模式:PWM置位/復位
//TACCR1 = 0x0ffff; //CCR1比較值
TACCR1 = 0xfffff;
}
*/
//******************************************************************************
//UART0初始化 //8Mhz晶體程序不能用.
/*
void BaudrateSetup(unsigned char U0)
{
unsigned int i;
if(U0>5) //當U0>5時,啟用XT2
{
BCSCTL1 &= ~XT2OFF; //啟動XT2,
do
{IFG1 &= ~OFIFG; //清OSCFault標志
for(i=0xFF;i>0;i--); //延時等待
}
while((IFG1 & OFIFG) != 0); //查OSCFault,為0時轉換完成
BCSCTL2 |= SELS; //SMCLK為XT2
}
//UART0
P1OUT=0x00;
if(U0>5){UTCTL0=SSEL1;} // Clock Source:SMCLK
else{UTCTL0=SSEL0;} // Clock Source:ACLK
UCTL0 &= ~SWRST; // SWRST復位， USART允許
UCTL0=CHAR; // 8bit
ME1|=UTXE0 + URXE0; // Enable Tx0,Rx0
IE1|=URXIE0; // RX enable
UBR00=BaudrateUBR0[U0]; // 低位分頻器因子
UBR10=BaudrateUBR1[U0]; // 高位分頻器因子
UMCTL0=BaudrateUMCTL[U0]; // 波特率調整因子
P3SEL |= 0x30; // 將P3.4,5使用外圍模塊 = USART0 TXD/RXD
P3DIR |= 0x10; // 將P3.4設為輸出(發),P3.5默認為輸入(收)
}
*/
//*************************************************************************
// MSP430串口初始化
//*************************************************************************
void UART_Init()
{
U1CTL|=SWRST + CHAR; //復位SWRST，8位數據模式
U1TCTL|=SSEL1; //SMCLK為串口時鐘
U1BR1=baud_h; //BRCLK=8MHZ,Baud=BRCLK/N
U1BR0=baud_l; //N=UBR+(UxMCTL)/8
U1MCTL=0x00; //微調寄存器為0，波特率9600bps
ME1|=UTXE1; //UART0發送使能
ME1|=URXE1; //UART0接收使能
U1CTL&=~SWRST;
IE1|=URXIE1; //接收中斷使能位
P3SEL|= BIT4 + BIT5; //設置IO口為第二功能模式，啟用UART功能
P3DIR|= BIT4; //設置TXD0口方向為輸出
}
//*************************************************************************
// ADC Setup函數
//*************************************************************************
//4.4 Repeat-sequence mode
//Sequence模式時可以設置多個采樣通道。在最后一個通道加上EOS就表明的采樣通道結束位置。中斷允許只需要設置最后一個通道。
//為了采樣速率盡可能快，可設置MSC,此時當SHI上升沿觸發第一次采樣后，后面的采樣在上一次采樣結束后自動進行。
void ADC12setup(void)
{
P6SEL |= 0xff; //使用A/D通道 A0,A1,A2,...,A7
//ADC12CTL0 = ADC12ON+MSC+SHT0_8; // Turn on ADC12, extend sampling time
// to avoid overflow of results
ADC12CTL0 = ADC12ON+MSC+SHT0_0+SHT0_1+SHT0_8+SHT1_8+SHT1_5+SHT1_6+SHT1_7+SHT1_8;
//ADC12CTL1 = SHP+CONSEQ // Use sampling timer, repeated sequence
ADC12CTL1 = ADC12SSEL_0+SHP+CONSEQ_3+ADC12DIV_7 ; //SAMPCON信號選為采樣定時器輸出
// Use sampling timer, repeated sequence
ADC12MCTL0 = INCH_0; // ref+=AVcc, channel = A0
ADC12MCTL1 = INCH_1; // ref+=AVcc, channel = A1
ADC12MCTL2 = INCH_2; // ref+=AVcc, channel = A2
ADC12MCTL3 = INCH_3; // ref+=AVcc, channel = A3, end seq.
ADC12MCTL4 = INCH_4; // ref+=AVcc, channel = A0
ADC12MCTL5 = INCH_5; // ref+=AVcc, channel = A1
ADC12MCTL6 = INCH_6; // ref+=AVcc, channel = A2
ADC12MCTL7 = INCH_7+EOS; // ref+=AVcc, channel = A3, end seq.
ADC12IE = 0x08; // Enable ADC12IFG.3
ADC12CTL0 |= ENC; // Enable conversions
ADC12CTL0 |= ADC12SC; // Start conversion
_BIS_SR(LPM0_bits + GIE); // Enter LPM0, Enable interrupts
}
//****************************************************************************
//打開或關閉ADC12模塊
//doit： 0：打開 100：關閉
//****************************************************************************/
void Adc12Open(unsigned char doit)
{
if(doit==0)
{
ADC12CTL0 |= ADC12ON;
ADC12CTL0 |= ENC; //允許轉換
}
else if(doit==100)
{
ADC12CTL0 &= ~ADC12ON; //不允許轉換
ADC12CTL0 &= ~ENC;
}
}
//*************************************************************************
// ADC 中斷函數
//*************************************************************************
#pragma vector=ADC12_VECTOR
__interrupt void ADC12ISR (void)
{
static unsigned int index = 0;
ADC[0] = ADC12MEM0; // Move A0 results, IFG is cleared
ADC[1] = ADC12MEM1; // Move A1 results, IFG is cleared
ADC[2] = ADC12MEM2; // Move A2 results, IFG is cleared
ADC[3] = ADC12MEM3; // Move A3 results, IFG is cleared
ADC[4] = ADC12MEM4; // Move A0 results, IFG is cleared
ADC[5] = ADC12MEM5; // Move A1 results, IFG is cleared
ADC[6] = ADC12MEM6; // Move A2 results, IFG is cleared
ADC[7] = ADC12MEM7; // Move A3 results, IFG is cleared
gbit |= ADCOK; //置標志,表示ADC采樣完成.
send_adc12_xieyi(head,1);
send_adc12_data(ADC,8);
send_adc12_xieyi(tail,1);
//ADC12CTL0 = ~ENC;
//TXBUF0 = 0x55;
//index = (index+1)%Num_of_Results; // Increment results index, modulo; Set Breakpoint here
}
void main(void)
{
init();
// Mainloop
while(1)
{
//LPM0;
ADC12CTL0 |= ADC12SC; // Start conversion
_BIS_SR(LPM0_bits + GIE); // Enter LPM0, Enable interrupts
_NOP();
}
}
//******************************************************************************
//MCU初始化
void init(void)
{
WDTCTL = WDTPW + WDTHOLD; // 停止WDT
// timer_A_setup(); //timer_A初始化
//Clock_Init(); //系統時鐘設置
//P1DIR=0x01;P1OUT=0x0f; //LED設置
//BaudrateSetup(5); //設置波特率 9600
//Print_Str("DM430-L Board UART Test...\n"); //發送字符串測試
// 全局中斷使能
//ADC12setup();
//Clock_Init(); //系統時鐘設置
Clock_Init_Inc;
//LED8 =0xff; //關滅所有LED
UART_Init();
_EINT();
}
void data_converter(unsigned char *p,unsigned int value) //數據變換
{
//unsigned int m,n,j=0;
//p[0]=number_table[value/1000];
p[0]=(unsigned char)(value >> 8);
// m=value%1000;
//p[1]=number_table[m/100];
p[1]=(unsigned char)value ;
//n=m%100;
//p[2]=number_table[n/10];
//j=n%10;
//p[3]=number_table[j/1];
}
//******************************************************************************
void data_converter1(unsigned char *p,unsigned int value) //數據變換
{
p[0]=(unsigned char)value ;
}
//******************************************************************************
//串行口發送數組
void send_data(unsigned char *p)
{unsigned int n;
//timp=RXBUF0;
for(n=0;p[n]!='\0';n++)
{
while ((IFG1 & UTXIFG1) == 0); // USART0發送UTXIFG0=1,表示UTXBUF準備好發送一下字符
TXBUF1 = p[n];
}
}
//******************************************************************************
//發送ADC12數據
//*p為數據區,adcn為數量
void send_adc12_data(unsigned int *p,unsigned int adcn)
{
unsigned int j;
for(j=0;j<adcn;j++)
{
//if(j==0)
//{
data_converter(display_buffer,p[j]); //數據變換
send_data(display_buffer); //發送數據
// }
// else
// {
// data_converter(display_buffer,p[j]); //數據變換
// send_data(display_buffer); //發送數據
// }
}
}
//******************************************************************************
//******************************************************************************
//發送ADC12數據頭AA 和尾55
//*p為數據區
void send_adc12_xieyi(unsigned int *p,unsigned int adcn)
{
unsigned int j;
for(j=0;j<adcn;j++)
{
data_converter1(display_buffer2,p[j]); //數據變換
send_data(display_buffer2); //發送數據
}
}
//******************************************************************************

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AD_Mx_Seq_UART1.rar (28.72 KB, 下載次數: 17)

ID:1 · 發表于 2020-7-5 19:46

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STM32做的64通道數據采集程序

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