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dj1711572002/L432kc_ADS122U04_01ok.ino Secret

Created December 17, 2024 06:41
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NucleoL432KC- ADS122U04 uart1　drive
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L432kc_ADS122U04_01ok.ino
#include "HardwareSerial.h"
//For Teensy4.1
//----------------Texsus ADS122U04--------------------------
int DRDY = 23; //DataRdy Pin 23
long ft1, ft2;
int RREGwait;
int flipN;
uint8_t RR0, RR1, RR2, RR3, RR4;
uint8_t d0, d1, d2, d3, d4, d5, d6;
long data1chi, data2chi;
double data1ch, data2ch;
int DRDYflag = 0;
int res;
int cd=200;
HardwareSerial Serial1(D0,D1);
//--------------toint32-----------------------------
int Toint24(byte d0, byte d1, byte d2)
{
long val;
if ((d2 & B10000000) == B10000000)
{ //最上位ビットたっていればマイナス
val=(d0+d1*256+d2*256*256)-0xFFFFFF+1;
}
else
{
val = d0+d1*256+d2*256*256;
}
return val;
}
//--------------------------------------------------
void key()
{
Serial.println("Input 'a' key");
char c=' ';
while(c!='a'){
c=Serial.read();
}
//Serial.clear();
}
int readReg(int n)
{
//Serial.println("In readReg");
int RREGwait=1200;
int regN=0;
int RR;
if(n==0){regN=0x20;}
if(n==1){regN=0x22;}
if(n==2){regN=0x24;}
if(n==3){regN=0x26;}
if(n==4){regN=0x28;}
Serial1.write(0x55);//Synchronization word 0x55
delayMicroseconds(cd);
Serial1.write(regN);//Synchronization word 0x55 Read REGister00=0010 0000=0x20
delayMicroseconds(RREGwait);
int flag=0;
while (flag==0)
{
if(Serial1.available()>0)
{
RR = Serial1.read();
delayMicroseconds(RREGwait);
Serial.printf("readRegister%x=>[0x%x]",n,RR);
Serial.println();
flag=1;
}
}
//Serial5.clear();
return RR;
}
void setup() {
// シリアル設定
Serial.begin(115200);//USB
Serial1.begin(115200.); //Teensy4.1 RX5-ADS122 RX5(21)-TX,TX5(20)-RX
delay(5000);
Serial.println("-----------------START SET UP--------------");
delayMicroseconds(1000);
//key();
//=============ADS122U04レジスタ初期設定==========================================
//ADS122U04 RESET
Serial1.write(0x55);
Serial.print("write 0x55");
delayMicroseconds(cd);
Serial1.write(0x06);
Serial.print("write 0x06");
delayMicroseconds(1000);
res= readReg(0);
//================Register Setting=============================================================================
RREGwait = 1000; //RREG wait time usec 2*Tbaud(10usec)
//-----Register00[7:4(MUX)3:1(GAIN)0(PGA_BYPASS)]--------------------------------------------------------------
Serial.println("Register0 writing");
Serial1.write(0x55);//Synchronization word 0x55
delayMicroseconds(cd);
Serial1.write(0x40);//WriteREGister 0x04 0x00(0000register00 Selected)
delayMicroseconds(cd);
//Serial5.write(0x0E);//7:0(0000 1110=0x0E)[7:4(0000)MUX AINp=AIN0,AINn=AIN1 3:1(111)GAIN128, 0:0(0)PGA enabled]
Serial1.write(0x0C);//7:0(0000 1100=0x0C)[7:4(0000)MUX AINp=AIN0,AINn=AIN1 3:1(110)GAIN64, 0:0(0)PGA enabled]
delayMicroseconds(1000);
res=readReg(0);
//-----Register01[7:5(DataRate)4:(OperationMode)3:(ConversionMode)2:1(VREF)0:(TemperatureSensor mode)]---------
Serial.println("Register1 writing");
Serial1.write(0x55);//Synchronization word 0x55
delayMicroseconds(cd);
Serial1.write(0x42);// WriteREGister 0x04 0x02(0010register01 Selected)
delayMicroseconds(cd);
Serial1.write(0xCE);//7:0(1100 1110=0xCE)[7:5(110)DataRate1000sps,4:(0)Normal Mode, 3:(1)Continuous conversion mode,2:1(11)VDD-VSS VRef,0:(0)Temp disabled]
//Serial5.write(0xAE);//7:0(1010 1110=0xAE)[7:5(101)DataRate600sps,4:(0)Normal Mode, 3:(1)Continuous conversion mode,2:1(11)VDD-VSS VRef,0:(0)Temp disabled]
//Serial5.write(0x8E);//7:0(1000 1110=0x8E)[7:5(100)DataRate330sps,4:(0)Normal Mode, 3:(1)Continuous conversion mode,2:1(11)VDD-VSS VRef,0:(0)Temp disabled]
//Serial5.write(0x4E);//7:0(0100 1110=0x0E)[7:5(010)DataRate90sps,4:(0)Normal Mode, 3:(1)Continuous conversion mode,2:1(11)VDD-VSS VRef,0:(0)Temp disabled]
delayMicroseconds(1000);
res=readReg(1);
// key();
//-----Register02[7:DRDY)6:(DCNT)5:4(CRC)3:(BCS)2:0(IDAC)]-----------------------------------------------------
Serial.println("Register2 writing");
Serial1.write(0x55);//Synchronization word 0x55
delayMicroseconds(cd);
Serial1.write(0x44);// WriteREGister 0x04 0x04(0100register02 Selected)
delayMicroseconds(cd);
Serial1.write(0x00);//7:0(0000 1000=0x08)[7:(0)DRDY,6:(0)DCNT disable, 5:4(00)) inverte,3:(1)BCS Off（0）,2:0(0)IDAC off]
delayMicroseconds(1000);
res=readReg(2);
//----Register03[7:5(I1MUX)4:2(I2MUX)1(RSERVED)0(AUTO)]----------------------------------------------------
Serial.println("Register3 writing");
Serial1.write(0x55);//Synchronization word 0x55
delayMicroseconds(cd);
Serial1.write(0x46);// WriteREGister 0x04 0x06(0110register03 Selected)
delayMicroseconds(cd);
Serial1.write(0x00);//7:0(00000000=0x00)[7:5(000)default,4:2(000)default, 1:(0)Reserved,0:(0)Manual Read
delayMicroseconds(1000);
res=readReg(3);
delayMicroseconds(1000);
//----Register04[7:(Reserved)6:(GPIO2DIR)5:(GPIO1DIR)4:(GPIO0DIR)3:(GPIO2SEL)2:(GPIO2DAT)1:(GPIO1DAT)0:(GPIODAT0)]----------------------------------------------------
Serial.println("Register4 writing");
Serial1.write(0x55);//Synchronization word 0x55
delayMicroseconds(cd);
Serial1.write(0x48);// WriteREGister 0x04 0x08(1000register04 Selected)
delayMicroseconds(cd);
Serial1.write(0x48);//7:0(0100 1000=0x08)[6:(1)GPIO2output,5:(0)GPIO1Input, 4:(0)GPIO0Input,3:(1)GPIO2SEL DRDY,2:(0)GPIO2DAT Low,1:(0)GPIO1DAT Low,0:(0)GPIO0DAT Low
delayMicroseconds(1000);
res=readReg(4);
Serial.println("CHECK Written Registers");
delay(5000);
//key();
//Serial.println("====Start/Sync Go=============");
//Start/Sync
Serial1.write(0x55);
delayMicroseconds(cd);
Serial1.write(0x08);
delayMicroseconds(100);//************************このWAIT重要************************************
//ピン割り込み設定
pinMode(D3, INPUT_PULLUP);
//attachInterrupt(digitalPinToInterrupt(2),呼び出される関数,FALLING);
attachInterrupt(D3, flip,FALLING);//DRDY 下がりエッジで割り込み関数flipへ飛ぶ
}
void loop() {
// put your main code here, to run repeatedly:
delayMicroseconds(50000);//5msec Period
Serial.print("*");
}
//==================InterruptIn DRDY====================
void flip() {
flipN++;
//delayMicroseconds(100000);
if (flipN % 2 == 0 )//偶数回は１CH,奇数回は2CH　Ch間ずれ1.4msec 周期2.65msec 370Hz
{
//1CH-----Register00[7:4(MUX)3:1(GAIN)0(PGA_BYPASS)]--------------------------------------------------------------
Serial1.write(0x55);//Synchronization word 0x55
Serial1.write(0x40);//WriteREGister 0x04 0x00(0000register00 Selected)
Serial1.write(0x0E);//7:0(0000 1110=0x0E)[7:4(0000)MUX AINp=AIN0,AINn=AIN1 3:1(111)GAIN128, 0:0(0)PGA enabled]
//Serial5.write(0x0C);//7:0(0000 1100=0x0c)[7:4(0000)MUX AINp=AIN0,AINn=AIN1 3:1(110)GAIN64, 0:0(0)PGA enabled]
delayMicroseconds(50);
Serial1.write(0x55);
delayMicroseconds(cd);
Serial1.write(0x10);
delayMicroseconds(10);
d0 = Serial1.read();
delayMicroseconds(10);
d1 = Serial1.read();
delayMicroseconds(10);
d2 = Serial1.read();
delayMicroseconds(10);
data1chi=Toint24(d0,d1,d2);
//Serial.printf("[CH1]%d:d0=%x,d1=%x,d2=%x,data=%d\n\r",micros(),d0,d1,d2,data1chi);
ft1 = (int)(micros());
//Serial.printf("%d,%6.2f\n\r",data1chi,ft1);
}
else
{
//2CH-----Register00[7:4(MUX)3:1(GAIN)0(PGA_BYPASS)]--------------------------------------------------------------
delayMicroseconds(50);
Serial1.write(0x55);//Synchronization word 0x55
delayMicroseconds(cd);
Serial1.write(0x40);//WriteREGister 0x04 0x00(0000register00 Selected)
delayMicroseconds(cd);
Serial1.write(0x6E);//7:0(0110 1110=0x6E)[7:4(0110)MUX AINp=AIN2,AINn=AIN3 3:1(111)GAIN128, 0:0(0)PGA enabled]
//Serial5.write(0x60);//7:0(0110 0000=0x60)[7:4(0110)MUX AINp=AIN2,AINn=AIN3 3:1(000)GAIN1, 0:0(0)PGA enabled]
delayMicroseconds(100);
Serial1.write(0x55);
delayMicroseconds(cd);
Serial1.write(0x10);
delayMicroseconds(10);
d3 = Serial1.read();
delayMicroseconds(10);
d4 = Serial1.read();
delayMicroseconds(10);
d5 = Serial1.read();
delayMicroseconds(10);
data2chi=Toint24(d3,d4,d5);
//Serial.printf("[CH2]%d:d3=%x,d4=%x,d5=%x,data=%4.4f\n\r",micros(),d3,d4,d5,data2ch);
ft2 = (int)(micros());
Serial.printf("%d,%d,%d,%d\n\r",data1chi,data2chi,ft1,ft2);
}
}
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