hello team,
i came across pga460-q1 it well suits for my distance sensing application. i had some confusion about UART communication. i would like to interface pga460 with arduino uno. can anyone help me out with this. and am confused with eeprom write and burn methods. please help me with this. and please suggest me exact coding procedure for both pga460 and arduino.
advance thanks...
hello Akeem Whitehead. this what my algorithm and circuit is.
tx of pga to 10 pin of arduino.
rx of pga to 11 pin of arduino.
Firstly am writing eeprom with bulk command
And them am programming with unlock and programming command
Finally am reading the eeprom values, but its only giving bunch of 255 values. I think bulk write and programming is not working properly in my algorithm.
Can you please help me with this problem what am facing...
#include <SoftwareSerial.h>
SoftwareSerial mySerial(10,11);
#define syncByte 0x55
byte EEBW = 0x60;//eeprom bulk write
byte EE_UNLCK = 0x50;// eeprom unlock
byte EEREAD = 0x48;// eeprom read
byte USER_DATA[20];
byte burnStat = 0;
byte temp = 0;
void setup()
{
pinMode(10, INPUT);
pinMode(11, OUTPUT);
mySerial.begin(9600);//pga comm
Serial.begin(9600);//serial monitor print
eeprom_bulkwrite();
eeprom_unlock_prgrm();
eeprom_read();
}
void loop()
{
}
void eeprom_bulkwrite()
{
for (int i=0;i<20;i++)
{
USER_DATA[i]= 0x11;
}
byte TVGAIN0 = 0xAA;
byte TVGAIN1 = 0xAA;
byte TVGAIN2 = 0xAA;
byte TVGAIN3 = 0x51;
byte TVGAIN4 = 0x45;
byte TVGAIN5 = 0x14;
byte TVGAIN6 = 0x50;
byte INIT_GAIN = 0x54;
byte FREQUENCY = 0x32;
byte DEADTIME = 0xA0;
byte PULSE_P1 = 0x08;
byte PULSE_P2 = 0x10;
byte CURR_LIM_P1 = 0x55;
byte CURR_LIM_P2 = 0x55;
byte REC_LENGTH = 0x19;
byte FREQ_DIAG = 0x33;
byte SAT_FDIAG_TH = 0xEE;
byte FVOLT_DEC = 0x7C;
byte DECPL_TEMP = 0x4F;
byte DSP_SCALE = 0x00;
byte TEMP_TRIM = 0x00;
byte P1_GAIN_CTRL = 0x09;
byte P2_GAIN_CTRL = 0x09;
byte buf1[46] = {syncByte, EEBW, USER_DATA[0], USER_DATA[1], USER_DATA[2], USER_DATA[3], USER_DATA[4],
USER_DATA[5], USER_DATA[6], USER_DATA[7], USER_DATA[8], USER_DATA[9],
USER_DATA[10], USER_DATA[11], USER_DATA[12], USER_DATA[13], USER_DATA[14],
USER_DATA[15], USER_DATA[16], USER_DATA[17], USER_DATA[18], USER_DATA[19],
TVGAIN0,TVGAIN1,TVGAIN2,TVGAIN3,TVGAIN4,TVGAIN5,TVGAIN6,
INIT_GAIN,FREQUENCY,DEADTIME,
PULSE_P1,PULSE_P2,CURR_LIM_P1,CURR_LIM_P2,
REC_LENGTH,FREQ_DIAG,SAT_FDIAG_TH,FVOLT_DEC,DECPL_TEMP,
DSP_SCALE,TEMP_TRIM,P1_GAIN_CTRL,P2_GAIN_CTRL};
mySerial.write(buf1, sizeof(buf1));
delay(50);
}
void eeprom_unlock_prgrm()
{
byte regAddr = 0x40;
// Write "0xD" to EE_UNLCK to unlock EEPROM
byte regData = 0x68;
byte buf2[4] = {syncByte, EE_UNLCK, regAddr, regData};
mySerial.write(buf2, sizeof(buf2));
delay(1);
// Write '1' to EEPRGM bit at EE_CNTRL register
byte regData1 = 0x69;
byte buf3[4] = {syncByte, EE_UNLCK, regAddr, regData1};
mySerial.write(buf3, sizeof(buf3));
delay(1000);
}
void eeprom_read()
{
//Read back EEPROM program status
//pga460SerialFlush();
byte regAddr = 0x40; //start of EDD
byte buf4[3] = {syncByte, EEREAD, regAddr};
mySerial.write(buf4, sizeof(buf4));
delay(10);
for(int n=0; n<44; n++)
{
if(n==1)
{
burnStat = mySerial.read();
Serial.println(burnStat);
}
else
{
temp = mySerial.read();
Serial.println(temp);
}
}
}
And what am getting after reading from eeprom
