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CosmicPi16CalibrationUtil
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CosmicPi16CalibrationUtil
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/*
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Cosmic Pi V1.6 Calibration script
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Run this to set the EEPROM values in your Cosmic Pi, before flashing the operational software
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Notes to user: If you set the thresholds/HV wrong and it goes crazy with interrupts, just re-flash and the values will
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be reset before the interrupt is attached. Problem solved.
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We write the values in the EEPROM at two places, one will be used for user manipulation, the other will remain there
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for a 'hard reset'
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Features:
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Working:
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Set HVs
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Set Thresholds
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Print out events with integer
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Store values in EEPROM.
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To be added:
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Instant rate meter to be used for getting a better idea of the rate.
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A way to rate limit/lower thresholds if you crash it.
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Licensed under GPL V3 or later
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*/
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//drive the dac channels
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//set values into eeprom
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#include <EEPROM.h>
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/* EEProm mapping table
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*EEPROM Status - byte 00
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*main values
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*channel 0 high byte - 01
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*channel 0 low byte - 02
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*channel 1 high byte - 03
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*channel 1 low byte - 04
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*HV bias ch 0 value - 05
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*HV bias ch 1 value - 06
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*
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*reserve values
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*channel 0 high byte - 01
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*channel 0 low byte - 02
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*channel 1 high byte - 03
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*channel 1 low byte - 04
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*HV bias ch 0 value - 05
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*HV bias ch 1 value - 06
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*/
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//init variables
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int Status = 0; //status for eeprom reads
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int Data = 0; //data in/out of eeprom
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// the setup function runs once when you press reset or power the board
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byte smallpart1; //lsb for DAC settings
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byte bigpart1; //msb for DAC settings
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byte smallpart2; //lsb for DAC settings
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byte bigpart2; //msb for DAC settings
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int HVVal1 = 0xFE; //hv transmission value
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int HVVal2 = 0xFE; //hv transmission value
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//run i2c devices
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#include <Wire.h>
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unsigned long event_count = 0;
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void printTimeAndPin(){
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// print when and which pin was interrupted
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event_count++;
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//Serial.print(name);
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Serial.print("count=");
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Serial.println(event_count);
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//Serial.print(";time=");
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//timemeasure=millis();
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//Serial.println(timemeasure-timeoffset);
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}
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void setup() {
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pinMode(PA6, OUTPUT);
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pinMode(PA4, OUTPUT);
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pinMode(PA5, OUTPUT);
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Serial.begin(9600);
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//config SPI pins
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pinMode(PC7, OUTPUT);
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pinMode(PC8, OUTPUT);
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pinMode(PC3, OUTPUT);
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pinMode(PB13, OUTPUT);
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//set input pins
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pinMode(PC12, INPUT);
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pinMode(PC11, INPUT);
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pinMode(PB10, INPUT);
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//set HV channel 1
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digitalWrite(PC7, LOW);
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setHV(0xAC);
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digitalWrite(PC7, HIGH);
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//set HV channel 2
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digitalWrite(PC8, LOW);
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setHV(0xAC);
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digitalWrite(PC8, HIGH);
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//set DACS
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Wire.setSDA(PB7);
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Wire.setSCL(PB8);
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Wire.begin();
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//initial DAC settings (both channels)
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smallpart1 = 0x2F; //the lsb part
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bigpart1 = 0x02; // the msb part of the dac value
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smallpart2 = 0x2F; //the lsb part
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bigpart2 = 0x02; // the msb part of the dac value
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int address = 0x60;
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Wire.beginTransmission(address);
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Wire.write(B00001000); // sends five bytes
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Wire.write(bigpart1); // sends one byte
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Wire.write(smallpart1);
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Wire.endTransmission();
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Wire.beginTransmission(address);
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Wire.write(B00000000); // sends five bytes
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Wire.write(bigpart2); // sends one byte
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Wire.write(smallpart2);
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Wire.endTransmission();
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attachInterrupt(digitalPinToInterrupt(PB10), printTimeAndPin, RISING);
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}
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void loop() {
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Serial.println("Input a command!");
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Serial.println("[1= set both thresholds; 2= set Ch1 threshold, 3= set Ch2 threshold, 4= set both HV thresholds, 5= set Ch1 HV threshold, 6= set Ch2 HV threshold, 7= set values in EEPROM]");
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int cmd = readIntFromSerial();
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switch(cmd){
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case 1:
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{
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Serial.println("Set a threshold value [1,1024]: ");
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int value = readIntFromSerial();
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smallpart1 = byte(value);
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bigpart1 = byte(value>>8);
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smallpart2 = byte(value);
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bigpart2 = byte(value>>8);
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int address = 0x60;
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//channel 1
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Wire.beginTransmission(address);
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Wire.write(B00001000); // sends five bytes
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Wire.write(bigpart1); // sends one byte
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Wire.write(smallpart1);
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Wire.endTransmission();
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//channel 2
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Wire.beginTransmission(address);
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Wire.write(B00000000); // sends five bytes
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Wire.write(bigpart2); // sends one byte
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Wire.write(smallpart2);
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Wire.endTransmission();
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break;
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}
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case 2:
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{
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Serial.println("Set a threshold value [1,1024]: ");
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int value = readIntFromSerial();
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smallpart1 = byte(value);
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bigpart1 = byte(value>>8);
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int address = 0x60;
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//channel 1
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Wire.beginTransmission(address);
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Wire.write(B00001000); // sends five bytes
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Wire.write(bigpart1); // sends one byte
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Wire.write(smallpart1);
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Wire.endTransmission();
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break;
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}
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case 3:
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{
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Serial.println("Set a threshold value [1,1024]: ");
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int value = readIntFromSerial();
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smallpart2 = byte(value);
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bigpart2 = byte(value>>8);
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int address = 0x60;
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//channel 2
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Wire.beginTransmission(address);
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Wire.write(B00000000); // sends five bytes
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Wire.write(bigpart2); // sends one byte
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Wire.write(smallpart2);
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Wire.endTransmission();
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break;
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}
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case 4:
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{
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Serial.println("Set an HV value [0,255]: ");
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HVVal1 = readIntFromSerial();
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HVVal2 = HVVal1;
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//set HV channel 1
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digitalWrite(PC7, LOW);
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setHV(byte(HVVal1));
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digitalWrite(PC7, HIGH);
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//set HV channel 2
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digitalWrite(PC8, LOW);
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setHV(byte(HVVal2));
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digitalWrite(PC8, HIGH);
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break;
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}
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case 5:
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{
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Serial.println("Set an HV value [0,255]: ");
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HVVal1 = readIntFromSerial();
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//set HV channel 1
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digitalWrite(PC7, LOW);
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setHV(byte(HVVal1));
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digitalWrite(PC7, HIGH);
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break;
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}
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case 6:
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{
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Serial.println("Set an HV value [0,255]: ");
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HVVal2 = readIntFromSerial();
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//set HV channel 2
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digitalWrite(PC8, LOW);
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setHV(byte(HVVal2));
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digitalWrite(PC8, HIGH);
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break;
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}
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case 7:
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{
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//eeprom write
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EEPROM.write(0x01, bigpart1);
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Serial.print("EEPROM.write");
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Serial.print(0x01, HEX);
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Serial.print(" ");
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Serial.println(bigpart1, HEX);
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EEPROM.write(0x02, smallpart1);
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Serial.print("EEPROM.write");
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Serial.print(0x02, HEX);
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Serial.print(" ");
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Serial.println(smallpart1, HEX);
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EEPROM.write(0x03, bigpart2);
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Serial.print("EEPROM.write");
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Serial.print(0x03, HEX);
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Serial.print(" ");
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Serial.println(bigpart2, HEX);
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EEPROM.write(0x04, smallpart2);
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Serial.print("EEPROM.write");
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Serial.print(0x04, HEX);
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Serial.print(" ");
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Serial.println(smallpart2, HEX);
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EEPROM.write(0x05, byte(HVVal1));
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Serial.print("EEPROM.write");
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Serial.print(0x05, HEX);
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Serial.print(" ");
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Serial.println(HVVal1, HEX);
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EEPROM.write(0x06, byte(HVVal2));
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Serial.print("EEPROM.write");
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Serial.print(0x06, HEX);
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Serial.print(" ");
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Serial.println(HVVal2, HEX);
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EEPROM.write(0x00, 0x01); //set the status bit, have 1 set of stored values
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Serial.print("EEPROM.write");
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Serial.print(0x00, HEX);
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Serial.print(" ");
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Serial.println(0x01, HEX);
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//eeprom backup location
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EEPROM.write(0x21, bigpart1);
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Serial.print("EEPROM.write");
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Serial.print(0x21, HEX);
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Serial.print(" ");
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Serial.println(bigpart1, HEX);
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EEPROM.write(0x22, smallpart1);
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Serial.print("EEPROM.write");
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Serial.print(0x22, HEX);
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Serial.print(" ");
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Serial.println(smallpart1, HEX);
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EEPROM.write(0x23, bigpart2);
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Serial.print("EEPROM.write");
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Serial.print(0x23, HEX);
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Serial.print(" ");
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Serial.println(bigpart2, HEX);
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EEPROM.write(0x24, smallpart2);
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Serial.print("EEPROM.write");
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Serial.print(0x24, HEX);
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Serial.print(" ");
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Serial.println(smallpart2, HEX);
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EEPROM.write(0x25, HVVal1);
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Serial.print("EEPROM.write");
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Serial.print(0x25, HEX);
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Serial.print(" ");
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Serial.println(HVVal1, HEX);
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EEPROM.write(0x26, HVVal2);
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Serial.print("EEPROM.write");
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Serial.print(0x26, HEX);
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Serial.print(" ");
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Serial.println(HVVal2, HEX);
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EEPROM.write(0x00, 0x02); //set the status to show that backup positions have been written
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Serial.print("EEPROM.write");
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Serial.print(0x00, HEX);
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Serial.print(" ");
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Serial.println(0x02, HEX);
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}
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}
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}
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// this function sets the thresholds for the MAX5387
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// 1 is the first channel, 2 the second and 3 sets both at the same time
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byte setHV(byte _send) // This function is what bitbangs the data
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{
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if (_send > 0x6F){
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for(int i=0; i<8; i++) // There are 8 bits in a byte
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{
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digitalWrite(PC3, bitRead(_send, 7-i)); // Set MOSI
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//delay(1);
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digitalWrite(PB13, HIGH); // SCK high
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//bitWrite(_receive, i, digitalRead(MISO_pin)); // Capture MISO
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digitalWrite(PB13, LOW); // SCK low
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//digitalWrite(MOSI_pin, LOW); // Set MOSI
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}
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//digitalWrite(SS_pin[j], HIGH); // SS high again
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}
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}
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//return _receive; // Return the received data
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int readIntFromSerial(){
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int val = Serial.parseInt();
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while (val == 0){
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delay(100);
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val = Serial.parseInt();
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}
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return val;
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}
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