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still working on random number generation

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This commit is contained in:
James Devine 2017-02-11 18:57:18 +01:00
parent 32c393d035
commit 9b053b3c87
4 changed files with 227 additions and 16 deletions
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8
Accel.ino
View file

@ -1,4 +1,8 @@
//This file contains subroutines for the Accelerometer and the Pressure sensor.
//This file contains subroutines for the Accelerometer
#define ACL_ID 0x49 // LMS303D ID register value
#define ACL_ID_REG 0x0F // LMS303D ID register address
void AccelSetup(){
@ -155,4 +159,4 @@ uint8_t xlo,xhi,ylo,yhi,zlo,zhi;
acl_fx = (AccelFullScale * GravityEarth) * ((float) (acl_x) / (float) 0x7FFF);
acl_fy = (AccelFullScale * GravityEarth) * ((float) (acl_y) / (float) 0x7FFF);
acl_fz = (AccelFullScale * GravityEarth) * ((float) (acl_z) / (float) 0x7FFF);
}
}

45
CosmicPiArduino.ino
View file

@ -2,7 +2,7 @@
//Cosmic Pi Firmware - forked version J.Devine 2017
//Bugs: Internal temperature doesn't work when ADC is in free running mode; configuration needs changing in the temp subroutine.
//This particular build is focused on being a random number generator
float ADCTempValue = 0; //buffer for the internal temperature
String SerialNumberValue = ""; //Buffer for the serial number
@ -26,20 +26,29 @@ bool dump = false; //if there's an event, dump the data.
//I2C Bus 0 Addresses
#define I2CPot 0x28
#define I2CPot1_PIN 35
#define I2CPot2_PIN 36
#define I2CPot3_PIN 37
#define I2CPot1_PIN 35 //PA0 on the circuit diagram
#define I2CPot2_PIN 36 //PA1 on the circuit diagram
#define I2CPot3_PIN 37 //PA2 on the circuit diagram
#define AccelSA0 26
#define AccelSA1 27 // address pin for the LPS25H
//I2C Bus 1 Addresses
#define HumAddr 0x40
#define AccelAddr 0x1D // LMS303D on the main board on i2c bus 1
#define ACL_ID 0x49 // LMS303D ID register value
#define ACL_ID_REG 0x0F // LMS303D ID register address
#define PressureAddr 0x5C
#define AccelFullScale 2.0 // +-2g 16 bit 2's compliment
#define GravityEarth 9.80665 //The earth's gravity
const int HVSetpoints[50] = {0x8F,0x8F,0x8E,0x8D,0x8D,0x8C,0x8B,0x8B,0x8A,0x89,
0x89,0x88,0x87,0x87,0x86,0x86,0x85,0x84,0x84,0x83,
0x82,0x82,0x81,0x80,0x80,0x7F,0x7E,0x7E,0x7D,0x7D,
0x7C,0x7B,0x7B,0x7A,0x79,0x79,0x78,0x77,0x77,0x76,
0x75,0x75,0x74,0x73,0x73,0x72,0x72,0x71,0x70,0x70};
//HV setpoints, starting from 0 to 50 degrees (i.e. 0th element is 0 degrees) - add 0.5 and cast as an int for the index.
String StringEventBuf[3] = {"Output String Buffer Event 1", "Output String Buffer Event 2", "Output String Buffer Event 3"};
long EventTimestamp[3] = {0,0,0};
@ -53,16 +62,19 @@ void setup() {
//Start Wire (I2C comms)
Wire.begin();
Wire1.begin();
//LED output pins
pinMode(Power_LED, OUTPUT); //Power LED
pinMode(Event_LED, OUTPUT); //Event LED
pinMode(Event_Input, INPUT); //Event LED
//SoftSPI output pins
digitalWrite(SS, HIGH); // Start with SS high
pinMode(SS_pin, OUTPUT);
pinMode(SCK_pin, OUTPUT);
pinMode(MISO_pin, INPUT); //note this is the avalanche output from the MAX1932, but not yet used
pinMode(MOSI_pin, OUTPUT);
//I2CPot output pins
pinMode(I2CPot1_PIN, OUTPUT);
pinMode(I2CPot2_PIN, OUTPUT);
@ -71,18 +83,21 @@ void setup() {
digitalWrite(I2CPot1_PIN, LOW);
digitalWrite(I2CPot2_PIN, LOW);
digitalWrite(I2CPot3_PIN, LOW);
// Pressure sensor address setup
pinMode(AccelSA1, OUTPUT); //Pressure Sensor
digitalWrite(AccelSA1, LOW);
Serial.begin(9600);//we run the serial at 9600 for debugging only.
//make sure the LED's are off
digitalWrite(Power_LED, 0);
digitalWrite(Event_LED, 0);
//Temporary positioning; Read the temperature at boot in the Arduino
//ADCTempValue = ADCTemp();
//Serial.println(ADCTempValue);
//Set the Vbias based on the internal temperature at boot
VbiasSet(100);
PressureSetup();
VbiasSet(HVSetpoints[int(PressureTemp()+0.5)]);
//VbiasSet(100);
ThresholdSet(130,130);
//ADCSetup();
@ -106,7 +121,10 @@ Serial.println(Ch2);
void loop() {
//Serial.println(String(analogRead(A6))+" "+String(analogRead(A7))+" " +int(digitalRead(Event_Input)));
Serial.println(PressureTemp());
delay(1000);
/*
if (digitalRead(Event_Input)) {
Serial.print("Event ");
oldtime = timeX;
@ -128,6 +146,7 @@ EventFlashOff();
//Serial.println("Accel");
//AccelRead();
// Serial.println(String(Accel[0])+" "+ String(Accel[1])+" "+ String(Accel[2]));
*/
}
@ -303,4 +322,4 @@ float treal = fixtemp + (( trans * ulValue ) - offset ) / factor;
return treal;
}

100
Pressure.ino Normal file
View file

@ -0,0 +1,100 @@
//all this stuff comes from the LHP25S data sheet
#define PressureREF_P_XL 0x08
#define PressureREF_P_L 0x09
#define PressureREF_P_H 0x0A
#define PressureWho_Am_I 0x0F
#define PressureRES_CONF 0x10
#define PressureCTRL_REG1 0x20
#define PressureCTRL_REG2 0x21
#define PressureCTRL_REG3 0x22
#define PressureCTRL_REG4 0x23
#define PressureINT_CFG 0x24
#define PressureINT_SOURCE 0x25
#define PressureSTATUS_REG 0x27
#define PressurePRESS_POUT_XL 0x28
#define PressurePRESS_OUT_L 0x29
#define PressurePRESS_OUT_H 0x2A
#define PressureTEMP_OUT_L 0x2B
#define PressureTEMP_OUT_H 0x2C
#define PressureFIFO_CTRL 0x2E
#define PressureFIFO_STATUS 0x2F
#define PressureTHS_P_L 0x30
#define PressureTHS_P_H 0x21
#define PressureRPDS_L 0x39
#define PressureRPDS_H 0x3A
void PressureDebug(){
//debug information that might be useful for this sensor
byte PressureID = 0;
Wire1.beginTransmission(PressureAddr);
Wire1.write(PressureWho_Am_I);
Wire1.endTransmission();
Wire1.requestFrom(PressureAddr,1);
PressureID = Wire1.read();
Serial.println("PressureID");
Serial.println(PressureID, HEX);
Wire1.beginTransmission(PressureAddr);
Wire1.write(0x27);
Wire1.endTransmission();
Wire1.requestFrom(PressureAddr,1);
PressureID = Wire1.read();
Serial.println("Status");
Serial.println(PressureID, BIN);
}
void PressureSetup(){
//set up the pressure sensor for reading. Always do this on boot, otherwise the device will be in power down mode.
byte PressureResolution = 0;
byte PressureConfig = 0;
byte PressureTempL = 0;
byte PressureTempH = 0;
//Serial.println("Setting up pressure sensor");
//Setup Resolution
Wire1.beginTransmission(PressureAddr);
Wire1.write(PressureRES_CONF);
Wire1.write(B00001111);
Wire1.endTransmission();
Wire1.requestFrom(PressureAddr,1);
PressureResolution = Wire1.read();
Serial.println(PressureResolution, BIN);
//Setup Control Registers
Wire1.beginTransmission(PressureAddr);
Wire1.write(PressureCTRL_REG1);
Wire1.write(B10010011); //activate device, set resolution to 1hz, enable BDU
Wire1.endTransmission();
Wire1.requestFrom(PressureAddr,1);
PressureConfig = Wire1.read();
Serial.println(PressureConfig, BIN);
}
float PressureTemp(){
//Read the Temperature using the pressure sensor, borrowed from the LPS Library by ryantm
// go find the full thing at https://github.com/pololu/lps-arduino
Wire1.beginTransmission(PressureAddr);
// assert MSB to enable register address auto-increment
Wire1.write(PressureTEMP_OUT_L | (1 << 7));
Wire1.endTransmission();
Wire1.requestFrom(PressureAddr, (byte)2);
while (Wire1.available() < 2);
uint8_t tl = Wire1.read();
uint8_t th = Wire1.read();
// combine bytes
int16_t PresTempRaw = (th << 8 | tl);
return 42.5 + (float)PresTempRaw / 480;
}

90
peripherals.ino
View file

@ -69,4 +69,92 @@ void VbiasSet(int Vbias) {
//bus scanning routines for debugging, borrowed from code on Arduino.cc
// according to the i2c scanner by Nick Gammon
// http://www.gammon.com.au/forum/?id=10896
void busscan0()
{
byte error, address;
int nDevices;
Serial.println("Scanning I2C Bus 0...");
nDevices = 0;
for(address = 1; address < 127; address++ )
{
// The i2c_scanner uses the return value of
// the Write.endTransmisstion to see if
// a device did acknowledge to the address.
Wire.beginTransmission(address);
error = Wire.endTransmission();
if (error == 0)
{
Serial.print("I2C device found at address 0x");
if (address<16)
Serial.print("0");
Serial.print(address,HEX);
Serial.println(" !");
nDevices++;
}
else if (error==4)
{
Serial.print("Unknow error at address 0x");
if (address<16)
Serial.print("0");
Serial.println(address,HEX);
}
}
if (nDevices == 0)
Serial.println("No I2C devices found\n");
else
Serial.println("done\n");
delay(5000); // wait 5 seconds for next scan
}
void busscan1()
{
byte error, address;
int nDevices;
Serial.println("Scanning I2C Bus 1...");
nDevices = 0;
for(address = 1; address < 127; address++ )
{
// The i2c_scanner uses the return value of
// the Write.endTransmisstion to see if
// a device did acknowledge to the address.
Wire1.beginTransmission(address);
error = Wire1.endTransmission();
if (error == 0)
{
Serial.print("I2C device found at address 0x");
if (address<16)
Serial.print("0");
Serial.print(address,HEX);
Serial.println(" !");
nDevices++;
}
else if (error==4)
{
Serial.print("Unknow error at address 0x");
if (address<16)
Serial.print("0");
Serial.println(address,HEX);
}
}
if (nDevices == 0)
Serial.println("No I2C devices found\n");
else
Serial.println("done\n");
delay(5000); // wait 5 seconds for next scan
}