EEPROM - Frustrating runtime errors

Your example works here. Perhaps the EEPROM in your TC275 is messed up?

Try this.

EEPROM_test.ino (3.02 KB)

If the EEPROM init fails, we erase the entire EEPROM and restart the processor.

The problem is caused by having too much data in the LMU RAM. This crashes the malloc() used by the EEPROM driver. In this sketch, there is no real advantage in using the LMU RAM as the default data area is DSPR0 which is what setup() and loop() use.

This works on our rig:

//==========================================================================================
#include <EEPROM.h>
#include "Wstring.h"

//==========================================================================================
#include <SPI.h>
#include <Wire.h>
//#include "Adafruit_SH1106.h"
#define OLED_RESET 4
//Adafruit_SH1106 display(OLED_RESET);

#include <SD.h>
File myFile;
//==========================================================================================
#include <Ethernet.h>
//==========================================================================================
/* LMU uninitialised data */
StartOfUninitialised_LMURam_Variables
/* Put your LMU RAM fast access variables that have no initial values here e.g. uint32 LMU_var; */

/* Moved */

EndOfUninitialised_LMURam_Variables

/* LMU uninitialised data */

StartOfInitialised_LMURam_Variables
/* Put your LMU RAM fast access variables that have an initial value here e.g. uint32 LMU_var_init = 1; */

int tcpPort = 3001;

const int maxScans = 153;
const int sensorSegments = 16;

int numEEPROMVariables = 35;

int autoAdjust = 1;
int bypassServer = 1;

bool acceptClient = true;
bool disableSensors = true;

int address = 0;
byte value = 0;
boolean f = true;

String str [45];
String b;

int pos1 = 0;
int pos2 = 0;

EndOfInitialised_LMURam_Variables

String request = "";

int sensorNum;
int sensorAngle[3];
float segAngle[3][16];
float segAngleSin[3][16];
float segAngleCos[3][16];

IPAddress myTCPserverIP;
int myTCPserverPort;

IPAddress ipAddress;
IPAddress subnet;
IPAddress gateway;

int sensorBusyArr[3];
int sensorTrigTimeArr[3];
int sensorScansArr[3];

String myMessage[3];

//==========================================================================================
//Misc. Startup
//==========================================================================================
bool printDist = true;
int numRep = 100;
long cntRep = 0;
double frequency;

//===================================================================================================================================================
//Web Server
//===================================================================================================================================================
byte mac[] = {0x2C, 0xF7, 0xF1, 0x08, 0x29, 0x73};

int webServerPort = 5555;
EthernetServer server(webServerPort);

EthernetClient TtcClient;
//===================================================================================================================================================
int cloudPoints[3][maxScans][sensorSegments][2];
int truckHeight[3][maxScans];
int truckHeightAvg[3][maxScans];
int truckWidth[3][maxScans];
int offCenter[3][maxScans];
//===================================================================================================================================================
//Other
//===================================================================================================================================================
int distVal;
long timeNow;
String myConn;
int iCount;
//===================================================================================================================================================

void setup() {



// Open serial communications and wait for port to open:
SerialASC.begin(115200);
//=======================================================================================

SerialASC.println(">>>>>> EEPROM INIT");
if (EEPROM.eeprom_initialise() == EEPROM_Not_Initialised)
{
/* EEPROM is bad */
SerialASC.println( "EEPROM is bad");
while (1) {
SerialASC.println( ".... bad");
;
Reset_TC275();
}
}
SerialASC.println("EEPROM INIT COMPLETE");
}

void loop()
{


}



void setup1() {
// put your setup code for core 1 here, to run once:


}


void loop1() {
// put your main code for core 1 here, to run repeatedly:


}



/*** Core 2 ***/

/* CPU2 Uninitialised Data */
StartOfUninitialised_CPU2_Variables
/* Put your CPU2 fast access variables that have no initial values here e.g. uint32 CPU2_var; */
EndOfUninitialised_CPU2_Variables

/* CPU2 Initialised Data */
StartOfInitialised_CPU2_Variables
/* Put your CPU2 fast access variables that have an initial value here e.g. uint32 CPU2_var_init = 1; */
EndOfInitialised_CPU2_Variables


void setup2() {
// put your setup code for core 2 here, to run once:


}


void loop2() {
// put your main code for core 2 here, to run repeatedly:


}

=================================================================

Thank you again.

I tried it. It is a hit and miss! Sometimes it works and sometimes it stops at:


if (EEPROM.eeprom_initialise() == EEPROM_Not_Initialised)

I am suspecting memory corruption due to a SH1106 i2c display and have filed a separate post. Is this possible?

Hey,

ok thanks for this information.

Is there another way to permanently store float variables (calibration data) on the TC375 without defining the values directly in the code, yet?