Codeloader and reeding EEPROM

[Ringo42]

I'm using CCS PCH C Compiler, Version 3.212 and just loaded the CodeLoader bootloader. My program starts up and reads some locations in EEPROM (locations 0-9) and then reboots and starts over. when I don't use the bootloader I don't have this problem. Is there something I need to put in my program different because I'm using the bootloader? I have WDT disabled in the bootloader and the regular code, and the fuses in both are exactly the same.

Thanks,
Ringo
_________________
Ringo Davis

[Ringo42]

Here is what comes out of hyperterminal

reading eeprom baud = 3 Enc = 0
Done setting baud rate
Done READING pid
�
>reading eeprom baud = 3 Enc = 0
Done setting baud rate
Done READING pid

.... over and over

Here is my code;

#include "18f452.h"
#fuses hs,nowdt,noprotect,put,lvp
#device *=16
#device adc=10
#use delay(clock=20000000)
#define LED1_PIN PIN_B6
#define LED2_PIN PIN_B7
#use rs232(baud=19200,xmit=PIN_C6,rcv=PIN_C7,errors,bits=8,parity=N)

///Macros
#define LED1_ON output_high(LED1_PIN)
#define LED2_ON output_high(LED2_PIN)
#define LED1_OFF output_low(LED1_PIN)
#define LED2_OFF output_low(LED2_PIN)


int kVp,kVi,kVd,loops; // PID gain constants for velocity
int kPp,kPi,kPd; // PID gain constants for Pos
int encoder_type;
int heartbeat_counter=0;
int toggle=0;
void init_PIC();
void BlinkLeds();
void SetupNewEEPROM();
void ReadAllEEPROM();
void heartbeat();

/***************************************************************************
void main() --
****************************************************************************/
void main()
{
int data1;
init_PIC();
BlinkLeds();

LED1_OFF;
LED2_OFF;

data1 = read_EEPROM (0);
//printf("The EEPROM is %d\r\n",data1);

if ((data1==255) ||(data1==0)) //blank eeprom
SetupNewEEPROM();
else
ReadAllEEPROM();

enable_interrupts(GLOBAL);
printf("\r\n>");

while (1)
{
heartbeat();
}//end while
}//end main

///////////////////////////////////////////////////////////////////////
void ReadAllEEPROM(void)
{
int address,baud;
address=1;//baudrate
baud = read_EEPROM (address);

address=2;//encoder type
encoder_type= read_EEPROM (address);
printf("reading eeprom baud = %d Enc = %d\r\n",baud,encoder_type);

switch (baud)
{

case 0:
set_uart_speed(2400);
break;
case 1:
set_uart_speed(4800);
break;
case 2:
set_uart_speed(9600);
break;
case 3:
set_uart_speed(19200);
break;
case 4:
set_uart_speed(57600);
break;
case 5:
set_uart_speed(115200);
break;
}
printf("Done setting baud rate\r\n");

address=3;
kVp= read_EEPROM (address);
address=4;
kVi= read_EEPROM (address);

address=5;
kVd= read_EEPROM (address);

address=6;
loops= read_EEPROM (address);

kPp=read_EEPROM (7);
kPi=read_EEPROM (8);
kPd=read_EEPROM (9);
printf("Done READING pid\r\n");

}

/**********************************************************************
void write_PID(void)
**********************************************************************/

void write_PID(void)
{
int data, address;
write_EEPROM (3,kVp);
write_EEPROM (4,kVi);
write_EEPROM (5,kVd);
write_EEPROM (6,loops);
write_EEPROM (7,kPp);
write_EEPROM (8,kPi);
write_EEPROM (9,kPd);


}


///////////////////////////////////////////////////////////////////////
void SetupNewEEPROM(void)
{
int address=0;//1 = blank eeprom test
int data=1;
//printf("Setting up new eeprom\r\n");
write_EEPROM (address,data);
//printf("data at location %d = %d\r\n",address,data);

address=1;//baudrate
data=3;//0=2400,2=9600,3=19200,4=57600,5=115200
write_EEPROM (address,data);
//printf("setting up data %d at location %d \r\n",data,address);
printf("\r\n");

address=2;//Encoder style
data=0;// 0=single. 1 = quad
write_EEPROM (address,data);
//printf("data at location %d = %d\r\n",address,data);
//printf("\r\n");

kVp=10;
kVi=0;
kVd=0;
kPp=1;
kPi=0;
kPd=0;

loops=250;
write_PID();
}

/***************************************************************************
void BlinkLeds (void)
****************************************************************************/
void BlinkLeds (void)
{
int i;
for(i=0;i<5;i++)
{
LED1_ON;
led2_ON;
delay_ms(200);
LED1_OFF;
LED2_OFF;
delay_ms(200);
}
}


/*********************************************************************
void heartbeat()
*********************************************************************/
void heartbeat()
{
heartbeat_counter++;
if (heartbeat_counter >= 50000)
{
heartbeat_counter=0;
Toggle=1-Toggle;
if ( Toggle==1)
{
LED1_on;
led2_off;
}
else
{
LED1_OFF;
led2_on;
}
}
}


/***************************************************************************
void init_PIC() -- Initializes variables
****************************************************************************/
void init_PIC()
{
int i;
short int dummy_variable;
// set up PWM at 19.531 Khz 0-512
setup_ccp1(CCP_PWM);
setup_ccp2(CCP_PWM);
// PWM_MAX=512;
setup_adc_ports(All_ANALOG);
setup_adc( ADC_CLOCK_INTERNAL );
setup_spi(FALSE);
setup_psp(PSP_DISABLED);
setup_timer_2(T2_DIV_BY_4,128,16);// 18.6 khz 0-512 int every 8ms //


//enable_interrupts(INT_TIMER2);
enable_interrupts(INT_RDA);
enable_interrupts(INT_EXT);
enable_interrupts(INT_RB);
enable_interrupts(INT_TIMER2);

// enable_interrupts(GLOBAL);

// stop_motors();
dummy_variable=input(PIN_A0);
dummy_variable=input(PIN_A1);
dummy_variable=input(PIN_A2);
dummy_variable=input(PIN_A3);
dummy_variable=input(PIN_A4);
dummy_variable=input(PIN_A5);
dummy_variable=input(PIN_B5);
dummy_variable=input(PIN_C0);
dummy_variable=input(PIN_E0);
dummy_variable=input(PIN_B0);//motor encoder inputs
dummy_variable=input(PIN_B1);//motor encoder inputs

output_low(PIN_E1);
output_low(PIN_E2);

output_low(PIN_B2);
output_low(PIN_B3);
output_low(PIN_B4);
output_low(PIN_B6);
output_low(PIN_B7);
output_low(PIN_C1);
output_low(PIN_C2);
output_low(PIN_C3);
output_low(PIN_C4);
output_low(PIN_C5);
output_low(PIN_C6);
//output_low(PIN_C7);RX
output_low(PIN_D0);
output_low(PIN_D1);
output_low(PIN_D2);
output_low(PIN_D3);
output_low(PIN_D4);
output_low(PIN_D5);
output_low(PIN_D6);
output_low(PIN_D7);

}
_________________
Ringo Davis