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PIC 24EP512GU810 Bootloader problem

 
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pbraida



Joined: 02 Feb 2011
Posts: 14

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PIC 24EP512GU810 Bootloader problem
PostPosted: Fri Jun 03, 2016 5:22 am     Reply with quote
First sorry for the bad English.

My compiler version is 5.059.

I am try to use the example: pcd_aux_bootloader.
My board has a PIC24EP512GU810 like the example, the bootloader works well. The firmware download occurs with no errors. The problem is when the board re-boots, it never enters in the application program, and if I press the button the bootloader starts again.

I use the example with no notification, the only one is the com port I use is UART2.

Thanks for any help.
pbraida



Joined: 02 Feb 2011
Posts: 14

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PostPosted: Fri Jun 03, 2016 8:06 am     Reply with quote
This is the code for bootloader:
Code:

#define ROM_WRITE_CAN_MODIFY_CONFIG_BITS

#include <24EP512GU810.h>
#fuses NOWDT,RESET_AUX  //The RESET_AUX fuse causes PIC to reset into Auxiliary Memory
#build (AUX_MEMORY)     //Build code for Auxiliary Memory
#use delay(clock=120MHz,crystal=8MHz)

#pin_select U2TX=PIN_E2
#pin_select U2RX=PIN_E3
#use rs232(baud=9600,UART2,errors)

#define PUSH_BUTTON  PIN_B9
#define LED1         PIN_A0
#define LED2         PIN_A1

//The following defines are necessary to use PCD's serial bootloader, loader_pcd.c.
#define _bootloader

#define LOADER_SIZE        0
#define APPLICATION_START  0
#define APPLICATION_END    getenv("PROGRAM_MEMORY")

//Include PCD's serial bootloader
#include <loader_pcd.c>

#INT_AUX
void auxialary_isr(void)
{
   if(interrupt_enabled(INT_TIMER1) && interrupt_active(INT_TIMER1))
   {
      output_toggle(LED1);
      clear_interrupt(INT_TIMER1);
   }
   
   if(interrupt_enabled(INT_TIMER2) && interrupt_active(INT_TIMER2))
   {
      output_toggle(LED2);
      clear_interrupt(INT_TIMER2);
   }
}

void main(void)
{

   set_pullup(TRUE,PIN_B9);   // BOTAO 1
   set_pullup(TRUE,PIN_B10);  // BOTAO 2
   set_pullup(TRUE,PIN_B11);  // BOTAO 3

   if(!input(PUSH_BUTTON))
   {
      delay_ms(140); // wait for PLL
     
      printf("\r\nBootloader Version 1.0\r\n");

      // Let the user know it is ready to accept a download
      printf("\r\nWaiting for download...");
     
      setup_timer1(TMR_INTERNAL | TMR_DIV_BY_256, 58593);   //~250 ms period
      setup_timer2(TMR_INTERNAL | TMR_DIV_BY_256, 23437);   //~100 ms period
     
      enable_interrupts(INT_TIMER1);
//!      enable_interrupts(INT_TIMER2);
      enable_interrupts(GLOBAL);

      // Load the program
      load_program();
   }

   goto_address(APPLICATION_START);
   
}

This is the app code:

#include <24EP512GU810.h>
#fuses NOWDT,RESET_AUX
#use delay(clock=120MHz, crystal=8MHz)

#pin_select U2TX=PIN_E2
#pin_select U2RX=PIN_E3
#use rs232(baud=9600,UART2,errors)

#define PUSH_BUTTON  PIN_D6 
#define LED1         PIN_A0
#define LED2         PIN_A1
#define LED3         PIN_A2

rom char version[] = "Application Version 1.0";

void DisplayLeds(unsigned int8 Led)
{
   output_low(LED1);
   output_low(LED2);
   output_low(LED3);
   
   switch(Led)
   {
      case 0:
         output_high(LED1);
         break;
      case 1:
         output_high(LED2);
         break;
      case 2:
         output_high(LED3);
         break;
   }
}

#INT_TIMER1
void led_isr(void)
{
   static unsigned int8 Led = 0;
   
   DisplayLeds(Led);
   
   if(++Led >= 3)
      Led = 0;
}

void main()
{
   set_pullup(TRUE,PIN_B9);   // BOTAO 1
   set_pullup(TRUE,PIN_B10);  // BOTAO 2
   set_pullup(TRUE,PIN_B11);  // BOTAO 3

   delay_ms(100);

   printf("\r\n%s\r\n", version);
   
   printf("You can put whatever code you want here.\r\n");
   
   printf("So enjoy!\r\n");
   
   setup_timer1(TMR_INTERNAL | TMR_DIV_BY_256, 46874);   //200 ms period;
   
   enable_interrupts(INT_TIMER1);
   enable_interrupts(GLOBAL);
   
   while(TRUE)
   {
      restart_wdt();
   }
}

Any ideas, this code is a CCS example the only change to the original one is the UART number.

Thanks.
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