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Don´t work: PIC18F14K50+ Microchip HID bootloader + CCS CDC

 
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marcotulio



Joined: 05 May 2014
Posts: 1

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Don´t work: PIC18F14K50+ Microchip HID bootloader + CCS CDC
PostPosted: Mon May 05, 2014 2:37 pm     Reply with quote
As related in:
http://www.ccsinfo.com/forum/viewtopic.php?t=50423&view=next

I'm using Microchip HID bootloader (Version:v2.90a ) with PIC18F14K50 and CCS version 4.120

The firmware based on CCS CDC example loaded to the chip without HID bootloader is working.

The CDC serial emulation firmware from Microchip is working.

The Virtual Serial Port is create in PC host (Windows 7 32bits)

I could detect that don´t connect:

Code:
  while(!usb_cdc_connected())


The firmware don´t save config bits with bootloader

Complete firmware:
Code:

#fuses HS,NOWDT,NOLVP,NODEBUG,NOBROWNOUT,PLLEN,USBDIV1,CPUDIV1,NOMCLR,NOFCMEN,NOIESO,NOLVP,NOPUT   
#use delay(clock=48000000)

#build (reset=0x1000, interrupt=0x1008)
#org 0x000, 0xfff { } //0xfff = 1000 -1


// Includes all USB code and interrupts
#include <usb_cdc.h>

char c_recebido;

void main()
{
   
   usb_cdc_init();   
   usb_init();   
 
   
   while(!usb_cdc_connected())
   {
 
   }   
   output_high(PIN_B7);   
  while(1) 
  {
  usb_task();     
      if (usb_enumerated())
        {   
       
         if (usb_cdc_kbhit())         
            {                 
            c_recebido = usb_cdc_getc();
            usb_cdc_putc(c_recebido);
            }
        }   
 
  }
}


The hardware schematic is here:


http://www.bitguides.com/_/rsrc/1344235584199/pic18-Guides/getting-started/basicConnection.png?height=346&width=400

Thank you in advance for help
Marco
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