[SOLVED] need serial bootloader for pic18f4550 pic controlller

[embpic]

i am using pic 18f4550 pic controller and xc8 compiler. I need serial bootloader
now for same pic.i have for pic 16f876a but not for 18f4550. and please provide tutorial for same.

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i read the following link for reference
http://www.picprojects.net/serialbootloader/

 

[embpic]

I used last time to tiny bootloader but it didn't recognise the pic.
Any solution

 

[ard]

Hi,

The Tiny bootloader should work fine with the 18F4550. Are you sure you have used thr rigt clock frequency in your config?

For ready, canned hex files of the Tiny for different pics, see

**broken link removed**

and specifically for the 18F4550, http://code.google.com/p/microcontroller-bootloaders/source/browse/#svn/trunk/pic/18f/18f4550

Hope it works for you!

Regards,

Anand Dhuru

 

[embpic]

Thank you sir i configure it correctly and my compiler gives some warnings as

----------------------------------------------------------------------
Debug build of project `D:\Testing\PIC Bootloader\bootloader_20MHz.mcp' started.
Language tool versions: MPASMWIN.exe v5.50, mplink.exe v4.48, mplib.exe v4.48
Preprocessor symbol `__DEBUG' is defined.
Mon Apr 07 11:40:42 2014
----------------------------------------------------------------------
Make: The target "D:\Testing\PIC Bootloader\BOOTLOADER.o" is out of date.
Executing: "C:\Program Files (x86)\Microchip\MPASM Suite\MPASMWIN.exe" /q /p18F4550 "BOOTLOADER.ASM" /l"BOOTLOADER.lst" /e"BOOTLOADER.err" /o"BOOTLOADER.o" /d__DEBUG=1
Warning[205] D:\TESTING\PIC BOOTLOADER\BOOTLOADER.ASM 1 : Found directive in column 1. (radix)
Warning[230] D:\TESTING\PIC BOOTLOADER\BOOTLOADER.ASM 20 : __CONFIG has been deprecated for PIC18 devices.  Use directive CONFIG.
Warning[230] D:\TESTING\PIC BOOTLOADER\BOOTLOADER.ASM 21 : __CONFIG has been deprecated for PIC18 devices.  Use directive CONFIG.
Warning[230] D:\TESTING\PIC BOOTLOADER\BOOTLOADER.ASM 22 : __CONFIG has been deprecated for PIC18 devices.  Use directive CONFIG.
Warning[230] D:\TESTING\PIC BOOTLOADER\BOOTLOADER.ASM 23 : __CONFIG has been deprecated for PIC18 devices.  Use directive CONFIG.
Warning[230] D:\TESTING\PIC BOOTLOADER\BOOTLOADER.ASM 24 : __CONFIG has been deprecated for PIC18 devices.  Use directive CONFIG.
Warning[230] D:\TESTING\PIC BOOTLOADER\BOOTLOADER.ASM 25 : __CONFIG has been deprecated for PIC18 devices.  Use directive CONFIG.
Warning[230] D:\TESTING\PIC BOOTLOADER\BOOTLOADER.ASM 26 : __CONFIG has been deprecated for PIC18 devices.  Use directive CONFIG.
Warning[230] D:\TESTING\PIC BOOTLOADER\BOOTLOADER.ASM 27 : __CONFIG has been deprecated for PIC18 devices.  Use directive CONFIG.
Warning[230] D:\TESTING\PIC BOOTLOADER\BOOTLOADER.ASM 28 : __CONFIG has been deprecated for PIC18 devices.  Use directive CONFIG.
Warning[230] D:\TESTING\PIC BOOTLOADER\BOOTLOADER.ASM 29 : __CONFIG has been deprecated for PIC18 devices.  Use directive CONFIG.
Warning[230] D:\TESTING\PIC BOOTLOADER\BOOTLOADER.ASM 30 : __CONFIG has been deprecated for PIC18 devices.  Use directive CONFIG.
Warning[230] D:\TESTING\PIC BOOTLOADER\BOOTLOADER.ASM 31 : __CONFIG has been deprecated for PIC18 devices.  Use directive CONFIG.
Make: The target "D:\Testing\PIC Bootloader\bootloader_20MHz.cof" is out of date.
Executing: "C:\Program Files (x86)\Microchip\MPASM Suite\mplink.exe" /p18F4550 "C:\Program Files (x86)\Microchip\MPASM Suite\LKR\18f4550_g.lkr" "BOOTLOADER.o" /u_DEBUG /z__MPLAB_BUILD=1 /z__MPLAB_DEBUG=1 /o"bootloader_20MHz.cof" /M"bootloader_20MHz.map" /W
MPLINK 4.48, Linker
Device Database Version 1.12
Copyright (c) 1998-2011 Microchip Technology Inc.
Errors    : 0

MP2HEX 4.48, COFF to HEX File Converter
Copyright (c) 1998-2011 Microchip Technology Inc.
Errors    : 0

Loaded D:\Testing\PIC Bootloader\bootloader_20MHz.cof.
----------------------------------------------------------------------
Debug build of project `D:\Testing\PIC Bootloader\bootloader_20MHz.mcp' succeeded.
Language tool versions: MPASMWIN.exe v5.50, mplink.exe v4.48, mplib.exe v4.48
Preprocessor symbol `__DEBUG' is defined.
Mon Apr 07 11:40:43 2014
----------------------------------------------------------------------
BUILD SUCCEEDED

 

[embpic]

yes it works if i ignores the warnings it works.

 

[kushal nandanwar]

Hello sir ,

can you provide me circuit diagram for boot loader you are using .