关于 PIC32 固件升级

找了半天终于找到资料  地址设置在这里

https://www.microchip.com/wwwAppNotes/AppNotes.aspx?appnote=en554836

 

里面包括 上位机 通讯协议  配置  还有例子

AN1388

Title:

PIC32 Bootloader

Name:

AN1388

Date:

01/16/2012

Author:

Ganapathi Ramachandra

Description:

This application note describes how to use bootloader to upgrade firmware on PIC32 devices without the need for an external programmer or debugger. The source code consists of following implementations of bootloader, 1) UART 2) USB device based on HID class 3) USB host based on MSD class 4) Ethernet 5) SD card

Keywords:

PIC32, PIC32MX 32-bit MCUs, USB, UART, Ethernet, SD Card, Bootloader

 

<<>>

升级说明文档在这里:

http://ww1.microchip.com/downloads/cn/AppNotes/01388A_CN.pdf

内容如下:

/*************************************************************************
 * Processor-specific object file.  Contains SFR definitions.
 *************************************************************************/
INPUT("processor.o")

/*************************************************************************
 * Processor-specific peripheral libraries are optional
 *************************************************************************/
OPTIONAL("libmchp_peripheral.a")
OPTIONAL("libmchp_peripheral_32MXGENERIC.a")

/*************************************************************************
 * For interrupt vector handling
 *************************************************************************/
PROVIDE(_vector_spacing = 0x00000001);
_ebase_address = 0x9FC01000;

/*************************************************************************
 * Memory Address Equates
 * _RESET_ADDR      -- Reset Vector
 * _BEV_EXCPT_ADDR  -- Boot exception Vector
 * _DBG_EXCPT_ADDR  -- In-circuit Debugging Exception Vector
 * _DBG_CODE_ADDR   -- In-circuit Debug Executive address
 * _DBG_CODE_SIZE   -- In-circuit Debug Executive size
 * _GEN_EXCPT_ADDR  -- General Exception Vector
 *************************************************************************/
_RESET_ADDR              = 0xBFC00000;
_BEV_EXCPT_ADDR          = 0xBFC00380;
_DBG_EXCPT_ADDR          = 0xBFC00480;
_DBG_CODE_ADDR           = 0xBFC02000;
_DBG_CODE_SIZE           = 0xFF0     ;
_GEN_EXCPT_ADDR          = _ebase_address + 0x180;

/*************************************************************************
 * Memory Regions
 *
 * Memory regions without attributes cannot be used for orphaned sections.
 * Only sections specifically assigned to these regions can be allocated
 * into these regions.
 *************************************************************************/
MEMORY
{
  kseg0_program_mem    (rx)  : ORIGIN = 0x9D000000, LENGTH = 0x80000
  kseg0_boot_mem             : ORIGIN = 0x9FC00490, LENGTH = 0x970
  exception_mem              : ORIGIN = 0x9FC01000, LENGTH = 0x1000
  kseg1_boot_mem             : ORIGIN = 0xBFC00000, LENGTH = 0x490
  debug_exec_mem             : ORIGIN = 0xBFC02000, LENGTH = 0xFF0
  config3                    : ORIGIN = 0xBFC02FF0, LENGTH = 0x4
  config2                    : ORIGIN = 0xBFC02FF4, LENGTH = 0x4
  config1                    : ORIGIN = 0xBFC02FF8, LENGTH = 0x4
  config0                    : ORIGIN = 0xBFC02FFC, LENGTH = 0x4
  kseg1_data_mem       (w!x) : ORIGIN = 0xA0000000, LENGTH = 0x8000
  sfrs                       : ORIGIN = 0xBF800000, LENGTH = 0x100000
}

/*************************************************************************
 * Configuration-word sections
 *************************************************************************/
SECTIONS
{
  .config_BFC02FF0 : {
    KEEP(*(.config_BFC02FF0))
  } > config3
  .config_BFC02FF4 : {
    KEEP(*(.config_BFC02FF4))
  } > config2
  .config_BFC02FF8 : {
    KEEP(*(.config_BFC02FF8))
  } > config1
  .config_BFC02FFC : {
    KEEP(*(.config_BFC02FFC))
  } > config0
}