SerProg

A serial programming tool for microcontroller.

Reference project

• SAME54BOOT

  Bootloader for Microchip SAME54 series MCU (ARM Cortex-M4F)

• NuM487BOOT

  Bootloader for Nuvoton M480 series MCU (ARM Cortex-M4F)

• AuxMCUboot

  Bootloader for auxiliary MCU (ATmega16U4). The main function is to convert USB-UART protocol.

Download

You can install this package from PyPI using pip. Simply run the following command:

pip install serprog

Usage

usage: serprog prog [-h] [-d DEVICE] -p PORT [-f FLASH_FILE] [-ef EXT_FLASH_FILE] [-e EEPROM_FILE] [-flashboot]

options:
  -h, --help            show this help message and exit
  -d DEVICE, --decice DEVICE
                        The name or number of the device type to be programmed. Can see available device type by
                        subcommand print-device-list.
  -p PORT, --port PORT  The serial port which program burn the device.
  -f FLASH_FILE, --flash FLASH_FILE
                        Set binary file which program to flash.
  -ef EXT_FLASH_FILE, --extflash EXT_FLASH_FILE
                        Set binary file which program to externel flash.
  -e EEPROM_FILE, --eeprom EEPROM_FILE
                        Set binary file which program to eeprom.
  -flashboot, --extflash_boot
                        Program from externel flash to internel flash.

• [Example]: program the specified image file (.hex) into the MCU's internal flash.

  serprog prog -p COM1 -f image.hex

• [Example]: program the specified image file (.hex) into the development board's NOR flash.

  serprog prog -p COM1 -ef image.hex

Overview

Boot scheme

• Hardware scheme
  
• Software scheme
  

Bootloader Protocol

Finite State Machine

Communication handshake

• Programming to internal flash
  
• Programming to SPI NOR flash (Managed by LittleFS)
  

Communication commands

Flowchart