bootloader

BootLoader

This project uses kiloboot.asm from kiloboot for building 1kB TFTP Ethernet bootloader for ATmega328P and ENC28J60
Arduino devices will get a sketch via network.

Wine & avrasm2.exe to compile a ASM file to HEX code

wine bin/avrasm2.exe -fI -I <folder_with_inc_files> <your_asm_file> -o <your_hex_file>

Avrdude

gradlew :arduino:ide:burn -Phex=192-168-100-202.hex

Settings

kiloboot.asm has a few lines with placeholders to be able to setup Arduino device in the intranet

• file.bin - sketch file name that bootloader will download from TFTP server
• device.ip - IP address of Arduino device
• server.ip - TFTP server where will be stored all sketches
• gateway.ip - gateway in your network
• subnetmask - subnetmask for devices
• mac.number.0 - 1st octet
• mac.number.1 - 2nd octet
• mac.number.2 - 3rd octet
• mac.number.3 - 4th octet
• mac.number.4 - 5th octet
• mac.number.5 - 6th octet

#define FILENAME "@file.bin@"
#define myIP        @device.ip@
#define serverIP    @server.ip@
#define gatewayIP   @gateway.ip@
#define subnetMask  @subnetmask@
.equ myMAC0 = @mac.number.0@
.equ myMAC1 = @mac.number.1@
.equ myMAC2 = @mac.number.2@
.equ myMAC3 = @mac.number.3@
.equ myMAC4 = @mac.number.4@
.equ myMAC5 = @mac.number.5@