ASMboot

ASMboot

Small Arduino UNO/ATmega328/P bootloader with full optiboot functionality (https://github.com/Optiboot/optiboot) written in assembler

'ready to burn'

256 words/512 bytes of FLASH (minimum size on ATmega328/P)

ASMboot features some extras:

• read/write EEPROM
• auto increment address
• read SIGNATURE from MCU
• read/write LOCK bits
• read FUSES
• read oscillator calibration byte
• leave MCUSR reset status in R2
• WRITE_FLASH_PAGE function for user application

'ASMboot_328_16' is for ATmega328/P running on 5,0 V at 16 MHz communicating with 115.200 baud

'ASMboot_328_8' is for ATmega328/P running on 3,3 V at 8 MHz communicating with 57.600 baud

Higher baud rates as listed (no speed-up on FTDI-devices)

Easy to port to ATmega48/88/168/P