Difference between revisions of "DuPAL"
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Optiboot | Optiboot | ||
| − | + | # https://github.com/Optiboot/optiboot | |
| − | + | ||
| − | + | # 328P uses 115200? | |
| − | + | # a few use 57600 but not the one we need :( | |
| − | + | # wget https://github.com/Optiboot/optiboot/releases/download/v8.0/Optiboot-8.0.zip | |
| − | + | ||
| − | + | git clone https://github.com/Optiboot/optiboot.git | |
| − | + | cd optiboot | |
| − | + | git checkout -b v8.0 v8.0 | |
| + | cd bootloaders/optiboot | ||
| + | make atmega328 AVR_FREQ=20000000L LED_START_FLASHES=8 BAUD_RATE=57600 | ||
| + | |||
| + | Flash optiboot. Example CLI to use ISP header, but can also put into tl866 etc: | ||
| + | |||
avrdude -c dragon_isp -P usb \ | avrdude -c dragon_isp -P usb \ | ||
-p atmega328p -e -u -U efuse:w:0xFD:m -U hfuse:w:0xDE:m \ | -p atmega328p -e -u -U efuse:w:0xFD:m -U hfuse:w:0xDE:m \ | ||
-U lfuse:w:0xFF:m -U flash:w:optiboot_atmega328.hex | -U lfuse:w:0xFF:m -U flash:w:optiboot_atmega328.hex | ||
Revision as of 05:50, 21 May 2022
WIP
Pre-compiled: https://proghq.org/media/dupal/
Building
Optiboot
# https://github.com/Optiboot/optiboot # 328P uses 115200? # a few use 57600 but not the one we need :( # wget https://github.com/Optiboot/optiboot/releases/download/v8.0/Optiboot-8.0.zip git clone https://github.com/Optiboot/optiboot.git cd optiboot git checkout -b v8.0 v8.0 cd bootloaders/optiboot make atmega328 AVR_FREQ=20000000L LED_START_FLASHES=8 BAUD_RATE=57600
Flash optiboot. Example CLI to use ISP header, but can also put into tl866 etc:
avrdude -c dragon_isp -P usb \ -p atmega328p -e -u -U efuse:w:0xFD:m -U hfuse:w:0xDE:m \ -U lfuse:w:0xFF:m -U flash:w:optiboot_atmega328.hex
