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avr_bootloader:bootloader [2020/03/23 16:40]
admin
avr_bootloader:bootloader [2020/03/23 20:32]
admin [Burning the Bootloader with the AVRdude]
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 ===== Burning the Bootloader ===== ===== Burning the Bootloader =====
  
-Everything about the Arduino ​bootloader ​one can find here:  +If one uses an Atmega328 chip in his Arduino ​or Paperduino project ​one needs to burn a bootloaderThat program allows later for an easy upload of programs. For the Paper-Arduino-Clones we have to burn the Arduino UNO bootloader on our ATmega chip. Depending on the burning device there are a lot of different technics ​to do so.
-[[https://​www.arduino.cc/​en/​Hacking/​Bootloader?​from=Tutorial.Bootloader]]\\ +
-For the Paper-Arduino-Clones we have to burn the bootloader on our ATmega chip. There are differnet ways to do so:+
  
 ---- ----
 ==== Burning the Bootloader with the Arduino IDE ==== ==== Burning the Bootloader with the Arduino IDE ====
 +
 For burning the bootloader on the Paperduino-UNO,​ or on the Paper-Leonardo you need to connect the following pins on your Paperduino-UNO with your ISP programmer (in-system programmer):​ For burning the bootloader on the Paperduino-UNO,​ or on the Paper-Leonardo you need to connect the following pins on your Paperduino-UNO with your ISP programmer (in-system programmer):​
   * 11 - MOSI   * 11 - MOSI
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   * Ground   * Ground
   * + 5V   * + 5V
-After connecting the programmer to your computer select in the Arduino IDE in Tools/​Programmer your programmer and than klick Tools/Burn Bootloader.+After connecting the programmer to your computer select in the Arduino IDE in Tools/​Programmer your programmer and than click Tools/Burn Bootloader.
  
 === ... and an AVR programmer === === ... and an AVR programmer ===
 {{ :​arduino_clones:​isp_adapter.jpg?​direct&​300 |}} {{ :​arduino_clones:​isp_adapter.jpg?​direct&​300 |}}
  
-On the foto you see the ISP programmer with an ISP adapter board. But you could also build your own modified wire like that on the [[http://​arduino.cc/​en/​Hacking/​MiniBootloader|Mini Bootloader project]]. Anyway here are the connection of an original ISP header.+On the photo one sees the ISP programmer with an ISP adapter board. But you could also build your own modified wire like that on the [[http://​arduino.cc/​en/​Hacking/​MiniBootloader|Mini Bootloader project]]. Anyway here are the connection of an original ISP header.
  
 {{:​arduino_clones:​isp-header.jpg?​nolink|}} {{:​arduino_clones:​isp-header.jpg?​nolink|}}
  
-Cause my ISP programmer has a different ​protokoll as the originale ​AVR-ISP programmer I had to modifie ​the programmers.txt file.\\ +Cause my ISP programmer has a different ​protocol than the original ​AVR ISP programmer I had to modifier ​the programmers.txt file.\\ 
-In that folder(on Linux):+In that folder (on Linux):
   /​usr/​share/​arduino/​hardware/​arduino   /​usr/​share/​arduino/​hardware/​arduino
 The third line has to change to: The third line has to change to:
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 === ... and the Paper-USBasp Programmer === === ... and the Paper-USBasp Programmer ===
- +A [[https://​www.fischl.de/​usbasp/​|USBasp]] programmer will be used similar than the AVR ISP programmer, just select the USBasp programmer and burn.
-It is simelar to the AVR ISP programmer, just select the USBasp programmer and burn.+
  
 {{ :​avr_bootloader:​paper_usbasp_1274.jpg?​300 |}} {{ :​avr_bootloader:​paper_usbasp_1274.jpg?​300 |}}
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 === ... and a Paperduino-UNO === === ... and a Paperduino-UNO ===
  
-The Paperduino-UNO was designed for cloneing ​and that's why you can use your Paperduino-UNO ​fot burning bootloder, too. Just load the ArduinoISP ​- in the examples ​on your Paperduino-UNO. After that, **turn off the auto reset by removeing ​the auto reset jumper**. And than connect the pins like that:+The Paperduino-UNO was designed for cloning ​and that's why you can use easiely ​your Paperduino-UNO ​for burning ​the bootloder. Just load the ArduinoISP ​program from the Arduino IDE examples on your Paperduino-UNO. After that, **turn off the auto reset by removing ​the auto reset jumper**. And than connect the pins like that:
   * 13 to 13   * 13 to 13
   * 12 to 12   * 12 to 12
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 === Burning an Atmega328 (without P) === === Burning an Atmega328 (without P) ===
  
-The Atmega328 has a different signature than the Atmega328p (p stands for picoPower). When using the Atmega328 for an Arduino Uno and burn with the IDE one has to change ​the avrdude.conf file. An other possibility is to burn with the avrdude and use -F for sciping the signature check.\\+The Atmega328 ​chip has a different signature than the Atmega328p (p stands for picoPower). When one wants to burn this chip with the IDE the avrdude.conf file has to be changed.\\
 Open the file: Open the file:
-   $ sudo nano /​usr/​share/​arduino/​hardware/​tools/​avrdude.conf+   /​usr/​share/​arduino/​hardware/​tools/​avrdude.conf
 or (depends on the Arduino version): or (depends on the Arduino version):
-   $ sudo nano /​usr/​share/​arduino/​hardware/​tools/​avr/​etc/​avrdude.conf +   /​usr/​share/​arduino/​hardware/​tools/​avr/​etc/​avrdude.conf 
-search ​with control W for the Atmega328p signature:​\\+search for the Atmega328p signature:​\\
    0x1e 0x95 0x0F    0x1e 0x95 0x0F
 and replace it with the Atmega328 signature:​\\ and replace it with the Atmega328 signature:​\\
    0x1e 0x95 0x14    0x1e 0x95 0x14
-Save and close (contr O and contr X)\\ +Now it should be possible to burn the Atmega328 with the Arduino IDE. Don't forget to change it back for the P version of the Atmega chip.
-Now one can burn the Atmega328 with the Arduino IDE.+
  
 ---- ----
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 Go to the folder with the bootloader: Go to the folder with the bootloader:
   $ cd /​usr/​share/​arduino/​hardware/​arduino/​avr/​bootloaders/​optiboot/​   $ cd /​usr/​share/​arduino/​hardware/​arduino/​avr/​bootloaders/​optiboot/​
 +
 +=== Fuse Bits ===
 +In the board.txt file for the Arduino UNO the fuse bits are set like that:
 +  uno.bootloader.low_fuses=0xFF
 +  uno.bootloader.high_fuses=0xDE
 +  uno.bootloader.extended_fuses=0xFD
 +  uno.bootloader.unlock_bits=0x3F
 +  uno.bootloader.lock_bits=0x0F
 +The extended fuse bits settings for the brown-out detection level (BOD) are: 
 +  0xFF (BOD disabled)
 +  0xFC (BOD = 4.3V)
 +  0xFD (BOD = 2.7V)
 +  0xFE (BOD = 1.8V)
 +That is the level where the Arduino resets when underpowered.\\
 +
 +A good manual for calculating the fuse bits one findes here [[https://​www.instructables.com/​id/​How-to-change-fuse-bits-of-AVR-Atmega328p-8bit-mic/​]].
 +
 +=== ... with the Paper-USBasp Programmer ====
 +
 +{{:​avr_bootloader:​paper-usbasp_programming_board.jpg?​400|}}\\
 +
 +For setting the fuse bits one has to type:
 +  $ sudo avrdude -p m328p -c usbasp -P usb -U lfuse:​w:​0xFF:​m -U hfuse:​w:​0xDE:​m -U efuse:​w:​0xFD:​m
 +And for the bootloader:
 +  $ sudo avrdude -p m328p -c usbasp -P usb -U flash:​w:​optiboot_atmega328.hex:​i
 +
  
 === ... with an AVR ISP Programmer ==== === ... with an AVR ISP Programmer ====
  
 For setting the fuse bits one has to type: For setting the fuse bits one has to type:
-  $ sudo avrdude -p m328p -c stk500v2 -P /​dev/​ttyACM0 -U lfuse:​w:​0xFF:​m -U hfuse:​w:​0xDE:​m -U efuse:w:0x05:m+  $ sudo avrdude -p m328p -c stk500v2 -P /​dev/​ttyACM0 -U lfuse:​w:​0xFF:​m -U hfuse:​w:​0xDE:​m -U efuse:w:0xFD:m
 And for the bootloader: And for the bootloader:
   $ sudo avrdude -p m328p -c stk500v2 -P /​dev/​ttyACM0 -U flash:​w:​optiboot_atmega328.hex:​i   $ sudo avrdude -p m328p -c stk500v2 -P /​dev/​ttyACM0 -U flash:​w:​optiboot_atmega328.hex:​i
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 If one has a [[avr_bootloader:​paper-avrisp_mk2|Paper-AVRISP mkII]] one hast to type in the terminal the following. For setting the fuse bits: If one has a [[avr_bootloader:​paper-avrisp_mk2|Paper-AVRISP mkII]] one hast to type in the terminal the following. For setting the fuse bits:
-  $ sudo avrdude -p m328p -c avrispmkII -P usb -U lfuse:​w:​0xFF:​m -U hfuse:​w:​0xDE:​m -U efuse:w:0x05:m+  $ sudo avrdude -p m328p -c avrispmkII -P usb -U lfuse:​w:​0xFF:​m -U hfuse:​w:​0xDE:​m -U efuse:w:0xFD:m
 And for the actual bootloader: And for the actual bootloader:
   $ sudo avrdude -p m328p -c avrispmkII -P usb -U flash:​w:​optiboot_atmega328.hex:​i   $ sudo avrdude -p m328p -c avrispmkII -P usb -U flash:​w:​optiboot_atmega328.hex:​i
 +
 +=== Problem Solving ===
 +To erase all fuse bits one can use the attribute: -e\\
 +or even: -e -F\\
 +Sometimes a specific Baud rate helps, too: -b 19200\\
 +For verbose mode output use: -v\\
  
 === Burning an Atmega328 (without P) == === Burning an Atmega328 (without P) ==
    
-When using an Atmega328 (without p) use "-p m238" instead of "-p m238p"​.\\+When using an Atmega328 (without p) use "-p m238" instead of "-p m238p". An other possibility would be to use sdditionaly -F for skipping the signature check.\\
  
  
 More information one finds at the [[avr_bootloader:​AVRdude|AVRdude]] page.\\ More information one finds at the [[avr_bootloader:​AVRdude|AVRdude]] page.\\
 ---- ----
 +==== Links ====
 +[[https://​www.arduino.cc/​en/​Hacking/​Bootloader?​from=Tutorial.Bootloader]]\\
 +[[https://​www.fischl.de/​usbasp/​]]\\
 +[[https://​www.nongnu.org/​avrdude/​]]\\
 +[[https://​www.ladyada.net/​learn/​avr/​avrdude.html]]\\
  
 +----
 ==== License ==== ==== License ====