Might be interesting. I will try to maybe get it compiled on the chip once I manage to sort out my gcc-avr problems

Just changed a couple things in the make file. USE_LED set to 1, CS pin changed, all typical. but when doing 'make' in command line it gets to the .text part and comes up with an error 1.
here is the output
rm -rf *.o avr_boot.elf *.eps *.bak *.a *.bin rm -rf pff/src/*.o uart/*.o rm -rf *.lst *.map rm -rf avr_boot.hex avr-gcc -gdwarf-2 -Wall -Os -mcall-prologues -ffunction-sections -fdata-sections -mmcu=atmega1284p -std=c99 -DBOOT_ADR=0x1F000 -DF_CPU=16000000 -DUSE_LED=1 -DUSE_UART=0 -DCS_PIN=4 -DVARIANT_1284P=0 -c -o main.o main.c avr-gcc -gdwarf-2 -Wall -Os -mcall-prologues -ffunction-sections -fdata-sections -mmcu=atmega1284p -std=c99 -DBOOT_ADR=0x1F000 -DF_CPU=16000000 -DUSE_LED=1 -DUSE_UART=0 -DCS_PIN=4 -DVARIANT_1284P=0 -c -o pff/src/pff.o pff/src/pff. c avr-gcc -gdwarf-2 -Wall -Os -mcall-prologues -ffunction-sections -fdata-sections -mmcu=atmega1284p -std=c99 -DBOOT_ADR=0x1F000 -DF_CPU=16000000 -DUSE_LED=1 -DUSE_UART=0 -DCS_PIN=4 -DVARIANT_1284P=0 -c -o diskio.o diskio.c avr-gcc -c -mmcu=atmega1284p -I. -x assembler-with-cpp -Wa,-adhlns=asmfunc.lst, -gstabs -DBOOT_ADR=0x1F000 -DF_CPU=16000000 -DUSE_LED=1 -DUSE_UART=0 -DCS_P IN=4 -DVARIANT_1284P=0 asmfunc.S -o asmfunc.o avr-gcc -gdwarf-2 -Wall -Os -mcall-prologues -ffunction-sections -fdata-sections -mmcu=atmega1284p -std=c99 -DBOOT_ADR=0x1F000 -DF_CPU=16000000 -DUSE_LED=1 -DUSE_UART=0 -DCS_PIN=4 -DVARIANT_1284P=0 -Wl,-Map,avr_boot.map -Wl,--gc-sec tions -Wl,--section-start,.text=0x1F000 -o avr_boot.elf main.o pff/src/pff.o di skio.o asmfunc.o c:/winavr-20100110/bin/../lib/gcc/avr/4.3.3/../../../../avr/bin/ld.exe: address 0x2013c of avr_boot.elf section .text is not within region text c:/winavr-20100110/bin/../lib/gcc/avr/4.3.3/../../../../avr/bin/ld.exe: address 0x2013c of avr_boot.elf section .text is not within region text make: *** [avr_boot.elf] Error 1

Any ideas why?

This would give a lot more of visibility to your fantastic project and, moreover, it should make installation of avr_boot a lot easier...as only selecting the target "board" in the menu, the menu option "Burn bootloader" should do the rest.

See: https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5-3rd-party-Hardware-specification

Thanks

I wanted to try to add Arduino IDE support for more boards but ran into compiler errors with most of them.

These results are using the latest avr_boot with avr-gcc 6.1.0 but I've tried 4.8.1-arduino5, 4.9.2-atmel3.5.3-arduino2, and 5.1.0 and can't compile these MCUs with any of them. All the other MCUs I've tried compile fine, including ATmega64.

I modified asmfunc.S to define the pins as shown at: https://github.com/per1234/avr_boot/commit/7a4349fe525447cb3e338f00601b5dae8e907686

All makefile parameters other than MCU_TARGET and BOOT_ADR were left at the original values.

Any ideas? These are the last low hanging fruit for Arduino IDE support I'm aware of since they have a large enough boot size and established pin mappings(in the case of ATmega32/A, already included in the package).

With:

MCU_TARGET    = atmega64a
BOOT_ADR      = 0xF000

I get:

rm -rf *.o avr_boot.elf *.eps *.bak *.a *.bin
rm -rf pff/src/*.o uart/*.o
rm -rf *.lst *.map 
rm -rf avr_boot.hex
avr-gcc -gdwarf-2 -Wall -Os -mcall-prologues -ffunction-sections -fdata-sections -mmcu=atmega64a -std=c99 -DBOOT_ADR=0xF000 -DF_CPU=16000000   -DUSE_LED=0  -DUSE_UART=0  -DCS_PIN=4  -DVARIANT_1284P=0    -c -o main.o main.c
main.c: In function 'get_mcusr':
main.c:41:175: error: 'MCUSR' undeclared (first use in this function)
 uint8_t mcusr_mirror __attribute__ ((section (".noinit")));void get_mcusr(void) __attribute__((naked)) __attribute__((section(".init3")));void get_mcusr(void){mcusr_mirror = MCUSR;MCUSR = 0;wdt_disable();}
                                                                                                                                                                               ^~~~~
main.c:41:175: note: each undeclared identifier is reported only once for each function it appears in
make: *** [main.o] Error 1

With:

MCU_TARGET    = atmega128
BOOT_ADR      = 0x1F000

I get:

rm -rf *.o avr_boot.elf *.eps *.bak *.a *.bin
rm -rf pff/src/*.o uart/*.o
rm -rf *.lst *.map 
rm -rf avr_boot.hex
avr-gcc -gdwarf-2 -Wall -Os -mcall-prologues -ffunction-sections -fdata-sections -mmcu=atmega128 -std=c99 -DBOOT_ADR=0x1F000 -DF_CPU=16000000   -DUSE_LED=0  -DUSE_UART=0  -DCS_PIN=4  -DVARIANT_1284P=0    -c -o main.o main.c
main.c: In function 'get_mcusr':
main.c:41:175: error: attempt to use poisoned "MCUSR"
 uint8_t mcusr_mirror __attribute__ ((section (".noinit")));void get_mcusr(void) __attribute__((naked)) __attribute__((section(".init3")));void get_mcusr(void){mcusr_mirror = MCUSR;MCUSR = 0;wdt_disable();}
                                                                                                                                                                               ^
main.c:41:175: error: 'MCUSR' undeclared (first use in this function)
 uint8_t mcusr_mirror __attribute__ ((section (".noinit")));void get_mcusr(void) __attribute__((naked)) __attribute__((section(".init3")));void get_mcusr(void){mcusr_mirror = MCUSR;MCUSR = 0;wdt_disable();}
                                                                                                                                                                               ^~~~~
main.c:41:175: note: each undeclared identifier is reported only once for each function it appears in
main.c:41:181: error: attempt to use poisoned "MCUSR"
 uint8_t mcusr_mirror __attribute__ ((section (".noinit")));void get_mcusr(void) __attribute__((naked)) __attribute__((section(".init3")));void get_mcusr(void){mcusr_mirror = MCUSR;MCUSR = 0;wdt_disable();}
                                                                                                                                                                                     ^
make: *** [main.o] Error 1

With:

MCU_TARGET    = atmega128a
BOOT_ADR      = 0x1F000

rm -rf *.o avr_boot.elf *.eps *.bak *.a *.bin
rm -rf pff/src/*.o uart/*.o
rm -rf *.lst *.map 
rm -rf avr_boot.hex
avr-gcc -gdwarf-2 -Wall -Os -mcall-prologues -ffunction-sections -fdata-sections -mmcu=atmega128a -std=c99 -DBOOT_ADR=0x1F000 -DF_CPU=16000000   -DUSE_LED=0  -DUSE_UART=0  -DCS_PIN=4  -DVARIANT_1284P=0    -c -o main.o main.c
main.c: In function 'get_mcusr':
main.c:41:175: error: 'MCUSR' undeclared (first use in this function)
 uint8_t mcusr_mirror __attribute__ ((section (".noinit")));void get_mcusr(void) __attribute__((naked)) __attribute__((section(".init3")));void get_mcusr(void){mcusr_mirror = MCUSR;MCUSR = 0;wdt_disable();}
                                                                                                                                                                               ^~~~~
main.c:41:175: note: each undeclared identifier is reported only once for each function it appears in
make: *** [main.o] Error 1

With:

MCU_TARGET    = atmega32
BOOT_ADR      = 0x7000

I get:

rm -rf *.o avr_boot.elf *.eps *.bak *.a *.bin
rm -rf pff/src/*.o uart/*.o
rm -rf *.lst *.map 
rm -rf avr_boot.hex
avr-gcc -gdwarf-2 -Wall -Os -mcall-prologues -ffunction-sections -fdata-sections -mmcu=atmega32 -std=c99 -DBOOT_ADR=0x7000 -DF_CPU=16000000   -DUSE_LED=0  -DUSE_UART=0  -DCS_PIN=4  -DVARIANT_1284P=0    -c -o main.o main.c
avr-gcc -gdwarf-2 -Wall -Os -mcall-prologues -ffunction-sections -fdata-sections -mmcu=atmega32 -std=c99 -DBOOT_ADR=0x7000 -DF_CPU=16000000   -DUSE_LED=0  -DUSE_UART=0  -DCS_PIN=4  -DVARIANT_1284P=0    -c -o pff/src/pff.o pff/src/pff.c
pff/src/pff.c: In function 'get_fat':
pff/src/pff.c:379:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
   return LD_WORD(buf);
   ^~~~~~
pff/src/pff.c:384:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
   return LD_DWORD(buf) & 0x0FFFFFFF;
   ^~~~~~
pff/src/pff.c: In function 'pf_mount':
pff/src/pff.c:775:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
     bsect = LD_DWORD(&buf[8]); /* Partition offset in LBA */
     ^~~~~
avr-gcc -gdwarf-2 -Wall -Os -mcall-prologues -ffunction-sections -fdata-sections -mmcu=atmega32 -std=c99 -DBOOT_ADR=0x7000 -DF_CPU=16000000   -DUSE_LED=0  -DUSE_UART=0  -DCS_PIN=4  -DVARIANT_1284P=0    -c -o diskio.o diskio.c
avr-gcc -c -mmcu=atmega32 -I. -x assembler-with-cpp -Wa,-adhlns=asmfunc.lst,-gstabs -DBOOT_ADR=0x7000 -DF_CPU=16000000   -DUSE_LED=0  -DUSE_UART=0  -DCS_PIN=4  -DVARIANT_1284P=0  asmfunc.S -o asmfunc.o
avr-gcc -gdwarf-2 -Wall -Os -mcall-prologues -ffunction-sections -fdata-sections -mmcu=atmega32 -std=c99 -DBOOT_ADR=0x7000 -DF_CPU=16000000   -DUSE_LED=0  -DUSE_UART=0  -DCS_PIN=4  -DVARIANT_1284P=0  -Wl,-Map,avr_boot.map -Wl,--gc-sections -Wl,--section-start,.text=0x7000 -o avr_boot.elf main.o pff/src/pff.o diskio.o asmfunc.o 
asmfunc.o: In function `flash_erase':
asmfunc.S:366: undefined reference to `SPMCSR'
asmfunc.S:366: undefined reference to `SPMCSR'
asmfunc.S:366: undefined reference to `SPMCSR'
asmfunc.o: In function `flash_write':
asmfunc.S:399: undefined reference to `SPMCSR'
asmfunc.S:399: undefined reference to `SPMCSR'
asmfunc.o:asmfunc.S:399: more undefined references to `SPMCSR' follow
collect2.exe: error: ld returned 1 exit status
make: *** [avr_boot.elf] Error 1

With:

MCU_TARGET    = atmega32a
BOOT_ADR      = 0x7000

I get:

rm -rf *.o avr_boot.elf *.eps *.bak *.a *.bin
rm -rf pff/src/*.o uart/*.o
rm -rf *.lst *.map 
rm -rf avr_boot.hex
avr-gcc -gdwarf-2 -Wall -Os -mcall-prologues -ffunction-sections -fdata-sections -mmcu=atmega32a -std=c99 -DBOOT_ADR=0x7000 -DF_CPU=16000000   -DUSE_LED=0  -DUSE_UART=0  -DCS_PIN=4  -DVARIANT_1284P=0    -c -o main.o main.c
main.c: In function 'get_mcusr':
main.c:41:175: error: 'MCUSR' undeclared (first use in this function)
 uint8_t mcusr_mirror __attribute__ ((section (".noinit")));void get_mcusr(void) __attribute__((naked)) __attribute__((section(".init3")));void get_mcusr(void){mcusr_mirror = MCUSR;MCUSR = 0;wdt_disable();}
                                                                                                                                                                               ^~~~~
main.c:41:175: note: each undeclared identifier is reported only once for each function it appears in
make: *** [main.o] Error 1

Hi, on my board to enable the SD card, i need to set low the digital pin 4 (PD4)
there is a way to do this before the bootloader try to access the sd?
Second question, can you provide the configuration of the Makefile for the atmega328p?

Thanks man, i really appreciate your work 👍

I am trying to reset the micro with a WDT in order to load the new code into memory, without physically having to push reset. The WDT reset method works fine on the optiboot bootloader, but gets wildly stuck with avr_boot. (LED flashes very fast) I installed the 328p bootloader through the IDE, so I'm not sure if that build includes the WDT fix or not.

I'll build it from source and see if that helps.

Hello,

I´m having the issue that the bootloader cannot mount the sd card.

fresult = pf_mount(&Fatfs); /* Initialize file system */ if (fresult != FR_OK) { /* File System could not be mounted */
fresult is FR_NOT_READY

Here are my def;
MCU_TARGET = atmega1284p BOOT_ADR = 0x1F000 F_CPU = 14745600 SD_CS_PORT = PORTB SD_CS_DDR = DDRB SD_CS_BIT = 1

is there anything else i have to check oder edit? Does anyone else have the same error?
With the arduino cardinfo example program everything works fine, here is also the infos that the cardinfo program outputs

Initializing SD card...Wiring is correct and a card is present.

Card type: SD2
Clusters: 61268
Blocks x Cluster: 64
Total Blocks: 3921152

Volume type is: FAT16
Volume size (Kb): 1960576
Volume size (Mb): 1914
Volume size (Gb): 1.87

Files found on the card (name, date and size in bytes):
SYSTEM1/ 2019-02-08 09:41:40
INDEXE1 2019-02-08 09:41:40 76
WPSETT~1.DAT 2019-02-08 09:41:42 12
FIRMWARE.BIN 2019-02-18 13:54:38 61112`

How about supporting SAMD21/Arduino Zero?! Or does anyone know of a bootloader for this controller that is able to flash/update via sdcard?!

details
(1) using a UNO real not copy
(2) setup installation of avr_boot by Zevero Version 1.3.0
(3) Operating system Windows 10
(4) Arduino IDE 1.8.10
(5) installation method (as per instructions ##installation)

Issues
(1) create folder and save Arduion sketch
(2) export compiled binary file from IDE to folder
(3) rename binary file from select XXXXX.ino.arduino_standard HEX file to XXXXX HEX file
(4) create BIN file as per MakeBin via several different downloaded programs (1.avr_boot-gh-pages and the other one " Arduino Hex2Bin Converter ( end result same from all) compared via NotePad++ and renaming as FIRMWARE.BIN
(5) NOW this is where the question is raised (not sure if the size is the problem??)
(6) carry out all of the above on a sketch size no more than 12KB and all works great
(7) carry out al of the above on the same sketch that has more info size 17 KB. and I get nothing.(does not upload)
(8) end result is to control a DMD screen by arduino
(9) NO PROBLEMS when I use USB to upload the sketch direct from the IDE
(10) I can upload the initial portion of the sketch which is straight forward simple
when I add the next step of the loop which has strings and calculation in it (it does not work)

can any person shine some light on the problem
Note: I would class myself as some Knowledge but still very green
Thank you in advance
kevenG

command:

make MCU_TARGET=atmega1280 BOOT_ADR=0x1F000 F_CPU=8000000 SD_CS_PORT=PORTH SD_CS_DDR=DDRH SD_CS_BIT=5 USE_LED=0 USE_UART=0 ADDED_CFLAGS="-Wextra -Wno-strict-aliasing" TARGET=$(MCU_TARGET)_cs8_$(F_CPU)L

avr-gcc 6.0.1 error message:

asmfunc.S: Assembler messages:
asmfunc.S:86: Error: operand out of range: 225
asmfunc.S:124: Error: operand out of range: 226
asmfunc.S:138: Error: operand out of range: 226

avr-gcc 4.9.2-atmel3.5.3-arduino2 message:

asmfunc.S: Assembler messages:
asmfunc.S:86: Error: number must be positive and less than 32
asmfunc.S:124: Error: number must be positive and less than 32
asmfunc.S:138: Error: number must be positive and less than 32

This was trying to build for SD CS Arduino pin 8 but I get similar errors for any bit on any port above G.

I haven't had much luck searching for information on this. The best I've found is http://www.nongnu.org/avr-libc/user-manual/group__avr__sfr__notes.html but I've tried every combination of the fixes listed and still couldn't compile but I'm just basically working on it randomly since I don't really understand what the problem is.

Hi all! I have a project with an Atmega328P and I am using the hardware SPI pins for a different purpose. Is it possible to use non-standard pins to flash a new bootloader from a SD card?

Hi zevero,

I have been working on a project and would like to be able to flash my 1284P from SD card for updates, I have loaded your avr_boot, firstly i am unable to select standard pinout as it will not compile, so i left it set as avr-developers.com, this must be different from standard as it my program although runs and loads does not run as it should (i was using the mightycore bootloader before), if i reload that, the code runs fine.
Using avr_boot, I created BIN file as instructed and tried to load it , i moved my SD card CS to pin 10 (as i thought you should not use pin 4 on the 1284P the SS pin as a CS)
However the hex file does not load, it just boots up as before with program not operating as it should, when i reload Mighty Core (standard pin), my project runs fine. am i doing something wrong or is there another library to use? i tried downloading the Mighty 1284P standard as in your option selection, i just get a boards.txt error.

here is a copy of the error if i select standard Mighty1284P

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0xc pc=0x4a75b7]

goroutine 1 [running]:
panic(0x54ef00, 0x12080030)
/home/jenkins/go/src/runtime/panic.go:500 +0x331
arduino.cc/builder.(*SetupBuildProperties).Run(0x614ef0, 0x120ce000, 0x0, 0x0)
/home/jenkins/workspace/arduino-builder-all-cross/src/arduino.cc/builder/setup_build_properties.go:84 +0xfa7
arduino.cc/builder.(*ContainerSetupHardwareToolsLibsSketchAndProps).Run(0x614ef0, 0x120ce000, 0x0, 0x0)
/home/jenkins/workspace/arduino-builder-all-cross/src/arduino.cc/builder/container_setup.go:59 +0x2b6
arduino.cc/builder.runCommands(0x120ce000, 0x12089dc0, 0x3, 0x3, 0x1, 0x0, 0x0)
/home/jenkins/workspace/arduino-builder-all-cross/src/arduino.cc/builder/builder.go:191 +0xe2
arduino.cc/builder.(*ParseHardwareAndDumpBuildProperties).Run(0x12089dec, 0x120ce000, 0x0, 0x0)
/home/jenkins/workspace/arduino-builder-all-cross/src/arduino.cc/builder/builder.go:180 +0xdc
arduino.cc/builder.RunParseHardwareAndDumpBuildProperties(0x120ce000, 0x0, 0x0)
/home/jenkins/workspace/arduino-builder-all-cross/src/arduino.cc/builder/builder.go:227 +0x35
main.main()
/home/jenkins/workspace/arduino-builder-all-cross/src/arduino.cc/arduino-builder/main.go:329 +0xf78
C:\Program Files (x86)\Arduino\arduino-builder returned 2

Error compiling for board ATmega1284/P.

Kind Regards

Jono

Hello Falks,

I was trying to use this with my ATMega1284P, however first run going smoothly which loads the bin file in my SD card, for some reason subsequent resets does not kick start the bootloader and therefore does not load any more bin files from the SD card.

Is this something to do with the Boot Reset Vector?

Any idea how can I continue to use the bootloader so that any time a FIRMWARE.BIN on SD card will get loaded upon reset (and from the program I can delete the BIN file)

To note, I was using the boards manager installation on Arduino 1.8.1

Cheers,
Las

Hello guys i´ve been working on a embedded project that switches modules of different functions, but the code on the mega is too large to integrat all of modules functions and to to write it again, so i´ve been wondering if i can set the bootloader to determine what module the system is using so it can change between the .hex files store on the SD. Whet do you guys think?

Hello, I want to flash this bootloader to my Uno R3 but I only have a CH341 programmer that can be used with this project: https://github.com/Trel725/chavrprog to flash hex files onto it.

Which is the correct hex file for the plain old Uno R3?

Well, sorry about this question, but I´m realy stucked.

I´m trying to manual installation (after a successful Arduino IDE install). Manual installation necessary cause I´m trying to customize the bootloader for arduboy.

I´m using Arduino Pro Micro 32u4

Here is my makefile ...

MCU_TARGET = atmega32u4
BOOT_ADR = 0x3800
F_CPU = 16000000
SD_CS_PORT = PORTB # Data Register of the SD CS pin
SD_CS_DDR = DDRB # Data Direction Register of the SD CS pin
SD_CS_BIT = 3 # Bit of the SD CS pin
USE_LED = 0 # Debug with two (defined in asmfunc.S)
USE_UART = 0 # Debug on Serial. 0 ...

I have a lot of doubts here, so :

BOOT_ADDR - Using http://eleccelerator.com/fusecalc/fusecalc.php?chip=atmega32u4&LOW=42&HIGH=99&EXTENDED=FF&LOCKBIT=FF

SD_CS - My CS port is 10, so after reading
https://www.arduino.cc/en/Reference/PortManipulation
I supposed the correct config for makefile is the values describe before

FUSES: I dont know what is that, sorry. Use default values for HIGH
-U hfuse:w:0x99:m

Avrdude works OK with premade images from https://zevero.github.io/avr_boot/package_zevero_avr_boot_index.json

Any help is appreciated

Thanks

We are looking for someone looking deeper into ATmega2560 support!

This is copied from @per1234 in Issue #1

I managed to get the ATmega2560 to load a program from the SD card but it's far from ideal. I discovered the program will run under these circumstances:

• Set high fuse to DB instead of DA to disable the Boot Reset vector(BOOTRST=1).
  • The standard Arduino boards.txt enables the Boot Reset vector(BOOTRST=0) as does your hfuse setting in README.md.
• Use Atmel AVRISP mkII to Burn Bootloader instead of USPasp.
  • I normally use my USBasp due to the mkII not working correctly for Burn Bootloader with current versions of Arduino IDE for me without some ugly workarounds.
• Press the reset button after powering the board with the SD card attached.
  • The program has been loaded into the MCU flash but doesn't run until the reset button is pressed. With the other boards the program begins to run immediately after it has been loaded from the SD card.

After the program has been loaded from the SD no other programs will load from the SD card until the bootloader is burned again. If I change any of the above conditions it doesn't work. With all of these conditions it works consistently. I have no idea what this means, it's a bit more advanced than my current skill level.

First this project is amazing thanks,
Can see a big warning sign saying not compatible with AVR boards.

I have a freetronics Eleven Arduino board that I would really like to get this running on,
This freetonics board is usually programmed from Arduino IDE as a a Uno board.
The processor is ATmega328P. All ATmega328P chips from microchip seem to be AVR?

Had no problem installing into Arduino IDE. When trying to push into board would not burn boot loader directly,
Can see I need a ISP which I will pick up tomorrow and try again.

Should this work with a Standard Arduino Uno board? Any info you can provide would be amazing. Thanks.

Currently not supported. I'm hoping to add this functionality myself here soon. Any Help is welcome. I'm going to Look at the Optiboot code and see what I can scavenge out of it to fill the gap. any issues I might want to know about before digging in? Will start a new fork soon and submit a pull request when i know it works. Thanks.

Hello, first off, love the project.

I have a custom wrapper around avr dude for flashing all my projects, which I use to flash bootloaders and programs.

I needed to compile a version of this since I use a different pin for sd card, so I do that and then flash the bootloader.

When I am making updates to the program, I use export compiled binary and then the avr-objcopy.

However, the export compiled binary gives two files using your board manager, one labeled with bootloader which is larger.

Which file am I meant to take, or does it not matter?

Hi for my project I have the CS Line wired to Pin 14 for the SD Card. I'm a bit of a newbie here to changing bootloaders. Can some one give me a clue to exactly what needs changing to make this work. The CPU is a 328p 3,3v Device.
Thanks!