UPDI Programming an ATmega4808 

Really nice video! Thank you for showing how easy it is! Hope you can make a video on the micro updi programmer board as well. Feels like it should be easy with that one also. You got another subscriber! 😀

Great, clear concise, well explained and easy to follow. Thanks for taking the time and effort to produce the video :)

Beautiful explanation. Thank you sir for the great tutorial. It worked the first time. It's fantastic. I didn't know what to do until I found your video. I have an Atmega 4809, but it's actually the same. Keep going.

Great tutorial, thanks for added all the necessary inks to the description. I have been looking for a cheap 328P replacement due to the chip shortage, this seems to fit the bill.

Thank you for sharing with us how to make a UPDI programmer. I’m getting into some of the new attiny lineup models.but now seeing this chip. I might have a go at the 4808 in time.

Very informative and obviously, thanks to your video, easier then expected.

Just what I was hoping to find. Thank you!

Oh, why is there so little activity on such a good channel? Seems like youtube didn't recommend your videos even to me, although it suits my interests and searches perfectly

Excellent explaination sir

Thanks for a clear explanation of this. I used the microupdi board you mention towards the end of your vid, and whilst it worked initially, my pro micro board is no longer recognised by the Arduino IDE, so can't upload the firmware. More research req'd :) :)

Thank you for this informative Video. Well explained. Merci!

Thanks for your time

Fixed my issue, just had to use avrdude. This all gets a little confusing because most people use this for the ATTINY processors and assume an unlocked state or download a bootloader. It just wasn't clear to me initially that avrdude was included in arduino or how to access it initially. Also the pins dont match up for the 40 pin 4809? idk im looking into it (probably just missed a paragraph somewhere again)

is the 19uf capcitor's value critical? If it's much larger say 100uF (which I have) will that work? Thanks for a great vid

Beyond loading sketches, can this UPDI Programmer be used to set fuses and Lock bits? I have a need to lock an Arduino Nano Every but don't have access via AVRDUDESS.

Hello I havwe a question does the AVDD goes to 3.3v and ground to ground for that one pair same as the VDD and ground?

Really nice, is it possible to program AVR128DB64 in the same way? Plz, Only issue is i cannot find AVR128DB64 in Megacorex List, Please support. Thanks

Hey, I am working on a small project that requires this chip, but I can't find it anywhere would you be able to provide a link to where you bought it? If not, would all the libraries and devices you used work to program an ATmega328P?

is there a smaller micro that can be used for the UPDI Programmer?

Is it possible to program any ".hex" file using this? I don't know about Arduino, is it possible to load a hex file and then upload it?

amazing !! where can I buy the testing adapter please ?

@KakushinAU , in the same way I tried using Arduino Uno for ATtiuny402 but I got following errors, kindly help. Sketch uses 382 bytes (9%) of program storage space. Maximum is 4096 bytes. Global variables use 10 bytes (3%) of dynamic memory, leaving 246 bytes for local variables. Maximum is 256 bytes. "C:\Users\EMBEDDED\AppData\Local\Arduino15\packages\DxCore\tools\avrdude\6.3.0-arduino17or18/bin/avrdude" "-CC:\Users\EMBEDDED\AppData\Local\Arduino15\packages\megaTinyCore\hardware\megaavr\2.6.8/avrdude.conf" -v -pattiny402 -cjtag2updi -PCOM11 -b115200 "-Ufuse0:w:0b00000000:m" "-Ufuse2:w:0x01:m" "-Ufuse5:w:0b11000101:m" "-Ufuse6:w:0x04:m" "-Ufuse7:w:0x00:m" "-Ufuse8:w:0x00:m" "-Uflash:w:C:\Users\EMBEDDED\AppData\Local\Temp\arduino\sketches\FF2CC76A97946CAB7A2A0FEA86428253/sketch_jul12a.ino.hex:i" avrdude: Version 6.3-20201216 Copyright (c) 2000-2005 Brian Dean, www.bdmicro.com/ Copyright (c) 2007-2014 Joerg Wunsch System wide configuration file is "C:\Users\EMBEDDED\AppData\Local\Arduino15\packages\megaTinyCore\hardware\megaavr\2.6.8/avrdude.conf" Using Port : COM11 Using Programmer : jtag2updi Overriding Baud Rate : 115200 JTAG ICE mkII sign-on message: Communications protocol version: 1 M_MCU: boot-loader FW version: 1 firmware version: 6.00 hardware version: 1 S_MCU: boot-loader FW version: 1 firmware version: 6.00 hardware version: 1 Serial number: 00:00:00:00:00:00 Device ID: JTAGICE mkII AVR Part : ATtiny402 Chip Erase delay : 0 us PAGEL : P00 BS2 : P00 RESET disposition : dedicated RETRY pulse : SCK serial program mode : yes parallel program mode : yes Timeout : 0 StabDelay : 0 CmdexeDelay : 0 SyncLoops : 0 ByteDelay : 0 PollIndex : 0 PollValue : 0x00 Memory Detail : Block Poll Page Polled Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- --------- signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00 prodsig 0 0 0 0 no 61 61 0 0 0 0x00 0x00 fuses 0 0 0 0 no 9 10 0 0 0 0x00 0x00 fuse0 0 0 0 0 no 1 0 0 0 0 0x00 0x00 fuse1 0 0 0 0 no 1 0 0 0 0 0x00 0x00 fuse2 0 0 0 0 no 1 0 0 0 0 0x00 0x00 fuse4 0 0 0 0 no 1 0 0 0 0 0x00 0x00 fuse5 0 0 0 0 no 1 0 0 0 0 0x00 0x00 fuse6 0 0 0 0 no 1 0 0 0 0 0x00 0x00 fuse7 0 0 0 0 no 1 0 0 0 0 0x00 0x00 fuse8 0 0 0 0 no 1 0 0 0 0 0x00 0x00 lock 0 0 0 0 no 1 0 0 0 0 0x00 0x00 data 0 0 0 0 no 0 0 0 0 0 0x00 0x00 usersig 0 0 0 0 no 32 32 0 0 0 0x00 0x00 flash 0 0 0 0 no 4096 64 0 0 0 0x00 0x00 eeprom 0 0 0 0 no 128 32 0 0 0 0x00 0x00 Programmer Type : JTAGMKII_PDI Description : JTAGv2 to UPDI bridge M_MCU hardware version: 1 M_MCU firmware version: 6.00 S_MCU hardware version: 1 S_MCU firmware version: 6.00 Serial number: 00:00:00:00:00:00 Vtarget : 5.0 V avrdude: jtagmkII_initialize(): Cannot locate "flash" and "boot" memories in description avrdude: AVR device initialized and ready to accept instructions Reading | avrdude: jtagmkII_program_enable(): bad response to enter progmode command: RSP_NO_TARGET_POWER avrdude: jtagmkII_program_enable(): bad response to enter progmode command: RSP_NO_TARGET_POWER avrdude: jtagmkII_read_byte(): bad response to read memory command: RSP_ILLEGAL_MCU_STATE avr_read(): error reading address 0x0000 read operation not supported for memory "signature" avrdude: error reading signature data for part "ATtiny402", rc=-2 avrdude: error reading signature data, rc=-2 avrdude: jtagmkII_program_disable(): bad response to leave progmode command: RSP_NO_TARGET_POWER avrdude done. Thank you. Failed programming: uploading error: exit status 1