how to activate UPDI attiny816

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hi,

 

I want to program attiny816 using Atmel ICE, but I think I need to activate UPDI first using 12v puls, and I would appreciate if anyone can help explaining how to do that.

 

thank you in advance

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AVR beginner

Last Edited: Tue. Nov 7, 2017 - 05:27 PM
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12V pulse is only needed if you disabled UPDI (and the Atmel-ICE cannot generate a 12V pulse). As long as you don't disable (or put GPIO) on the UPDI pin it just works.

:: Morten

 

(yes, I work for Atmel, yes, I do this in my spare time, now stop sending PMs)

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it is a new chip, and I tried to connect it to Atmel ICE. using "6-pin 100-mil connector" I connected :

 

- Pinout 2 ( voltage ) to Attiny816 pin 1 (VDD).

- Pinout 6 (GND) to Attiny816 pin 20 (GND).

- Pinout 1 (TDO) to Attiny816 pin 16 (UPDI).

 

is UPDI by default activated for new chips? 

 

AVR beginner

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Jupp.

 

Have you remebered to provide power to the chip (the Atmel-ICE only senses voltage, it does not provide it)?

:: Morten

 

(yes, I work for Atmel, yes, I do this in my spare time, now stop sending PMs)

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Dear Meolsen,

 

thank you for your support. it worked after supplying power to the chip via another board. for those who might need help like me:

 

- Pinout 2 ( voltage ) to Attiny816 pin 1 (VDD) - both connected to external power 3.3v

- Pinout 6 (GND) to Attiny816 pin 20 (GND).

- Pinout 1 (TDO) to Attiny816 pin 16 (UPDI).

 

 

Now, I can proceed implementing my project smiley

 

AVR beginner