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Topic: New board using 4809 (Read 2574 times) previous topic - next topic

Jorgie

I think the Ardunio Nano Every is a great start at using the new ATMEGA4809.

It does however, only use a limited amount of the capability of this chip.

Can I humbly suggest another board some where between the Nano/Uno and the Mega using this chip.

Many thanks
Sean

Juraj


Jorgie

Uno WiFi Rev2 has 4809
I know, as does the  Nano Every, my suggestion is to extend the use of the 4809's I/O pins.

8 I/O lines are not being used. In my mind this is a waste.

westfw

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8 I/O lines are not being used. In my mind this is a waste.
Where would you put them, given that an Uno form factor has ... 25 pins (20+i2C+SPI) and there is no current standard board format with 8 more pins than that?
WiFi2 uses most of them for talking to the on-board peripherals.  I can only find one unused pin (PC03)
https://docs.google.com/spreadsheets/d/1bUuwxKd7G1r_SFMM6JxqfG8t5nZKr5snB92dXi-N7kY/edit?usp=sharing

pert


Jorgie

Thank you Pert.

For the others who think I'm suggesting a modification to an existing board. Simply I'm not

What I am suggesting is that Arduino consider adding a NEW board that utilises the extra 8 pins of the 4809 chip.

As my original post stated:
 
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another board some where between the Nano/Uno and the Mega using this chip.

westfw

#6
Jul 30, 2019, 09:30 am Last Edit: Jul 30, 2019, 09:32 am by westfw
The (Microchip) "ATmega4809 Curiosity Nano" that Pert mentioned is NOT a version of the Arduino Nano, but rather the next step downward in "development board complexity" from the previous "Xplained Pro" and "Xplained Mini" development boards.

In particular, the Curiosity breaks out ALL of the 4809 pins, and includes a nEDBG chip (thus the "nano" label.  There's EDBG (an AVR32), mEDBG (as used on Zero - an ATmega32u4), and now nEDBG (a SAMD21 ARM chip.)   The Curiosity is rather huge - longer than an Uno.  (Diagram showing relative sizes.  The Blue rectangle is the size of the Curiosity Nano, the thing in the middle is an Arduino Nano.)




I had thought that the Curiosity would prevent Arduino themselves from offering a Nano-sized 4809 board, but I guess not.  Perhaps it's just too large.  (it does not fit very well in protoboards!)


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