USBaspLoader @ 3.3v always no solution ?

General discussions about V-USB, our firmware-only implementation of a low speed USB device on Atmel's AVR microcontrollers
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Powerbook

USBaspLoader @ 3.3v always no solution ?

Post by Powerbook » Wed Mar 11, 2009 5:39 pm

Hi !

i'm Christophe from France.

I use USBaspLoader with my Mega168 5V 16Mhz board with great sucees... thank you !
But my next project use lots of 3.3v devices (GPS, sensors...) that would be great if all my bord are under 3.3v but... @ 3.3v Avr i known could only run @ 8Mhz, USBaspLoader refuse to work.

Could have a tips or idea (avr with RC internal that could run upto 16Mhz?) to continue to use USBaspLoader but @ 3.3v ?? all idea are welcome ! ;-)

Thank you !

Regards,
PowerbooK.

Guest

Post by Guest » Thu Mar 12, 2009 8:16 am

Do you see PROTTOSS, AVR910 USB? It work under 3.6v. ATtiny25/45/85: 0 - 10 MHz @ 2.7 - 5.5V, 0 - 20 MHz @ 4.5 - 5.5V. If this devises can work 10MHz under 2.7v, it can be possible what it will work 12-14Mhz 3.3v.

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