avrdude -p atxmega64a1u -P usb -c usbasp -C nf -E noreset -U flash:w:main.hexĪvrdude: AVR device initialized and ready to accept instructions Unfortunately If I found this error for make program
Codevision 2.06 update#
I have tried for ATXmega128A1U and ATXmega64A1U and I use avrdude rev 1104 and update for nf. Sending more payload (more than a regular control message) would break the clocking but the programmer can be scheduled to work in batches, so it gathers all data from the usb and only then begins the PDI transmission (hoping that there will be no new USB transmission for a while). The tests showed that the interrupt handling a basic control transfer only steals 40-50 us, and this is short enough to allow for the reliable PDI bit banging.
Codevision 2.06 software#
Strict timing is a problem for V-USB (USB protocol implementation used in USBASP) as it handles all USB transmissions in software and cannot do both things at the same time (like a guy who lacks brain power to walk and talk at the same time). Initially I thought it would be almost impossible, because PDI requires a constantly clocking signal and disconnects if the clock rate drops below 10 kHz. what?! What happened to ISP? No way I would purchase a completely new programmer model just to play with their new MCU!įortunately, implementing the new programming protocol in USBASP was not that hard. And then you read about the programming interface and. More speed (32MHz!), more peripherals (5 USARTs! 16 PWM channels!), modular design, and you can still use the same well known tools.
Do you know XMEGA, the new family of AVR microcontrollers? They look really sweet, especially for someone who already mastered the AVR architecture.
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