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Discussion Title Created date
LED/GPIO Question
I'm moving from my EVK1104 to my custom PCB, and I'm having an odd LED/GPIO problem. The EVK1104 has 4 LEDs, my custom board has 3. I've copied and modified the EVK1104's led.c/...
Friday, 2 December 2011 - 17:30
Occasionally Hot UC3A3256
I've got a custom UC3A3256 PCB and I've got an intermittent, odd problem. Every now and then, I plug the PCB into the USB port and nothing happens. Trying to reset into the...
Friday, 2 December 2011 - 16:55
Problem with JTAG Programming via Dragon on Windows 7 64 Bit
Work saw fit to upgrade me to a new laptop, hooray! Things compile much, much faster, sweet! It has a version of Windows that isn't 10+ years old...err...yay? My old laptop had...
Wednesday, 30 November 2011 - 18:04
Custom UC3A3256 Board
I've got a custom UC3A3256 PCB that I just put together, and I'm having some trouble getting it to enumerate when I plug it into a computer. I'm getting the following (Ubuntu 10....
Tuesday, 15 November 2011 - 20:52
Resetting into the DFU Bootloader
I'm trying to add a function to my project to reset to the standard DFU bootloader. For standard use my device is plugged into a computer and enumerated. I plan on creating a (...
Friday, 11 November 2011 - 20:47
Optimizing Code for UC3A3
I've written a custom f_read function for FatFS that allows me to read directly from the disk (SD Card) to the USB controller, which has almost doubled my read performance (to 5.3...
Thursday, 3 November 2011 - 14:13
Has anyone used FullFAT instead of FatFS?
So I'm having some problems with FatFS, mostly because I'm doing wonky stuff with it (trying to pipe a disk read to USB out via DMA). It works great when I'm not trying to use it...
Monday, 31 October 2011 - 21:51
Correct Method to Reset USB?
I'm using a UC3A3 and trying to jump between two different USB setups. Both are MassStorage Class devices, but one will identify as a "block device" (typical read/write drive)...
Monday, 31 October 2011 - 15:26
ASF 2.8.1 Help NOT Online
As the subject says, the help files for ASF 2.8.1 are *not* online.
Friday, 28 October 2011 - 16:20
Detecting a USB Unmount?
Does anyone know anything about the unmounting process of a FAT filesystem? I'm mostly concerned with a USB mounted FAT filesystem (think SD card), and if I would be able to...
Friday, 28 October 2011 - 16:03
AVR32 Clocks
I'm trying to write my own UC3 application on an EVK1104, using the EVK1104 User Project template as a base. I've noticed that different ASF examples use different methods to...
Monday, 24 October 2011 - 19:45
USB Isolated Ground Plane?
For a high speed USB 2.0 PCB, I've read that it should have a continuous, isolated ground plane. Since power is provided by USB that's pretty easy to ensure, just connect the...
Friday, 21 October 2011 - 15:19

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