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PATHETIC UC3C-EK support!
dr.mike wrote:I immediately declared the ASF a boondoggle and just went straight to programming my own drivers from the datasheet. The peripherals are not that complicated. Plus...
Friday, 13 June 2014 - 17:33
AT32UC3B 32-bit timer/counter
The Block Mode Register (BMR) defines the external clock inputs for each channel, allowing them to be chained.
Monday, 19 August 2013 - 19:01
Timing issue using memory stick in audio recorder applicatio
You could try a new or formatted memory stick (to minimize file system overhead), use 16 bits instead of 24 format, or optimize in other ways to avoid the problem. But I still...
Monday, 22 July 2013 - 15:30
Timing issue using memory stick in audio recorder applicatio
Ensure that you have a proper buffer between the ADC and the memory device. Sometimes the memory device performs housekeeping, delaying the access. Also if you write very small...
Saturday, 20 July 2013 - 13:24
RMS.....
To get better accuracy, sample the signal for several periods instead of just one. Then the "ripple" caused by the waveform and frequency will cause less errors than if you sample...
Friday, 19 July 2013 - 18:46
Best way for frequency approach.
An FFT would need to be big to support 0.1 Hz resoulutin at sampling rates around 3 kHz. At least 30 k FFT. And the signal must be measured for 10 seconds to get that accuracy,...
Monday, 1 July 2013 - 16:22
IAR linking problem (AT32UC3C-EK)
My guess is there is a function: gpio_local_clr_gpio_open_drain_pin() which is defined in both source files, and one or both source files include the other.. Try removing the #...
Saturday, 11 May 2013 - 12:56
New to UC3 - Interrupts (UC3B0128)
Check that you have all neccesary includes, ie #include "intc.h" But it seems strange it cannot locate the _evba because that is the exception vector which I believe is required...
Monday, 1 April 2013 - 08:50
New to AVR32 - Assembler build
No problem. Once the development environment is set up and you get to know the instructions, it is not difficult to write rather powerful assembly programs for this MCU. And don't...
Friday, 29 March 2013 - 18:34
New to AVR32 - Assembler build
acelink1 wrote: .org 0 Begin: ld.w r0,500 ld.w r1,200 ld.w r3,300 .end The syntax maybe also is wrong. You need a pointer register to load a word, or...
Thursday, 28 March 2013 - 13:50
UC3 programming in Assembly language
JohanEkdahl wrote:One alternative would be to set up a project at Atmel Spaces. Another would be to set up your own site, e.g. using Bluehost or One.com. A few $ a month.. Or look...
Saturday, 23 March 2013 - 14:44
SD card read performance issues
It should be possible to reach better performance than 300 kB/s read speed using SPI interface, but the software need to be optimized, or implement your own driver based on...
Sunday, 4 November 2012 - 21:59

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