Post Created date
ISR versus main while loop
For minimum power, you probably would need to compare the assembly level instructions of the two different cases. However, the difference is probably insignificant compared to LED...
Tuesday, 15 October 2013 - 05:28
working on assembler
I used assembly so that I can have cpu cycle specific control meaning I will know exactly when things happen. An example is using the mcu as an audio dac where the sampling...
Friday, 30 August 2013 - 08:59
Greater than 12 bit resolution with gain stage and two ADCs
I have used auto-scaling and it works. You might get discontinuities where you switch over, but if your application can handle some non-linearity it is the way to go because you...
Wednesday, 21 August 2013 - 08:22
ATxmega16A4 VQFN Exposed Pad
There are recommendations, but there isn't that much in depth about what connecting this pad does or does not do. Here is what I consider when I decide to connect it or not....
Wednesday, 21 August 2013 - 08:16
xmega-256A3BU and programming it
I had a similarly cryptic message when I switched computers. Did you check that your device shows up as Atmel DFU device(no warning or unknown signs) in your device manager if you...
Tuesday, 25 June 2013 - 14:03
need help -> processor does'nt allow writing to USARTF0
Did you check if the PR bit for USARTF0 is on? If PR bit is disabled, then you won't be able to write to the registers associated with that interface in the application code. The...
Thursday, 20 June 2013 - 07:52
ATmega32u4 DFU Bootloader Basic Question
If atmel bootloader is already programmed, then the first time it runs, it will automatically go to bootloader section. After you program it through the bootloader and reset the...
Thursday, 20 June 2013 - 07:48
Looking for some WDT guidance
It should be the same. The watchdog timer will issue the system reset when it's counter hits the selected value. Watchdog timer is based on the actual bit value in the counter,...
Wednesday, 19 June 2013 - 07:31
Looking for some WDT guidance
Quote:Part of me thinks we should just go with the 30% and go adjust our minimal watchdog reset time to 5.5 seconds (70% of 8 seconds). But what's odd, is that we have around 500...
Wednesday, 19 June 2013 - 02:08
ASF 3.8.1 standalone download
I noticed that the newest version of asf is 3.9.1 now. Where are the release notes so I can what has changed? I can't seem to find them.
Tuesday, 18 June 2013 - 01:37
Android connected an xmega u using ASF cdc?
Great! Now that I know it can be done, I just have to make it work.
Tuesday, 11 June 2013 - 08:29
AT86RF231 to STK600 connection
Quote: Joined: Jun 16, 2008 Posts: 1773 Location: North Carolina USA The RF231 is a SPI operated radio. It needs an MCU running the appropriate firmware to drive it. The QFN...
Monday, 10 June 2013 - 03:56