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Sanity Check: Considering my first SAM4L project. (And shaking in my boots.)
Ok, you got me. I'm not wearing any boots.   The 1207 page datasheet is about enough to scare me back to xMega.   Design Goals : Powered by 2 AA batteries and a...
Friday, 17 July 2015 - 15:12
Solved: xMega8E5 : My RTC isn't waking up my CPU.
I know the RTC is counting by replacing the sleep part with a loop watching for RTC.CNT to change.   I know the interrupt is firing by replacing the sleep part with a loop...
Wednesday, 22 April 2015 - 22:30
RTC and the 32K ULP osc
How do you set the RTC to run from the 32K ULP osc? I want to use this to wake the CPU up after delays of 150mS to several seconds, I think.
Sunday, 19 April 2015 - 23:32
How to engineer a PWM motor driver.
Permanent magnet DC motor with commutators.   Motor rated for a max of "i" amps continuous at max of "e" volts. Stall current is "is." Switching frequency is f. Mosfets rated...
Sunday, 19 April 2015 - 12:14
Locking connectors
  Anybody know part numbers for these?
Wednesday, 4 March 2015 - 00:53
ILI9341 TFT display controler
Anybody know if this thing has a low power shut down mode? Perhaps I should provide a PFET to turn the thing off?
Tuesday, 24 February 2015 - 22:55
C and the xMega Pin Control registers
Been thinking about this for a while, and there has to be a tidy way to do it, but I haven't figured it out yet.    I usually make a file called "Config.h" that...
Friday, 13 February 2015 - 15:18
Resistive Touch Screen -- (Solved)
I post it here 'cause I'm using an xMega192D3.   Here's my "Read the ADC" code:   uint16_t ADCread(uint8_t Channel, uint8_t ADCMode, uint8_t RefSelect ) // Mode = 1 for...
Wednesday, 11 February 2015 - 16:04
EEProm_Update_Block: Thank, you, Dean,
You are a gentleman and a scholar. I was stuck on how to get the pointers to update block right.   http://deans-avr-tutorials.googl...   I didn't mean to post this twice...
Thursday, 22 January 2015 - 20:56
Looking for an example of using the DS18S20 temperature sensor. Using google to search the freaks, I find that there were 9 related projects in the project section in 2010. Alas,...
Sunday, 11 January 2015 - 23:05
ATTiny2313 : Where'd the code go? (Solved : Boneheaded mistake.)
Tiny, stupid LED blinker program, but everything in the while loop is missing from the disassembly.   /* * Christmas2014.c * * Created: 11/2/2014 3:48:37 PM * Author:...
Tuesday, 2 December 2014 - 15:42
Calculating the chip's VCC (From hackaday.com)
Now this is clever. You can calculate VCC by using VCC as a reference to measure the 1.1v reference. VCC then is    (1.1v * 1024) / ADC   A little harder with xMega...
Sunday, 9 November 2014 - 13:55