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Pin toggling via writing PINx - can I tell which chips have it?
Is there anything defined by the machine description or ioXXXX.h that tells me whether the chip I am compiling for has the ability to toggle output pins by writing to the PINx...
Friday, 16 August 2019 - 09:41
Pullups on UPDI, RST...
Change my mind:   For the modern (Mega-0, Tiny-0, Tiny-1) pullups are unnecessary on the UPDI or RST pins... At worst, they interfere with other desirable functions (HV UPDI...
Wednesday, 7 August 2019 - 01:15
Gratuitous changes to CMSIS types and defines in MPLABX ??!!
So I downloaded the latest MPLABX, which apparently comes with "packs" from https://packs.download.microchip.com/ , which are a couple of versions past the "Atmel Packs" at http...
Monday, 5 August 2019 - 07:57
Using AS7/ARM with PickKit4 on SAMC21
Is ARM (SWD) debugging for SAMC currently working in AS7, using a PICKit4 debugger? Currently, it's recognizing that the PICKit is connected, but is timing out trying to do...
Monday, 5 August 2019 - 00:53
School vs Work, or something...
I former co-worker of mine did a good job putting his finger on something that I've felt for a long time:   I’m watching my way through [an online iOS programming class.]...
Sunday, 7 July 2019 - 03:10
Achieving 1MS/s on SAMD51 DAC?
The SAMD51 DAC is supposed to do 1M conversions/second.  What exactly do you need to do to actually achieve that, or anything close to that?   the Clock should be set to...
Friday, 15 March 2019 - 00:25
Antique CPUs for sale!
(no, not from me.) http://www.bgmicro.com/ICSAT90S4...
Thursday, 14 March 2019 - 07:58
Oscillator calibration. Or decallibration
So if we’re using the internal oscillator, there is usually an associated calibration register. If there is a reason for runnng “as fast as possible”, I might just pick the top...
Wednesday, 13 February 2019 - 10:18
Executing ASCII - an observation.
Huh.  In the AVR instruction set, all of the branching, memory access, and IO instructions have the high bit (0x80) set. This means, if you inadvertently were to, say, put a...
Thursday, 7 February 2019 - 03:04
Simulator hooks?
Does the AS AVR Simulator (or any other AVR simulator, for that matter) provide any mechanism where a user-written host program can examine the chip state when a breakpoint is hit...
Friday, 25 January 2019 - 23:54
Low power sleep modes on SAMD21, SAMD51...
I am pretty confused about the interactions of the various pieces involved in low-power modes of the SAMD processors. There's the WFI instruction of the ARM. There's the SCR (...
Saturday, 12 January 2019 - 01:39
CMSIS .svd files...
I sort-of thought that the .h files included in studio were automatically generated from the ARM-standardized CMSIS ".svd" files. But in fooling around with parsing the .svd files...
Friday, 14 December 2018 - 10:10

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