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avr-gcc -flto bug, maybe because weak symbols that eval. to zero?
(also sent to avr-gcc-list mailing list)   Discovered on Arduino (4.9.2-atmel3.5.4) ( http://forum.arduino.cc/index.php?topic=556674.0 ) So I have this pretty trivial avr-gcc...
Sat. Jul 7, 2018 - 01:19 AM
Compiler bug - with LTO only?
The arduino folk seem to have found a compiler bug, that occurs only when using link-time-optimization.   http://forum.arduino.cc/index.ph... How do you even collect...
Fri. Jul 6, 2018 - 10:02 AM
General Timer register Synchronization question.
The TC timers and RTC in the SAMD series have a COUNT register that requires "Read Synchronization" When executing an operation that requires synchronization, the Synchronization...
Fri. Jun 22, 2018 - 12:26 AM
instrumenting functions
Is there a way to get gcc to include some user-provided code into function prologues?  I see that there is -finstrument-functions which is close to what I want, but it...
Tue. Feb 20, 2018 - 11:43 PM
Amazon buys FreeRTOS...
https://aws.amazon.com/freertos/ https://aws.amazon.com/blogs/ope...   That's wild ...  I didn't know that such a thing was even within the realm of possibility!...
Fri. Dec 1, 2017 - 08:04 AM
ASF I2C library for SAMD does floating point, causing bloat
apparently  _i2c_master_set_config() does this poorly documented: It turns out (http://www.eevblog.com/forum/mic... ) that the ASF function _i2c_master_set_config() uses...
Tue. Nov 21, 2017 - 09:11 PM
Where to report bugs in ASF/etc?
So where does one submit bugs and complaints about ASF/etc for official consideration?   I've found references to http://asf.atmel.com/bugzilla/ , but it seems pretty...
Tue. Nov 21, 2017 - 08:54 PM
libsam documentation?
I guess that libsam was Atmel's ARM library back before "ASF."   I have legacy code that still uses libsam, but I can't find documentation (and it's old enough that...
Fri. Oct 6, 2017 - 12:51 AM
External Interrupt (EIC) on multiple pins
The SAMD chips only seem to have 16 EIC channels, and up to 7 pins (on sam51p) can share the same channel.   Is it the case that if I enabled multiple pins on the same...
Mon. Oct 2, 2017 - 09:09 AM
Touch Controller and LED on same pin?
Is is possible to set up a pin to do both capacative touch-sensing AND illuminate an LED to show state "at the same time" ? I was thinking: illuminate the LED for 5ms each 10ms,...
Fri. Jun 9, 2017 - 09:26 AM
Web site documentation access for Xmega "broken."
The xMega chips pretty much each require two datasheets, the "family" datasheet (ie Atmel-8331-8-and-16-bit-AVR-Microcontroller-XMEGA-AU_Manual) that describes the peripherals in...
Wed. Apr 26, 2017 - 12:23 AM
hijacking avr-gcc/etc from your Arduino install...
With WINAVR becoming unmaintained, various people including myself are starting to think that the easiest way of getting a basic set of avr-gcc tools installed on your Windows...
Mon. Feb 27, 2017 - 11:31 AM

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