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Getting info about chip memory layout... Is there a way to get information out of a .elf file, or out of gld, about the size of sections that exist AND the maximum size that they could be? I know that "avr-size" will... |
Saturday, 18 April 2020 - 00:15 |
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Possible compiler bug (avr-gcc 7.3 (Arduino)) WRT switch/case jump tables So have any of you daring folk using avr-gcc past the Microchip released version seen problems? The latest Arduino (1.8.10) is using their own build of avr-gcc 7.3.0, and while I... |
Saturday, 7 March 2020 - 09:23 |
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changing the default editor in AS7 Somehow I seem to have changed the default editor for .C files in AS7 to be EMACS instead of the internal editor. That was sort-of nice when I was entering code, but it's turning... |
Thursday, 5 March 2020 - 22:40 |
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C, C++, and __flash/PROGMEM C++ folk have notoriously (?) fused to implement the "named address spaces" that are in recent versions of avr-gcc, and make using PROGMEM somewhat more pleasant, using "__flash... |
Wednesday, 8 January 2020 - 10:18 |
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[Solved] Xplained Pro UART (EDBG) data transparency issues with Macintosh? For my next "why me" question... I'm working on a version of the Optiboot (Arduino) bootloader for the Tiny0, tiny1, and mega0 chips. Things are going reasonably well; the new NVM... |
Sunday, 6 October 2019 - 22:08 |
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Trivial use of the CCL... Just checking: Can you use the CCL "trivially" just to move a peripheral function to a pin where you couldn't otherwise direct it? For example, on the ATmega4809, USART0 TXD can... |
Wednesday, 18 September 2019 - 10:14 |
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Makefile question... So, when I took over the Optiboot project, I inherited a makefile structure that includes rules like: atmega168: TARGET = atmega168 atmega168: MCU_TARGET = atmega168 atmega168:... |
Wednesday, 11 September 2019 - 22:42 |
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Manually inserted breakpoints in AS7? I abandoned MPLABX because of the issues I was having, and reverted to running AS7 in a windows VM. Does AS7 really NOT handle manually inserted breakpoints (__asm__... |
Friday, 6 September 2019 - 05:56 |
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MPLAB and PICKit4/SNAP/ipecmd fails to handle non-continuous code? (MPLAB question in this section, now?) Can someone check my sanity? I'm working on a bootloader for Xtiny and Mega0, and I wanted to have a "default" application included, that... |
Thursday, 5 September 2019 - 06:57 |
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XMega/Mega0/Tiny0/Tiny1 avr-libc boot.h (spm wrappers) support Just checking: there's still no avr-libc support equivalent to boot.h for the xmega chips, right? And the new "xtiny" and "mega 0" chips have similar boot/spm usage?... |
Sunday, 1 September 2019 - 00:12 |
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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 |
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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 |