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TWI slave state-machine vs SCTRLB for ATtiny 1-Series
Thanks again Matt. Yes AFAICT too, that's the only place where the standard addresses this situation.   This part's significant: "The master can then generate...
Friday, 5 February 2021 - 02:42
TWI slave state-machine vs SCTRLB for ATtiny 1-Series
Thanks for the quick reply Matt. Yes, that's the diagram all right.   But I don't see any indication, on the top row, of a NACK from the slave followed by completion via Stop...
Thursday, 4 February 2021 - 20:50
XMEGA-E5 Xplained Schematic
Sorry to resurrect a three-year-old zombie thread, but it's become relevant again: the XMEGA-E5 Xplained schematics have gone AWOL once more. I'm sure awneil's solution...
Thursday, 28 January 2021 - 01:32
Where is correct documentation for assembly for M0+?
Thanks, if you'd written that any faster the reply would have arrived before the question :-)   Any idea about that QRC 0011? The docs that reference it have been around for...
Thursday, 21 January 2021 - 09:50
Where is correct documentation for assembly for M0+?
ARM Architecture Reference Manual Thumb-2 Supplement Note that Cortex-M0 (including the SAMD10 that started this all) does NOT implement Thumb-2 instructions....
Thursday, 21 January 2021 - 09:19
Where is correct documentation for assembly for M0+?
Resurrecting a zombie, I know; but for anyone finding this thread useful the ARM Architecture Reference Manual Thumb-2 Supplement (ARM DDI 0308D) is relevant. In...
Monday, 18 January 2021 - 11:53
Debugger - continue from address?
>  Nowadays,  most people will want to view the program from a High Level Language.   An HLL debugger on assembler sourcefiles? Respect!   > ...
Saturday, 3 November 2018 - 11:42
Debugger - continue from address?
Thanks for your quick reply David. The reason not to "set a breakpoint at the required address ..." is simple: there's behaviour leading up to the required address which I want to...
Saturday, 3 November 2018 - 09:21
AVR Errata - Unpublished, and other "Gotchas"
The latest complete datasheet (DS40001906C, dated 2018-02-22) still gives conflicting pinouts for serial ISP.   "Figure 32-6. Serial Programming and Verify, VCC = 1.8 - 5.5V...
Saturday, 4 August 2018 - 03:45
AVR Errata - Unpublished, and other "Gotchas"
The latest (0856L - Nov '16) revision of the Atmel AVR Instruction Set Manual gives the mistaken impression that an intermediary register will often be needed with the EOR...
Monday, 5 February 2018 - 06:38
AVR Errata - Unpublished, and other "Gotchas"
Device: ATmega328PB Xplained Mini User Guide 42469B, updated 2015-08 Summary: PD1 and PD0 ATmega328PB pins incorrectly swapped in "Table 2-10 J104 USART Header" on p.17. (...
Sunday, 12 November 2017 - 05:36
AVR Errata - Unpublished, and other "Gotchas"
Device: ATmega328PB datasheet (complete) 40001906A, (C) 2017 Summary: PD0 incorrectly listed as RXD1 (USART1 Input Pin) on page 98 under "17.3.3. Alternate Functions of Port D"....
Sunday, 12 November 2017 - 05:04

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