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Discussion Title Created date
Compiler warnings when using atomic
When using atomic per the example below, the compiler issues a warning about the absence of a return statement.   Adding the dummy return avoids the warning and I think is...
Wednesday, 15 June 2022 - 00:53
Cheap AVR debugger works well.... and then it doesn't :-(
Does anyone have any experience with this debugger? https://sites.google.com/site/wayneholder/debugwire3   I have been experimenting with it and is a great little project....
Thursday, 12 May 2022 - 09:36
FET Symbol - very basic
Hi all, The very simple circuit for a hardware debugger @ https://sites.google.com/site/wa... includes a FET as a high side switch.   My reading of the circuit is that the...
Monday, 2 May 2022 - 08:07
atMega328 Xplained mini - quirks?
I have recently been using an Xplained Mini board to develop some code. It is no ICE but for a few dollars it is pretty convenient.   However.... I have experienced some...
Tuesday, 19 April 2022 - 10:48
Detecting TWI stop condition on atMega
The atMega nicely generates interrupts for all TWI conditions - as far as I can see - except for stop.   Is there a way to detect a stop condition that does not involve...
Tuesday, 19 April 2022 - 10:42
TWI between atMega328P (master) and atTiny85 (slave)
I have implemented master and slave code based on the AVR application notes and can happily transmit multiples bytes of data in MTX mode. (hooray)   However in MRX mode, at...
Saturday, 9 April 2022 - 14:28
Cheap and small connectors for off-board wiring
I am designing a small PCB that needs off-board wiring for +5V, Gnd and one comms line (0/5V). The PCB is about 2cm x 4cm.   I am looking at options for cheap and small...
Saturday, 2 April 2022 - 03:28
Common source configured by .h files
Hi, I have a set of files that perform common functions such as UART handling, queue templates and so one, which I would like to share between different projects.   My...
Sunday, 27 March 2022 - 10:23
Changing to a dedicated stack in an interrupt routine
Hi, Is there a "best" way to swap to a dedicated interrupt stack in an ISR?   If I use the naked attribute then I can change the Sp and save... but I lose the intelligence of...
Sunday, 20 March 2022 - 23:33
AVR Studio - watch/examine PROGMEM vars
Hi, I am able to use the Watch window in teh AVR Studio simulator to examine variables by name/structure/class attribute etc if they are in RAM. If I have data in Flash.... is...
Sunday, 20 March 2022 - 09:55
Target memory usage with different compiler versions
Hi, I am compiling a program with both avrStudio7 and avr-gcc v 5.4.0.   The code size is quite different - 38k v 46k. This surprised me at first but both builds seem to run...
Sunday, 27 September 2020 - 05:10
Classes and noinit
This is an fyi rather than a question.   I recently had an issue with noinit objects. In retrospect it was obvious.... so obvious that I recall running into it years ago and...
Tuesday, 18 August 2020 - 15:10

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