Post Created date
AS7 bug when project is under solution folder
So, the problem seems to be with application in subfolder in the solution. I have 2 applications, created in a solution. - First directly under the solution - Second in a...
Thursday, 16 January 2020 - 08:51
AS7 bug when project is under solution folder
Hello, I know this is an old post, but I have a similar problem   I create a blank solution under last version of Atmel Studio.   If I create a projet in a solution...
Thursday, 16 January 2020 - 08:39
I2C working intermittently on ATMEGA32U4
Just one precision for thoose who "arrive" on this page looking for information about I2C on ATMega2560.   The specification is not clear about the TWBR formula.   It is...
Wednesday, 27 February 2019 - 15:15
AVRDUDE Could not find USB device "USBasp" error, despite driver being installed
Hello, I had the same problem on my Win7 PC. I solved it by installing the USBAsp Driver with Zadig! But instead of chossing the default driver, chose the libusb-win32 driver!...
Tuesday, 4 December 2018 - 07:53
Compilation failed because of segmentation fault
I will continue to search... I found lot of thread talking about Seg Fault during execution, not compilation... And yes it is a C++ project! :-)
Wednesday, 13 June 2018 - 08:39
ATmega2560 working at half speed when compiling with AS7
For my personal knowledge, Fuse configuration allow to select different Start-up time. What is the aim of adding such delay?
Tuesday, 29 May 2018 - 13:46
ATmega2560 working at half speed when compiling with AS7
So, as a summary if anyone got the same problem: On an Arduino Mega, there is an External Oscillator at 16MHz. To use it, you have the set the Fuse to "Ext. Crystal Osc. 8.0- Mhz...
Tuesday, 29 May 2018 - 13:40
ATmega2560 working at half speed when compiling with AS7
dbrion0606 wrote: Sometimes intervals (say 0.9-4 Mhz) are denoted as half intervals (say 8Mhz -) to mean "above 8Mhz" I suppose there is a difference between an  "external...
Tuesday, 29 May 2018 - 13:31
ATmega2560 working at half speed when compiling with AS7
Ok, never mind, there is a display error... Fuse tools display "8MHz- ", but it seems that it should be "8MHz - 16MHz"   So I change to "Ext Crystal Osc. 8.0- MHz ...",...
Tuesday, 29 May 2018 - 13:28
ATmega2560 working at half speed when compiling with AS7
Thank you Clawson for your answers   I changed the F_CPU definition to 8000000 and now the timing are correct. So I looked for the CKSEL you are talking about. The fuse are...
Tuesday, 29 May 2018 - 13:11
ATmega2560 working at half speed when compiling with AS7
It is defined as a global option to the compiler in the toolchain properties of the project.
Tuesday, 29 May 2018 - 11:05
ATmega2560 working at half speed when compiling with AS7
Yes sorry I miss your post! ;-) I start answering when only David answered...   So yes, F_CPU is defined at 16000000UL in my project.   I thought that the Atmega2560 on...
Tuesday, 29 May 2018 - 10:04

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