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Searching all #include files (Read 7244 times)
Trek19
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Searching all #include files
May 26th, 2014 at 12:21pm
 
Is it possible to search all the #include files in a project from VM without actually opening them?
I am specifially trying to find "LFUSE" as the fuse does not get set properly in my ATtiny 84 8MHz.
I am using:
https://code.google.com/p/arduino-tiny/downloads/detail?name=arduino-tiny-0150-0
020.zip
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Gilles Plante
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Re: Searching all #include files
Reply #1 - May 26th, 2014 at 2:19pm
 
Hi Trek19,

the fuse settings are not in include files, but in the board definition file. I had a look at the link provided.

NOTE: your link was separated on two lines, so the 020.zip is missing when one click on the link.

Go to Tiny\AVR in the zip file, you will find Prospective Boards.txt. Here is part of the file:

Code:
# Frequency 8.0- MHz; Start-up time PWRDWN/RESET: 16K CK/14 CK + 65 ms; [CKSEL=1111 SUT=11]
# Brown-out detection level at VCC=4.3 V; [BODLEVEL=100]
# Preserve EEPROM memory through the Chip Erase cycle; [EESAVE=0]
# Serial program downloading (SPI) enabled; [SPIEN=0]

attiny84at16.bootloader.low_fuses=0xFF
attiny84at16.bootloader.high_fuses=0xD4
attiny84at16.bootloader.extended_fuses=0xFF 


The last three lines are for the three fuses, the 1st one being LFUSE. At this location http://www.engbedded.com/fusecalc you will find a fuse calculator, quite useful  Smiley.
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Trek19
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Re: Searching all #include files
Reply #2 - May 28th, 2014 at 11:06am
 
OK Gilles thanks, you must have gone to some effort to see inside those files. I am still trying to understand how the fuses are set.
I had seen the settings in the Boards file and when I do a "Tools-VM-Rebuild tools chain"  with verbose on I see the fuse settings at the begining of the list. But when I examine the actual chip using "Tools-Device Programmig" the fuses are not always set as per the Boards file.
I know its possible to change the fuses in code and I was hoping to search all the #include files without having to open each one, to see if this was happening.
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Gilles Plante
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Re: Searching all #include files
Reply #3 - May 28th, 2014 at 3:15pm
 
Quote:
But when I examine the actual chip using "Tools-Device Programmig" the fuses are not always set as per the Boards file.

If you look at the full documentation for the Microcontroller on the board, you will get all the information about fuses and each of the bits. You will also get it from the fuse calculator. Hum, I think you already know  Wink.

Regarding Arduino, the fuses are programmed when the bootloader is uploaded to the board.

Sometimes, not all bits of a byte are used - the most significant bits are the one not used. When it's the case, these bits may be set to 1 or 0 with no difference. What I have seen is that the board definition file sets these unused bit to 0, but when avrdude reads back them for verification - during bootloader upload, these bits return 1. And then you get a verify error  Shocked ... that is false.

If you have a hardware programmer, then you can update fuses settings with  "Tools-Device Programming". I can't tell if fuses can be changed in code.

Beware though: changing fuse settings can brick an MCU. The only way to bring it back to life is to use a High Voltage programmer, and as far as I understand, the MCU can't be on a board.
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Trek19
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Re: Searching all #include files
Reply #4 - May 29th, 2014 at 1:13pm
 
I have just seen what I think will help examine the my projects active #include files, on the Visual Micro website:
http://www.visualmicro.com/page/How-to-use-the-Visual-Studio-object-browser-for-...
The only problem is I cant get this view. I cant see any reference to an "object browser" and I dont get a list of source files in the project explorer even though I have enabled "show all files".
What I do get is a list of "debug" and "release" files but they are greyed out and cannot be opened.
I have the configuration set to "release" as I am using an ISP on an ATtiny.
I notice that whilst I get a list of "output files" these can be opened for a while after starting V Studio but soon its not possible to open any of them until I have shut VSS down and re-started it.
I am using VM version 1.1404.01
Atmel Studio 6 versin 6.2.1153
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« Last Edit: May 29th, 2014 at 1:17pm by Trek19 »  
 
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Visual Micro
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Re: Searching all #include files
Reply #5 - May 29th, 2014 at 1:58pm
 
Hi,

Sounds like you are using Atmel Studio and not Visual Studio. It's confusing but the "show all sketch files" currently only works in Visual Studio because atmel does not support virtual folders. We are looking at a workaround

The object browser is also a VS tool, for Atmel Studio you should look at the VisualAssistX menu because it drives all intellisense and code navigation.

If you are using a tiny with an arduino 1.0.x install then some fuse settings are hard coded. This is an area that is expanded within arduino 1.5.x

Either way the fuse settings are not considered part of the source codes so you will not find them this way.

Take a look at programmers.txt that is found with the boards.txt. The programers.txt is used to program the boards when not using USB

If we can improve on the 1.0.x programmer upload we will but I am not sure if the atmel device tools will work correctly. If they do then you can program using them.
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« Last Edit: May 29th, 2014 at 2:00pm by Visual Micro »  

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Trek19
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Re: Searching all #include files
Reply #6 - May 29th, 2014 at 3:22pm
 
Ah, silly mistake on my part in haste at thinking I had found a solution, yes I am using Atmel Studio.
I am using the Arduino 1.5.6-r2

Further to my comment about output files:
If have "show all files" on, when I click one the files say .elf I get the following:
[ERROR] Could not open the virtual file node.System.Runtime.InteropServices.COMException: , MethodName: OpenFile
If I disable "show all file" I get the file displayed.
I remeber reading something about displaying .elf files but cant now locate it.
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« Last Edit: May 29th, 2014 at 4:01pm by Trek19 »  
 
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Visual Micro
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Re: Searching all #include files
Reply #7 - May 29th, 2014 at 3:31pm
 
Ok well with arduino 1.5 the fuses are set via the .txt config files (boards, platform and programmers)

There are no hard coded fuses so you have full access to manage the settings
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