![]() From davekw7x: This mod makes sure that internal pull-ups for the I2C pins The original Arduino library code activates internal pull-ups for twi My modification actually changed four lines of code (not two-so sue me) and added a comment: #if defined(_AVR_ATmega168_) || defined(_AVR_ATmega8_) || defined(_AVR_ATmega328P_) ![]() as per note from atmega128 manual pg204 Original code: #if defined(_AVR_ATmega168_) || defined(_AVR_ATmega8_) || defined(_AVR_ATmega328P_) In the arduino-0022/libraries/Wire/utilities/twi.c file, starting at about line number 67: Here is where the 'official' arduino supplied library files are located:Ĭ:\Documents and Settings\Primary Windows User\My Documents\My Programs\Arduino\arduino-0022\libraries Here is the structure of my users library on a windows machine:Ĭ:\Documents and Settings\Primary Windows User\My Documents\Arduino\libraries This allows one to update to a newer arduino IDE release without losing all their own written or downloaded library files. Users can also store contributed libraries into a folder one has to create named libraries and placed in the users sketch directory. Library files that are part of the official arduino distribution are located in the application core file folders. Once the above problem is solved, I'm still not sure how to compile the revised library file and ensure that it is the one that gets loaded.I'd almost imagine they'd have a more accessible place to put the library files. cpp file from within the IDE by using the file/open menu (i.e., file is not in the sketchbook), and when I try to open it I get the message: "Processing can only its own sketches and other files ending in. files to my sketchbook directory and restart the IDE. But it's not working for me, i.e., I copy the. Tried to google for the issue of how to modify a library file using the Arduino IDE, and found this. ![]() I am having a difficult time getting my Arduino to make an Ethernet connection (i.e., hangs on "Ethernet.begin(mac)") and want to implement a change to the Dhcp.cpp library file recommended by someone else on this forum however, they didn't how to go about modifying a library file, but they rather simply told me what line to insert where. ![]()
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