IMO, these AVR macros are pretty silly as they don't really do anything or provide any benefit.īecause of this, you cannot use these macros to assign values/states to what they "represent".Ībout their only benefit is that they match the datasheet and can concisely represent what h/w register pin & bit need to be modified when printed in documentation. are simple numbers that represent bit number. There are port macros like PORTD which can be used to set the state of 8 pins at once but they are a pointer to the h/w and so they must be used as pointer. The avr gcc package does include some libraries and header files for manipulating h/w but they don't work the way your code is assuming. * Configure the data bus and Control pins as per the hardware connectionĭatabus is connected to P2_0:P2_7 and control bus P0_0:P0_2*/ They use the functions setup() for initial h/w setup functions and loop() which is called over and over by main.Īlso this will not work with gcc or at least not for how you appear to be wanting it to. If you are really wanting to use the Arduino programming environment I think you probably need to spend a bit of time looking at how it works and how to use it.Īrduino created/re-invented its own little world that does not use standard C programming in terms of a main() function and directly touching hardware.Īrduino uses "sketches" which do not have a main() function as they have stolen that function for their environment. ino file but from looking at the code, it appears that you are used to using some other toolset other than Arduino and/or gcc or are not wanting to use any of the Arduino framework. You mention Arduino and put your code into a. It isn't clear what you are wanting/needing to do.
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