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@ -37,17 +37,19 @@ The provided `main.c` is a good starting point - it contains some simple demo co |
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You can compile it with `make` and flash with `make flash`. |
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### adjusting the Makefile |
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### "It doesn't work" |
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**Before you can flash,** check that the `avrdude` options in the file are correct for your system |
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- especially the device (`/dev/ttyUSB0`). It can differ if you're on Mac or Windows (`/dev/cu.xxx`, resp. `COMx`). |
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You can look what the Arduino IDE is using - it's running avrdude internally as well. |
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You may also adjust the baudrate (`-b 57600`). Some boards need 115200 or a different value. |
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If you *add a new C file* to the project, add an entry for it's `.o` (object file, |
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created by the compiler before linking) to the `OBJS` list in the Makefile. |
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You can look what the Arduino IDE is using - it's running avrdude too. |
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Similarly, if you *add a new folder with header files*, add it to `INCL_DIRS`. |
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### adjusting the Makefile |
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In case you need `printf` (or `printf` with floats), enable the appropriate LD_FLAGS in the Makefile (it's well |
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- If you *add a new C file* to the project, add an entry for it's `.o` (object file, |
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created by the compiler before linking) to the `OBJS` list in the Makefile. |
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- Similarly, if you *add a new folder with header files*, add it to `INCL_DIRS`. |
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- In case you need `printf` (or `printf` with floats), enable the appropriate LD_FLAGS in the Makefile (it's well |
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commented). Code size will - obviously - grow quite a bit. |
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