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* Add editorconfig and pre-commit config Editorconfig is widly used and supported file. It says basic things how files should be formatted. pre-commit is tool which can automatically check some basic checks like code formatting everytime someone makes commit. This can also be used in CI to run these things. Then it is very easy to do same things locally as in CI. This also makes easy to select clang-format version so everyone is using same one. * clang-format: Ignore folders where are external code We should not format external code. Add clang-format files to exclude those. We should move external code always to example external/ folder so we can exclude those more easily. * clang-format: Remove custom zephyr/.clang-gormat This clang-format file where introduces before our root clang-format. It does not make sense anymore as we have root clang-format. Removing this will unifie formatting in whole repo. * clang-format: Add couple new rules Add couple new formatting rules. Always align const to left side. We did have only one place where it was right side so this make sense as it is already rule for us. I choose also insertbraces becuase when I run this I notice that we have lot of multiline code without braces. So very error prone places. This will take error possibility away. Repo also always use braces even with single line statments so this does not matter much. * ci: Add pre-commit validation Validate pre-commit in CI. * format: Convert spaces to tabs in Makefiles Makefile normally use tabs. We enforce that with editorconfig. Fix couple places where spaces where still in use. --------- Co-authored-by: Kari Argillander <kari.argillander@fidelix.com>
This port was done with a AT91SAM7S-EK which contained a AT91SAM7S64 processor. The compiler was the GNU ARM compiler and tools from Yagarto project. The hardware was modified by severing the I-PA5 (RXD0), I-PA6 (TXD0), I-PA7 (RTS0) pads and rerouting those signals to a DS75176 RS-485 transceiver. PIN SIGNAL AT91SAM7S --- ------ --------- 1 RO RXD0 2 /RE RTS 3 DE RTS 4 DI TXD0 5 GND GND 6 DO n/c 7 DO n/c 8 +5V From EXT_VCC via 5V Regulator The makefile allows you to build just the dlmstp or a simple server, both for programming into the flash memory of the processor. The dlmstp is the datalink layer for MS/TP over RS-485. I used the makefile from the command line on Windows, and then used the SAM-BA to send the resulting .bin file to the board using a J-Link. To debug the code from flash, run the J-Link GDB Server and then: > arm-elf-gdb bacnet.elf I got the crt.s, at91sam7s256.ld, blinker.c, init.c, isr.c, and timer.c from James P Lynch. I created the rs485.c based on the initialization sequence from serial.c by Keil Electronik. I got the at91sam7s256.h file from Atmel via the Keil website. I started with the makefile from James P Lynch, but it didn't work for me. I then used some ideas from FreeRTOS makefile, and created my own makefile from scratch. Hopefully you find it useful! Steve Karg