08 cmsis

[TibaChang]

Portable Version with CMSIS

[TibaChang]

The problem above are solved. "cmsis" becomes a submodule in this project!

[TibaChang]

I ckick the "close button" mindlessly!

[TibaChang]

All commits are squashed!

[jserv]

Please read coding-style.txt carefully.

[jserv]

Decouple git-submodule from the commit.

[TibaChang]

• I add astyle command into Makefile,it can format all the .c and .h files in core/ and platform.
  • The whole 08-CMSIS is formatted!
  • I squashded the formatted version commit with the previous commit!
• Rename the directories : src->source and inc->include
• The brand new Makefile + rules.mk provides a very portable version.
  • The README are also updated.The guide to modify the Makefile for porting is very simple.The developer need no more than 5 lines can finish their porting job in the Makefile.
  • The rules.mk encapsulate all of the device dependent directories.People should not modify these rules.
• submodules changes the connection way into HTTPS
• The wrong clone URL is updated and double checked.
• I think 08-CMSIS is ready.

[jserv]

Please follow the naming convention of UNIX, which use "src" for "source" (via The Jargon File).

[TibaChang]

• Rename the targets and Modify the Make rules
  • Ex: make p103 or make target PLAT=p103 will build the binary and relevant files.
  • See more details in the modified README
• The directory name are based on the target name,so the directory names are also renamed.
• I use eval to derive almost all of the device relevant variable,so some of your suggestion about Makefile are ill-suited,but I adapt the ideas and do some of them in other ways.
• Rename the "os.h" into "config.h"
• I am wondering how to avoid exposing the UART initialization. I think this is inevitable.

[jserv]

I am wondering how to avoid exposing the UART initialization. I think this is inevitable.

If you check the design of RExOS, you will figure out the techniques of platform abstractions including UART handling. File kernel/kstream.[ch] implement the generic UNIX-like interface functions associating a stream with opened files. We should minimize the invocation of peripherals in file os.c as possible as we can, so that we can maintain it easily.

[TibaChang]

• Introducing a new layer between hardware I/O and OS: "STREAM"
  • A simple abstraction

typedef enum{
    USART,
}STREAM;                                                                                                                    
void stream_init(STREAM stream_type);
void stream_write(STREAM stream_type,const char *data);

[TibaChang]

Move core/include/uart.h into platform/[p103,f429disco]/include dir

[jserv]

README.md: check Comma and Space. We prefer "this is a string, indicating the type" over "his is a string,indicating the type".

[jserv]

You have to put the license notice in cmsis submodule, that is crucial for derived open source projects. Typically, file LICENSE.

[jserv]

Built upon STREAM abstraction, we can provide some shortcut functions such as puts and putc.

[TibaChang]

• FIX README and add more details,such as "USART" info,etc.
• Make p103 use cmsis for registers.
  • Update cmsis submodule
• Make core/src/thread.c use core_cm[3/4].h , core_cmFunc.h and core_cmInstr.h.
• Provide puts macro as a shortcut for stream_write

[TibaChang]

Change into:

    CONTROL_Type setPSP_Thread = {
        .b.nPRIV = 1,
        .b.SPSEL = 1
    };

[TibaChang]

Done!