rt-thread.git/libcpu/ti-dsp/c28x/cpuport.c, branch serialX-devUnnamed repository; edit this file 'description' to name the repository.http://cgit.235523.xyz/rt-thread.git/atom/libcpu/ti-dsp/c28x/cpuport.c?h=serialX-dev2022-12-11T18:12:03Z[rtdef] use lower-case to define attributes (#6728)2022-12-11T18:12:03ZMan, Jianting (Meco)920369182@qq.com2022-12-11T18:12:03Zurn:sha1:99bdf978d7fe4ec18ed50a639e15b254825c871b
* [rtdef] rename RT_WEAK attribute as rt_weak
* [rtdef] rename RT_USED attribute as rt_used
* [rtdef] rename RT_SECTION attribute as rt_section
* [rtdef] rename ALIGN attribute as rt_align
* [legacy] add RT_USED ALIGN RT_SECTION RT_WEAK as legacy support[bsp][c28x] add support to not disable global interrupt in context-switch to enable zero-latency isr for critical interrupts.2022-10-20T03:41:13ZYunjie Guyunjie.gu1@gmail.com2022-10-20T03:41:13Zurn:sha1:8fa9fde43a2e9cb978b52c0eb536fe2bafcc6e73tms320f28379d fix init (#6343)2022-08-29T19:35:23ZYuQiqiyu_sjtu@163.com2022-08-29T19:35:23Zurn:sha1:b11cb41ae70a8f31b58cda9807cb7a774369d8b8
解决 tms320f28379d bsp 启动的问题。主要改动如下。
修正context.s中汇编代码错误。在旧版的代码中，操作数为32位而汇编命令却使用了针对16位数据的命令MOV，导致程序在某些情况无法正常启动线程。
由于C28x的平台下，SP只支持16bit寻址，所以用于线程空间存放的heap以及ebss段都需要放在低16位的空间，针对这个问题修改了CMD文件。此外还增加基于CMD文件基于RAM的支持，方便调试。
新增rtdef.h中RT_SECTION，RT_USED，ALIGN和RT_WEAK的定义。旧版bsp中这些定义为空，导致INIT_EXPORT注册的函数失效。
修改程序启动代码，在程序入口直接调用原生启动代码
以上改动在LAUNCHXL-F28379D 通过了测试。add new bsp tms320c66782022-01-29T08:11:42ZMan, Jianting (Meco)920369182@qq.com2022-01-28T18:50:04Zurn:sha1:71ba65e7c0fdb388aa35e019fefbbb5672d39d0a
原始提交PR：https://gitee.com/rtthread/rt-thread/pulls/372
提交者：https://gitee.com/wei-handong
----------------------
在TI公司C6000 DSP处理器上成功移植rt-thread操作系统；主要在libcpu/ti-dsp/c6x添加keystone架构底层代码，在bsp/ti-c6678添加bsp工程，该工程已在本人的开发板上成功运行
* 添加TMS320C6678处理器，keystone架构底层代码
* 添加支持中断栈部分代码，修改格式
* 修改汇编rt_hw_context_switch_to处关于时间槽的使用；修改格式
* 修改使用C语言构建任务栈帧，清除fls和ffs对<c6x.h>文件的依赖
* 修改bsp tms320c6678工程，并测试
* 删除依赖TI的KeyStone_common.c文件
* 添加编译说明
* update bsp/ti-tms320c6678/README.md.
* format code
Co-authored-by: Huang bo <hb265419@126.com>
Co-authored-by: hdwei <1147479335@qq.com>
Co-authored-by: bernard <bernard.xiong@gmail.com>
Co-authored-by: rtthread-bot <48120998+rtthread-bot@users.noreply.github.com>
Co-authored-by: Meco Man <920369182@qq.com>
[libcpu] auto formatted2021-03-27T09:51:56ZMeco Man920369182@qq.com2021-03-27T09:51:56Zurn:sha1:6c907c3a477b1f34ca1adb277748c3306110cabfMerge pull request #3240 from xlf605401969/c28x_fpu2020-12-31T00:35:23ZBernard Xiongbernard.xiong@gmail.com2020-12-31T00:35:23Zurn:sha1:fa38e8d11ec92a6e0f0c7021502f41ad36765242
[libcpu][c28x]add support for c28x mcu hardware fpu[libcpu][update]重启与关机函数：rt_hw_cpu_shutdown、rt_hw_cpu_reset，补充WEAK属性2020-11-20T00:49:51Z张世争zhangshizheng@rt-thread.com2020-11-20T00:49:51Zurn:sha1:355f8dd95cddcf784eb60bfea0a8d6ebf130fdf3[libcpu][c28x]add support for c28x mcu hardware fpu2019-12-05T13:50:48ZXiao Lifanxiao605401969@live.com2019-12-05T13:50:48Zurn:sha1:01b27b9e9117e8a5eba3bac64f02213b1d4734bc[bsp][tms320f28379d] Fix an issue that interrupts are disabled in the thread2019-08-24T10:42:54Zxuzhuoyixzy476386434@vip.qq.com2019-08-24T10:42:54Zurn:sha1:a101327d24f9deed087e8c1421ca50b9f45e4203[libcpu][c28x]Add __rt_ffs support2019-07-03T11:31:54Z明德无敌赵晓薇1755923166@qq.com2019-07-03T11:31:54Zurn:sha1:d68220d8667462339640cfda2f3d80484bd1f8db
Use a native instruction "Count Sign Bits" to support fast ffs function, then add __rt_ffs support in C28x.