71ba65e7c0
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>
67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
/*
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* Copyright (c) 2021, Shenzhen Academy of Aerospace Technology
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2021-11-16 Dystopia the first version
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*/
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#include "drv_timer.h"
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#include "interrupt.h"
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#include "common.h"
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#include <rthw.h>
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#include <rtthread.h>
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/**
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* This is the timer interrupt service routine.
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*
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*/
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void rt_hw_systick_isr(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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rt_tick_increase();
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/* leave interrupt */
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rt_interrupt_leave();
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}
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/**
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* The function initial system timer interrupt.
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*/
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void rt_hw_system_timer_init(void)
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{
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// initial system timer interrupt, map local timer interrupt to INT14
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gp_cgem_regs->INTMUX3 = (CSL_GEM_TINTLN << CSL_CGEM_INTMUX3_INTSEL14_SHIFT);
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// enable CPU INT14
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rt_hw_interrupt_umask(1 << 14);
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return ;
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}
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/**
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* The function initial system timer.
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* Use local timer (== DNUM of a core) to generate a clock on TIMO0,interrupts are generated as well
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*
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*/
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void rt_hw_system_timer_start(void)
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{
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Timer64_Config tmrCfg;
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// select output on TIMO0 from local timer.
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gp_bootcfg_regs->TOUTSEL = (DNUM*2) << CSL_BOOTCFG_TOUTSEL_TOUTSEL0_SHIFT;
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// configure the timer to generate clocks and interrupts
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tmrCfg.timer_num = DNUM;
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tmrCfg.timerMode = TIMER_PERIODIC_CLOCK;
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tmrCfg.period = (unsigned long long) RT_TICK_PER_SECOND * DSP_CORE_SPEED_HZ / 6000;
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tmrCfg.reload_period = 0;
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// initial timer
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timer64_init(&tmrCfg);
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}
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