之前发了一个移植的帖，这次修改一下跑两个线程，来证明RTOS用于多线程的妙处
这个是main.c内容
#include "stdio.h"
#include "NUC029xGE.h"
#include <rtthread.h>
//配置优先级，栈大小，时间片，设置不对没法运行的。
#define THREAD_PRIORITY 5
#define THREAD_STACK_SIZE 256
#define THREAD_TIMESLICE 10
void led(void *parameter)
{
printf("\n\nCPU [url=home.php?mod=space&uid=72445]@[/url] %d Hz\n", SystemCoreClock);
printf("+-------------------------------------------------+\n");
printf("| PC.5(Output) Sample Code |\n");
printf("+-------------------------------------------------+\n\n");
/*-----------------------------------------------------------------------------------------------------*/
/* GPIO Basic Mode Test --- Use Pin Data Input/Output to control GPIO pin */
/*-----------------------------------------------------------------------------------------------------*/
/* Configure PC.5 as Output mode*/
// GPIO_SetMode(PC, BIT5, GPIO_MODE_OUTPUT);
/* Use Pin Data Input/Output Control to pull specified I/O or get I/O pin status */
rt_kprintf("Hello RTT_NANO\n");
while(1)
{
PC5=0;
rt_thread_mdelay(3333);
printf("\nLED is ON\n");
PC5=1;
rt_thread_mdelay(3333);
printf("\nLED is OFF\n");
}
//return 0;
}
/* 导出到 msh 命令列表中 */
MSH_CMD_EXPORT(led, RT-Thread first led sample);
void led2(void *parameter)
{
/* Configure PC.5 as Output mode*/
// GPIO_SetMode(PC, BIT5, GPIO_MODE_OUTPUT);
/* Use Pin Data Input/Output Control to pull specified I/O or get I/O pin status */
rt_kprintf("Hello RTT_NANO\n");
while(1)
{
PC5=0;
rt_thread_mdelay(2000);
printf("\nLED2 is ON\n");
PC5=1;
rt_thread_mdelay(2000);
printf("\nLED2 is OFF\n");
}
//return 0;
}
MSH_CMD_EXPORT(led2, RT-Thread second led sample);
int led_sample(void)
{
static rt_thread_t tid = RT_NULL;
static rt_thread_t tid2 = RT_NULL;
/* 创建线程1 */
tid = rt_thread_create("thread1",
led, RT_NULL,
THREAD_STACK_SIZE,
THREAD_PRIORITY, THREAD_TIMESLICE);
if (tid != RT_NULL)
rt_thread_startup(tid);
/* 创建线程2 */
tid2 = rt_thread_create("thread2",
led2, RT_NULL,
THREAD_STACK_SIZE,
THREAD_PRIORITY, THREAD_TIMESLICE);
if (tid2 != RT_NULL)
rt_thread_startup(tid2);
//该例子共用PC5端口，所以一并在创建线程时候初始化为输出模式
GPIO_SetMode(PC, BIT5, GPIO_MODE_OUTPUT);
return 0;
}
MSH_CMD_EXPORT(led_sample, RT-Thread sample);
/*---------------------------------------------------------------------------------------------------------*/
/* Main Function */
/*---------------------------------------------------------------------------------------------------------*/
int32_t main(void)
{
led_sample();
return 0;
}
/* RT-Thread config file */
#ifndef __RTTHREAD_CFG_H__
#define __RTTHREAD_CFG_H__
#if defined(__CC_ARM) || defined(__CLANG_ARM)
//#include "RTE_Components.h"
//#if defined(RTE_USING_FINSH)
#define RT_USING_FINSH
//#endif //RTE_USING_FINSH
#endif //(__CC_ARM) || (__CLANG_ARM)
// <<< Use Configuration Wizard in Context Menu >>>
// <h>Basic Configuration
// <o>Maximal level of thread priority <8-256>
// <i>Default: 32
#define RT_THREAD_PRIORITY_MAX 8
// <o>OS tick per second
// <i>Default: 1000 (1ms)
#define RT_TICK_PER_SECOND 1000
// <o>Alignment size for CPU architecture data access
// <i>Default: 4
#define RT_ALIGN_SIZE 4
// <o>the max length of object name<2-16>
// <i>Default: 8
#define RT_NAME_MAX 8
// <c1>Using RT-Thread components initialization
// <i>Using RT-Thread components initialization
#define RT_USING_COMPONENTS_INIT
// </c>
#define RT_USING_USER_MAIN
// <o>the stack size of main thread<1-4086>
// <i>Default: 512
#define RT_MAIN_THREAD_STACK_SIZE 256
// </h>
// <h>Debug Configuration
// <c1>enable kernel debug configuration
// <i>Default: enable kernel debug configuration
#define RT_DEBUG
// </c>
// <o>enable components initialization debug configuration<0-1>
// <i>Default: 0
#define RT_DEBUG_INIT 0
// <c1>thread stack over flow detect
// <i> Diable Thread stack over flow detect
//#define RT_USING_OVERFLOW_CHECK
// </c>
// </h>
// <h>Hook Configuration
// <c1>using hook
// <i>using hook
#define RT_USING_HOOK
// </c>
// <c1>using idle hook
// <i>using idle hook
//#define RT_USING_IDLE_HOOK
// </c>
// </h>
// <e>Software timers Configuration
// <i> Enables user timers
#define RT_USING_TIMER_SOFT 0
#if RT_USING_TIMER_SOFT == 0
#undef RT_USING_TIMER_SOFT
#endif
// <o>The priority level of timer thread <0-31>
// <i>Default: 4
#define RT_TIMER_THREAD_PRIO 4
// <o>The stack size of timer thread <0-8192>
// <i>Default: 512
#define RT_TIMER_THREAD_STACK_SIZE 512
// </e>
// <h>IPC(Inter-process communication) Configuration
// <c1>Using Semaphore
// <i>Using Semaphore
#define RT_USING_SEMAPHORE
// </c>
// <c1>Using Mutex
// <i>Using Mutex
//#define RT_USING_MUTEX
// </c>
// <c1>Using Event
// <i>Using Event
//#define RT_USING_EVENT
// </c>
// <c1>Using MailBox
// <i>Using MailBox
#define RT_USING_MAILBOX
// </c>
// <c1>Using Message Queue
// <i>Using Message Queue
//#define RT_USING_MESSAGEQUEUE
// </c>
// </h>
// <h>Memory Management Configuration
// <c1>Dynamic Heap Management
// <i>Dynamic Heap Management
#define RT_USING_HEAP
// </c>
// <c1>using small memory
// <i>using small memory
#define RT_USING_SMALL_MEM
// </c>
// <c1>using tiny size of memory
// <i>using tiny size of memory
//#define RT_USING_TINY_SIZE
// </c>
// </h>
// <h>Console Configuration
// <c1>Using console
// <i>Using console
#define RT_USING_CONSOLE
// </c>
// <o>the buffer size of console <1-1024>
// <i>the buffer size of console
// <i>Default: 128 (128Byte)
#define RT_CONSOLEBUF_SIZE 128
// </h>
#if defined(RT_USING_FINSH)
#define FINSH_USING_MSH
#define FINSH_USING_MSH_ONLY
// <h>Finsh Configuration
// <o>the priority of finsh thread <1-7>
// <i>the priority of finsh thread
// <i>Default: 6
#define __FINSH_THREAD_PRIORITY 5
#define FINSH_THREAD_PRIORITY (RT_THREAD_PRIORITY_MAX / 8 * __FINSH_THREAD_PRIORITY + 1)
// <o>the stack of finsh thread <1-4096>
// <i>the stack of finsh thread
// <i>Default: 4096 (4096Byte)
#define FINSH_THREAD_STACK_SIZE 512
// <o>the history lines of finsh thread <1-32>
// <i>the history lines of finsh thread
// <i>Default: 5
#define FINSH_HISTORY_LINES 1
#define FINSH_USING_SYMTAB
// </h>
#endif
// <<< end of configuration section >>>
#endif
/*
* Copyright (c) 2006-2019, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2017-07-24 Tanek the first version
* 2018-11-12 Ernest Chen modify copyright
*/
#include <stdio.h>
#include <stdint.h>
#include <rthw.h>
#include <rtthread.h>
//#include "uart.h"
#include "NUC029xGE.h"
#define PLL_CLOCK 72000000
#define _SCB_BASE (0xE000E010UL)
#define _SYSTICK_CTRL (*(rt_uint32_t *)(_SCB_BASE + 0x0))
#define _SYSTICK_LOAD (*(rt_uint32_t *)(_SCB_BASE + 0x4))
#define _SYSTICK_VAL (*(rt_uint32_t *)(_SCB_BASE + 0x8))
#define _SYSTICK_CALIB (*(rt_uint32_t *)(_SCB_BASE + 0xC))
#define _SYSTICK_PRI (*(rt_uint8_t *)(0xE000ED23UL))
// Updates the variable SystemCoreClock and must be called
// whenever the core clock is changed during program execution.
extern void SystemCoreClockUpdate(void);
// Holds the system core clock, which is the system clock
// frequency supplied to the SysTick timer and the processor
// core clock.
extern uint32_t SystemCoreClock;
static uint32_t _SysTick_Config(rt_uint32_t ticks)
{
if ((ticks - 1) > 0xFFFFFF)
{
return 1;
}
_SYSTICK_LOAD = ticks - 1;
_SYSTICK_PRI = 0xFF;
_SYSTICK_VAL = 0;
_SYSTICK_CTRL = 0x07;
return 0;
}
#if defined(RT_USING_USER_MAIN) && defined(RT_USING_HEAP)
#define RT_HEAP_SIZE 1024
static uint32_t rt_heap[RT_HEAP_SIZE]; // heap default size: 4K(1024 * 4)
RT_WEAK void *rt_heap_begin_get(void)
{
return rt_heap;
}
RT_WEAK void *rt_heap_end_get(void)
{
return rt_heap + RT_HEAP_SIZE;
}
#endif
/*自己添加跟硬件有关的时钟初始化*/
static void rt_hw_system_init(void)
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init System Clock */
/*---------------------------------------------------------------------------------------------------------*/
SYS_UnlockReg();
/* Enable HIRC clock (Internal RC 22.1184MHz) */
CLK_EnableXtalRC(CLK_PWRCTL_HIRCEN_Msk);
/* Wait for HIRC clock ready */
CLK_WaitClockReady(CLK_STATUS_HIRCSTB_Msk);
/* Select HCLK clock source as HIRC and HCLK clock divider as 1 */
CLK_SetHCLK(CLK_CLKSEL0_HCLKSEL_HIRC, CLK_CLKDIV0_HCLK(1));
/* Set core clock as PLL_CLOCK from PLL */
CLK_SetCoreClock(PLL_CLOCK);
/* Set SysTick clock source to HCLK source divide 2 */
CLK_SetSysTickClockSrc(CLK_CLKSEL0_STCLKSEL_HCLK_DIV2);
SYS_LockReg();
}
/*自己添加跟串口有关的时钟初始化*/
static void rt_hw_usart_init()
{
/* Unlock protected registers */
SYS_UnlockReg();
/* Enable HXT clock (external XTAL 12MHz) */
CLK_EnableXtalRC(CLK_PWRCTL_HXTEN_Msk);
/* Wait for HXT clock ready */
CLK_WaitClockReady(CLK_STATUS_HXTSTB_Msk);
/* Enable UART module clock */
CLK_EnableModuleClock(UART0_MODULE);
/* Select UART module clock source as HXT and UART module clock divider as 1 */
CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UARTSEL_HXT, CLK_CLKDIV0_UART(1));
/*---------------------------------------------------------------------------------------------------------*/
/* Init I/O Multi-function */
/*---------------------------------------------------------------------------------------------------------*/
/* Set multi-function pins for UART0 RXD and TXD */
SYS->GPA_MFPL &= ~(SYS_GPA_MFPL_PA2MFP_Msk | SYS_GPA_MFPL_PA3MFP_Msk);
SYS->GPA_MFPL |= (SYS_GPA_MFPL_PA3MFP_UART0_RXD | SYS_GPA_MFPL_PA2MFP_UART0_TXD);
/* Lock protected registers */
SYS_LockReg();
/* Reset UART0 */
SYS_ResetModule(UART0_RST);
/* Configure UART0 and set UART0 baud rate */
UART_Open(UART0, 115200);
}
/**
* This function will initial your board.
*/
void rt_hw_board_init()
{
/* Configure the system clock */
rt_hw_system_init();
/* System Clock Update */
SystemCoreClockUpdate();
/* System Tick Configuration */
_SysTick_Config(SystemCoreClock / RT_TICK_PER_SECOND);
/* Initial usart deriver, and set console device */
rt_hw_usart_init();
/* Call components board initial (use INIT_BOARD_EXPORT()) */
#ifdef RT_USING_COMPONENTS_INIT
rt_components_board_init();
#endif
#if defined(RT_USING_USER_MAIN) && defined(RT_USING_HEAP)
rt_system_heap_init(rt_heap_begin_get(), rt_heap_end_get());
#endif
}
void SysTick_Handler(void)
{
/* enter interrupt */
rt_interrupt_enter();
rt_tick_increase();
/* leave interrupt */
rt_interrupt_leave();
}
/*自己添加对接串口控制台*/
void rt_hw_console_output(const char *str)
{
printf("%s",str);
}
char rt_hw_console_getchar(void)
{
return getchar();
}
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