1、RT-Thread Nano pack 安装 打开 STM32 CubeIDE --------->Software Packs ------------>Manager Software Packs界面 % w6 ^3 ]6 V9 ]" I
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获取 RT-Thread Nano 软件包,需要在 STM32CubeIDE 中添加 http://www.rt-thread.org/download/cube/RealThread.RT-Thread.pdsc
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. S1 R/ i! B; A回到 Manage software packages 界面,就会发现 RT-Thread Nano 3.1.3 软件包,选择该软件包,点击 Install Now,如下图所示(颜色填充表示已安装): # ]* t; m) S, k. [8 X- |$ a. x
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* l! I( i, W$ V1 e2、创建工程添加 RT-Thread Nano) r9 N- @2 t# `
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2.1 、创建一个基本工程" f9 }2 n1 i; ^, h7 ~/ p% K% |, ?
创建一个基本的工程文件,包含2个LED灯和USART1。 6 ]6 |& h; k, l6 }
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- w4 \/ e3 n4 k2.2、配置 Nano- ?$ J& _* y$ z0 q
勾选 RT-Thread
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适配 RT-Thread Nano+ C$ O: W: c8 D: s. c6 H
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中断与异常处理 ! ~2 P; I1 i2 c9 z/ M. r' | m
RT-Thread 操作系统重定义 HardFault_Handler、PendSV_Handler、SysTick_Handler 中断函数,为了避免重复定义的问题,在生成工程之前,需要在中断配置中,代码生成的选项中,取消选择三个中断函数(对应注释选项是 Hard fault interrupt, Pendable request, Time base :System tick timer),最后点击生成代码,具体操作如下图中 , q4 R+ q8 ?/ A* k* Q+ \
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3、工程代码修改
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3.1 需要修改的部分. X ]5 R$ }6 g; j V. X. W# Z/ `5 ?
1 、修改启动文件 startup_stm32f103rctx.s9 |; m3 ~; k6 }; B7 { N* t6 V6 t
bl main 修改为 bl entry . d c7 q* |* N3 O) s( h% o
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# w( f/ }. z* k' P" a7 W/ o+ T3.2 、配置rt_kprintf端口输出端口映射,函数可以放在main.c文件里面。' v5 P/ h5 t+ a$ q2 K _! s
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% `( g$ }+ s) s8 A$ ~- /* USER CODE BEGIN 4 */
6 s$ f+ s1 y. a! [3 B - char rt_hw_console_getchar(void)/ S3 }( ]. U# Q; k7 D$ @, M
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/ h H3 Z O/ T* \ - int ch = -1;0 l% l. ^/ C& w- h" P+ K6 Y
- if (__HAL_UART_GET_FLAG(&huart1, UART_FLAG_RXNE) != RESET)
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- q0 b! `5 `8 R/ t6 S7 _- ?3 K - ch = huart1.Instance->DR & 0xff;
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& j3 W2 _) `4 T0 z9 n/ G+ \) a - else
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- if (__HAL_UART_GET_FLAG(&huart1, UART_FLAG_ORE) != RESET)
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& @8 X7 @% u! K3 m/ F$ t& u - __HAL_UART_CLEAR_OREFLAG(&huart1);
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- rt_thread_mdelay(10);
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1 D ^# U" t6 b - return ch;+ U, ]* ~/ f4 V) H9 A! R
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- void rt_hw_console_output(const char *str)
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$ x3 D3 e) p9 J' C - rt_size_t i = 0, size = 0;& Y$ B: o5 J: s y
- char a = '\r';
' R, Y; H N# D( x - __HAL_UNLOCK(&huart1);2 k2 W1 c) L- B9 ~& N
- size = rt_strlen(str);9 w# F+ t: A9 W5 v$ k/ Q- |3 a
- for (i = 0; i < size; i++)
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- if (*(str + i) == '\n')' e i5 b3 [* j- z8 W
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- ITM_SendChar(a);4 o5 ~* k) |. |8 I! Y! e, V. G
- HAL_UART_Transmit(&huart1, (uint8_t*) &a, 1, 1);" D2 `: _) G9 i; `. {* _
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- HAL_UART_Transmit(&huart1, (uint8_t*) (str + i), 1, 1);
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- /* USER CODE END 4 */
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3.3 、编写线程文件
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创建一个app_rt_thread.c文件用于保存线程代码 7 i* \* J* I; C
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4 H3 P8 y. B1 D' T- X kapp_rt_thread.c文件内容:# u2 c H4 N, V1 `2 _" N- \! V
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- #include "rtthread.h"' m( S4 C J1 C8 a: u. ?8 K
- #include "main.h"
+ H4 y! y+ W& D7 r9 X [ - #include "stdio.h"
0 D/ K9 [" }6 t6 U# T3 t+ f. B - #include <finsh.h>
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( r" X) S( u9 v# m- /* 定义线程控制块 */6 z. a U- V# O$ U
- //添加LED闪烁线程
& ~2 V2 Z( T# ~ z- j8 h6 ? - static struct rt_thread led_thread;1 T8 }6 i2 r$ f2 h
- static char led_thread_stack[256];& Y1 F; {: o% S6 O
- static void led_thread_entry(void *parameter);
2 e T# o- E; a - int MX_RT_Thread_Init(void);
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( y; `0 ]0 r1 v/ C- int MX_RT_Thread_Init(void)
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- //初始化线程
; y3 I3 n; e5 X9 G4 K' S/ n; N. L - rt_err_t rst;
, [, N( D# s; d o* Z) K - rst = rt_thread_init(&led_thread,; |. A0 p: I8 x3 o7 q1 U# }9 t
- (const char *)"ledshine", /* 线程名字 */
% H& [# m. a# G - led_thread_entry, /* 线程入口函数 */
) r* P" ?' b, T7 K0 k5 p9 I - RT_NULL, /* 线程入口函数参数 */0 o& k0 b) G3 S2 T: `
- &led_thread_stack[0],7 M( k+ v" h& n4 ^5 w
- sizeof(led_thread_stack), /* 线程栈大小 */7 c2 ^) [% r2 {" }; y" R
- RT_THREAD_PRIORITY_MAX-2, /* 线程的优先级 */
9 b! V( y G) M' X$ e - 20); /* 线程时间片 */1 f* A8 u0 k5 W' Z; [# ?$ P
- if(rst == RT_EOK)
5 {+ O6 Y* l% _. k9 v; R - {///* 启动线程,开启调度 */
# D# |3 F' t* P4 u/ V1 g - rt_thread_startup(&led_thread);$ I8 M& `6 D6 m2 e) b
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G% Q" n6 s5 O! w- /*
, Y3 z9 @& `: h5 ` - *************************************************************************
8 S4 J w; t% O1 T6 l1 |) B; ` - * 线程定义
$ z, P+ P3 E) M& k$ ]) Z5 ~ - *************************************************************************! `3 Q. o& b! M: J% M7 \
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- static void led_thread_entry(void *parameter)
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1 S1 \4 m! F0 M0 f3 R% d, n - rt_kprintf("led1_thread running,LED1_ON\r\n");
4 C/ E+ Y/ ^) q, u, O' |: ?) i - HAL_GPIO_WritePin(GPIOA, GPIO_PIN_8, GPIO_PIN_RESET);- p0 t7 ~1 S, U E2 r
- rt_thread_mdelay(500);+ m! F2 V8 `' K: A8 B
- HAL_GPIO_WritePin(GPIOA, GPIO_PIN_8, GPIO_PIN_SET);2 q0 N3 [5 N& a- ]( ~! o
- rt_thread_mdelay(500);
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* B; E' f6 ?+ T# d/ f3 y4 y- MSH_CMD_EXPORT(led_thread_entry,thread running);
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' M* c( M/ X/ G/ ^& B- /* USER CODE BEGIN Includes */( i/ b' Z5 A) i0 S
- #include "rtthread.h"
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- extern int MX_RT_Thread_Init(void);
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) A& z' \& n" Z- int main(void)9 y, i, N5 o7 }/ U
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- /* USER CODE BEGIN 1 */# q* S( i1 P4 `1 K
* z; Q! q- m4 q1 C- /* USER CODE END 1 */
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- /* MCU Configuration--------------------------------------------------------*/
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+ @! l. O% V3 N0 K- /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
( k2 |' z7 t: {8 ]. l5 E4 x - HAL_Init();
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- /* USER CODE BEGIN Init */
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- /* USER CODE END Init */
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; a! M* v! C3 J' |) t- /* Configure the system clock */
: ^+ b" q# E( I; Q - SystemClock_Config();* h. r0 f6 F7 y- r. `) B2 R0 F
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- /* USER CODE BEGIN SysInit */
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' k) J* @2 t. R5 U) W9 R- /* USER CODE END SysInit */
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7 L6 J m+ U, Z; P7 ^% D/ n- /* Initialize all configured peripherals */( E0 X5 O; d% n2 A: t
- MX_GPIO_Init();. }5 S/ A8 ^- Y: |3 `7 [
- MX_USART1_UART_Init();. l; ~9 k' o& a2 A, ?4 D& x
- /* USER CODE BEGIN 2 */
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( `1 o! p0 `# e1 j7 e" e - /* USER CODE END 2 */
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- /* Infinite loop *// c. G. K$ Z& S J7 s% K
- /* USER CODE BEGIN WHILE */0 t* x* o8 { Q0 h2 Y& b# }- S3 ]
- while (1)
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0 i; K+ i! H) g, k; K/ C5 r) I' M - HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_2);
' O; [ q% r2 w4 I* C% J# ` - rt_kprintf("led1_thread TEST\r\n");
# C/ ^ p+ ^& S7 N% X, K8 r - rt_thread_mdelay(100);, S6 D3 a7 s& n! }6 i$ b1 {
- /* USER CODE END WHILE */
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- /* USER CODE BEGIN 3 */
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- /* USER CODE END 3 */
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串口输出: , q# S0 Q: ~( q4 G3 m6 x
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