一、使用STM32CubeMX 5.5.0创建rt-thread nano工程
1.选择芯片，潘多拉开发板芯片为STM32L475VET6
2.设置PE7、PE8、PE9为推挽输出(用作验证)
3.添加RT-Thread nano 3.1.3 kernel
4.取消自动生成HardFault_Handler、PendSV_Handler、SysTick_Handler 代码
5.生成MDK工程文件
6.使用keil打开MDK工程，添加LED闪烁线程
//引入头文件
#include <rtthread.h>
//初始化静态线程结构体和线程栈
static struct rt_thread led_thread;
static char led_thread_stack[256];
//编写线程入口函数
static void led_thread_entry(void *parameter)
{
while(1)
{
HAL_GPIO_WritePin(GPIOE, GPIO_PIN_7, GPIO_PIN_RESET);
rt_thread_mdelay(500);
HAL_GPIO_WritePin(GPIOE, GPIO_PIN_7, GPIO_PIN_SET);
rt_thread_mdelay(500);
}
}
//测试线程
int main(void)
{
HAL_Init();
MX_GPIO_Init();
/* USER CODE BEGIN 2 */
HAL_GPIO_WritePin(GPIOE, GPIO_PIN_8, GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOE, GPIO_PIN_9, GPIO_PIN_SET);
rt_err_t rst;
rst = rt_thread_init(&led_thread,
"ledshine",
led_thread_entry,
RT_NULL,
&led_thread_stack[0],
sizeof(led_thread_stack),
RT_THREAD_PRIORITY_MAX-2,
20);
if(rst == RT_EOK)
{
rt_thread_startup(&led_thread);
}
}
7.编译成功，下载程序，LED正常闪烁！RT-Thread nano 3.1.3内核移植成功。
二、移植finsh组件
1.未移植finsh组件的工程目录结构如下
2.在STM32CubeMX中添加rt-thread shell组件
3.生成代码，工程结构如下：
4.在board.c中增加以下代码
4.1引入头文件
#include "stm32l4xx_hal.h"
4.2添加代码
static UART_HandleTypeDef huart1;
static void MX_USART1_UART_Init(void)
{
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
;
}
}
//INIT_BOARD_EXPORT(MX_USART1_UART_Init);
void rt_hw_console_output(const char *str)
{
rt_size_t i = 0, size = 0;
char a = '\r';
__HAL_UNLOCK(&huart1);
size = rt_strlen(str);
for (i = 0; i < size; i++)
{
if (*(str + i) == '\n')
{
HAL_UART_Transmit(&huart1, (uint8_t *)&a, 1, 1);
}
HAL_UART_Transmit(&huart1, (uint8_t *)(str + i), 1, 1);
}
}
char rt_hw_console_getchar(void)
{
int ch = -1;
if (__HAL_UART_GET_FLAG(&huart1, UART_FLAG_RXNE) != RESET)
{
ch = huart1.Instance->RDR & 0xff;
}
else
{
if(__HAL_UART_GET_FLAG(&huart1, UART_FLAG_ORE) != RESET)
{
__HAL_UART_CLEAR_OREFLAG(&huart1);
}
rt_thread_mdelay(10);
}
return ch;
}
4.3在rt_hw_board_init()中加入MX_USART1_UART_Init();
void rt_hw_board_init()
{
/* System Clock Update */
SystemCoreClockUpdate();
/* 添加串口初始化代码 */
MX_USART1_UART_Init();
/* System Tick Configuration */
_SysTick_Config(SystemCoreClock / RT_TICK_PER_SECOND);
/* 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
}
5.成功
超级大洋葱806
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