【AT-START-F425测评】+RT-Thread移植到AT32F425

freeelectron 发表于 2022-5-23 17:56

<font style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">1、准备好一个keil 工程<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<strong style="overflow-wrap:break-word; word-break:break-all; font-weight:700; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">2、点击“Manage Run-Time Environment”<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
 <br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<strong style="overflow-wrap:break-word; word-break:break-all; font-weight:700; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">3、在“Manage Run-Time Environment”中勾选kernel和shell<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
 <br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">4、勾选之后，在工程目录中，可以看到多了RTOS一项，里面是RT-Thread的相关代码<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
 <br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">5、FinSH配置，在rtconfig.h中使能FinSH，可以使用配置向导，也可以使用代码<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
 <br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<strong style="overflow-wrap:break-word; word-break:break-all; font-weight:700; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">6、控制台使能，在rtconfig.h中使能控制台，可以使用配置向导，也可以使用代码<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
 <br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">7、”系统时钟节拍配置报错，#error "TODO 1: OS Tick Configuration."<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
 <br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<strong style="overflow-wrap:break-word; word-break:break-all; font-weight:700; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">8、配置系统时钟节拍<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
在void rt_hw_board_init(void)函数中，设置使用systick为系统时钟。<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<strong style="overflow-wrap:break-word; word-break:break-all; font-weight:700; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">9、串口初始化报错，“"TODO 2: Enable the hardware uart and config baudrate."”<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
 <br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<strong style="overflow-wrap:break-word; word-break:break-all; font-weight:700; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">10、配置串口<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
 <br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
在uart_init函数中，调用串口初始化的函数即可。

<div class="code_div" style="text-align:start">
<div class="code_tools" style="text-align:center; padding:2px; width:40px; margin-top:5px; margin-right:5px; margin-bottom:5px; margin-left:5px"><a onclick="copycode($('code_Mvd'));" style="overflow-wrap:break-word; word-break:break-all; color:white; text-decoration:none; cursor:pointer">复制</a></div>
</div>

<pre>
<code class="language-cpp">void SerialInit(void)

{

 gpio_init_type gpio_init_struct;

 crm_periph_clock_enable(CRM_USART1_PERIPH_CLOCK, TRUE);

#if 1

 /* enable the usart1 and gpio clock */

 crm_periph_clock_enable(CRM_GPIOB_PERIPH_CLOCK, TRUE);

 gpio_default_para_init(&gpio_init_struct);

 /* configure the usart1 tx/rx pin */

 gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;

 gpio_init_struct.gpio_out_type= GPIO_OUTPUT_PUSH_PULL;

 gpio_init_struct.gpio_mode = GPIO_MODE_MUX;

 gpio_init_struct.gpio_pins = GPIO_PINS_6 | GPIO_PINS_7;

 gpio_init_struct.gpio_pull = GPIO_PULL_NONE;

 gpio_init(GPIOB, &gpio_init_struct);

 /* config usart1 iomux */

 gpio_pin_mux_config(GPIOB, GPIO_PINS_SOURCE6, GPIO_MUX_0);

 gpio_pin_mux_config(GPIOB, GPIO_PINS_SOURCE7, GPIO_MUX_0);

#else

 /* enable the usart1 and gpio clock */

 crm_periph_clock_enable(CRM_GPIOA_PERIPH_CLOCK, TRUE);

 gpio_default_para_init(&gpio_init_struct);

 /* configure the usart1 tx/rx pin */

 gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;

 gpio_init_struct.gpio_out_type= GPIO_OUTPUT_PUSH_PULL;

 gpio_init_struct.gpio_mode = GPIO_MODE_MUX;

 gpio_init_struct.gpio_pins = GPIO_PINS_9 ;

 gpio_init_struct.gpio_pull = GPIO_PULL_NONE;

 gpio_init(GPIOA, &gpio_init_struct);



 gpio_init_struct.gpio_pins =GPIO_PINS_10;

 gpio_init(GPIOA, &gpio_init_struct);

 /* config usart1 iomux */

 gpio_pin_mux_config(GPIOA, GPIO_PINS_SOURCE9, GPIO_MUX_1);

 gpio_pin_mux_config(GPIOA, GPIO_PINS_SOURCE10, GPIO_MUX_1);

#endif

/* configure usart1 param */

 usart_init(USART1, 115200, USART_DATA_8BITS, USART_STOP_1_BIT);

 usart_parity_selection_config(USART1, USART_PARITY_NONE);

usart_hardware_flow_control_set(USART1,USART_HARDWARE_FLOW_NONE);

 usart_transmitter_enable(USART1, TRUE);

 usart_receiver_enable(USART1, TRUE);

 usart_enable(USART1, TRUE);

}</code></pre>

<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<font style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">11、串口输出报错，“"TODO 3: Output the string 'str' through the uart."”<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
 <br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<strong style="overflow-wrap:break-word; word-break:break-all; font-weight:700; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">12、配置串口输出

<pre>
<code class="language-cpp">void rt_hw_console_output(const char *str)

{

//#error "TODO 3: Output the string 'str' through the uart."



 rt_size_t i = 0, size = 0;

char a = '\r';

size = rt_strlen(str);

for (i = 0; i < size; i++)

{

 if (*(str + i) == '\n')

 {

 usart_data_transmit(USART1, (uint32_t )a);

 while((usart_flag_get(USART1, USART_TDC_FLAG) == RESET));

 }

 usart_data_transmit(USART1, (uint32_t)*(str + i));

 while((usart_flag_get(USART1, USART_TDC_FLAG) == RESET));

}

}</code></pre>

<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<strong style="overflow-wrap:break-word; word-break:break-all; font-weight:700; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">13、串口输入报错，“#error "TODO 4: Read a char from the uart and assign it to 'ch'."”<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
 <br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<strong style="overflow-wrap:break-word; word-break:break-all; font-weight:700; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">14、配置串口输入

<div class="code_div" style="text-align:start">
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</div>

<pre>
<code>RT_WEAK char rt_hw_console_getchar(void)
{
/* Note: the initial value of ch must < 0 */

//#error "TODO 4: Read a char from the uart and assign it to 'ch'."

/* the initial value of ch must < 0 */
int ch = -1;

if (usart_flag_get(USART1, USART_RDBF_FLAG) != RESET)
{
 ch = usart_data_receive(USART1);
}
else
{
 rt_thread_mdelay(10);
}
return ch;
}</code></pre>

<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<strong style="overflow-wrap:break-word; word-break:break-all; font-weight:700; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">15、HardFault_Handler和PendSV_Handler重复定义<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
 在at32f425_int.c中屏蔽掉即可，这两个中断RT-Thread已经处理了。<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<strong style="overflow-wrap:break-word; word-break:break-all; font-weight:700; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">16、Systick中断回调处理<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
配置了Systick为系统的时钟，需要需要在Systick中处理系统的回调函数

<pre>
<code>void SysTick_Handler(void)
{
 void rt_os_tick_callback(void);
 rt_os_tick_callback();
}</code></pre>

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<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
<strong style="overflow-wrap:break-word; word-break:break-all; font-weight:700; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">17、创建一个led线程

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<pre>
<code class="language-cpp">static rt_thread_t led_thread = RT_NULL;

void LedInit(void)

{

 gpio_init_type gpio_init_struct;

 /* enable the led clock */

 crm_periph_clock_enable(CRM_GPIOC_PERIPH_CLOCK, TRUE);

 /* set default parameter */

 gpio_default_para_init(&gpio_init_struct);

 /* configure the led gpio */

 gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;

 gpio_init_struct.gpio_out_type= GPIO_OUTPUT_PUSH_PULL;

 gpio_init_struct.gpio_mode = GPIO_MODE_OUTPUT;

 gpio_init_struct.gpio_pins = GPIO_PINS_2|GPIO_PINS_3|GPIO_PINS_5;

 gpio_init_struct.gpio_pull = GPIO_PULL_NONE;

 gpio_init(GPIOC, &gpio_init_struct);

}

static void led_thread_entry(void *parameter)

{

while (1)

{

 gpio_bits_write(GPIOC, GPIO_PINS_2|GPIO_PINS_3|GPIO_PINS_5, (confirm_state)!gpio_output_data_bit_read(GPIOC, GPIO_PINS_2|GPIO_PINS_3|GPIO_PINS_5));

 rt_thread_mdelay(1000);

 rt_kprintf("led blink\r\n");

}

}

void LedThreadStart(void)

{

 led_thread = rt_thread_create( "led", /*线程名字*/

 led_thread_entry,/*线程入口函数*/

 RT_NULL,/*线程入口函数参数*/

 256, /*线程栈大小*/

 4 , /*线程优先级*/

 20); /*线程时间片*/

 rt_thread_startup (led_thread);

}</code></pre>

 
<font style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">18、硬件初始化<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
 <br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
在rt_hw_board_init函数中包含led初始化函数。<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />
 
<strong style="overflow-wrap:break-word; word-break:break-all; font-weight:700; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">19、在main函数中调用启动led线程

<pre>
<code>int main(void)
{
 LedThreadStart();

 return 0;
}</code></pre>

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<font style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial">20、现象<br style="overflow-wrap:break-word; word-break:break-all; color:#444444; font-family:Tahoma, "Microsoft Yahei", Simsun; font-size:16px; font-style:normal; font-variant-ligatures:normal; font-weight:400; text-align:start; white-space:normal; background-color:#f2f9fd; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial" />

wangerxian 发表于 2022-5-23 18:51

讲解的挺详细的！感谢分享

freeelectron 发表于 2022-5-23 19:00

<div class="quote">
<blockquote><a href="forum.php?mod=redirect&goto=findpost&pid=3144938&ptid=1204276" target="_blank">wangerxian 发表于 2022-5-23 18:51</a> 讲解的挺详细的！感谢分享</blockquote>
</div>

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