[Nucleo-L4R5] STM32L4R5 移植ucOS III
STM32L4R5外观评测STM32L4R5低功耗评测
STM32L4R5 CoreMark测试
CubeMax自带FreeRTOS系统,并且可以通过软件自动生成OS框架,对于初学者来说,一般还是先接触的uCOS的多,所以让L4R5运行一下ucOS是否好玩。
移植的过程就是复制黏贴,加上编译路径后稍微改动一下代码即可,所以就不详细说了,这里主要添加两个User Task和1个软件定时器
创建User任务(STM32中文官网)
staticvoidApp_TaskCreate (void)
{
OS_ERR err;
CPU_SR_ALLOC();
OS_CRITICAL_ENTER();
OSTaskCreate((OS_TCB * )&FloatTaskTCB,
(CPU_CHAR * )"float test task",
(OS_TASK_PTR )float_task,
(void * )0,
(OS_PRIO )FLOAT_TASK_PRIO,
(CPU_STK * )&FLOAT_TASK_STK,
(CPU_STK_SIZE)FLOAT_STK_SIZE/10,
(CPU_STK_SIZE)FLOAT_STK_SIZE,
(OS_MSG_QTY)0,
(OS_TICK )0,
(void * )0,
(OS_OPT )OS_OPT_TASK_STK_CHK|OS_OPT_TASK_STK_CLR,
(OS_ERR * )&err);
OSTaskCreate((OS_TCB * )&LEDTaskTCB,
(CPU_CHAR * )"LED task",
(OS_TASK_PTR )led_task,
(void * )0,
(OS_PRIO )LED_TASK_PRIO,
(CPU_STK * )&LED_TASK_STK,
(CPU_STK_SIZE)LED_STK_SIZE/10,
(CPU_STK_SIZE)LED_STK_SIZE,
(OS_MSG_QTY)0,
(OS_TICK )0,
(void * )0,
(OS_OPT )OS_OPT_TASK_STK_CHK|OS_OPT_TASK_STK_CLR,
(OS_ERR * )&err);
//OS_TaskSuspend((OS_TCB *)&App_TaskStartTCB, (OS_ERR *)&err);
OS_CRITICAL_EXIT();
OSTaskDel((OS_TCB *)&App_TaskStartTCB, (OS_ERR *)&err);
} //!< End of Create
1、浮点运算测试任务
/*
* !brief task for test float point
* !param void *p_arg
* !retval none
*/
void float_task(void *p_arg)
{
OS_ERR err;
UNUSED(p_arg);
static float float_num=0.0001;
while(1)
{
float_num+=0.0001f;
ifs_printf("float task runing!\r\n");
ifs_printf("float_num inc : %.4f\r\n",float_num);
OSTimeDlyHMSM(0,0,1,0,OS_OPT_TIME_HMSM_STRICT,&err); //ÑÓʱ500ms
}
}2、LED翻转任务
/*
* !brief task for test led
* !param void *p_arg
* !retval none
*/
void led_task(void *p_arg)
{
static ifs_uint8_t fsm_blink = 0;
OS_ERR err;
UNUSED(p_arg);
while (1) {
ifs_printf("led task runing!\r\n");
switch (fsm_blink) {
case 0:
ifs_printf("led 1 on!\r\n");
BSP_LED_On(LED1);
break;
case 1:
ifs_printf("led 2 on!\r\n");
BSP_LED_On(LED2);
break;
// case 2:
// ifs_printf("led 3 on!\r\n");
// BSP_LED_On(LED3);
// break;
case 2:
ifs_printf("led 1 off!\r\n");
BSP_LED_Off(LED1);
break;
case 3:
ifs_printf("led 2 off!\r\n");
BSP_LED_Off(LED2);
break;
// case 5:
// ifs_printf("led 3 off!\r\n");
// BSP_LED_Off(LED3);
// break;
}
if (++fsm_blink > 3) fsm_blink = 0;
OSTimeDlyHMSM(0,0,1,0,OS_OPT_TIME_HMSM_STRICT,&err);
}
}3、创建一个软件定时器
staticvoidApp_ObjCreate (void)
{
OS_ERR err;
OSTmrCreate((OS_TMR * )&tmr1,
(CPU_CHAR * )"tmr1",
(OS_TICK )2,
(OS_TICK )1000 / OSCfg_TickRate_Hz,
(OS_OPT )OS_OPT_TMR_PERIODIC,
(OS_TMR_CALLBACK_PTR)tmr1_callback,
(void * )0,
(OS_ERR * )&err);
if (err == OS_ERR_NONE) {
OSTmrStart((OS_TMR *)&tmr1, &err);
}
}定时器callback函数
static void tmr1_callback(void *p_tmr, void *p_arg)
{
ifs_printf("tmr1 callback running!\r\n");
BSP_LED_Toggle(LED3);
}编译后正常运行
PS:代码见以下链接 https://www.stmcu.org.cn/module/forum/thread-614478-1-1.html
UCOS源码用的是M4内核的3.04那个吗?还是有L4系列专用的源码?
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