FreeRTOS list and list items

list

List item

List item

Mini list item

Requirement

program

#include "sys.h" #include "delay.h" #include "usart.h" #include "led.h" #include "timer.h" #include "lcd.h" #include "key.h" #include "FreeRTOS.h" #include "task.h" //priority #define START_TASK_PRIO 1 #define TASK1_TASK_PRIO 2 #define LIST_TASK_PRIO 3 //Stack size #define START_STK_SIZE 128 #define TASK1_STK_SIZE 128 #define LIST_STK_SIZE 128 //task handle TaskHandle_t StartTask_Handler; TaskHandle_t Task1Task_Handler; TaskHandle_t ListTask_Handler; //Task function void start_task(void *pvParameters); void task1_task(void *pvParameters); void list_task(void *pvParameters); //Define a list and 3 list items List_t TestList; //list ListItem_t ListItem1; //List item 1 ListItem_t ListItem2; //List item 2 ListItem_t ListItem3; //List item 3 int main(void) { NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);//Group 4 delay_init(168); //Initialization delay function uart_init(115200); //Serial port initialization LED_Init(); //Lamp initialization KEY_Init(); //Key initialization //Start creating task xTaskCreate((TaskFunction_t )start_task, //Task function (const char* )"start_task", //Task name (uint16_t )START_STK_SIZE, //Task stack size (void* )NULL, //Pass parameters to task (UBaseType_t )START_TASK_PRIO, //Task priority (TaskHandle_t* )&StartTask_Handler); //task handle vTaskStartScheduler(); //Turn on scheduler } //Start task function void start_task(void *pvParameters) { taskENTER_CRITICAL(); //Enter critical area //Create task 1 xTaskCreate((TaskFunction_t )task1_task, (const char* )"task1_task", (uint16_t )TASK1_STK_SIZE, (void* )NULL, (UBaseType_t )TASK1_TASK_PRIO, (TaskHandle_t* )&Task1Task_Handler); //Create list task xTaskCreate((TaskFunction_t )list_task, (const char* )"list_task", (uint16_t )LIST_STK_SIZE, (void* )NULL, (UBaseType_t )LIST_TASK_PRIO, (TaskHandle_t* )&ListTask_Handler); vTaskDelete(StartTask_Handler); //Delete start task taskEXIT_CRITICAL(); //Exit critical area } //Task 1 task1 void task1_task(void *pvParameters) { while(1) { LED0=!LED0; vTaskDelay(500); //delayed } } //List list task void list_task(void *pvParameters) { //Step 1: initialize list and list items vListInitialise(&TestList); vListInitialiseItem(&ListItem1); vListInitialiseItem(&ListItem2); vListInitialiseItem(&ListItem3); ListItem1.xItemValue=40; //ListItem1 list item? 40 ListItem2.xItemValue=60; //ListItem2 list item? 60 ListItem3.xItemValue=50; //ListItem3 list item? 50 //Step 2: Print list and other list item addresses printf("/*******************Print list and other list item addresses*******************/\r\n"); printf("project address \r\n"); printf("TestList %#x \r\n",(int)&TestList); printf("TestList->pxIndex %#x \r\n",(int)TestList.pxIndex); printf("TestList->xListEnd %#x \r\n",(int)(&TestList.xListEnd)); printf("ListItem1 %#x \r\n",(int)&ListItem1); printf("ListItem2 %#x \r\n",(int)&ListItem2); printf("ListItem3 %#x \r\n",(int)&ListItem3); printf("/************************End**************************/\r\n"); printf("Press down KEY_UP Continue\r\n\r\n\r\n"); while(KEY_Scan(0)!=WKUP_PRES) delay_ms(10); //Wait for key up to be pressed //Step 3: add ListItem1 list item to TestList vListInsert(&TestList,&ListItem1); //Add ListItem1 list item printf("/******************Add ListItem1 list item*****************/\r\n"); printf("ÏîÄ¿ µØÖ· \r\n"); printf("TestList->xListEnd->pxNext %#x \r\n",(int)(TestList.xListEnd.pxNext)); printf("ListItem1->pxNext %#x \r\n",(int)(ListItem1.pxNext)); printf("/*******************Bisection line********************/\r\n"); printf("TestList->xListEnd->pxPrevious %#x \r\n",(int)(TestList.xListEnd.pxPrevious)); printf("ListItem1->pxPrevious %#x \r\n",(int)(ListItem1.pxPrevious)); printf("/************************End**************************/\r\n"); printf("Press down KEY_UP Continue\r\n\r\n\r\n"); while(KEY_Scan(0)!=WKUP_PRES) delay_ms(10); //Wait for key up to be pressed //Step 4: add ListItem2 list item to TestList vListInsert(&TestList,&ListItem2); //Add ListItem2 list item printf("/******************Add ListItem2 list item*****************/\r\n"); printf("project address \r\n"); printf("TestList->xListEnd->pxNext %#x \r\n",(int)(TestList.xListEnd.pxNext)); printf("ListItem1->pxNext %#x \r\n",(int)(ListItem1.pxNext)); printf("ListItem2->pxNext %#x \r\n",(int)(ListItem2.pxNext)); printf("/*******************Bisection line********************/\r\n"); printf("TestList->xListEnd->pxPrevious %#x \r\n",(int)(TestList.xListEnd.pxPrevious)); printf("ListItem1->pxPrevious %#x \r\n",(int)(ListItem1.pxPrevious)); printf("ListItem2->pxPrevious %#x \r\n",(int)(ListItem2.pxPrevious)); printf("/************************End**************************/\r\n"); printf("Press down KEY_UP Continue\r\n\r\n\r\n"); while(KEY_Scan(0)!=WKUP_PRES) delay_ms(10); //Wait for key up to be pressed //Step 5: add ListItem3 list item to TestList vListInsert(&TestList,&ListItem3); //Add ListItem3 list item printf("/******************Add ListItem3 list item****************/\r\n"); printf("project address \r\n"); printf("TestList->xListEnd->pxNext %#x \r\n",(int)(TestList.xListEnd.pxNext)); printf("ListItem1->pxNext %#x \r\n",(int)(ListItem1.pxNext)); printf("ListItem3->pxNext %#x \r\n",(int)(ListItem3.pxNext)); printf("ListItem2->pxNext %#x \r\n",(int)(ListItem2.pxNext)); printf("/*******************Bisection line********************/\r\n"); printf("TestList->xListEnd->pxPrevious %#x \r\n",(int)(TestList.xListEnd.pxPrevious)); printf("ListItem1->pxPrevious %#x \r\n",(int)(ListItem1.pxPrevious)); printf("ListItem3->pxPrevious %#x \r\n",(int)(ListItem3.pxPrevious)); printf("ListItem2->pxPrevious %#x \r\n",(int)(ListItem2.pxPrevious)); printf("/************************End**************************/\r\n"); printf("Press down KEY_UP Continue\r\n\r\n\r\n"); while(KEY_Scan(0)!=WKUP_PRES) delay_ms(10); //Wait for key up to be pressed //Step 6: delete ListItem2 uxListRemove(&ListItem2); //ɾ³ýListItem2 printf("/******************Delete ListItem2*****************/\r\n"); printf("project address \r\n"); printf("TestList->xListEnd->pxNext %#x \r\n",(int)(TestList.xListEnd.pxNext)); printf("ListItem1->pxNext %#x \r\n",(int)(ListItem1.pxNext)); printf("ListItem3->pxNext %#x \r\n",(int)(ListItem3.pxNext)); printf("/********************Bisection line*******************/\r\n"); printf("TestList->xListEnd->pxPrevious %#x \r\n",(int)(TestList.xListEnd.pxPrevious)); printf("ListItem1->pxPrevious %#x \r\n",(int)(ListItem1.pxPrevious)); printf("ListItem3->pxPrevious %#x \r\n",(int)(ListItem3.pxPrevious)); printf("/************************End**************************/\r\n"); printf("Press down KEY_UP Continue\r\n\r\n\r\n"); while(KEY_Scan(0)!=WKUP_PRES) delay_ms(10); //Wait for key up to be pressed //Step 7: add list item ListItem2 at the end TestList.pxIndex=TestList.pxIndex->pxNext; //Add list item ListItem2 at the end vListInsertEnd(&TestList,&ListItem2); //Add list item ListItem2 at the end printf("/***************Add list item ListItem2 at the end***************/\r\n"); printf("ÏîÄ¿ µØÖ· \r\n"); printf("TestList->pxIndex %#x \r\n",(int)TestList.pxIndex); printf("TestList->xListEnd->pxNext %#x \r\n",(int)(TestList.xListEnd.pxNext)); printf("ListItem2->pxNext %#x \r\n",(int)(ListItem2.pxNext)); printf("ListItem1->pxNext %#x \r\n",(int)(ListItem1.pxNext)); printf("ListItem3->pxNext %#x \r\n",(int)(ListItem3.pxNext)); printf("/*****************Bisection line*******************/\r\n"); printf("TestList->xListEnd->pxPrevious %#x \r\n",(int)(TestList.xListEnd.pxPrevious)); printf("ListItem2->pxPrevious %#x \r\n",(int)(ListItem2.pxPrevious)); printf("ListItem1->pxPrevious %#x \r\n",(int)(ListItem1.pxPrevious)); printf("ListItem3->pxPrevious %#x \r\n",(int)(ListItem3.pxPrevious)); printf("/************************End**************************/\r\n\r\n\r\n"); while(1) { LED1=!LED1; vTaskDelay(1000); } }

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