https://www.youtube.com/watch?v=cv9VIotr4Ms&list=PLEfMFrwVdbPYzMgeaLiFRb4ogjV8m3lt6&index=13&t=0s
TaskHandle_t myTask1Handle = NULL;
TaskHandle_t myTask2Handle = NULL;
int notificationValue;
void myTask1(void *pvParameters)
{
TickType_t xDelay = pdMS_TO_TICKS(1000);
TickType_t myLastUnblock;
myLastUnblock = xTaskGetTickCount();
for(;;)
{
xTaskNotify(myTask2Handle , 0 , eNoAction); //notification을 보낼 것이다. 그러나 value에 관해서는 아무것도 하지 않을 것(eNoAction)
//eIncrement로 설정하면 1씩 증가해서 들어옴
vTaskDelay(1000);
}
}
void myTask2(void *pvParameters)
{
TickType_t xDelay = pdMS_TO_TICKS(1000);
TickType_t myLastUnblock;
myLastUnblock = xTaskGetTickCount();
uint32_t ulNotifiedValue;
char temp[10];
char* text;
for(;;)
{
if( xTaskNotifyWait(0, 0, &ulNotifiedValue, portMAX_DELAY) == pdTRUE)
{
text = "notification received : ";
HAL_UART_Transmit(&huart2, (uint8_t *)text,strlen(text) , 10);
sprintf(temp,"%d", ulNotifiedValue);
HAL_UART_Transmit(&huart2, (uint8_t *)temp,strlen(temp) , 10);
HAL_UART_Transmit(&huart2, (uint8_t *)"\r\n",strlen("\r\n") , 10);
}
//HAL_UART_Transmit(&huart2, (uint8_t *)"\r\n",strlen("\r\n") , 10);
}
}notification received : 0
notification received : 0
notification received : 0
notification received : 0
notification received : 0
notification received : 0
TaskHandle_t myTask1Handle = NULL;
TaskHandle_t myTask2Handle = NULL;
int notificationValue;
void myTask1(void *pvParameters)
{
TickType_t xDelay = pdMS_TO_TICKS(1000);
TickType_t myLastUnblock;
myLastUnblock = xTaskGetTickCount();
for(;;)
{
xTaskNotify(myTask2Handle , (1<<2) | (1<<0) , eSetBits);
//notification을 보낼 것이다. 5로 eSetBits 지정해서 보냄
vTaskDelay(1000);
}
}
void myTask2(void *pvParameters)
{
TickType_t xDelay = pdMS_TO_TICKS(1000);
TickType_t myLastUnblock;
myLastUnblock = xTaskGetTickCount();
uint32_t ulNotifiedValue;
char temp[10];
char* text;
for(;;)
{
if( xTaskNotifyWait(0, 0, &ulNotifiedValue, portMAX_DELAY) == pdTRUE)
{
text = "notification received : ";
HAL_UART_Transmit(&huart2, (uint8_t *)text,strlen(text) , 10);
sprintf(temp,"%d", ulNotifiedValue);
HAL_UART_Transmit(&huart2, (uint8_t *)temp,strlen(temp) , 10);
HAL_UART_Transmit(&huart2, (uint8_t *)"\r\n",strlen("\r\n") , 10);
}
//HAL_UART_Transmit(&huart2, (uint8_t *)"\r\n",strlen("\r\n") , 10);
}
}notification received : 5
notification received : 5
notification received : 5
notification received : 5
void myTask1(void *pvParameters)
{
TickType_t xDelay = pdMS_TO_TICKS(1000);
TickType_t myLastUnblock;
myLastUnblock = xTaskGetTickCount();
for(;;)
{
xTaskNotify(myTask2Handle , (1<<0), eSetBits); //notification을 보낼 것이다. 그러나 value에 관해서는 아무것도 하지 않을 것(eNoAction)
vTaskDelay(1000);
xTaskNotify(myTask2Handle , (1<<1), eSetBits); //notification을 보낼 것이다. 그러나 value에 관해서는 아무것도 하지 않을 것(eNoAction)
vTaskDelay(1000);
xTaskNotify(myTask2Handle , (1<<2), eSetBits); //notification을 보낼 것이다. 그러나 value에 관해서는 아무것도 하지 않을 것(eNoAction)
vTaskDelay(1000);
}
}notification received : 1
notification received : 3
notification received : 7
notification received : 7
notification received : 7
notification received : 7
notification received : 7
void myTask1(void *pvParameters)
{
TickType_t xDelay = pdMS_TO_TICKS(1000);
TickType_t myLastUnblock;
myLastUnblock = xTaskGetTickCount();
for(;;)
{
xTaskNotify(myTask2Handle , (1<<0), eSetValueWithOverwrite); //1
vTaskDelay(1000);
xTaskNotify(myTask2Handle , (1<<1), eSetValueWithOverwrite); //2
vTaskDelay(1000);
xTaskNotify(myTask2Handle , (1<<2), eSetValueWithOverwrite); //4
vTaskDelay(1000);
}
}notification received : 1
notification received : 2
notification received : 4
void myTask1(void *pvParameters)
{
TickType_t xDelay = pdMS_TO_TICKS(1000);
TickType_t myLastUnblock;
myLastUnblock = xTaskGetTickCount();
for(;;)
{
xTaskNotify(myTask2Handle , (1<<0), eSetBits); //1
vTaskDelay(1000);
xTaskNotify(myTask2Handle , (1<<1), eSetBits); //2
vTaskDelay(1000);
xTaskNotify(myTask2Handle , (1<<2), eSetBits); //4
vTaskDelay(1000);
}
}
void myTask2(void *pvParameters)
{
TickType_t xDelay = pdMS_TO_TICKS(1000);
TickType_t myLastUnblock;
myLastUnblock = xTaskGetTickCount();
uint32_t ulNotifiedValue;
char temp[10];
char* text;
for(;;)
{
if( xTaskNotifyWait( (1<<2) | (1<<1) | (1<<0), 0, &ulNotifiedValue, portMAX_DELAY) == pdTRUE)
{ //첫번째, mask to notification value that i wan to clear , 두번째 clearing on exit to the function(?)
// 모든 bit를 초기화하려면 첫번째 parameter를 0xFFFFFFFF 로 두면됨
text = "notification received : ";
HAL_UART_Transmit(&huart2, (uint8_t *)text,strlen(text) , 10);
sprintf(temp,"%d", ulNotifiedValue);
HAL_UART_Transmit(&huart2, (uint8_t *)temp,strlen(temp) , 10);
HAL_UART_Transmit(&huart2, (uint8_t *)"\r\n",strlen("\r\n") , 10);
}
//HAL_UART_Transmit(&huart2, (uint8_t *)"\r\n",strlen("\r\n") , 10);
}
}
notification received : 1
notification received : 2
notification received : 4
void myTask1(void *pvParameters)
{
TickType_t xDelay = pdMS_TO_TICKS(1000);
TickType_t myLastUnblock;
myLastUnblock = xTaskGetTickCount();
uint32_t ulNotifiedValue;
char* text;
char temp[10];
xTaskNotify(myTask2Handle , (1<<0), eSetValueWithoutOverwrite); //1
vTaskDelay(1000);
xTaskNotify(myTask2Handle , (1<<1), eSetValueWithoutOverwrite); //2
vTaskDelay(1000);
xTaskNotifyAndQuery(myTask2Handle, (1<<2), eSetValueWithoutOverwrite, &ulNotifiedValue);//4
//it will show me the last value which is going to be
vTaskDelay(1000);
text = "the last notification value was : ";
sprintf(temp,"%d", ulNotifiedValue);
HAL_UART_Transmit(&huart2, (uint8_t *)text,strlen(text) , 10);
HAL_UART_Transmit(&huart2, (uint8_t *)temp,strlen(temp) , 10);
HAL_UART_Transmit(&huart2, (uint8_t *)"\r\n",strlen("\r\n") , 10);
for(;;)
{
}
}
void myTask2(void *pvParameters)
{
TickType_t xDelay = pdMS_TO_TICKS(1000);
TickType_t myLastUnblock;
myLastUnblock = xTaskGetTickCount();
uint32_t ulNotifiedValue;
char temp[10];
char* text;
for(;;)
{
if( xTaskNotifyWait( 0, 0, &ulNotifiedValue, portMAX_DELAY) == pdTRUE)
{ //첫번째, mask to notification value that i wan to clear , 두번째 clearing on exit to the function(?)
text = "notification received : ";
HAL_UART_Transmit(&huart2, (uint8_t *)text,strlen(text) , 10);
sprintf(temp,"%d", ulNotifiedValue);
HAL_UART_Transmit(&huart2, (uint8_t *)temp,strlen(temp) , 10);
HAL_UART_Transmit(&huart2, (uint8_t *)"\r\n",strlen("\r\n") , 10);
}
//HAL_UART_Transmit(&huart2, (uint8_t *)"\r\n",strlen("\r\n") , 10);
}
}
notification received : 1
notification received : 2
notification received : 4
the last notification value was : 2
void myTask1(void *pvParameters)
{
TickType_t xDelay = pdMS_TO_TICKS(1000);
TickType_t myLastUnblock;
myLastUnblock = xTaskGetTickCount();
uint32_t ulNotifiedValue;
char* text;
char temp[10];
xTaskNotify(myTask2Handle , (1<<0), eSetBits); //1
xTaskNotify(myTask2Handle , (1<<1), eSetBits); //2
xTaskNotifyStateClear(myTask2Handle); //notification value를 초기화 하진 않는다.
xTaskNotify(myTask2Handle , (1<<2), eSetBits); //2
vTaskDelay(1000);
/*
text = "the last notification value was : ";
sprintf(temp,"%d", ulNotifiedValue);
HAL_UART_Transmit(&huart2, (uint8_t *)text,strlen(text) , 10);
HAL_UART_Transmit(&huart2, (uint8_t *)temp,strlen(temp) , 10);
HAL_UART_Transmit(&huart2, (uint8_t *)"\r\n",strlen("\r\n") , 10);
*/
for(;;)
{
}
}
void myTask2(void *pvParameters)
{
TickType_t xDelay = pdMS_TO_TICKS(1000);
TickType_t myLastUnblock;
myLastUnblock = xTaskGetTickCount();
uint32_t ulNotifiedValue;
char temp[10];
char* text;
vTaskDelay(1000);
for(;;)
{
if( xTaskNotifyWait( 0, 0, &ulNotifiedValue, portMAX_DELAY) == pdTRUE)
{ //첫번째, mask to notification value that i wan to clear , 두번째 clearing on exit to the function(?)
text = "notification received : ";
HAL_UART_Transmit(&huart2, (uint8_t *)text,strlen(text) , 10);
sprintf(temp,"%d", ulNotifiedValue);
HAL_UART_Transmit(&huart2, (uint8_t *)temp,strlen(temp) , 10);
HAL_UART_Transmit(&huart2, (uint8_t *)"\r\n",strlen("\r\n") , 10);
}
//HAL_UART_Transmit(&huart2, (uint8_t *)"\r\n",strlen("\r\n") , 10);
}
}
notification received : 7
TaskHandle_t myTask1Handle = NULL;
TaskHandle_t myTask2Handle = NULL;
int notificationValue;
void myTask1(void *pvParameters)
{
TickType_t xDelay = pdMS_TO_TICKS(1000);
TickType_t myLastUnblock;
myLastUnblock = xTaskGetTickCount();
uint32_t ulNotifiedValue;
char* text;
char temp[10];
for(;;)
{
xTaskNotify(myTask2Handle , (1<<0), eSetBits); //1
vTaskDelay(1000);
xTaskNotify(myTask2Handle , (1<<1), eSetBits); //2
vTaskDelay(1000);
xTaskNotify(myTask2Handle , (1<<2), eSetBits); //2
vTaskDelay(1000);
}
}
void myTask2(void *pvParameters)
{
TickType_t xDelay = pdMS_TO_TICKS(1000);
TickType_t myLastUnblock;
myLastUnblock = xTaskGetTickCount();
uint32_t ulNotifiedValue;
char temp[10];
char* text;
vTaskDelay(1000);
for(;;)
{
if( xTaskNotifyWait( 0xFFFFFFFF, 0, &ulNotifiedValue, portMAX_DELAY) == pdTRUE)
{ //첫번째, mask to notification value that i wan to clear , 두번째 clearing on exit to the function(?)
if( ulNotifiedValue & (1<<0) )
{
HAL_UART_Transmit(&huart2, (uint8_t *)"red\r\n",strlen("red\r\n") , 10);
}else if( ulNotifiedValue & (1<<1) )
{
HAL_UART_Transmit(&huart2, (uint8_t *)"green\r\n",strlen("green\r\n") , 10);
}else if( ulNotifiedValue & (1<<2) )
{
HAL_UART_Transmit(&huart2, (uint8_t *)"blue\r\n",strlen("blue\r\n") , 10);
}
}
//HAL_UART_Transmit(&huart2, (uint8_t *)"\r\n",strlen("\r\n") , 10);
}
}
red
green
blue
red
green
blue
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