參數(shù)資料
型號(hào): LZ85194
廠商: Sharp Corporation
英文描述: IrDA Control Peripheral Engine(IrDA 控制外圍處理器)
中文描述: 紅外線控制周邊引擎(紅外線控制外圍處理器)
文件頁數(shù): 58/76頁
文件大?。?/td> 256K
代理商: LZ85194
LZ85194
52
IrDA Control Peripheral Engine User
s Guide
/******************** Event Queue Control Routine ****************************/
/******************************************************************************
* void initEvent(void)
*
* Description: Initialize variables of EventQueue.
*****************************************************************************/
void initEvent(void)
{
char i;
for(i = 0; i < MAX_EVENTQ_SIZE; i++)
EventQueue[i] = 0;
Q_cnt = 0;
Q_head = 0;
Q_tail = 0;
}
/******************************************************************************
*
*
*
*
*
*
*
*
*
*
*
*****************************************************************************/
void postEvent(char event)
{
if (Q_cnt > MAX_EVENTQ_SIZE)
return;
di();
Q_cnt++;
EventQueue[Q_tail++] = event;
if (Q_tail == MAX_EVENTQ_SIZE)
Q_tail = 0;
ei();
}
void postEvent(char event)
Argument: event = name of event
Description:
Post occurred event to Event Queue.
Event queue represent the array of global variable
EventQueue, and its size is MAX_EVENTQ_SIZE.
Manage with variables Q_head, Q_tail, Q_cnt.
If Q_head & Q_tail is MAX_EVENTQ_SIZE, return 0.
Queue is full if Q_cnt is MAX_EVENTQ_SIZE, then don't post
EventQueue.
In reality need error process, but now cut down.
/* disable interrupt */
/* enable interrupt */
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