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如下是uCGUI在在uCOS下时相关的参考代码
/*
*********************************************************************************************************
* uC/GUI V3.98
* Universal graphic software for embedded applications
*
* (c) Copyright 2002, Micrium Inc., Weston, FL
* (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
* 礐/GUI is protected by international copyright laws. Knowledge of the
* source code may not be used to write a similar product. This file may
* only be used in accordance with a license and should not be redistributed
* in any way. We appreciate your understanding and fairness.
*
---Author-Explanation
*
* 1.00.00 020519 JJL First release of uC/GUI to uC/OS-II interface
*
*
* Known problems or limitations with current version
*
* None.
*
*
* Open issues
*
* None
*********************************************************************************************************
*/
#include <ucos_ii.h>
#include "GUI_Private.H"
#include "stdio.H"
/*
*********************************************************************************************************
* GLOBAL VARIABLES
*********************************************************************************************************
*/
static OS_EVENT *DispSem;
static OS_EVENT *EventMbox;
static OS_EVENT *KeySem;
static int KeyPressed;
static char KeyIsInited;
/*
*********************************************************************************************************
* TIMING FUNCTIONS
*
* Notes: Some timing dependent routines of uC/GUI require a GetTime and delay funtion.
* Default time unit (tick), normally is 1 ms.
*********************************************************************************************************
*/
int GUI_X_GetTime (void)
{
return ((int)OSTimeGet());
}
void GUI_X_Delay (int period)
{
INT32U ticks;
ticks = (period * 1000) / OS_TICKS_PER_SEC;
OSTimeDly((INT16U)ticks);
}
/*
*********************************************************************************************************
* GUI_X_ExecIdle()
*********************************************************************************************************
*/
void GUI_X_ExecIdle (void)
{
OS_X_Delay(1);
}
/*
*********************************************************************************************************
* MULTITASKING INTERFACE FUNCTIONS
*
* Note(1): 1) The following routines are required only if uC/GUI is used in a true multi task environment,
* which means you have more than one thread using the uC/GUI API. In this case the #define
* GUI_OS 1 needs to be in GUIConf.h
*********************************************************************************************************
*/
void GUI_X_InitOS (void)
{
DispSem = OSSemCreate(1);
EventMbox = OSMboxCreate((void *)0);
}
void GUI_X_Lock (void)
{
INT8U err;
OSSemPend(DispSem, 0, &err);
}
void GUI_X_Unlock (void)
{
OSSemPost(DispSem);
}
U32 GUI_X_GetTaskId (void)
{
return ((U32)(OSTCBCur->OSTCBPrio));
}
/*
*********************************************************************************************************
* GUI_X_WaitEvent()
* GUI_X_SignalEvent()
*********************************************************************************************************
*/
void GUI_X_WaitEvent (void)
{
INT8U err;
(void)OSMboxPend(EventMbox, 0, &err);
}
void GUI_X_SignalEvent (void)
{
(void)OSMboxPost(EventMbox, (void *)1);
}
/*
*********************************************************************************************************
* KEYBOARD INTERFACE FUNCTIONS
*
* Purpose: The keyboard routines are required only by some widgets.
* If widgets are not used, they may be eliminated.
*
* Note(s): If uC/OS-II is used, characters typed into the log window will be placed in the keyboard buffer.
* This is a neat feature which allows you to operate your target system without having to use or
* even to have a keyboard connected to it. (useful for demos !)
*********************************************************************************************************
*/
static void CheckInit (void)
{
if (KeyIsInited == FALSE) {
KeyIsInited = TRUE;
GUI_X_Init();
}
}
void GUI_X_Init (void)
{
KeySem = OSSemCreate(0);
}
int GUI_X_GetKey (void)
{
int r;
r = KeyPressed;
CheckInit();
KeyPressed = 0;
return (r);
}
int GUI_X_WaitKey (void)
{
int r;
INT8U err;
CheckInit();
if (KeyPressed == 0) {
OSSemPend(KeySem, 0, &err);
}
r = KeyPressed;
KeyPressed = 0;
return (r);
}
void GUI_X_StoreKey (int k)
{
KeyPressed = k;
OSSemPost(KeySem);
} |
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发表于 2011-3-3 13:44:50
楼主
