/*Begin Function:main**********************************************************
Description : The Entrance Of The OS.Must Be Set Here.
Input : Void.
Output : int-dummy.
******************************************************************************/
int main(void) //The main function will only be run ONCE.
{
//_Sys_Memory_Init(APP_AVAIL_MEM_START,APP_AVAIL_MEM_END); //Not 0x20005000,Or It Will Cause A Implicit Hard Fault.
_Sys_Kernel_Load(0x20004F50); //The Timeslice Is Dummy.The Init Process Use A Different Way of Context Switching.
_Sys_Proc_Load(_Sys_Arch,0x20004E00,1,2,(u8*)"Arch"); //The Arch Process,Which Does Some Chores.Its PID is 1,forever.
_Sys_Proc_Load(Task1,0x20004C00,2,2,(u8*)"Main_GUI"); //The GUI Process,Normally.
_Sys_Proc_Load(Task2,0x20004A00,3,2,(u8*)"Driver_1"); //The Driver Process 1,Normally.
//_Sys_Proc_Load(Task3,0x20003900,4,2,(u8*)"Driver_2"); //The Driver Process 2,Normally.
_Sys_Systick_Init(0x00010000); //Initialize The System Clock.
_Sys_Start(); //Start From The First PID.
while(1); //Dead Loop.
//return(0); //Unreachable Statement.Commented Out.
}
/*Begin Function:_Sys_Scheduler_Init*******************************************
Description : The system scheduler initialization function.
Input : None.
Output : None.
Return : None.
******************************************************************************/
void _Sys_Scheduler_Init(void)
{
cnt_t Count;
/* Systemis still booting */
System_Status.Kernel.Boot_Done=FALSE;
/* Clear the statistic variable for the kernel */
Sys_Memset((ptr_int_t)(&System_Status),0,sizeof(struct Sys_Status_Struct));
/* Initialize the system clock.*/
_Sys_Systick_Init(MIN_TIMESLICE_TICK);
/* Initialize the priority list. We do this to facilitate bidirectional search.
* We can get the pointer to this priority level when we have the priority level
* number, and vice versa.
*/
for(Count=0;Count<MAX_PRIO_NUM;Count++)
{
Prio_List[Count].Priority=Count;
Prio_List[Count].Proc_Num=0;
Sys_Create_List((struct List_Head*)&(Prio_List[Count].Running_List));
}
Sys_Create_List((struct List_Head*)(&Prio_List_Head));
/* Initialize the list for each possible task slot */
for(Count=0;Count<MAX_PROC_NUM;Count++)
{
PCB[Count].Status.Sleep_Count=1;
PCB[Count].Status.Status_Lock_Count=0;
Sys_Create_List((struct List_Head*)(&(PCB[Count].Head)));
}
/* Clear the pending system scheduling count */
Pend_Sched_Cnt=0;
}
