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First task starting.

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This commit is contained in:
Richard Barry 2008-08-08 09:41:33 +00:00
parent 3f2375c020
commit 4953c7d030
5 changed files with 88 additions and 471 deletions
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76
Source/portable/GCC/ColdFire_V2/port.c
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@ -52,18 +52,92 @@
#include "FreeRTOS.h"
#include "task.h"
#define portINITIAL_FORMAT_VECTOR ( ( portSTACK_TYPE ) 0x4000 )
/* Supervisor mode set. */
#define portINITIAL_STATUS_REGISTER ( ( portSTACK_TYPE ) 0x2000)
static unsigned portLONG ulCriticalNesting = 0x9999UL;
portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE * pxTopOfStack, pdTASK_CODE pxCode, void *pvParameters )
{
return NULL;
*pxTopOfStack = ( portSTACK_TYPE ) pvParameters;
pxTopOfStack--;
*pxTopOfStack = (portSTACK_TYPE) 0xDEADBEEF;
pxTopOfStack--;
/* Exception stack frame starts with the return address. */
*pxTopOfStack = ( portSTACK_TYPE ) pxCode;
pxTopOfStack--;
*pxTopOfStack = ( portINITIAL_FORMAT_VECTOR << 16UL ) | ( portINITIAL_STATUS_REGISTER );
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x0; /*FP*/
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0xA5A5A5A5;
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0xA4A4A4A4;
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0xA3A3A3A3;
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0xA2A2A2A2;
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0xA1A1A1A1;
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0xA0A0A0A0;
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0xD7D7D7D7;
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0xD6D6D6D6;
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0xD5D5D5D5;
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0xD4D4D4D4;
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0xD3D3D3D3;
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0xD2D2D2D2;
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0xD1D1D1D1;
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0xD0D0D0D0;
return pxTopOfStack;
}
/*-----------------------------------------------------------*/
portBASE_TYPE xPortStartScheduler( void )
{
ulCriticalNesting = 0UL;
vApplicationSetupInterrupts();
asm volatile(
"move.l pxCurrentTCB, %sp \n\t"\
"move.l (%sp), %sp \n\t"\
"movem.l (%sp), %d0-%fp \n\t"\
"lea.l %sp@(60), %sp \n\t"\
"rte "
);
return pdFALSE;
}
/*-----------------------------------------------------------*/