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Continue 78K0R development.

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This commit is contained in:
Richard Barry 2009-02-03 21:09:16 +00:00
parent 7acae9e570
commit 46425b4099
3 changed files with 64 additions and 75 deletions
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53
Source/portable/IAR/78K0R/port.c
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@ -37,13 +37,13 @@
Please ensure to read the configuration and relevant port sections of the
online documentation.
http://www.FreeRTOS.org - Documentation, latest information, license and
http://www.FreeRTOS.org - Documentation, latest information, license and
contact details.
http://www.SafeRTOS.com - A version that is certified for use in safety
http://www.SafeRTOS.com - A version that is certified for use in safety
critical systems.
http://www.OpenRTOS.com - Commercial support, development, porting,
http://www.OpenRTOS.com - Commercial support, development, porting,
licensing and training services.
*/
@ -67,7 +67,7 @@
* |--------------------- Zero Flag set
* ---------------------- Global Interrupt Flag set (enabled)
*/
#define portPSW (( portSTACK_TYPE ) 0xC600)
#define portPSW (0xc6000000UL)
/* We require the address of the pxCurrentTCB variable, but don't want to know
any details of its type. */
@ -95,19 +95,19 @@ volatile unsigned portSHORT usCriticalNesting = portINITIAL_CRITICAL_NESTING;
__interrupt void MD_INTTM05( void );
/*
* Sets up the periodic ISR used for the RTOS tick.
* Sets up the periodic ISR used for the RTOS tick.
*/
static void prvSetupTimerInterrupt( void );
/*-----------------------------------------------------------*/
/*
* Initialise the stack of a task to look exactly as if a call to
/*
* Initialise the stack of a task to look exactly as if a call to
* portSAVE_CONTEXT had been called.
*
*
* See the header file portable.h.
*/
portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE pxCode, void *pvParameters )
{
{
unsigned long *pulLocal;
#if configMEMORY_MODE == 1
@ -116,30 +116,31 @@ unsigned long *pulLocal;
pxTopOfStack--;
pulLocal = ( unsigned long * ) pxTopOfStack;
*pulLocal = ( unsigned long ) pvParameters;
pxTopOfStack--;
pxTopOfStack--;
/* Dummy values on the stack because there normaly the return address
of the funtion is written. */
/* Dummy values on the stack because there normaly the return address
of the funtion is written. */
*pxTopOfStack = ( portSTACK_TYPE ) 0xcdcd;
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0xcdcd;
pxTopOfStack--;
pxTopOfStack--;
/* Task function start address. */
pulLocal = ( unsigned long * ) pxTopOfStack;
*pulLocal = ( unsigned long ) pxCode;
pxTopOfStack--;
/* Initial PSW value. */
*pxTopOfStack = portPSW;
// *pxTopOfStack = portPSW;
pxTopOfStack--;
/* Task function start address. */
pulLocal = ( unsigned long * ) pxTopOfStack;
*pulLocal = ( ( ( unsigned long ) pxCode ) | portPSW );
pxTopOfStack--;
/* Next general purpose register AX. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x1111;
*pxTopOfStack = ( portSTACK_TYPE ) 0x1111;
pxTopOfStack--;
}
#else
#else
{
pxTopOfStack--;
@ -156,7 +157,7 @@ unsigned long *pulLocal;
*pxTopOfStack = ( portSTACK_TYPE ) pvParameters;
pxTopOfStack--;
}
#endif
#endif
/* HL. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x2222;
@ -173,7 +174,7 @@ unsigned long *pulLocal;
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) portNO_CRITICAL_SECTION_NESTING;
/*
/*
* Return a pointer to the top of the stack we have generated so this can
* be stored in the task control block for the task.
*/
@ -203,8 +204,8 @@ void vPortEndScheduler( void )
/*-----------------------------------------------------------*/
/*
* Hardware initialisation to generate the RTOS tick. This uses Channel 5 of
* the Timer Array Unit (TAU). Any other Channel could also be used.
* Hardware initialisation to generate the RTOS tick. This uses Channel 5 of
* the Timer Array Unit (TAU). Any other Channel could also be used.
*/
static void prvSetupTimerInterrupt( void )
{
@ -214,7 +215,7 @@ static void prvSetupTimerInterrupt( void )
/* To configure the Timer Array Unit all Channels have to first be stopped. */
TT0 = 0xff;
/* Interrupt of Timer Array Unit Channel 5 is disabled to set the interrupt
/* Interrupt of Timer Array Unit Channel 5 is disabled to set the interrupt
priority. */
TMMK05 = 1;