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Continue 78K0R development.

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Richard Barry 2009-02-05 13:01:37 +00:00
parent 617ddbb61f
commit e311bdb650
8 changed files with 226 additions and 151 deletions
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218
Demo/NEC_78K0R_IAR/main.c
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@ -47,6 +47,34 @@
licensing and training services.
*/
/*
* Creates all the demo application tasks, then starts the scheduler. The WEB
* documentation provides more details of the standard demo application tasks.
* In addition to the standard demo tasks, the following tasks and tests are
* defined and/or created within this file:
*
* "Check" task - This only executes every three seconds but has a high priority
* to ensure it gets processor time. Its main function is to check that all the
* standard demo tasks are still operational. If everything is running as
* expected then the check task will toggle an LED every 3 seconds. An error
* being discovered in any task will cause the toggle rate to increase to 500ms.
*
* "Reg test" tasks - These fill the registers with known values, then check
* that each register still contains its expected value. Each task uses
* different values. The tasks run with very low priority so get preempted very
* frequently. A register containing an unexpected value is indicative of an
* error in the context switching mechanism.
*
*
* Also in addition to the standard demo tasks is a button push task. This is
* a very basic task that is included as an example of how to write an interrupt
* service routine that interacts with a task. The button on the target board
* is used to generate an interrupt that 'gives' a semaphore in order to unblock
* a task. In doing so the task is synchronised with the interrupt. Each time
* the task unblocks it simply toggles an LED before entering the Blocked state
* again to wait for the next button push.
*/
/* Standard includes. */
#include <stdlib.h>
#include <string.h>
@ -55,8 +83,7 @@
#include "FreeRTOS.h"
#include "task.h"
/* Demo file headers. */
#include "int78K0R.h"
/* Standard demo file headers. */
#include "PollQ.h"
#include "semtest.h"
#include "GenQTest.h"
@ -77,57 +104,91 @@
#define mainNO_ERROR_TOGGLE_PERIOD ( ( portTickType ) 3000 / portTICK_RATE_MS )
#define mainERROR_TOGGLE_PERIOD ( ( portTickType ) 500 / portTICK_RATE_MS )
#define LED00 P7_bit.no6
#define LED01 P7_bit.no7
/* The LED toggled by the check task. */
#define mainLED_0 P7_bit.no6
/* A value that is passed in as the parameter to the 'check' task. This is done
purely to check that the parameter passing mechanism is functioning correctly. */
#define mainCHECK_PARAMETER_VALUE ( 0x345678 )
/*-----------------------------------------------------------*/
/*
* 78K0R/Kx3 Option Byte Definition
* watchdog disabled, LVI enabled, OCD interface enabled
* The function that defines the 'check' task as described at the top of this
* file.
*/
__root __far const unsigned portCHAR OptionByte[OPT_BYTES_SIZE] @ 0x00C0 =
static void vErrorChecks( void *pvParameters );
/*
* This function is called from the C startup routine to setup the processor -
* in particular the clock source.
*/
int __low_level_init(void);
/*
* Functions that define the RegTest tasks as described at the top of this file.
*/
extern void vRegTest1( void *pvParameters );
extern void vRegTest2( void *pvParameters );
/*
* Function that defines the button push task as described at the top of this
* file.
*/
extern void vButtonTask( void *pvParameters );
/*-----------------------------------------------------------*/
/* If an error is discovered by one of the RegTest tasks then this flag is set
to pdFAIL. The 'check' task then inspects this flag to detect errors within
the RegTest tasks. */
static short sRegTestStatus = pdPASS;
/* 78K0R Option Byte Definition. Watchdog disabled, LVI enabled, OCD interface
enabled. */
__root __far const unsigned portCHAR OptionByte[] @ 0x00C0 =
{
WATCHDOG_DISABLED, LVI_ENABLED, RESERVED_FF, OCD_ENABLED
};
/* Security Byte Definition */
__root __far const unsigned portCHAR SecuIDCode[SECU_ID_SIZE] @ 0x00C4 =
/* Security byte definition */
__root __far const unsigned portCHAR SecuIDCode[] @ 0x00C4 =
{
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
};
/* The task function for the "Check" task. */
static void vErrorChecks( void *pvParameters );
/*-----------------------------------------------------------*/
/* 78K0R/Kx3 low level init Initialization of the System Clock */
int __low_level_init(void);
extern void vRegTest1( void *pvParameters );
extern void vRegTest2( void *pvParameters );
extern void vButtonTask( void *pvParameters );
static short sRegTestStatus = pdPASS;
portSHORT main( void )
short main( void )
{
/* Create the standard demo tasks. */
/* Creates all the tasks, then starts the scheduler. */
/* First create the 'standard demo' tasks. These are used to demonstrate
API functions being used and also to test the kernel port. More information
is provided on the FreeRTOS.org WEB site. */
vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
vStartSemaphoreTasks(mainSEMTEST_PRIORITY);
vStartGenericQueueTasks( mainGEN_QUEUE_PRIORITY );
vStartDynamicPriorityTasks();
vCreateBlockTimeTasks();
/* Create the button push task as described at the top of this file. */
xTaskCreate( vButtonTask, "Button", configMINIMAL_STACK_SIZE, NULL, mainBUTTON_PRIORITY, NULL );
/* Create the tasks defined within this file. */
xTaskCreate( vErrorChecks, "Check", configMINIMAL_STACK_SIZE, (void*)0x12345678, mainCHECK_TASK_PRIORITY, NULL );
/* Create the RegTest tasks as described at the top of this file. */
xTaskCreate( vRegTest1, "Reg1", configMINIMAL_STACK_SIZE, NULL, 0, NULL );
xTaskCreate( vRegTest2, "Reg2", configMINIMAL_STACK_SIZE, NULL, 0, NULL );
/* Create the 'check' task as described at the top of this file. */
xTaskCreate( vErrorChecks, "Check", configMINIMAL_STACK_SIZE, ( void* )mainCHECK_PARAMETER_VALUE, mainCHECK_TASK_PRIORITY, NULL );
/* Finally start the scheduler running. */
vTaskStartScheduler();
/* If this line is reached then vTaskStartScheduler() returned because there
was insufficient heap memory remaining for the idle task to be created. */
for( ;; );
}
/*-----------------------------------------------------------*/
@ -136,19 +197,24 @@ static void vErrorChecks( void *pvParameters )
{
portTickType xToggleRate = mainNO_ERROR_TOGGLE_PERIOD, xLastWakeTime;
/* The pointer will only actually be either 3 or 2 bytes, depending on the
memory model. */
if( pvParameters != ( void * ) 0x12345678 )
/* Ensure the parameter was passed in as expected. This is just a test of
the kernel port, the parameter is not actually used for anything. The
pointer will only actually be either 3 or 2 bytes, depending on the memory
model. */
if( pvParameters != ( void * ) mainCHECK_PARAMETER_VALUE )
{
xToggleRate = mainERROR_TOGGLE_PERIOD;
}
/* Initialise xLastWakeTime before it is used. After this point it is not
written to directly. */
xLastWakeTime = xTaskGetTickCount();
/* Cycle for ever, delaying then checking all the other tasks are still
operating without error. */
for( ;; )
{
/* Wait until it is time to check all the other tasks again. */
vTaskDelayUntil( &xLastWakeTime, xToggleRate );
if( xAreGenericQueueTasksStillRunning() != pdTRUE )
@ -181,121 +247,114 @@ portTickType xToggleRate = mainNO_ERROR_TOGGLE_PERIOD, xLastWakeTime;
xToggleRate = mainERROR_TOGGLE_PERIOD;
}
/* Toggle the LED. */
LED00 = !LED00;
/* Toggle the LED. The toggle rate will depend on whether or not an
error has been found in any tasks. */
mainLED_0 = !mainLED_0;
}
}
/*-----------------------------------------------------------*/
int __low_level_init(void)
{
unsigned portCHAR resetflag = RESF;
unsigned portCHAR ucResetFlag = RESF;
portDISABLE_INTERRUPTS();
/*
* Clock Configuration:
* In this port, to use the internal high speed clock source of the microcontroller
* define the configCLOCK_SOURCE as 1 in FreeRTOSConfig.h. To use an external
* clock define configCLOCK_SOURCE as 0.
*/
/* Clock Configuration:
In this port, to use the internal high speed clock source of the microcontroller
define the configCLOCK_SOURCE as 1 in FreeRTOSConfig.h. To use an external
clock define configCLOCK_SOURCE as 0. */
#if configCLOCK_SOURCE == 1
{
/*
* Set XT1 and XT2 in Input Port Mode
* Set X1 and X2 in Input Port Mode
* High speed oszillation frequency 2MHz <= fMX <= 10MHz
*/
/* Set XT1 and XT2 in Input Port Mode
Set X1 and X2 in Input Port Mode
High speed oscillator frequency 2MHz <= fMX <= 10MHz */
CMC = 0x00;
/* X1 external oszillation stopped */
/* X1 external oszillation stopped. */
MSTOP = 1;
/* enable internal high speed oszillation */
/* Enable internal high speed oszillation. */
HIOSTOP = 0;
MCM0 = 0;
/* stop internal subsystem clock */
/* Stop internal subsystem clock. */
XTSTOP = 1;
/* Set clock speed */
/* Set clock speed. */
CSS = 0;
CKC &= (unsigned portCHAR)~0x07;
CKC |= 0x00;
}
#else
{
/*
* XT1 and XT2 pin in input port mode
* X1 and X2 pin in crystal resonator mode
* High speed oszillation frequency 10MHz < fMX <= 20MHz
*/
/* XT1 and XT2 pin in input port mode
X1 and X2 pin in crystal resonator mode
High speed oszillation frequency 10MHz < fMX <= 20MHz */
CMC = 0x41;
/* Set oscillation stabilization time */
/* Set oscillation stabilization time. */
OSTS = 0x07;
/* Set speed mode: fMX > 10MHz for Flash memory high speed operation */
/* Set speed mode: fMX > 10MHz for Flash memory high speed operation. */
OSMC = 0x01;
/*
* Start up X1 oscillator operation
* Internal high-speed oscillator operating
*/
/* Start up X1 oscillator operation
Internal high-speed oscillator operating. */
MSTOP = 0;
/* Check oscillation stabilization time status */
/* Check oscillation stabilization time status. */
while(OSTC < 0x07)
{
/* wait until X1 clock stabilization time */
/* Wait until X1 clock stabilization time. */
portNOP();
}
/* Switch CPU clock to X1 oscillator */
/* Switch CPU clock to X1 oscillator. */
MCM0 = 1;
while(MCS != 1)
{
/* wait until CPU and peripherals operate with fX1 clock */
/* Wait until CPU and peripherals operate with fX1 clock. */
portNOP();
}
/* Stop the internal high-speed oscillator operation */
/* Stop the internal high-speed oscillator operation. */
HIOSTOP = 1;
/* Stop the XT1 oscillator operation */
/* Stop the XT1 oscillator operation. */
XTSTOP = 1;
/*
* operating frequency f = fx
* Change clock generator setting, if necessary
*/
/* Operating frequency f = fx
Change clock generator setting, if necessary. */
CKC &= 0xF8;
/* From here onwards the X1 oscillator is supplied to the CPU */
/* From here onwards the X1 oscillator is supplied to the CPU. */
}
#endif
/* LED Port Initialization - set Port Register */
/* LED port initialization - set port register. */
P7 = 0x80;
/* Set Port Mode Register */
/* Set port mode register. */
PM7 = 0x3F;
/* Switch Pin Initialization - enable pull-up resistor */
/* Switch pin initialization - enable pull-up resistor. */
PU12_bit.no0 = 1;
/* INTP0 is used by the button on the target board. */
/* INTP0 disable */
/* INTP0 disable. */
PMK0 = 1;
/* INTP0 IF clear */
/* INTP0 IF clear. */
PIF0 = 0;
EGN0_bit.no0 = 1;
/* INTP0 priority low */
/* INTP0 priority low. */
PPR10 = 0;
PPR00 = 1;
/* enable ext. INTP0 interrupt */
/* Enable ext. INTP0 interrupt */
PMK0 = 0;
return pdTRUE;
@ -304,13 +363,20 @@ unsigned portCHAR resetflag = RESF;
void vRegTestError( void )
{
/* Called by the RegTest tasks if an error is found. lRegTestStatus is
inspected by the check task. */
sRegTestStatus = pdFAIL;
/* Do not return from here as the reg test tasks clobber all registers so
function calls may not function correctly. */
for( ;; );
}
/*-----------------------------------------------------------*/
void vApplicationStackOverflowHook( void )
{
/* This will get called if an overflow is detected in the stack of a task.
Inspect pxCurrentTCB to see which was the offending task. */
for( ;; );
}