FreeRTOS and Nios II in a Cyclone IV FPGA: the system executes the task but not responding to vTaskDelay()

First of all, thank you for your answer.

I have tested what you have mentioned, but I had to change this definition

 const TickType_t xDelay = 500 / portTICK_PERIOD_MS;

For this one

	const portTickType xDelay = 500 / portTICK_RATE_MS;

Because the re was no definition of TickType_t and portTICK_PERIOD_MS. Is it a problem?

This is my pormacro.h file where they are defined

#ifndef PORTMACRO_H
#define PORTMACRO_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include "sys/alt_irq.h"
 
/*-----------------------------------------------------------
 * Port specific definitions.  
 *
 * The settings in this file configure FreeRTOS correctly for the
 * given hardware and compiler.
 *
 * These settings should not be altered.
 *-----------------------------------------------------------
 */
 
/* Type definitions. */
#define portCHAR		char
#define portFLOAT		float
#define portDOUBLE		double
#define portLONG		long
#define portSHORT		short
#define portSTACK_TYPE	unsigned portLONG
#define portBASE_TYPE	long
 
#if( configUSE_16_BIT_TICKS == 1 )
	typedef unsigned portSHORT portTickType;
	#define portMAX_DELAY ( portTickType ) 0xffff
#else
	typedef unsigned portLONG portTickType;
	#define portMAX_DELAY ( portTickType ) 0xffffffff
#endif
/*-----------------------------------------------------------*/	
 
/* Architecture specifics. */
#define portSTACK_GROWTH				( -1 )
#define portTICK_RATE_MS				( ( portTickType ) 1000 / configTICK_RATE_HZ )		
#define portBYTE_ALIGNMENT				4
#define portNOP()                   	asm volatile ( "NOP" )
#define portCRITICAL_NESTING_IN_TCB		1
/*-----------------------------------------------------------*/	
 
extern void vTaskSwitchContext( void );
#define portYIELD()									asm volatile ( "trap" );
#define portEND_SWITCHING_ISR( xSwitchRequired ) 	if( xSwitchRequired ) 	vTaskSwitchContext()
 
 
/* Include the port_asm.S file where the Context saving/restoring is defined. */
__asm__( "\n\t.globl	save_context" );
 
/*-----------------------------------------------------------*/
 
extern void vTaskEnterCritical( void );
extern void vTaskExitCritical( void );
 
#define portDISABLE_INTERRUPTS()	alt_irq_disable_all()
#define portENABLE_INTERRUPTS()		alt_irq_enable_all( 0x01 );
#define portENTER_CRITICAL()        vTaskEnterCritical()
#define portEXIT_CRITICAL()         vTaskExitCritical()
/*-----------------------------------------------------------*/
 
/* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
 
#ifdef __cplusplus
}
#endif
 
#endif /* PORTMACRO_H */

I apologize for the indentation in freeRTOSConfig.h but the vTaskDelay wouldn't be available without this line

#define INCLUDE_vTaskDelay					1

I have tried different xDelay numbers, from 1, to 10000, but the systems keeps ignoring these pauses.

I want to add and correct some details of the behavior described above.

As far as I can see:

-The RS-232 terminal that is receiving all the messages coming out form the UART through the "imprimir" (print) function, are "T1" , "T2", "T1", "T2", so I understand that the system is inside that loop at a high speed, ignoring the vTakDelay and the delay functions.

-The 0x80 LED is on, so the interrupts are disabled

-The 0x01 and 0x02 LED's are both on at the same time, ignoring the blinking I was trying to produce with the delays functions

-The 0x04 LED is constant on too, so I can tell that the TIckHook is at least executed once, but it is not blinking, so I think the system never calls this interrupt again.

I do not understand why the program keeps ignoring both delays, the delay function and vTaskDelay.

Thank you again for your time.

Regards.