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RTX bugs in Atmel AT89C51

John Lin

Hi~ All
I have write a RTX51 test program with AT89C51, see following code:

#include <reg51.h>
#include <rtx51tny.h>
void init (void) _task_ 0 { os_create_task (1);
os_create_task (2);
}
void LED (void) _task_ 1 {
P2=0;
}
void LED2 (void) _task_ 2 {
P2=1;
}

and this compile is OK, but when debug run something error: error message as below:
*** error 65: access violation at I:0xFE : no 'write' permission

but when I change to at89c52, the same code is OK. So is there something wrong in RTX51?

Parents
  • 0

    Hi.

    RTX51 tiny required 256Bytes Internal RAM. Only 89c52 or higher. One task 3*IDATA. RTX51 Full need external XDATA. Your definitions task is incorrect.

    Good bye.

    void Job1(void) _task_ 1
{
 while(1)
  {
   P3=~P3;
  }
}

void Job2(void) _task_ 2
{
 while(1)
  {
   P1=~P1;
  }
}

void Job0(void) _task_ 0
{
 os_create_task(1);
 os_create_task(2);
 os_delete_task(0);
}

Reply
  • 0

    Hi.

    RTX51 tiny required 256Bytes Internal RAM. Only 89c52 or higher. One task 3*IDATA. RTX51 Full need external XDATA. Your definitions task is incorrect.

    Good bye.

    void Job1(void) _task_ 1
{
 while(1)
  {
   P3=~P3;
  }
}

void Job2(void) _task_ 2
{
 while(1)
  {
   P1=~P1;
  }
}

void Job0(void) _task_ 0
{
 os_create_task(1);
 os_create_task(2);
 os_delete_task(0);
}

Children