placing/accessing constants inside flash memory

while other person has difficulties to understand what the goal is and instead of helping are making the issue more complex!

I think you got it absolutely right.

while other person has difficulties to understand what the goal is and instead of helping are making the issue more complex!

I think you got it absolutely right.

I have an old version of this RTX_Blinky. I did some tests.

Modified Blinky.c =>

/*----------------------------------------------------------------------------
 *        Task 6 'lcd': LCD Control task
 *---------------------------------------------------------------------------*/
__task void lcd (void) {

  const unsigned char hello[] = "Hello";
  for (;;) {
    os_mut_wait(mut_GLCD, 0xffff);
    GLCD_SetBackColor(Blue);                           /* Set the Text Color */
    GLCD_SetTextColor(White);                          /* Set the Text Color */
    GLCD_DisplayString(0, 0, "  MCB1700 RL-ARM    ");
    GLCD_DisplayString(1, 0, "    RTX Blinky      ");
    GLCD_DisplayString(2, 0, "   http://www.keil.com     ");
    GLCD_DisplayString(2, 0, hello);
    os_mut_release(mut_GLCD);
    os_dly_wait (400);

    os_mut_wait(mut_GLCD, 0xffff);
    GLCD_SetBackColor(Blue);                           /* Set the Text Color */
    GLCD_SetTextColor(Red);                            /* Set the Text Color */
    GLCD_DisplayString(0, 0, "  MCB1700 RL-ARM    ");
    GLCD_DisplayString(1, 0, "    RTX Blinky      ");
    GLCD_DisplayString(2, 0, "   http://www.keil.com     ");
    os_mut_release(mut_GLCD);
    os_dly_wait (400);
  }
}

KEIL toolchain says:
-> Blinky.c(142): error: #167: argument of type "const unsigned char *" is incompatible with -> parameter of type "unsigned char *"

Modified Blinky.c, added a casting =>

__task void lcd (void) {

  const unsigned char hello[] = "Hello";
  for (;;) {
    os_mut_wait(mut_GLCD, 0xffff);
    GLCD_SetBackColor(Blue);                           /* Set the Text Color */
    GLCD_SetTextColor(White);                          /* Set the Text Color */
    GLCD_DisplayString(0, 0, "  MCB1700 RL-ARM    ");
    GLCD_DisplayString(1, 0, "    RTX Blinky      ");
    GLCD_DisplayString(2, 0, "   http://www.keil.com     ");
    GLCD_DisplayString(2, 0, (unsigned char *)hello);
    os_mut_release(mut_GLCD);
    os_dly_wait (400);

KEIL toolchain says:
-> ".\Obj\Blinky.axf" - 0 Error(s), 0 Warning(s).

--
I have learnt a lot from Per Westermark's articles. His articles are very detailed and well organized. I can understand that, some people just don't like/need so much details. But, to me, those are very valuable information. I would like to take this opportunity to thank Per Westermark again.

If one would ask: “What is the weather forecast for today?" And another one would provide extended "answer" including historical data and definitions of units and bunch of other very helpful and useful information; I won't consider this imaginary conversation as a question and answer. When the question about the weather has been asked the other person should probably at least ask: “Weather where?" Without this tiny detail the OP question could not be answered. That is actually all my point.
Thank you for listening :)