I tried to run LCD software in Keil for STM32, but I got

*** error 65: access violation at 0x60000000 : no 'write' permission

Do you know how to solve that error ? I saw that I can create a MAP, but it didn't work

MAP  0x00000000, 0x70000000  READ WRITE  // allow R/W access to IO space

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(Click for full resolution image)

from this definition :

#define LCD_REG              (*((volatile unsigned short *) 0x60000000)) /* RS = 0 */
#define LCD_RAM              (*((volatile unsigned short *) 0x60020000)) /* RS = 1 */

Thanks for reading

I'm using simulator enter image description here

  • \$\begingroup\$ i followed this video to resolve the same issue related to access violation when i try to use keil in simulator mode youtu.be/gEedJNB2WfM \$\endgroup\$ – user102299 Mar 3 '16 at 5:29

Try going to:

Project -> Options for Target '<your target>' -> Debug tab

and select the debugger option. enter image description here

  • 1
    \$\begingroup\$ then what should I do ? I don't have ULINK, can't I use simulator ? \$\endgroup\$ – Rick Ant Feb 25 '12 at 9:48
  • \$\begingroup\$ I was under impression that you wanted to run the code on a microcontroller, in which case you would choose an appropriate debugger from the list (not necessarily a ulink). I have not tried using a simulator yet, so won't be able to help with that, sorry. \$\endgroup\$ – Armandas Feb 25 '12 at 14:45
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    \$\begingroup\$ I'm not using ULink as my debugger, I'm using simulator \$\endgroup\$ – Rick Ant Feb 27 '12 at 1:32
  • \$\begingroup\$ So I need to have ULink or Jlink and the board..? \$\endgroup\$ – Rick Ant Mar 12 '12 at 12:30
  • \$\begingroup\$ @RickAnt - you should not accept an answer that does not solve your problem. \$\endgroup\$ – Chris Stratton Nov 10 '15 at 16:05

If you want to use the simulator:

  • select the simulator in project properties on the debug page
  • start a debugging session. Don't run the code yet
  • go to Debug -> Memory Map... and manually map the ranges the simulator cannot find.

For example:

enter image description here

  • \$\begingroup\$ Welcome to EE.SE, this is not a forum. Your answer is better suited as a comment as it doesn't aim to solve the given question. \$\endgroup\$ – Funkyguy Aug 20 '15 at 19:29
  • \$\begingroup\$ This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post - you can always comment on your own posts, and once you have sufficient reputation you will be able to comment on any post. \$\endgroup\$ – Daniel Grillo Aug 20 '15 at 20:39
  • \$\begingroup\$ @DanielGrillo - actually, this is an attempted answer to the specific part of the poster's question which concerned their inability to enact a map. Doing so may or may not solve the problem, but this is an entirely appropriate response to the question. \$\endgroup\$ – Chris Stratton Nov 10 '15 at 16:03
  • \$\begingroup\$ @ChrisStratton Have you seen it before Dmitry's edition? Now is much better to understand but at that time I couldn't. \$\endgroup\$ – Daniel Grillo Nov 10 '15 at 17:01
  • \$\begingroup\$ The information content was the same. Both before and after the edit, the answer is targeted at someone knee-deep in the problem, not an uninvolved reader. \$\endgroup\$ – Chris Stratton Nov 10 '15 at 17:04

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