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frolic

Junior Boarder

2006/12/20 08:55

Re:How to activate SysTick?

It was a typo error. I was altering the statup.s file. Since you have altered the file could you please show me what you changed. Your main program

while (1);// waiting for interrupts

You manually did something and it worked. I would like to do the same thing.

It would be much appreciated.

Post edited by: frolic, at: 2006/12/20 08:59

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cirip

Senior Boarder

2006/12/20 09:43

Re:How to activate SysTick?

Hi,

This is excerpt from my Startup.s file around the SysTick interrupt vector:

Code:

         DCD     IntDefaultHandler           ; PendSV Handler
        EXTERN    IntSysTick
        DCD     IntSysTick                   ; SysTick Handler
;        DCD     IntDefaultHandler           ; SysTick Handler
        DCD     IntDefaultHandler           ; GPIO Port A

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frolic

Junior Boarder

2006/12/20 10:10

Re:How to activate SysTick?

It works! Thanks.

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frolic

Junior Boarder

2006/12/24 09:53

Re:How to activate SysTick?

I created a new project rather than build from one of the older projects. Now I get the Error 65 access violation no write or read permission. In the new project a section memory map now is highlighted but it will not aept r/w to 0xE000E004. I see that you had also received this error. How did you resolve it. It seems I spend most of my time on these bottlenecks. Is there a manual that explains this. I did a ggogle search and saw others had error violations but scanning I could not see how to correct. In this form it was mentioned to find where r/w are to be placed in simulator but I gave up. Since you have been helpful in past could you direct me again.
frolic

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cirip

Senior Boarder

2006/12/24 10:35

Re:How to activate SysTick?

Not sure what Error65 means. All I can tell is that it only showed up when I tried to use the simulator in order to preserve the flash. Now, I test all the changes on the Eval Board and the error hasn't appeared again.

Cirip

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frolic

Junior Boarder

2006/12/26 10:41

Re:How to activate SysTick?

Thans again.

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