ARM Technical Support Knowledge Articles

START PROBLEM ON POWER-UP

Applies to: MCBSTR750 Evaluation Board

Answer


Information in this article applies to:


QUESTION

I have a MCBSTR750 Starter Kit and after power-up the program does not start properly. Is there a work-around?

ANSWER

The problem is due to a missing clock stablization phase in the STR750.s file. Just add the following code which lets the clock stabilize after a power-up:

Reset_Handler


; Wait for clock to stabilize --------------------------------------------------

                LDR     R1, =10000
WAIT            SUBS    R1, R1, #1
                BNE     WAIT


; Setup Global Configuration Register ------------------------------------------

Article last edited on: 2006-11-15 08:02:12

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