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AM3517 GPTIMER issue?

Michi Yama
Guru 10030 points
Other Parts Discussed in Thread: AM3517

Hi,

My customer has one issue with AM3517 system.

Customer uses unique board.

Now their system has GPTIMER issue.

Customer system read the key matrix data by using GPTIMER4 and 5 of AM3517. In customer's case, the counting time of GPTIMER is different fromr register setting.

GPTIMER4 : setting value : 16ms,  measurement value : 28ms

GPTIMER5 : setting value  : 500us,  measurement value : 680us, 580us

For detailed information, please see the below.GPTIMER4_5_issue.ppt

I need your advice for this symptom.

And I have one more question.

When the overflow interrupt is disabled in bit1 of TIER register, "auto reload" function does not work even though bit1 of TCLR register is setted?

I appreciate your quick reply.

Best regards,

Michi