FW: Suspend mode measuring

[ALLEN_CHANG at fic.com.tw]

f.y.i

 

  Best Wishes~

______________________________________________

Allen Chang ( 張 吉 隆 )

First International Computer Inc.
7F, No.300, Yang Guang St., NeiHu, Taipei, 114, Taiwan
Tel: +886-2-8751-8751 Ext: 6171

Fax: +886-2-8751-8739

Email:allen_chang at fic.com.tw

________________________________

From: ALLEN_CHANG (張吉隆) 
Sent: Friday, February 01, 2008 6:56 PM
To: matt_hsu at openmoko.org; Werner Almesberger; 'Andy Green'
Cc: TIM_LEE (李國平經理); Wolfgang Spraul; TONY_TU [塗能宇專案經理]
Subject: Suspend mode measuring

 

Dear All:

Matt give a kernel and help me to measuring the power consumption of GTA02 suspend mode.

I measuring these LDO output (CORE_1V3,LED+,SD_3V3,GENSOR_3V3,CODEC_3V3,BT_3V2,RF_3V,LCM_3V).

They all turn off and they are all 0V. IO_1V8 is almost 1mA and IO_3V3 is 8mA.

I found that VBAT (GSM power) has some voltage (2.0v), but the GSM power switching (U1705) is off.

I think that some pins connect to GSM supply the GSM voltage.

Therefore, I do some research in S3C2442 GPIO configure. 

When these powers (BT, GSP, GSM) is off, I can force on power consumptions of S3C2442 part.

The attached is my suggestion for measuring power consumptions. 

  Best Wishes~

______________________________________________

Allen Chang ( 張 吉 隆 )

First International Computer Inc.
7F, No.300, Yang Guang St., NeiHu, Taipei, 114, Taiwan
Tel: +886-2-8751-8751 Ext: 6171

Fax: +886-2-8751-8739

Email:allen_chang at fic.com.tw

 

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