AnsweredAssumed Answered

iMX28 Battery Charger not charging

Question asked by Martin Hollenweger on Oct 21, 2015
Latest reply on Oct 27, 2015 by Martin Hollenweger

I'm having problems to enable the Battery charger on my custom Board (Running Windows CE 6.0)

The problem is that the charge current is only about 45mA@3.77V (I'm setting the Charger to 500mA, having a stable +5V Supply  with up to 1.25A)

The HW_POWER registers are:

BatteryVoltage = 3776

DieTemperature = 41

Charge Current: 0x28

HW_POWER_CTRL = 0x7054C

HW_POWER_5VCTRL = 0x2403F117

HW_POWER_MINPWR = 0x40

HW_POWER_CHARGE = 0x128

HW_POWER_VDDDCTRL = 0x2071D

HW_POWER_VDDACTRL = 0x270C

HW_POWER_VDDIOCTRL = 0x270A

HW_POWER_VDDMEMCTRL = 0x230

HW_POWER_DCDC4P2 = 0x80C20018

HW_POWER_MISC = 0x0

HW_POWER_DCLIMITS = 0x305F

HW_POWER_LOOPCTRL = 0x167021

HW_POWER_STS = 0x21178A2E

HW_POWER_SPEED = 0x800

HW_POWER_BATTMONITOR = 0x1D60E00

HW_POWER_RESET = 0x0

HW_POWER_SPECIAL_RD = 0x0

 

I somebody is so kind to take a look at my register settings and pointing me to the error, i would be very glad.

 

Regards

 

Martin

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