STM CircleOS forum / LCD backlight forced on. Will it break?

Limba · 2010-10-06 20:57:29

Hi,

How much more LCD backlight take current or will it break if I force backlight on (pin 95 PB5).
I need TIM4 for Phase measurement (TIM4 CH0 and CH1).

- Juha

yrt · 2010-10-07 06:40:49

Hi Juha,

The backlight is made with 2 LEDs, and their consumption is about 30 mA (Primer2), and there is no danger to break it, if you force it. The only issue is the battery autonomy.

Yves

Limba · 2010-10-07 15:10:47

OK

I will keep that in my mind when I write PWM measurement driver.
When measurement is over then return orginal TIM4 settings.

- Juha

# 1 2010-10-06 20:57:29 LCD backlight forced on. Will it break?

LCD backlight forced on. Will it break?

# 2 2010-10-07 06:40:49 LCD backlight forced on. Will it break?

Re: LCD backlight forced on. Will it break?

# 3 2010-10-07 15:10:47 LCD backlight forced on. Will it break?

Re: LCD backlight forced on. Will it break?

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