RuneAudio 0.5-beta - POWER LED problem

KrzyszB

Hello,

I have a problem with the new version of RuneAudio (0.5 beta).
I have connected the LED on pin 8 (GPIO14) which signals the Rasberry power on.
In the 0.4 beta version I had to set in /boot/config.txt:
enable_uart = 1
As I set this in 0.5 beta, Rasberry does not start.
What is the cause?
How can I do it?
KrzyszB

janui

Hi KrzyszB,

KrzyszB wroteenable_uart = 1

There should be no spaces in this line.
janui

KrzyszB

Hi,
I do not have spaces there, of course.
Temporarily, I activate POWRLED in the script at the system startup, but it works after a dozen or so seconds.
And it isn't a professional way

KrzyszB

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hondagx35

Hi,

on a Pi3 i wouldn't use the UART as power indicator.
Because with enable_uart=1 will cap the CPU speed of your CPU to a constant 600Mhz instead of fluctuating speed up to 1.2Ghz.

Try this:

Name:   pi3-act-led
Info:   Pi3 uses a GPIO expander to drive the LEDs which can only be accessed
        from the VPU. There is a special driver for this with a separate DT
        node, which has the unfortunate consequence of breaking the
        act_led_gpio and act_led_activelow dtparams.
        This overlay changes the GPIO controller back to the standard one and
        restores the dtparams.
Load:   dtoverlay=pi3-act-led,<param>=<val>
Params: activelow               Set to "on" to invert the sense of the LED
                                (default "off")

        gpio                    Set which GPIO to use for the activity LED
                                (in case you want to connect it to an external
                                device)
REQUIRED

Frank