You can enable the serial port by adding this line:
enable_uart=1
in the file /boot/efi/config.txt and rebooting the Pi. If that doesn't work
for you, you might consider temporarily loading a copy of Raspbian on an SD
card just to do the fan setup, since that is what the hardware manufacturer
expects you to be using.
After configuring the fan, then put your Fedora SD card back in. The manual
you linked to says that the settings are stored in EEPROM, so they should be
remembered when you switch back to Fedora.
Steve
On 7/26/20 7:40 AM, [email protected] wrote:
Sorry, I forgot - here is what we are talking about:
https://pimodules.com/picoolfan4
https://pimodules.com/download/picoolfan4-user-manual
see also attached.
Yes, Raspian, although not mentioned explicitly in the manual.
On Sun, Jul 26, 2020 at 12:12 PM Peter Robinson <[email protected]
<mailto:[email protected]>> wrote:
> I need to update the firmware of a fan for the RPi4 and given the below
instructions in Raspbian. I also installed
>
> sudo dnf -y install i2c-tools
> sudo dnf -y install python3-i2c-tools
>
> but the firmware update fails. I guess, it is because of the serial port
not being enabled. Any advice?
Can you actually link to the hardware and the instructions you're
attempting to follow/convert, it saves people actually trying to
guess/interpret what that may be.
> Thanks, Thomas
>
> In order to use bootloader, user need to have activated and free Serial
Port on Raspberry Pi®. The below
> procedure is showing how to make sure that Serial Port is free and
available for Bootloader process.
> sudo raspi-config
> Select -> Interfacing Options
> 1. IC Kernel ON
> 2. Serial option to enable UART
> Then it will ask for login shell to be accessible over Serial, select No
shown as follows.
> At the end, it will ask for enabling Hardware Serial port, select Yes,
> Then, reboot the Raspberry Pi®!!
I take it they're the details for Raspbian?
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