i2c-tools & serial port

Dear All,

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?

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®!!

[Peter Robinson]

>  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?

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 <pbrobinson(a)gmail.com&gt;
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?
>

[Steven A. Falco]

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, ng0177(a)gmail.com 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 <pbrobinson(a)gmail.com
> <mailto:[e-mail]>> 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?
>  
>  
>  _______________________________________________
>  arm mailing list -- arm(a)lists.fedoraproject.org
>  To unsubscribe send an email to arm-leave(a)lists.fedoraproject.org
>  Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
>  List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
>  List Archives: https://lists.fedoraproject.org/archives/list/[e-mail]
>

Good advice. I tried but adding the uart option didn't work. I suspect we
have two problems overlaid. It coudl be a problem with the python version
in addition?

$ sudo i2cset -y 1 0x60 0x08 0xbb && sleep 1 && sudo python
PCF4_serial0_9600_FU1.0.py -v -f PiCoolFAN_V1_4.hex
  File "PCF4_serial0_9600_FU1.0.py", line 120
    print 'WARNING: I2C support is missing. Please install smbus support
for python to enable additional functionality! (sudo apt-get install
python-smbus)'
          ^
SyntaxError: invalid syntax

On Sun, Jul 26, 2020 at 5:29 PM Steven A. Falco <stevenfalco(a)gmail.com&gt;
wrote:

>  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, ng0177(a)gmail.com 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 <pbrobinson(a)gmail.com
>  <mailto:[e-mail]>> 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?
>  >
>  >
>  > _______________________________________________
>  > arm mailing list -- arm(a)lists.fedoraproject.org
>  > To unsubscribe send an email to arm-leave(a)lists.fedoraproject.org
>  > Fedora Code of Conduct:
>  https://docs.fedoraproject.org/en-US/project/code-of-conduct/
>  > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
>  > List Archives:
>  https://lists.fedoraproject.org/archives/list/[e-mail]
>  >
>  _______________________________________________
>  arm mailing list -- arm(a)lists.fedoraproject.org
>  To unsubscribe send an email to arm-leave(a)lists.fedoraproject.org
>  Fedora Code of Conduct:
>  https://docs.fedoraproject.org/en-US/project/code-of-conduct/
>  List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
>  List Archives:
>  https://lists.fedoraproject.org/archives/list/[e-mail]
>

[Steven A. Falco]

The script is asking you to use apt-get, which is not a Fedora tool - Fedora uses dnf. 
You might try "dnf install python3-i2c-tools", to see if it helps with the I2C
communications.

But really, the path of least resistance is to use the OS they wrote their tools for.

	Steve

On 7/26/20 12:31 PM, ng0177(a)gmail.com wrote:
>  Good advice. I tried but adding the uart option didn't work. I
> suspect we have two problems overlaid. It coudl be a problem with the python version in
> addition?
>  
>  $ sudo i2cset -y 1 0x60 0x08 0xbb && sleep 1 && sudo python
> PCF4_serial0_9600_FU1.0.py <http://PCF4_serial0_9600_FU1.0.py> -v -f
> PiCoolFAN_V1_4.hex
>     File "PCF4_serial0_9600_FU1.0.py <http://PCF4_serial0_9600_FU1.0.py>";,
> line 120
>       print 'WARNING: I2C support is missing. Please install smbus support for python
> to enable additional functionality! (sudo apt-get install python-smbus)'
>             ^
>  SyntaxError: invalid syntax
>  
>  On Sun, Jul 26, 2020 at 5:29 PM Steven A. Falco <stevenfalco(a)gmail.com
> <mailto:[e-mail]>> wrote:
>  
>      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, ng0177(a)gmail.com <mailto:[e-mail]> 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 <pbrobinson(a)gmail.com
> <mailto:[e-mail]> <mailto:[e-mail]
> <mailto:[e-mail]>>> 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?
>       >
>       >
>       > _______________________________________________
>       > arm mailing list -- arm(a)lists.fedoraproject.org
> <mailto:[e-mail]>
>       > To unsubscribe send an email to arm-leave(a)lists.fedoraproject.org
> <mailto:[e-mail]>
>       > Fedora Code of Conduct:
> https://docs.fedoraproject.org/en-US/project/code-of-conduct/
>       > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
>       > List Archives:
> https://lists.fedoraproject.org/archives/list/[e-mail]
>       >
>      _______________________________________________
>      arm mailing list -- arm(a)lists.fedoraproject.org
> <mailto:[e-mail]>
>      To unsubscribe send an email to arm-leave(a)lists.fedoraproject.org
> <mailto:[e-mail]>
>      Fedora Code of Conduct:
> https://docs.fedoraproject.org/en-US/project/code-of-conduct/
>      List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
>      List Archives:
> https://lists.fedoraproject.org/archives/list/[e-mail]
>  
>  
>  _______________________________________________
>  arm mailing list -- arm(a)lists.fedoraproject.org
>  To unsubscribe send an email to arm-leave(a)lists.fedoraproject.org
>  Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
>  List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
>  List Archives: https://lists.fedoraproject.org/archives/list/[e-mail]
>