Mapping GPIO and adding GPIO configurations

2023-11-16T18:56:27.162000Z

Hi
I am about to configure ALL GPIOs on a Raspberry Pi 3 model B V1.2.
It seems that I have limited understanding of why not all the IO’s become available with the corresponding mapped IO’s – the 'dwInUse' contains mapping of the inputs from GPIO0 to GPIO27. But 'dwInputs' are only showing GPIO0 to GPIO8 and GPIO15 as available inputs. These mentioned inputs work fine

You will be able to watch the limited mapped IO activity here:
https://drive.google.com/file/d/1zz4PBNBfRZBF2YkiJ2VQxw6L9MBVji7R/view?usp=sharing

Can you please bring your best idea on why GPIO09 to GPIO14 and GPIO16 to GPIO27 state are zero in the dwInputs register?

Thanks in advance.
Best regards
Andreas Bahrt

Mapping GPIO and adding GPIO configurations

2021-10-13T02:11:30.228000Z

I am trying to get a PWM circuit to work, I only need one channel for lase control and Raspberry Pi has it, GPIO 12 or 13, how do I enable and control it? I do see a function GPIO that has PWMFrequency and duty cycle

Mapping GPIO and adding GPIO configurations

2020-02-27T17:06:21.476000Z

Hi, further to this I see the pattern for I/O Mapping 8 bits per bank. To edit this and add the additional channels, should I download the CSV file edit it and reload?
Then for example, if I create channel Bit2 , %IXO.2, it will be GPIO2 ?

Mapping GPIO and adding GPIO configurations

2020-02-27T17:06:18.523000Z

Model: Rpi 3B+
Hi,
I would like to use all GPIO pins, 2 to 27 for digital I/O.
I edited the device description file (devdesc.xml), added in the missing GPIO pins and gave it a new name and loaded it, but it's not enough, it seems apparent you need to update the IoDrvGPIO.library to reference the GPIO numbers to the internal Pi memory address. The GPIOs I/O Mapping table needs to be populated so you can assign variables to the GPIO.

Edwin, would it be possible to provide a library file with mapping for GPIO 2 to 27?

Mapping GPIO and adding GPIO configurations

2020-02-27T17:06:17.498000Z

Edwin Schwellinger hat geschrieben:
Hi,
yes, this is possible.
We only provide the free GPIOs because we assume that in many cases I²c, SPI and the other options are used, so we reduced the standard IOs.
Please see attached the device description file (devdesc.xml) that contains the description and the parameters of the “GPIO” device in the device tree. Feel free to modify/customize it, but consider to give it a new ID (DeviceIdentification section) and a new name (DeviceInfo section)

<Device hideInCatalogue="false">
    <DeviceIdentification>
      <Type>504</Type>
      <Id>0000 0000</Id>
      <Version>1.0.0.0</Version>
    </DeviceIdentification>
    <DeviceInfo>
      <Name name="local:ModelName">GPIOs</Name>

to distinguish it from the standard one. You need to install it in the device repository and update your device.
Please see also the attached library that interprets the configuration and executes it.
BR
Edwin

Mapping GPIO and adding GPIO configurations

2020-02-27T17:06:14.808000Z

artemka hat geschrieben:
Hello! I need to set GPIO11 as input. I edit the file GPIOsBplus.devdesc.xml, in the settings this output appeared, but it's not working, can you fix it?

Is it possible to implement it?

Mapping GPIO and adding GPIO configurations

2020-02-27T17:06:13.858000Z

Hello! I need to set GPIO11 as input. I edit the file GPIOsBplus.devdesc.xml, in the settings this output appeared, but it's not working, can you fix it?

Mapping GPIO and adding GPIO configurations

2020-02-27T17:06:12.894000Z

Originally created by: M.Schaber

Hi,

in recent CODESYS versions, the "Featureset" functionality was removed, CODESYS now always behaves as "Professional".

HTH,
Markus

Mapping GPIO and adding GPIO configurations

2020-02-27T17:06:10.238000Z

alexdrik hat geschrieben:
First of all, you have to install the DevDesc.xml under "Tools" -> "Install Device..." and select the file.
Then, you have to navigate to "Tools" -> "Options...", select "Features" and click on "Predefined Feature Set" and change it to "Professional".
Now you can right-click on the Raspi in the project manager, select "update device..." and there is a new option "display all versions (for experts only)" and select the modified device description file.
Remember to map the Inputs and Outputs to plc-variables and to configure the used pins as input or as output.

Hi, I don't have the "Features" option under the Tools - Options tabs! Am I missing something please?

Mapping GPIO and adding GPIO configurations

2020-02-27T17:06:09.290000Z

Hi everyone! Anyone help me to understand GPIO structure. I talk about pull-up resistors, how configured I/O in Codesys driver, when I select port is input? For example I need use button working on ground.

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