SPI Device Beaglebone Black

2022-08-24T13:31:53.516000Z

hi, I have a similar issue. My code reads value on logins but when i create boor application it cant access the file(one-wire file). How can I check if codesys has certain permissions?
Here is a link to the details: https://stackoverflow.com/questions/73442159/unable-to-open-a-file-on-boot-application

SPI Device Beaglebone Black

2021-09-29T06:03:57.912000Z

Your login probably has permissions but not neccessarily codesys itself. You have to check what permissions (group) codesys belongs to and if that group has permission to the SPI device.

SPI Device Beaglebone Black

2021-09-28T23:20:54.476000Z

Yes I am sure I did a spi loop test and the clock works. When testing codesys it doesn't make the cs go low at all which is the problem as it is a low trigger.

SPI Device Beaglebone Black

2021-09-28T08:31:36.649000Z

Are you sure that codesys have (Linux) permissions to access SPI device?

SPI Device Beaglebone Black

2021-09-28T06:43:25.639000Z

Hello

I haven't gotten a response in a while so I wanted to clarify. The project https://forge.codesys.com/drv/spi-temperature/home/Home/ has exactly what I want. However when trying to use it for the Beaglebone Black it doesn't work. What modifications have to be made for it to be compatible any help would be greatly appreciated.

SPI Device Beaglebone Black

2021-09-23T02:03:02.234000Z

When I used the generic SPI master device description I was unable to add the SPI Temperature device to it even though it is in the device repository. I couldn't find a solution on the forge for this.

For the original post in the device tree I get a symbol indicating (The device is not exchanging data; bus error, no configuration, or simulation mod). I am not sure what I've done wrong and included what happens when I run the project and the parameters I've set. I've included the /dev folder of the beaglebone to show its the correct spidev link.

Another issue is how do I link the function blocks for the SPITemperature to the device. I think this is the main problem as its not linked. Any advice would be greatly appreciated, thankyou in advance.

SPI Device Beaglebone Black

2021-09-22T09:02:59.249000Z

in that case yes - if you use: https://forge.codesys.com/forge/talk/Runtime/thread/e0f8552007/#p24118
these generic devicedescriptions for BBB

SPI Device Beaglebone Black

2021-09-22T08:44:27.164000Z

Even if it's for the BBB. Does the BBB use the Raspberry PI package?

SPI Device Beaglebone Black

2021-09-22T06:38:30.336000Z

You just need to install the Raspberry PI Package from store, which brings the needed libraries.

SPI Device Beaglebone Black

2021-09-22T04:11:53.157000Z

I've added the SPIMaster.devdesc.xml file to the device repository however it does not come up when I add device from Device (CODESYS Control for Beaglebone SL). This file references a library called Beaglebone Black Peripherals, and has interfaces called BBB.SPIMaster and BBB.SPI. How do I modify the SPI_Template library to link to the Beaglebone Black Peripherals instead of the Raspberry Pi Peripherals. Any help would be greatly appreciated. And what interface do I need to use for the SPI_Template.devdesc.xml.

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