Pi-Plate Python Code To SPI (version 1) discussion
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Last updated: 2019-12-28
Post by briangehrke on #2 Create Sudo Code Convert Python to SPI
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status: open --> closed
Last updated: 2019-12-07
Post by briangehrke on #3 piplate.xml
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labels: rename, device description file, .devdesc.xml --> status: open --> closed
Last updated: 2019-12-08
Post by briangehrke on #3 piplate.xml
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Ok, can do, thanks for the advise!
Last updated: 2019-12-08
Post by aliazzz on Discussion for Relay Plate Python Code page
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Nice posting Seems to me not too difficult to rewrite it into Structured Text. Little advice; 1) Just write an FB (class!) which extends the SPI baseclass and try to translate this python source into it. This will be your CODESYS basic Function Block driver. 2) Study other SPI drivers for extra help. Lots of resources on it here. 3) Use CfUnit for debugging and write unit tests for your FB driver in your library ;-) It will help you develop the driver quicker and more painless and it will also serve as useful information for other developers. If you first write some tests and then develop your code you will reap the benefits from it! *) Bonus stage: You can always embed your FB into a SPI based IoDrv. There is loads of info on this topic available here, but it will take you extra work and effort depending on your skill level.
Last updated: 2019-12-06
Ticket #2: Create Sudo Code Convert Python to SPI
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Completed Sudo code on the Wiki Pages. Next Step will be to write the actual driver.Create Sudo Code Convert Python to SPI Relay Pi-Plate 0 tickets Ticket tickets Create Sudo Code Convert Python to SPI 2019-12-07 16:26:06.401000 closed False 0 briangehrke Ticket #2: Create Sudo Code Convert Python to SPI 0 Create Sudo Code on Converting the Pyton To SPI False /drv/relay-pi-plate/tickets/2/ briangehrke 2019-12-07 16:26:00.690000 None 2 relay-pi-plate Completed Sudo code on the Wiki Pages. Next Step will be to write the actual driver. False False 2
Last updated: 2019-12-07
Ticket #3: piplate.xml
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Some small advice, it is better to stick to the default naming scheme for device descriptions; so rename, pi-plate.xml to pi-plate.devdesc.xml piplate.xml Relay Pi-Plate 0 tickets Ticket tickets piplate.xml 2019-12-08 22:01:05.758000 closed False 0 aliazzz Ticket #3: piplate.xml 0 Write Codesys Code False /drv/relay-pi-plate/tickets/3/ briangehrke 2019-12-07 20:03:56.169000 None 3 relay-pi-plate Some small advice, it is better to stick to the default naming scheme for device descriptions; so rename, pi-plate.xml to pi-plate.devdesc.xml False False 2
Last updated: 2019-12-08
Post by briangehrke on How to turn on a GPIO from a device function block
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I need to link a GPIO to a function block. I think I just need to point the address to the GPIO when the function block is initialized. Then control the output when needed. Output 25 turns on just before the SPI transmits to the relay board then turns off afterward. I don't know what is used for, but I am going to follow what the creator of the relay board did. Any suggestions?
Last updated: 2019-12-07
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