Communication (RS232, RS485, I2C, SPI, UDP, TCP, ...)

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  SPI communication in REXLANG
  • contactform  

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  Hi, In this case you just use spi_bufTx[0] = 0; If you wanted e.g. SPI_MODE = 2 and LSBFIRST, you would use spi_bufTx[0] = 2 | 8; In other words, the first 2 bits define mode, the 3rd bit defines CS behavior, the 4th defines LSB etc. CS signal is controlled by operating system. You can only change its behavior by the 3rd bit as mentioned above. As for the delay function, I have turned it into a separate topic. Best regards, Jaroslav
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  Interfacing SX1509 pin expander
  • contactform  

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  Hi Chris, thank you for reaching out. Yes, it is possible to interface with SX1509 via I2C using REXYGEN. However, it will require a bit of hand-coding. Have a look at function block called REXLANG and its function "OpenI2C" - https://www.rexygen.com/doc/PDF/ENGLISH/BRef_ENG.pdf#page=439 There are also some examples on I2C communication available - "0502 Generic I2C Communication" folder in Examples library (which is part of REXYGEN Studio) - these might help you to see how to implement the I2C communication according to your needs. Let us know about your progress. Regards, Tomas
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  Ethercat compatible?
  • Scoobsalamander  

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  No problem, it is only for some hobby-related stuff so no rush. Grtz, Kris
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  Telegraf (influxDB) integration
  • hubert  

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  Hi @Scoobsalamander, thanks for info, I will look into it. Hubert
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  Connecting Racing Wheel to REXYGEN
  • stepan.ozana  

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  Thanks for the explanation, now I understand. Nice solution. Jaroslav
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  Best way to send commands over Ethernet to a 2Dcode (QRcode) reader
  • sadilekivan  

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  Hi Ivan, thank you for your question. Using REXLANG function block you can manage Ethernet communication - see REXLANG documentation - part Communication functions: https://www.rexygen.com/doc/PDF/ENGLISH/BRef_ENG.pdf#page=447 Have a look also at "0504-01 Generic UDP Sender Receiver" example which can help you to start with the implementation. Regards, Tomas
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  SPI Communication / Rexlang / RelayPlate / DAQCPlate
  • Butcher  

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  Hi Paul, thanks for reaching out. You can now integrate Python scripts within REXYGEN 2.50.10 - for upgrade see post https://forum.rexygen.com/topic/120/installation-of-rexygen-2-50-10-testing Python block documentaton: https://www.rexygen.com/doc/ENGLISH/MANUALS/BRef/PYTHON.html#x272-27100016 Let us know if it helped. Regards, Tomas
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  I2C with REXDuino
  • stepan.ozana  

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  Me and my colleague finally implemented some functional solution. We make it public if anyone is interested. Many thanks to Ing. Tomáš Dočekal! MCP4725_REXDuino_2_50_10.zip
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  Can driver
  • Bentoni  

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  Hi Toni, FilterIdMask can be used for filtering messages from more devices. In your case, there is only one device, so you can set FilterIdMask as 0xfff. For message decomposing, use the INTSM blocks (www.rexygen.com/doc/ENGLISH/MANUALS/BRef/INTSM.html). The basic example of using INTSM block can be found in this thread: https://forum.rexygen.com/topic/174/reading-and-writing-4-byte-floating-point-from-modbus?_=1609251284153 For decomposing a byte value into bits can be used block BDOCT(www.rexygen.com/doc/ENGLISH/MANUALS/BRef/BDOCT.html). Cheers, Jan
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  I2C EZO component
  • belgacom  

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  Hi Arnaud, thanks, I hope you are fine too. Can you post here your actual code from Rexlang, please? When an error occurs, code execution stops, so the outputs may not be updated. We will try to find and fix the Numeric range check error. Cheers, Jan