![]() Our UART connection is set up and now what we need to do is read the values from our GPS. Thus for the PmodGPS we need to connect 3DF and 1PPS to GPIO channels (if you want to read those pins) and we need to connect the RX channel on the PmodGPS to pin 40 on the WF32 and connect TX on the PmodGPS to pin 39 on the WF32. Pin 39 is is the RX channel and pin 40 is the TX channel. The chipKIT WF32 uses UART0 to communicate with LabVIEW so we need to use UART1 (technically the data sheet calls this UART4 but there is a note about how UART4 is accessed using the runtime object Serial1). Now that we know the connections, let's hook up the PmodGPS to the chipKIT WF32. Then of course we have the ground and 3.3V lines to power the module. Pin 4 is called 1PPS which drives the line high for 100ms then low for 900ms and repeats this process (honestly not sure what the point of it is). The second and third pins are the RX and TX lines that actually transmit the information to our board. When the module has a constant fix, the pin stays low and if the module is unable to get a fix then the pin will toggle every second. The first is labeled 3DF which indicates the status of the user's positional fix. Now let's take a look at the PmodGPS data sheet here. ![]() There are also many UART connections that only have RX and TX connections.Īn important thing to note about UART connections is that the RX from one board connects to the TX of the other and vice-versa. The RX and TX lines are the ones that actually transmit and receive data so in most cases you can tie RTS and CTS to ground (or sometimes you can even leave them floating). To give your LabVIEW code a GUI you could have it include a web service which you access through any web browser - this is pretty easy - or write your GUI in another language and have it communicate with the LabVIEW code using TCP/IP for example.Īlternatively there is the TSXperts product (also linked from my previous post) which does do GUIs, although I think it's less powerful in other aspects, and it costs extra money.įor any further questions on LabVIEW I would go to the NI forums and/or LabVIEW Maker Hub site.UART connections have 4 data channels: RTS "Ready to Send", RX "Receive", TX "Transmit", and CTS "Clear to Send". You can't directly display LabVIEW front panels (GUIs) on the Pi's display. ![]() I'm pretty sure it will only work under standard Raspbian.This capability is only licenced for personal, non-commercial use.You need LabVIEW 2014 running on a Windows PC, either a commercial version or the Home and Student version.You CAN deploy and run LabVIEW Real-Time code to the Raspberry Pi 2 or 3. ![]() Bit late here but the post of mine you linked above (thanks!) still applies - no need to look into alternative boards that cost five times as much as the Pi. ![]()
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