GeorgeMina Posted September 13, 2019 Share Posted September 13, 2019 Hi, I have a Nebula Rev 2.0 board, which has an on board pmod host (2x6 pin). Is it possible to connect 2 pmod modules to it? These are the modules of interest: https://store.digilentinc.com/pmod-amp2-audio-amplifier/ https://store.digilentinc.com/pmod-mic3-mems-microphone-with-adjustable-gain/ Link to comment Share on other sites More sharing options...
JColvin Posted September 18, 2019 Share Posted September 18, 2019 Hi @GeorgeMina, Yes the cable like the one you linked will work correctly. I'm not familiar with the Nebula board you linked, but most microcontrollers programming environments are pretty beginner friendly. Let me know if you have any questions about this. Thanks, JColvin Link to comment Share on other sites More sharing options...
JColvin Posted September 13, 2019 Share Posted September 13, 2019 Hi @GeorgeMina, Yes, you may attach one Pmod to the top row of the 2x6 header and the other Pmod to the bottom row of the 2x6 Pmod host port; you will need to use a cable of some kind though since the Pmods won't both physically fit on top of each other, but there is nothing electrically preventing you from doing this. I am not familiar with the Nebula board you mentioned, but you should be able to program it such that each Pmod is controlled separately. I don't know if there are any nuances with this particular board that you would have to consider (such as the Pmod port is only compatible with SPI Pmods). Thanks, JColvin Link to comment Share on other sites More sharing options...
GeorgeMina Posted September 14, 2019 Author Share Posted September 14, 2019 19 hours ago, JColvin said: Hi @GeorgeMina, Yes, you may attach one Pmod to the top row of the 2x6 header and the other Pmod to the bottom row of the 2x6 Pmod host port; you will need to use a cable of some kind though since the Pmods won't both physically fit on top of each other, but there is nothing electrically preventing you from doing this. I am not familiar with the Nebula board you mentioned, but you should be able to program it such that each Pmod is controlled separately. I don't know if there are any nuances with this particular board that you would have to consider (such as the Pmod port is only compatible with SPI Pmods). Thanks, JColvin Hi J, Thanks for your prompt response. I assume that would be a cable like so: https://store.digilentinc.com/2x6-pin-to-dual-6-pin-pmod-splitter-cable/ I've never programmed a MCU before. I assume it shouldn't be too hard to write code to bind the peripherals to the MCU pins, I hope. Link to comment Share on other sites More sharing options...
Cristian.Fatu Posted September 27, 2019 Share Posted September 27, 2019 Yes, that cable is suitable from connection perspective. Still, there are functionality issues that you must be concerned. Most of the Pmods communicate using protocols like SPI, I2C, etc. This is specified on the Pmod datasheet. This means that the pins corresponding on the maching connector (on the system board) must implement that specific functionality. Normally using a FPGA board will be easier to configure Pmod pins to the needed functionality. Still, as you use a microcontroller board, this might be more difficult or even impossible. Please check if the pins associated to the Pmod rows correspond with the associated function on the Pmod. Another possibility is to re-configure the pins if your microcontroller allows pins reconfiguration. Please check (in the board schematic) which microcontroller pins are connected to the Pmod connector, and then check (in the microcontroller datasheet) the functions for these pins. Good luck. Link to comment Share on other sites More sharing options...
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GeorgeMina
Hi,
I have a Nebula Rev 2.0 board, which has an on board pmod host (2x6 pin). Is it possible to connect 2 pmod modules to it?
These are the modules of interest:
https://store.digilentinc.com/pmod-amp2-audio-amplifier/
https://store.digilentinc.com/pmod-mic3-mems-microphone-with-adjustable-gain/
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