The PMOD interface can be found on many microprocessor development platforms, FPGA development kits, and are a great way to begin prototyping a design. To make it easy for our customers to test and evaluate ADI PMOD boards, the SDP-I-PMD was developed to enable quick and easy connection to the ADI system demonstration platform (SDP). This allows for testing the functionality as well as the performance of the circuit using a controlled evaluation environment. Demonstration software is available for many PMOD hardware modules but not all, so please check each project carefully for details.
The SDP-I-PMD can be used to connect all ADI PMOD boards directly to the SDP, creating a PC interface via the USB port, and allowing for LabVIEW software development.
Pictured above is the SDP-I-PMD interposer board which was developed to quickly and easily connect ADI PMOD boards to our system demonstration platform (SDP). The connectors on the SDP-PMD-IB1Z board is marked by the green font on the picture.
The SDP-PMD-IB1Z itself won't do anything without the SDP hardware control board and a 6V external power supply through P5 connector.
The SDP doesn't provide voltage rails for their daughter cards, and PMOD hardware expects host controllers to provide the power. So we had to provide the power for the SDP daughter card(SDP-PMD-IB1Z) and provide the power for the attached PMOD boards, which is why the 6V power supply is there, and why you have to connect it up.
When using the PMOD-SDP interposer board to connect PMOD boards to the PC via the SDP platform, you should be connected to the EVAL-SDP-CB1Z via the CONA connector to the P1 connector on the SDP-PMD-IB1Z board.
PMOD is a serial communication protocol and can support the following types of communication.
For a complete understanding of supporting communication protocols and their respective pin outs and form factors please see the official Digilent specification.
The P4 could be working on the both Expanded SPI or Expanded UART mode, the different working mode set by the different jumper position.
The following picture showing the P4 working on the Expanded SPI mode jumper position configuration:
The following picture showing the P4 working on the Expanded UART mode jumper position configuration:
PMOD hardware modules recieve their power from the host controller board. So in this case the SDP-PMD-IB1Z is the host, and we give the option for supplying your PMOD board with either 3.3V or 5V depending on the position of jumper(JP2). The position of the jumper will decide the voltage rail passed, so please be careful to know which voltage rail your PMOD board needs before selecting a setting.
The following jumper position showing the 3.3V power supply PMOD daughter board configuration:
The following jumper position showing the 5V power supply PMOD daughter board configuration:
If you are using the SDP with the PMOD-SDP adaptor board, and any PMOD hardware boards, please use the following setup procedure:
Following is a table of current PMOD boards offered by Analog Devices, and will connect to the PMOD-SDP adaptor board.
|Webpage||Application||SDP Software Available|
|CN0179||4-20 mA Output Drive||Yes|
|CN0216||Weigh Scale Measurement||Yes|
|CN0332||Rotational Speed Measurement||Yes|
|CN0335||0 - 10V Input Range||Yes|
|CN0336||4-20 mA Input Range||Yes|
|CN0337||RTD Temperature Measurement||Yes|
|CN0346||Relative Humidity Measurement||Yes|
|CN0350||Peizo Vibration Measurement||Yes|
|CN0354||Multichannel Thermocouple Measurement||Yes|
|CN0355||Differential Pressure Measurement||Yes|
|CN0357||Toxic Gas Monitoring||Yes|
|CN0365||High Temperature Data Acquisition||Yes|
|CN0370||Low Noise LED Drive||Yes|
|CN0372||Energy Harvesting Data Acquisition||Yes|