Use the EVAL-ADM2587EARDZ Arduino Shield with the widely available Arduino UNO to easily evaluate the ADM2587E RS-485 transceiver, the ADM3260 I2C isolator, and the ADuM3151 SPI isolator. The ADM2587E, ADM3260, and ADuM3151 integrate Analog Devices, Inc., iCoupler® technology. The ADM2587E and ADM3260 also integrate Analog Devices isoPower dc-to-dc converter into a single package.
The EVAL-ADM2587EARDZ Arduino Shield & EVAL-ADM2587ERPIZ Raspberry Pi Shield use an identical basic design, J1 Raspberry Pi connector populated for EVAL-ADM2587ERPIZ, and the J5 Arduino connector block is populated for the EVAL-ADM2587EARDZ.
This Wiki guide provides hardware references and Arduino software for full integration of the EVAL-ADM2587EARDZ in a demonstration platform. This wiki guide also provides hardware references and Raspberry pi sample code for the EVAL-ADM2587ERPIZ.
|J1||This is a GPIO female connection to be used with the raspberry pi version of the board EVAL ADM2587ERPIZ.|
|J2||This is used to connect the ADM3260 isolated I2C or ADuM3151 isolted SPI to external devices.|
|J3||This is used to supply power to the logic side of the board.|
|J4||This 6-way connector is used for an RS-485 bus cable. A and B are the ADM2587E receiver inputs while Y and Z are are the driver outputs. Ground terminals are provided for cables with ground wires.|
|J5||This is a GPIO male connection to be used with the Arduino version of the board EVAL ADM2587EARDZ|
|LK5||When LK5 is closed the receiver input B pin is connected to the driver output Z pin. When both LK5 and LK7 are closed the board is configured for half duplex operation. When both LK5 and LK7 are open the board is configured for full duplex operation.|
|LK7||When LK7 is closed the receiver input A pin is connected to the driver output Y pin. When both LK5 and LK7 are closed the board is configured for half duplex operation. When both LK5 and LK7 are open the board is configured for full duplex operation.|
Arduino UNO code is provided so that that user can perform a loopback test mode for the ADM2587E RS-485 transceiver. Load the 'eval_adm2587eardz_arduino_shield_example_code.zip' sketch to an Arduino UNO. Connect jumpers LK5 and LK7. Use an oscilloscope to measure the waveforms on the DI, /RE, A, B, Y, Z, and RxD test points. The Arduino sketch outputs a constant bit stream on the ADM2587E DI pin. The loopback test echos the DI voltage waveform to the RxD pin. The bus voltages on the A, B, Y, and Z pins can also be measured.
Raspberry pi code is also provided so that the user can perform a loopback test mode for the ADM2587E RS-485 transceiver. Load the 'eval_adm2587erpiz_raspberry_pi_shield_example_code.zip' sketch to the Raspberry pi. Voltage waveforms can be measured on the RS-485 logic and bus interface pins, similar to the Arduino example given above.