This version (03 Dec 2020 14:23) was approved by Robin Getz.The Previously approved version (25 Jan 2018 14:09) is available.
Table of Contents
EVAL-ADM2587EARDZ Arduino Shield & EVAL-ADM2587ERPIZ Raspberry Pi Shield
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.
Connectors and Jumper Configurations
| Port | Function |
|---|---|
| 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. |
EVAL-ADM2587EARDZ Arduino Shield & EVAL-ADM2587ERPIZ Raspberry Pi Shield Example Code
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.
Schematic, Bill of Materials, Gerber Files and Layout Files
Change Log
- Initial Revision
Resources
Software
resources/eval/user-guides/adm2587e.txt · Last modified: 03 Dec 2020 14:23 by Robin Getz