DS8500-KIT# Analog Devices

Evaluates: DS8500 DS8500 Evaluation Kit General Description Benefits and Features The DS8500 evaluation kit (EV kit) provides a conve- The EV Kit Provides Fast and Simple Evaluation by nient platform to evaluate the DS8500 HART modem. Providing a Total HART Communications Chain on It allows quick evaluation through a demonstration mode Board and in-depth evaluation using HART Communication Example HART Master and Field Device Circuits Foundation (a part of FieldComm Group) tools. Demonstrate Usage in the Two Most Common HART Connection Configurations EV Kit Contents HART Registered Modem IC DS8500 EV Kit Board On-Board Isolated 4mA20mA Communications Loop Micro-USB Cable MAXQ622 USB Microcontroller with Demo Firmware External Connections Allow for Advanced Evaluation Ordering Information appears at end of data sheet. of the DS8500 in Other Configurations Figure 1. USB Connection and READY LEDs HART and HART Registered are registered trademarks of the HART Communication Foundation Corp. 19-5641 Rev 1 9/15Evaluates: DS8500 DS8500 Evaluation Kit Quick Start Detailed Description of Hardware The DS8500 EV kit comes with demonstration firmware Users must also use the DS8500 IC data sheet in con- already loaded. junction with this EV kit data sheet. 1) Download and install the DS8500 EVKIT Software Power Supply GUI at www.maximintegrated.com/evkitsoftware. The EV kit uses USB power for all on-board devices. 2) Use the included Micro-USB cable to connect and On-Board 420mA Current Loop power the EV kit as shown in Figure 1. The current loop is isolated from board ground and 3) Wait until the READY LEDs (circled in Figure 1) light power allowing communications between Master and after the board has finished USB enumeration. This Field Device, both implemented by serial ports on the can take several seconds. MAXQ622. This common connection necessitates use 4) Start the DS8500 EVKIT GUI from the Start menu of a fully isolated 420mA loop, which is very sensitive by selecting Maxim Integrated DS8500 DS8500 to ground loops, thus direct probing of the on-board loop Evaluation Kit. Figure 2 shows the demo GUI. is strongly discouraged and could damage the EV kit. It automatically finds the USB-connected EV kit. Note that this is a nontypical configuration specifically 5) Simply type messages from the Master or Field designed for demonstration purposes. In typical installa- Device window and press the Send button to tions, Master and Field Device are separately located, transmit and receive modulated data over the with the Field Device floating, often powered by loop on-board 420mA current loop. current. 6) Observe the ACTIVE LEDs lighting while transmitting and receiving. Figure 2. DS8500 EV Kit Demo GUI Maxim Integrated 2 www.maximintegrated.com