Evaluates: MAX187 19-0313 Rev. 0 9/94 MAX187 Evaluation System/Evaluation Kit General Description Features The MAX187 evaluation system (EV system) consists of a Evaluates MAX187 and MAX189 MAX187 evaluation kit (EV kit) board plus a Maxim Complete Evaluation System Includes EV Kit and 68HC16 microcontroller (C) module. Both boards come 68HC16 C Module fully assembled and tested, and software is provided. The 12-Bit Resolution ADC unit connects to an IBM-compatible personal computer. QSPI Serial Interface The EV system can function as a data acquisition system, collecting samples from the MAX187, storing them in mem- 0V to 4.096V Input Range ory, and displaying the conversion results on the host com- Internal Reference Voltage (MAX187) puter. Conversions may be self-timed or synchronized to Low-Supply-Current Shutdown Mode an external timebase. Waveforms can be digitized and dis- played graphically versus time. Complete Source Code Provided The EV system can also evaluate the MAX187s shutdown Proven PC Board Layout feature, and has provisions for monitoring the supply cur- Convenient Test Points Provided on Board rent in the various modes of operation (internal reference, User Prototype Area external reference, or power-down). Order the EV system (MAX187EVC16-DIP) for comprehen- Fully Assembled and Tested sive evaluation of the MAX187 or MAX189. Order the stand- alone EV kit (MAX187EV KIT-DIP) for custom use or if the Ordering Information 68HC16 module (68HC16MODULE-DIP) has already been purchased with another Maxim EV system. The MAX187 PART TEMP. RANGE BOARD TYPE EV kit can also be used to perform limited evaluation on a MAX187EVC16-DIP 0C to +70C Through-Hole stand-alone basis (see the MAX187 EV Kit Quick Start sec- MAX187EVKIT-DIP 0C to +70C Through-Hole tion). The EV system requires an external DC power source 68HC16MODULE-DIP 0C to +70C Through-Hole (such as a 12V DC wall transformer) and an IBM-compati- ble computer with a serial port and a 5 1/4 disk drive. To evaluate the MAX189, order the MAX187EVC16-DIP plus a free sample of the MAX189BCPA. EV System QSPI is a trademark of Motorola Corp. Maxim Integrated Products 1 Call toll free 1-800-998-8800 for free samples or literature.MAX187 Evaluation System/Evaluation Kit EV System Component List EV Kit Component List DESIGNATION QTY DESCRIPTION QTY DESCRIPTION C1 1 0.1F ceramic capacitor 1 MAX187 evaluation kit (MAX187EVKIT-DIP) C2, C3 2 4.7F electrolytic capacitors 1 68HC16 C module (68HC16MODULE-DIP) J1 1 Female 40-pin data connector J4 1 6-pin header MAX187 EV System Quick Start JU1 1 3-pin header R1 1 10k resistor This section applies only to the use of the MAX187 EV U1 1 Maxim MAX187ACPA kit operating with Maxims 68HC16 module. None 4 Rubber feet 1) Copy the files from the distribution disk to your hard None 1 8-pin socket for U1 drive or to blank floppy disks. Store the MAX187 EV None 1 MAX187 printed circuit board kit software in its own directory to prevent conflicts with other Maxim EV kit files. The necessary files are in the root directory of the distribution disk, and the program will display a logon banner. The LED is ancillary files are located in the SOURCE and a status indicator, not a power indicator it will flash TMS320 subdirectories. These subdirectories are to indicate module readiness. Refer to the 68HC16 not required for EV kit operation, and are described module self-check system. in other sections of this manual. 8) To download and run the RAM resident code on the 2) Carefully connect the boards by aligning the 40-pin C module, press ALT+L (i.e. hold down the ALT header of the MAX187 EV kit with the 40-pin con- key and strike the L key). The program prompts for nector of the 68HC16 C module and gently press the file name. Press the ENTER key to download them together. The two boards should be flush and run the file KIT187.S19 on the 68HC16 module. against one another. 9) The KIT187.S19 RAM resident program offers a 3) Use a small flat-blade screwdriver to connect a 9V menu of commands, listed in Table 1. to 15V DC power source to the C module. The ter- Stand-Alone MAX187 EV Kit minal block is located next to the on/off switch, in Quick Start the upper right corner of the module. Observe the polarity marked on the board. This section applies only to the use of the MAX187 EV kit without the C module. 4) Connect a cable from the computers serial port to the C module. If using a 9-pin serial port, use a 1) Connect a regulated 5V DC power supply to the ter- straight-through 9-pin female-to-male cable. If the minals labeled POS5 and GND. The GND pad is serial port uses a 25-pin connector, a standard 25- ground, and the POS5 pad is the 5V input. The pin to 9-pin adapter will be required. board draws less than 5mA of supply current. 5) Start up the MAX187 software on the IBM PC by set- 2) To enable the MAX187s internal reference, connect ting the current directory to match the directory con- the SHDN pin to 5V. To use an external reference, taining the Maxim programs, and then type the pro- leave the SHDN pin open and provide a reference gram name MAX187. voltage at the VREF pad. To put the MAX187 in shutdown mode, connect the SHDN pin to ground. 6) The program allows the user to select which serial port is connected to the C module. Press the 3) Connect the interface signals to the CS, SCK, and space bar until the correct port is highlighted, then DOUT test points. Use the AGND test point as sig- press ENTER. nal ground. See the MAX187 data sheet for timing information. 7) The MAX187 program will switch to terminal-emula- tion mode. At this point, apply power to the 68HC16 4) Apply the input voltage to the terminals labeled module. The LED should light, and within 5 seconds INPUT and GND. 2 Evaluates: MAX187