Evaluates: MAX1270/MAX1271/MAX127/MAX128 19-4782 Rev 2 8/00 MAX1270 EV Kit/EV System General Description Features The MAX1270 evaluation system (EV system) is a com- Proven PC Board Layout plete, 8-channel data-acquisition system, consisting of a Complete Evaluation System Samples to 12ksps MAX1270 evaluation kit (EV kit) and a Maxim 68HC16MODULE-DIP microcontroller (C) module. It is Convenient Test Points Provided On-Board designed to evaluate the MAX1270/MAX1271, a multi- Data-Logging Software with FFT Capability range, 8-channel, 12-bit data-acquisition system. Windows 3.1/Windows 95 software provides a handy Fully Assembled and Tested user-interface to exercise the MAX1270s features. Order the complete EV system (MAX1270EVC16) for Ordering Information comprehensive evaluation of the MAX1270 or MAX1271, using a personal computer. Order the EV kit PART TEMP. RANGE INTERFACE TYPE (MAX1270EVKIT) if you have already purchased the C MAX1270EVKIT 0C to +70C User-Supplied module (68HC16MODULE-DIP) with another Maxim EV system or for custom use in other C-based systems. MAX1270EVC16 0C to +70C Windows Software The MAX1270 EV kit can also be used to evaluate the Note: The MAX1270 software can be used only with the com- MAX127 and MAX128. plete evaluation system (MAX1270ECV16), which includes the 68HC16MODULE-DIP module with the MAX1270EVKIT. Component Lists MAX1270EVKIT Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION U2, U3 2 14-pin sockets C1, C12, C13, C14 4 0.1F ceramic capacitors C2C9 8 0.01F ceramic capacitors 14-pin headers with four U2, U3 2 jumper wires C10 1 0.01F ceramic capacitor (23, 56, 910, 1213) C11, C15 2 4.7F, 10V tantalum capacitors 4.096V voltage reference 22F, 50V aluminum U4 1 C16 1 electrolytic capacitor MAX6141BCSA 5V at 30mA linear regulator Dual common-cathode D1 1 U5 1 MAX1615EUK Schottky diode JU1 1 3-pin header None 1 PC board JU2, JU3 2 2-pin headers Software disk, None 1 MAX1270 Evaluation Kit R1 1 10 5% resistor R2R5 0 Open MAX1270EVC16 Component List R6R13 8 300 5% resistors R14 1 1M 5% resistor PART QTY DESCRIPTION MAX1270EVKIT 1 MAX1270 evaluation kit TP1 1 8-pin header U1 1 28-pin socket, 0.300in. width 68HC16 C module with 68HC16MODULE-DIP 1 16-bit parallel interface U1 1 MAX1270ACNG Windows 3.1 and Windows 95 are trademarks of Microsoft Corp. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.MAX1270 EV Kit/EV System MAX1270 EV KIT Software Windows Application Program Files 68HC16 Source Code Files Main source code for the KIT1270.C16 Application program that runs under MAXADC.EXE program, provided for reference. Window 3.1 or Windows 95 Compiled with Motorola 68HC Macro MAX1270.HLP Help file KIT1270.ASM Assembler, version 4.1. Maxim holds MAXADC personality module for the copyright but allows customers to MAX1270.DLL MAX1270 adapt the program for their own use without charge. MAXADC.INI Program settings file Source code defining the program Software loaded into 68HC16 MAX1270.C16 microcontroller EVKIT.ASM interface with the Maxim 68HC16 module ROM (rev. 1) Install/Uninstall Program Files Source code adding enhanced services INSTALL.EXE Installs the EV kit files on your computer UPGRADE1.INC (rev. 2) for the older Maxim 68HC16 module ROM (rev. 1) INSTALL16.EXE Installs the EV kit files on your computer Removes the EV kit files from your Source code defining the program UNINST.EXE computer QSPI.ASM interface with the Motorola QSPI (Queued Serial Peripheral Interface) Removes the EV kit files from your UNINST32.EXE computer Source code defining the program UNINST.INI Database for uninstall program interface with the Motorola GPT GPT.ASM peripheral. Provides general-purpose Windows program information file for UN-MAXIM.PIF I/O pins. uninstall Evaluating the MAX127/MAX128 MAX1270 Evaluation System The MAX1270 EV board may be used to evaluate the The MAX1270 EV system operates from a user-sup- MAX127 or MAX128 with a user-supplied, 2-wire con- plied +8V to +12V DC power supply. Windows 3.1/95 troller and software. Replace U1 with the MAX127ACNG software running on an IBM PC interfaces to the EV sys- or MAX128ACNG. Cut the default trace on the back of tem board through the computers serial-communica- the board under JU1 (marked with an arrow). Short pins 1 tions port. The software can be operated with or without and 2 of jumper JU1. Connect your two-wire interface to a mouse. Refer to the Quick Start section for setup and SCL, SDA, and GND. Install 100 resistors at R2, R3, R4, operating instructions. and R5. With the address select pins pulled down by R3, R4, and R5, the two-wire device address is 01010000 for MAX1270/MAX1271 writing commands to the part and 01010001 for reading Stand-Alone EV Kit data from the part. Refer to the MAX127 data sheet for The MAX1270 EV kit provides a proven PC board layout waveforms and timing requirements. to facilitate evaluation of the MAX1270. Apply your sys- Note: The MAX1270 EV system software does not tems 12V power-supply rails to the OPAMP+ and support the MAX127 or MAX128. OPAMP- terminals. Connect GND to your system ground return. The OPAMP+ input powers a MAX1615 linear regulator and a MAX6141 voltage reference. It Quick Start must be interfaced to appropriate timing signals for proper operation. Recommended Equipment Connect your three-wire interface to SCLK, DIN, DOUT, You will need the following equipment before you and GND. Leave R3 and R4 open. If you do not drive begin: CS, install a 100 resistor at R5. If you do not drive A small DC power supply, +8V to +12V at 200mA SHDN, install a 100 resistor at R2. Make sure JU1 is in position 2-3 (factory setting). Refer to the MAX1270 QSPI is a trademark of Motorola Corp. data sheet for waveforms and timing requirements. 2 Evaluates: MAX1270/MAX1271/MAX127/MAX128