MAX1416 Evaluation Kit Evaluation System

MAX1416 Evaluation Kit/

Evaluation System

			Component Suppliers

SUPPLIER	PHONE	FAX		WEBSITE

Taiyo Yuden	800-348-2496	847-925-0899		www.t-yuden.com

TDK	847-803-6100	847-390-4405		www.component.tdk.com

Note: Please indicate that you are using the MAX1416 when contacting these component suppliers.

Evaluates: MAX1416/MAX1415/MX7705

Quick Start

Required Equipment

Before you begin, you need the following equipment:

•MAX1416EVC16 (contains a MAX1416EVKIT board and a 68HC16MODULE-DIP)

•DC power supply, +7VDC to +12VDC at 0.25A

•DC power supply, +5VDC

•Windows 98/2000/XP computer with an available serial (COM) port

•9-pin I/O extension cable

Procedure

Do not turn on the power until all connections are completed.

1)Ensure that JU1, JU2, and JU4 are closed, and that JU3 is in the 1-2 position (see Table 1 for jumper settings).

2)Carefully connect the boards by aligning the 40-pin header of the MAX1416 EV kit with the 40-pin con- nector of the 68HC16MODULE-DIP module. Gently press them together. The two boards should be flush against one another.

3)Connect the +5VDC power source to the MAX1416 EV kit at terminal block TB1. Observe the polarity marked on the board.

4)Connect the +7VDC to +20VDC power source to the µC module at the terminal block located next to the on/off switch, along the top edge of the µC module. Observe the polarity marked on the board.

5)Connect a cable from the computer’s serial port to the µC module. If using a 9-pin serial port, use a straight-through, 9-pin female-to-male cable. If the only available serial port uses a 25-pin connector, a standard 25-pin to 9-pin adapter is required. The EV kit software checks the modem status lines (CTS, DSR, DCD) to confirm that the correct port has been selected.

6)Install the evaluation software on your computer by running the INSTALL.EXE program on the disk. The program files are copied and icons are created for them in the Windows Start menu.

7)Turn on the power supply.

8)Start the MAX1416 program by clicking on its icon in the Start menu.

9)The program prompts you to connect the µC mod- ule and to turn on its power. Slide SW1 to the ON position. Select the correct serial port, and click OK. The program automatically downloads its soft- ware to the module.

10)When the main window appears (Figure 1), click

Initialize and then Calibrate.

11)Apply input signals between AIN1+ and AIN1-. Tie the unused analog input AIN2+ and AIN2- to GND. Click Read or check Auto Read. Observe the code and voltage readout on the screen.

Detailed Description

of Software

The main window of the evaluation software controls the features of the MAX1416. The Measurement tab sheet is used to initialize, calibrate, and read data. Prior to read- ing the MAX1416, select the appropriate MCLK master- clock input source and click Initialize. The FS1 and FS0 bits in the clock register determine the data rate.

The Initialize button writes the clock register INT, CLKDIS, CLKDIV, CLK, and FS bits, and then writes to the setup register with FSYNC = 1. The exact value written to the clock register depends on the MCLK input setting, and can be viewed by bringing up the Clock tab sheet after initialization.

The Calibrate button first writes the setup register with FSYNC = 1, then writes setup with MD = 01 (self-cali- bration mode) and FSYNC = 0. After DRDY returns low, the MAX1416 setup register automatically returns to MD = 00 and FSYNC = 0.

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