MAX1241 Evaluation System/Evaluation MAX1241 evaluation kit) asse

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

MAX1241 Evaluation System/Evaluation MAX1241 evaluation kit) asse

Datasheet Thumbnail

Top Searches for this datasheet

19-1160; 8/97
MAX1241 Evaluation System/Evaluation
MAX1241 evaluation kit) assembled tested board that demonstrates 12-bit MAX1241 analog-to-digital converter. MAX1241 evaluation system system) complete, low-cost, single-channel data-acquisition system consisting MAX1241 Maxim microcontroller (µC) module. PC-compatible software provides handy user interface exercise MAX1241's features. Source code provided. Order system comprehensive evaluation MAX1241 using personal computer. Order have already purchased module with another Maxim system, custom other µC-based systems. MAX1241 evaluates both MAX1241 MAX1240. evaluate MAX1240, order free sample MAX1240BCPA along with MAX1241 kit.
_Features
Proven Board Layout Complete Evaluation System Convenient On-Board Test Points Data-Logging Software Source Code Provided Fully Assembled Tested
Evaluates: MAX1240/MAX1241
_Ordering Information
PART MAX1241EVKIT-DIP MAX1241EVL11-DIP TEMP. RANGE +70°C +70°C BOARD TYPE Through-Hole Through-Hole
_MAX1241 Component List
DESIGNATION JU1, None DESCRIPTION 0.01µF capacitor 0.1µF capacitors 4.7µF capacitor 10µF capacitor 0.047µF capacitor 2x20 header 6-pin header 2-pin headers resistor MAX1241BCPA MAX872CPA board
MAX1241 System _Quick Start
MAX1241 fully assembled tested. Follow these steps verify board operation. turn power supply until connections completed. Copy files from distribution disk your hard disk blank floppy disks. MAX1241 software should directory. necessary files distribution disk's root directory, source code SOURCE subdirectory. SOURCE subdirectory required operate kit. Make sure that jumper open closed (Table Carefully connect boards aligning MAX1241 kit's 40-pin header with 68L11D module's 40-pin connector. Gently press them together. boards should flush against another. Connect power source (16V max) module. This located terminal block next on/off switch, upper-right corner module. Observe polarity marked board.
_MAX1241 EVL11 Component List
DESCRIPTION MAX1241EVKIT-DIP 68L11D Module (68L11D MODULE)
Maxim Integrated Products
free samples latest literature: http://www.maxim-ic.com, phone 1-800-998-8800. small orders, phone 408-737-7600 ext. 3468.
MAX1241 Evaluation System/Evaluation Evaluates: MAX1240/MAX1241
Connect cable from computer's serial port module. using 9-pin serial port, straight-through, 9-pin, female-to-male cable. only available serial port uses 25-pin connector, standard 25-pin 9-pin adapter required. software checks modem status lines (CTS, DSR, DCD) confirm that correct port been selected. Start MAX1241 software setting current directory match directory containing Maxim programs, then type program name "MAX1241". turn disconnect module while program running; will have restart program. program will which port module connected Press space until correct serial port highlighted, then press ENTER. MAX1241 program will terminal-emulation mode. Turn power module. module will display logon banner test RAM. Download resident program module pressing ALT+L (i.e., hold down strike key). program prompts file name. Press ENTER download file.
Systems Using Logic
Systems that have both logic must provide level translation MAX1241's data output. level translation necessary inputs.
Changing Reference Voltage
MAX872 2.5V reference. supply different external reference, open apply reference voltage between VREF GND. Refer MAX1241 data sheet reference voltage requirements.
Table Jumper Settings
JUMPER STATE Closed Open (default) Closed (default) Open Force SHDN float. Disable internal reference (MAX1240). Drive VREF with on-board MAX872 reference. Disconnect MAX872 reference. internal reference (MAX1240) drive VREF with user-supplied reference. FUNCTION module controls state SHDN.
Press ALT+C switch control-panel screen after resident program been successfully downloaded. Apply input signals MAX1241 board. Observe readout screen. Table lists commands that available from control-panel screen. Before turning power MAX1241 kit, exit program pressing ALT+X.
Detailed Description Software
software allows user control throughput rate, power-up delay, reference-range setting. also provides data logging. Refer Table complete listing available features. software program (KIT1241.L11) loaded into 68L11D module operates 6.7ksps throughput. faster throughput, download program FAST1241.L11 step MAX1241 System Quick Start section. This program throughput rate approximately 14ksps.
Detailed Description Hardware
MAX1241 Stand-Alone
MAX1241 provides proven board layout facilitate evaluation MAX1241. must interfaced appropriate timing signals proper operation. Refer MAX1241 data sheet timing requirements.
Evaluating MAX1240
evaluate MAX1240, turn power kit, remove MAX1241, replace with MAX1240BCPA. Select internal reference opening closing JU1.
MAX1241 Evaluation System/Evaluation Evaluates: MAX1240/MAX1241
Table Command Reference
FUNCTION Display input codes decimal format. Delay between samples. Delays longer than second handled otherwise, module handles delay. Timing approximate should verified with oscilloscope. Enable disable data logging. command-line option specified, command prompts log-file name. Oscilloscope demo. Samples collected discarded quickly possible. Observe waveforms timing with oscilloscope. Power-up delay. Timing approximate should verified with oscilloscope. When VREF VDD, power-up delay necessary should zero. Power-up delay used regardless which power-cycling mode selected. Sample input high speed. sampling rate controlled delays. program overhead, commands operate different rates. Timing should verified with oscilloscope. Display input voltages. Write marker into data-log file. Change assumed value VREF. Select power-down mode. Switch back terminal mode. Exit DOS.
Table Command-Line Options when Starting MAX1241 Software
COMMAND MONO -Lfilename FUNCTION Default COM1 serial port. Default COM2 serial port. with monochrome display. Open file "filename" data logging, enable data-logging commands. Specify actual measured voltage (nominally 2.5V). List command-line options.
VREF
ALT+T ALT+X
MAX1241 Evaluation System/Evaluation Evaluates: MAX1240/MAX1241
68L11D MODULE J1-1 J1-2 J1-3 J1-4
10µF
PA1/IN2
J1-7 J1-8 J1-28
SHDN SCLK PA3/SHDN
MAX1241
SHDN DOUT SCLK
0.1µF
PA3/IN4/OUT5 J1-30
0.01µF
PA6/OUT2
J1-33
DOUT DOUT SCLK
PA7/PAL/OUT1 J1-34 MISO J1-35 J1-37 J1-38
MAX872CPA
COMP VOUT
0.1µF
4.7µF
VREF (2.5V NOMINAL)
TEST POINTS
J7-1 0.1µF
0.047µF
J7-2
J7-3
SCLK
J7-4
J7-5
DOUT
J7-6
SHDN
Figure MAX1241 Schematic
MAX1241 Evaluation System/Evaluation Evaluates: MAX1240/MAX1241
1.0"
Figure MAX1241 Component Placement Guide
MAX1241 Evaluation System/Evaluation Evaluates: MAX1240/MAX1241
1.0"
Figure MAX1241 Board Layout-Component Side
MAX1241 Evaluation System/Evaluation Evaluates: MAX1240/MAX1241
1.0"
Figure MAX1241 Board Layout-Solder Side
MAX1241 Evaluation System/Evaluation Evaluates: MAX1240/MAX1241
NOTES
68L11D Module
_General Description
68L11D module assembled tested board intended with Maxim's low-voltage dataacquisition evaluation kits kits). module uses Motorola's MC68L11D0FN2 microcontroller (µC) collect data samples using interface. requires computer external power supply +16V, specified appropriate manual. Maxim's 68L11D module allows customers evaluate selected Maxim products. intended microprocessor development platform, Maxim does support such use.
_Component List
DESIGNATION C4-C9, C12-C18 C10, JU1, LED1 DESCRIPTION 22pF ceramic capacitors 0.01µF ceramic capacitor 0.1µF ceramic capacitors 22µF, tantalum capacitors 1N4001 diode 40-pin, right-angle header 2-circuit terminal block right-angle socket Open Light-emitting diode 10M, resistor 100k potentiometer 274k, resistor 133k, resistor 200, resistor resistor pack, common Slide switch Momentary push-button switch Motorola MC68L11D0FN2 Maxim MAX3232CSE 74HC00 Maxim MAX667CSA static 28-pin socket Motorola MCM6306DJ15 28-pin socket 74HCT245 Maxim MAX708RCSA 74HC573 74HC139 8MHz crystal
68L11D Module
_Getting Started
system components guaranteed their various manufacturers over +3.6V power-supply range. system components guaranteed over entire 2.5V power-supply adjustment range. Verify correct operation using following procedures: Connect power source (16V max) module terminal block located next on/off switch, upper-right corner module. Turn power switch Connect cable from computer's serial port module. using 9-pin serial port, straight-through, 9-pin, female-to-male cable. only available serial port uses 25-pin connector, standard 25-pin 9-pin adapter required. Start evaluation software When program asks which port module connected press space until correct port highlighted, then press ENTER. software will terminal-emulation mode. using generic terminal-emulation program instead Maxim software, select 1200 baud, eight-bit character, parity, stop bit. Send space character start monitor program.) Adjust trim potentiometer desired supply voltage. Measure between test point ground. mounting hole next grounded. verify correct system operation, press key, type capital "T", then select countdown memory test. memory test fails other malfunction reported, voltage low; increase repeat from step Turn power switch connect board appropriate Maxim board.
Maxim Integrated Products
free samples latest literature: http://www.maxim-ic.com, phone 1-800-998-8800. small orders, phone 408-737-7600 ext. 3468.
68L11D Module 68L11D Module
_Detailed Description
Power Requirements
68L11D module draws power from user-supplied power source connected terminal block Note positive negative markings board. Nominal input voltages should between +16V. input current requirement 68L11D module typically 20mA plus current drawn evaluation kit). supply MAX667 low-dropout CMOS regulator. Trim potentiometer sets supply voltage, with adjustment range approximately 2.5V Although board designed primarily applications, circuitry rated withstand levels. 2-pin header (J1) connects 68L11D module Maxim kit. Table lists function each pin. 68L11D module only with kits that designed support download only code that targeted Maxim 68L11D module. Downloading incorrect object code into 68L11D module will produce unpredictable results. boot (U10) checks system waits commands from host. Refer manual specific startup procedures.
Software
software supplied disk with kit. Software operating instructions included manual.
Serial Communications
RS-232 serial port, designed compatible with 9-pin serial port. straight-through male-to-female cable connect serial port. only available serial port 25-pin connector, standard 25-pin 9-pin adapter. Table shows J3's pinout. hardware-handshake lines used evaluation software confirm that connected correct serial port.
68L11D Microcontroller (µC) Module Hardware
Motorola's 68L11D Contact Motorola information, development, support. MAX708R supervisory circuit module monitors logic supply, generates power-on reset, produces reset pulse whenever manual reset button (SW2) pressed. Note that MAX708R resets supply voltage falls below 2.66V. module provides 32kbytes external CMOS static (U5). 74HCT245 octal buffer (U6) provides access eight-bit port 40-pin interface connector. This memory-mapped port consists Intel-compatible read write strobes, four chip selects, four address LSB's, eight data bits. Table lists address ranges each memory-mapped elements 68L11D module. MAX3232 3V-powered, RS-232 interface voltage-level shifter. built-in charge pump uses external capacitors generate output voltages necessary drive RS-232 lines.
Table Serial Communications Port
NAME None FUNCTION Handshake; hard-wired RS-232-compatible data output from 68L11D module RS-232-compatible data input 68L11D module Handshake; hard-wired Signal ground connection Handshake; hard-wired Handshake; hard-wired Handshake; hard-wired Unused
68L11D Module 68L11D Module
Table 40-Pin Data-Connector Signals
20-26 NAME ADDR0 ADDR1 ADDR2 ADDR3 DB1-DB7 PA0/IC3 PA1/IC2 PA2/IC1 PA3/IC4/OC5 PA4/OC4 PA5/OC3 PA6/OC2 PA7/OC1/PAI MISO MOSI RESERVED FUNCTION Ground Unregulated input voltage from on-board MAX667 regulator Read strobe Write strobe Chip select 8000-8FFF Chip select 9000-9FFF Chip select A000-AFFF Chip select B000-BFFF Address (LSB) Address Address Address Data (LSB) Data bits General port (LSB) General port General port General port General port General port General port General port master-in, slave-out master-out, slave-in serial clock Reserved factory System E-clock output slave-select input
Table 68L11D Module Memory
ADDRESS RANGE (HEX) 0000-7FFF 8000-8FFF 9000-9FFF A000-AFFF B000-BFFF C000-C03F C040-C0FF C100-CFFF D000-D03F D040-DFFF E000-FFFF FUNCTION User area (U5) External chip-select External chip-select External chip-select External chip-select Unused Internal (U1) Unused Internal register area (U1) Unused Boot (U10)
68L11D Module 68L11D Module
VPREREG 1N4001 22µF 0.1µF 0.1µF C1C2+ C20.1µF 0.1µF 0.1µF J3-7 J3-2 J3-3 J3-4 J3-6 J3-5 J3-9 PA0/IN3 PA1/IN2 PA2/IN1 PA3/IN4/OUT5 PA4/OUT4 PA5/OUT3 PA6/OUT2 PA7/OUT1/PULSE ACCIN MISO MOSI RESET XIRQ MC68L11D0FN2 PD6/AS PD0/RXD PD1/TXD PD7/R/W PD2/MISO PD3/MOSI PD4/SCK PD5/SS RESET XIRQ/VPP IRQ/CE XTAL EXTAL MODA/LIR MODB/VSTBY MODA MODB J3-1 RESET 0.1µF 0.01µF J3-8
MAX667 VOUT VSET SHDN 1.255V 100k 133k 274k 22µF
MAX3232
MAX708R
RESET RESET RESET
POWER CONNECTIONS 0.1µF
22pF
8.00MHz
22pF
Figure 68L11D Module Schematic Diagram
68L11D Module 68L11D Module
74HC139
IOBUFFER CS-11XXX STATIC
0.1µF
74HC139
IOBUFFER CS8XXX CS9XXX CSAXXX CSBXXX
0.1µF
74HC00 0.1µF 74HC00 74HC00 74HC00
27LV64
0.1µF
DATA-XX1X
CS-11XXX
POWER CONNECTIONS 0.1µF
74HC573
Figure 68L11D Module Schematic Diagram (continued)
68L11D Module 68L11D Module
LED1 VPREREG CS8XXX EXTD0 EXTD1 EXTD2 EXTD3 EXTD4 EXTD5 EXTD6 EXTD7 CSAXXX EXTD0 EXTD2 EXTD4 0.1µF EXTD6 PA0/IN3 PA2/IN1 PA4/OUT4 PA6/OUT2 MISO XIRQ J1-1 J1-3 J1-5 J1-7 J1-9 J1-11 J1-13 J1-15 J1-17 J1-19 J1-21 J1-23 J1-25 J1-27 J1-29 J1-31 J1-33 J1-35 J1-37 J1-39 J1-2 J1-4 J1-6 J1-8 J1-10 J1-12 J1-14 J1-16 J1-18 J1-20 J1-22 J1-24 J1-26 J1-28 J1-30 J1-32 J1-34 J1-36 J1-38 J1-40 VPREREG CS9XXX CSBXXX EXTD1 EXTD3 EXTD5 EXTD7 PA1/IN2 PA3/IN4/OUT5 PA5/OUT3 PA7/OUT1/PULSE ACCIN MOSI RESERVED
IOBUFFER
74HCT245
MODA MODA MODB
MODB
Figure 68L11D Module Schematic Diagram (continued)
68L11D Module 68L11D Module
Figure 68L11D Module Component Placement Guide
Figure 68L11D Module Board Layout-Component Side
68L11D Module 68L11D Module
Figure 68L11D Module Board Layout-Solder Side
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
_Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 1997 Maxim Integrated Products Printed registered trademark Maxim Integrated Products.

MAX1241 Evaluation System/Evaluation MAX1241 evaluation kit) asse

Top Searches for this datasheet

Other recent searches