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WriteNow! Hardware Manual

 

 

 
 

15 

Demultiplexer Modules 

 

 
The demultiplexer module is designed to increase the number of ISP lines to be 
managed. A stack of up to 4 boards could be mounted to each ISP connector. It is built 
as a tower in order to save space. The Reed relay technology ensures true galvanic 
isolation and reliability.  
For the power supply: a special plug to plug power cable is provided with demultiplexer 
in order to power both the 

products through the WriteNow!’s 15V adapter.

 

No external lines are needed in order to control the multiplexer since the lines are 
provided by WriteNow! ISP connector A and B (available for external expansion module 
purpose).  

 

 

Models 

N

umber of boards in 

parallel

 

Demux model 

Number of board in demultiplexer  

WN-PRG01A 
 

WN-PRG02A 

WN-DM2X2A 

WN-DM2X3A 

WN-DM2X4A 

WN-PRG04A 

WN-DM4X2A 

WN-DM4X3A 

12 

WN-DM4X4A 

16 

WN-PRG08A 

WN-DM8X2A 

16 

WN-DM8X3A 

24 

WN-DM8X4A 

32 

Summary of Contents for WriteNow! Series

Page 1: ...WriteNow Series Single and Parallel In System Programmers Hardware Manual Rev 2 00 UM00010200EN...

Page 2: ...s and labor or will provide a replacement in exchange for the defective product Parts modules and replacement products used by Algocraft for warranty work may be new or reconditioned to like new perfo...

Page 3: ...m Setup 9 Software setup 9 Hardware setup 9 Power Supply 9 Project setup 10 Connect to Target Device 10 Hardware Test 10 Programming Drivers and Licenses 10 3 Standalone Mode 11 Overview 11 Signals 11...

Page 4: ...rammable devices from various manufacturers and have a compact size for easy ATE fixture integration They work in standalone or connected to a host PC RS 232 USB LAN connections are built in and are p...

Page 5: ...us WriteNow family models WriteNow Model Comparison Feature WN PRG01A WN PRG02A WN PRG04A WN PRG08A General Features Programming Sites 1 2 4 8 Power Supply 15 25V 15 25V 15 25V 15 25V Device Type Supp...

Page 6: ...s Yes 100Mbit s Yes 100Mbit s USB Yes full speed Yes full speed Yes full speed Yes full speed Low Level Interface Isolated START OK ERR BUSY PRJ_SEL 0 5 START START_ENA 1 2 OK ERR 1 2 BUSY PRJ_SEL 0...

Page 7: ...ending on the model the various connectors are located 1 The POWER connector accepts a DC voltage between 15V and 25V 2 The LAN USB and RS 232 connectors are used to interface the instrument to a PC 3...

Page 8: ...4 OK ERR result of the programming Each programming site has an OK ERR LED which turns green if the programming on that site has been successful red otherwise WN PRG01A LEDs WN PRG02A LEDs WN PRG04A...

Page 9: ...odel and specify your WriteNow model and communication settings with the PC WriteNow can be connected through USB LAN and serial port RS232 Hardware setup To setup WriteNow you must follow the steps b...

Page 10: ...can work in standalone thus without a connection to a PC By building your own PC software that interfaces to the instrument for more information see WriteNow API on Programmer s Manual Hardware Test...

Page 11: ...input Define which project to execute START_ENAx lines input Select which programming site s to enable Active low START line input Executes the project specified by PRJ_SELx lines on the programming s...

Page 12: ...ation select Settings Hardware Settings In the window that will appear associate PRJ_SEL values to project names by clicking the Set Project button for each PRJ_SEL configuration you wish to setup Pre...

Page 13: ...lvanic isolation and reliability When you create a programming project using the Project Generator application relays are by default closed at the beginning of the project with the relay o close comma...

Page 14: ......

Page 15: ...ial plug to plug power cable is provided with demultiplexer in order to power both the products through the WriteNow s 15V adapter No external lines are needed in order to control the multiplexer sinc...

Page 16: ......

Page 17: ...SP Connector WN PRG04A ISP Connector WN PRG08A ISP Connectors Low level interface S ite1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 C B A WN PRG01AISPConnector S ite2 Site1 WN PRG02AISPConnector 1 2 3 4 5...

Page 18: ...terface Connector Low Level Interface Connector Low Level Interface Connector 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 C B A One of the most important parameters to take into account for ISP wiring is t...

Page 19: ...1 Project Start Enable Input internal pull up B7 B7 B7 START_ENA2 Site 2 Project Start Enable Input internal pull up C7 C7 C7 START_ENA3 Site 3 Project Start Enable Input internal pull up A8 A8 START_...

Page 20: ...e programmer ATE and Target Ground Domains ATE System Low Level Interface IS P Target Board ATEGND GNDI GND TARGETGND In order to avoid undesired current paths between the programmer and the target bo...

Page 21: ...ENAx BUSY OK ERRx voltage 0 7 6 0V Operating Ranges Power supply voltage 12 25V ISP SxL0 1 7 voltage 0 5 5V ISP SxPPS voltage 1 5 15V ISP SxPPS current 300mA ISP SxRLY voltage 0 28V Low level interfac...

Page 22: ...connector 3 rows 48 pins 180 female C style Manufacturer Conec Manufacturer Part Number 122A10619X Catalog Part Number Mouser 706 122A10619X For soldering DIN41612 connector 3 rows 48 pins female R A...

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