Download MLDL2000 User Manual

MLDL 2000
USER MANUAL
Assembling the MLDL2000
The MLDL2000 comes as 3 (three) assembled PCB’s, that need to be connected together and put into a Card Reader Housing.
Please follow the steps as described carefully. First read through the complete assembly instructions and make certain that you
fully understand these before starting. The 3 PCB’s are:
1. I/O and Supply print: contains the levelshifters/drivers
and the power supply
2. USB Interface PCB: contains the USB interface
3. CPLD and Memory PCB: contains the CPLD and
memories
(1)
If you choose to use another housing you are free to do
whatever you like, as long as the connections between the
PCB’s are made according to the assembly instruction. Do not
( 2)
make the wires between the PCB and the HP41 really long, as
this might make the MLDL2000 unstable, although the
breadboard prototype had wires of 10-20 cm long.
You will receive the MLDL2000 as a kit with the parts as
shown in the picture:
• Interface and Power PCB: the PCB with the (obvious)
HP41 module connector pads and all these diodes
• USB PCB: the PCB with the shiny oscillator
• CPLD PCB: the print with the 3 large IC’s: the heart and soul of the MLDL2000
(3)
The picture below shows an overview of all the connections that must be made.
G
Backup BAT -
M
J
Backup BAT +
Backup CAP
Charge
K
F
C
B
F
D
H
Ext BAT +
I
L
Ext BAT -
A
E
HPHP-41 module connector
USB BB-connector
Version 1.51
Meindert Kuipers
10/23/2008
www.kuiprs.nl
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