3.3
Insert Socketed ICs
Insert SRAM into sockets at U15, U16
Insert 8085 CPU into socket at U9
Insert 28C256 EEPROM into socket at U17
Insert 8251A USART into socket at U19
Insert MAX232 level shifter into socket at U21
3.4
Solder Console Cable
Glitch Works parts kits include a DB25F connector for the 8085 SBC rev 3 console cable, as well as a
one-foot pigtail terminated in a 5-pin Molex KK-100 connector. This pigtail connects to J6,
RS-232
CONSOLE
. Use the following table to build a console cable appropriate to your intended terminal:
J6 Pin
DB25F DCE Pin
DB25F DTE Pin
Function
1
5
4
Request to Send
2
3
2
Transmit Data
3
2
3
Receive Data
4
4
5
Clear to Send
5
7
7
Signal Ground
J6 pin 4,
CTS
must
be asserted for the console USART to transmit data.
RTS
may be left unconnected
if hardware handshaking is not desired. Console pigtails provided with Glitch Works parts kits omit
pin 1,
RTS
.
A serial light box will help debug potential serial wiring problems, we highly recommend the addition
of a light box to your toolkit if you regularly interface RS-232 equipment. Our personal favorite is
the IQ Technologies SmartCable SC821 Plus.
6
Summary of Contents for 8085 SBC
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