Pcc Data Protocol - Yaesu FT-8500/mh-39 Manual

PCC Dsts Protocol
Serial TTL data (0/+5V) at 9600 bps is sent via the
DATA IN
&
DATA GND pins of the DATA jack. Each
byte consists of one start bit, 8 data bits, no parity
and two stop bits. All transceiver settings can be
configured by sending commands in hexadecimal
code to the transceiver CPU via the FIF-232C inter-
'face. The coding table on the next page lists all
functions with the corresponding hexadecimal code.
Using the PCC Command Coding Table
First choose which function you wish to emulate.
Next, note its corresponding hexadecimal code. For
example, to activate the Spectra-Analyzer, a hex
code of 19h must be sent. Before starting, PCC
operation must first be enabled by sending the PCC
ON command (AAh); afterwards, following PCC
commands take effect. Note that up/dwn commands
(22h-25h) can also be entered, as well as press &
hold (FOh) for buttons that have dual functions, de-
pending on the duration they are held. In this way,
you can use a specially-written program or the com-
puter keyboard to control the FT-8500.
There are 60 instruction opcodes listed in the table
56 rr-esoo
FIF·232C
on the next page. The
PCC
control program mus
construct the appropriate instruction opcode, organ
izing the parameters, then send them to the 81 seria
input pin of the DATA jack on the transceiver.
Example: Tune to 145.520 MHz; this assumes direc
frequency entry (menu function 33) is enabled. Firs'
think how this would be entered using the keypac
The sequence would be:
Ci)~~~®~®~(g)~(Q)
• Determine the opcode for the desired instructior
using the PCC Commands Code table. These op-
codes should be stored in the program so they car.
be looked up when the user requests the corre-
sponding command. In this case the instruction is:
01h 04h 05h OSh 02h OOh "h
J l = h e x
ADMS-2 Programming Software
The ADMS-2 is a MS Windows® menu-driven PC-
compatible software that enables transceiver program-
ming with simple "point-and-c1ick" operation. This
allows sending transceiver settings to and from your
PC, creating memory files for customized settings. and
for cloning information to another FT-8500 instantly.
You can add and edit frequencies, including alphanu-
meric names. CTCSS tones, and repeater settings.
then load and operate. For more information on pricing
and availability, contact your Yaesu dealer.