User`s manual

PK2200 System Development
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Figure 4-2. 3x4 Keypad Mode Settings
Figure 4-3. JP4 Mode Settings
Do not jumper more than one pair of pins to configure a mode.
Development Options
Memory Options
Programs for the PK2200 are written and compiled on a PC and then
downloaded to the PK2200 memory and executed. There are three memory
options for program storage on the PK2200:
(1) Battery-backed RAM,
(2) EPROM,
(3) Flash EPROM.
Battery-Backed RAM
Battery-backed RAM is a standard feature on every PK2200. RAM is
available in 32K, 128K, and 512K. During development you can use RAM
to download and execute programs. This speeds development because you
don’t need to program and erase EPROMs. Once a program is fully
debugged and running, you can create a binary file and use an EPROM
burner to store the program in EPROM. Since the RAM is used to store
both data and program, Z-World recommends using a larger RAM during
development. If the PK2200 has flash EPROM installed, the program will
be compiled to flash EPROM instead of RAM.
Run ModeProgram Mode
789
456
12
3
0
-
.
789
4
56
123
-
.
0
JP4
JP4
19,200 bps
28,800 bps
1
2
3
4
5
6
78
Program Mode
1
2
3
4
5
6
78
Run Mode
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