MAX187EVKIT-DIP Maxim Integrated, MAX187EVKIT-DIP Datasheet - Page 3

• Manufacturer Part Number: MAX187EVKIT-DIP
• Description: Data Conversion IC Development Tools Programmers, Development Systems
• Manufacturer: Maxim Integrated
• Series: MAX187, MAX189r

Specifications of MAX187EVKIT-DIP

• Interface Type: QSPI, Serial (SPI, Microwire)
• Factory Pack Quantity: 1

A small bootstrap program is stored in the EPROM
located on the 68HC16 board. The EPROM resident
program initializes the 68HC16, tests the static RAM,
configures the chip-select logic, establishes serial com-
munications with the host, and downloads a program
into RAM. It starts operating on power-up or whenever
the RESET button is pressed. After RESET, it tests the
RAM and then waits to receive a character on its serial
port before transmitting its identification banner.
KIT187.S19 and MIN187.S19 are 68HC16 RAM-resident
programs that are transferred from disk to the static RAM
on the 68HC16 module. They are used transparently by
the example programs. The example programs that do
not require the full command set of KIT187 download the
MIN187 program, which is smaller and implements only
the read and collect commands. Because the MIN187
occupies less user RAM, more sample data can be col-
lected (MIN187 can collect approximately 400 more
samples than KIT187 before it must upload the samples
to the host.) When the KIT187 program is running, it
offers the commands listed in Table 1. The MIN187 pro-
gram commands are listed in Table 2.
Table 1. Commands Available when
KIT187.S19 is Running
__________________________of Software
Space
________________Detailed Description
KEY
M
R
O
D
V
S
L
T
?
Read the MAX187 and print result in decimal.
Repeatedly read the MAX187 and print result in
decimal.
Read the MAX187 and print result in hexadecimal.
Oscilloscope test; observe system timing by operat-
ing the MAX187 at high speed without processing
the data.
Set the state of the SHDN pin.
Display low-power menu.
Set power-up delay and sleep time
(low-power menu only).
Test the accuracy using the current power-up delay
and sleep time settings (low-power menu only).
Return to main menu (low-power menu only).
List the available commands.
MAX187 Evaluation System/Evaluation Kit
_______________________________________________________________________________________
EPROM Resident Program
RAM Resident Program
FUNCTION
MAX187.EXE, which runs on an IBM-compatible comput-
er, is a terminal program that establishes communication
with the 68HC16 module and allows the user to down-
load and run a Maxim-provided RAM resident program.
The serial communication baud rate is initiated at 1200
baud to ensure proper operation with slower systems.
The MAX187.EXE program provides several commands
that are associated with the host computer. These func-
tions are listed in Table 3.
The MAX187.EXE program can store the text of a termi-
nal session in a log file. To begin recording the terminal
session, press ALT+O [the letter O]. The program will
ask for a file name. Press ENTER to accept the default
file name, or type in a different name. If there is already
a file with that name, the old file will be erased. To close
the file, press ALT+C. The log file will contain the com-
plete text of the terminal session from the time when the
file is opened until the file is closed.
The program SAMPL187.BAS samples the MAX187
and draws a graph of voltage over time. Preset sample
rates range from 2.5ksps to 10ksps. The time base is
approximate and there is no triggering mechanism, so
this program is only suitable for observing the wave-
forms of an external frequency generator.
Table 2. Commands Available after
MIN187 has been Downloaded
KEY
ESC
c
?
r
Print RAM resident program version and list of com-
mands available.
Read the MAX187 and display the value as a 2-byte
hexadecimal number.
Collect and upload a number of data samples to the
host PC. Samples can be collected at full speed, or
collected with a fixed delay, or collected in accor-
dance with an external clock. Approximately 16,000
samples may be collected and they can be dis-
played in either decimal or in hexadecimal.
Exit the evaluation software.
Personal Computer Program
FUNCTION
Graphing Program
3