MON08 Cyclone User Manual
49
P&E
Microcomputer
Systems, Inc.
MON08 CYCLONE
Class I
ICS Board with processor installed. This is the standard and most common
configuration of the ICS08 boards. In this configuration, the processor is
resident in one of the sockets on the ICS board itself. The processor can be
debugged and programmed in this configuration, and an emulation cable
containing all the processor I/O signals can be connected to the user’s
target board. In this configuration, the ICS board hardware can
automatically power up and down the processor in order to pass security in
the simplest fashion. The user has to be sure
not
to provide power from the
target, up through the emulation cable, to the processor pins themselves,
when this dialog appears. This is so that the software, when attempting to
establish communications, can fully power the processor down. The
software running on the PC controls power to the target via the serial port
DTR line. This configuration can be specified at startup in the software by
using the
ICS08
command-line parameter; otherwise the software will
remember the hardware configuration from session to session.
Class II
ICS Board without processor, connected to target viaMON08 Cable. In
thisconfiguration, there is no processor resident in any of thesockets of
the ICS board itself. The processor is mounted down in the target
system. The connection from the ICS board to the target is
accomplished via the 16-pin MON08 connector. In this configuration,
since the ICS does not control power to the processor, the user will be
prompted to turn the processor’s power supply on and off. Turning off
the power supply is necessary in order to be able to pass the initial
security mode check and access the flash on the processor. A simple
reset is not enough; to pass the security check, you must first force the
processor to encounter a POR (power-on reset) which requires that the
processor’s voltage dip below 0.1v. Once security has been passed,
resetting the device or re-entering the software should be easier. This
configuration can be specified at startup in the software by using the
MON08
command-line parameter; otherwise the software will
remember the hardware configuration from session to session.
Class III
Custom Board (no ICS) with MON08 serial port circuitry built in. In
this configuration, the ICS board is not used at all. The user must
provide a serial port connection from the PC, and provide all hardware
configuration necessary to force the processor into MON08 mode upon
reset. This includes resets both internal and external to the processor. In
this configuration, becausethe software does not directly control power
to the processor, the user will be prompted to turn the processor’s