Hi all,
As the long awaited update of the OSS-FET-Driver has still not
arrived, this is a minor update to the 0.5 series and it comes
with the idea of FET virtualization (0.6.0 will be released within
the next version of the OSS v3 driver)
As the v3 driver has a protocol to communicate with the FET via USB,
the first step is to redirect the output of the driver from USB
to socket. There is a patch which adds a new device to the driver,
called simulator. The patch will change no further functionality of
the driver and can be fully deactivated by a flag at compile time.
The new device acts as a socket client and looks on port 33333 for
a matching server (the port is set to this value at compile time,
later versions will add dynamic port setting).
The second part is a server which is listening to this port
and implements the protocol on the virtual FET side. This service
is able to interpret messages which are coming from the driver
and to create the necessary response messages. Data blocks
are reassembled if needed and assigned to the driver specific
abstraction layer (HAL). A public interface provides the collected
HAL data to the following instance.
Last but not least, the third part implements a simulator component.
The version in this release consist only a very simple model
which implements functionality which is needed to identify the
target (and only for 5xx). To do this, it needs some information
about the target which should be simulated and this information
is provided by the database extractor, introduced with one of the
last versions. The starting point is the target name type (for
example MSP430F5438A) which is selectable by the user and comes
from the server component. The model creates register and memory
section information directly from the data which stored in the
database component and assigned to the given target name.
The simulator works together with any debug tool which is
using the v3 driver for communication. Here is a test with
mspdebug:
mspdebug-0.19> ./mspdebug tilib -d simulator
MSPDebug version 0.19 - debugging tool for MSP430 MCUs
Copyright (C) 2009-2012 Daniel Beer <dlb...@gmail.com>
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
MSP430_Initialize: simulator
Firmware version is 30203015
MSP430_VCC: 3000 mV
MSP430_OpenDevice
MSP430_GetFoundDevice
Device: MSP430F5438A (id = 0x009f)
8 breakpoints available
MSP430_EEM_Init
Available commands:
= delbreak gdb load opt reset simio
alias dis help locka prog run step
break erase hexout md read set sym
cgraph exit isearch mw regs setbreak
Available options:
color gdb_loop iradix
fet_block_size gdbc_xfer_size quiet
Type "help <topic>" for more information.
Press Ctrl+D to quit.
(mspdebug) regs
( PC: 05c00) ( R4: cccc4) ( R8: cccc8) (R12: ccccc)
( SP: 05bfc) ( R5: cccc5) ( R9: cccc9) (R13: ccccd)
( SR: 00000) ( R6: cccc6) (R10: cccca) (R14: cccce)
( R3: 00000) ( R7: cccc7) (R11: ccccb) (R15: ccccf)
0x5c00:
05c00: aa aa aa aa DADD @R10, 0xaaaa(R10)
05c04: aa aa aa aa DADD @R10, 0xaaaa(R10)
05c08: aa aa aa aa DADD @R10, 0xaaaa(R10)
05c0c: aa aa aa aa DADD @R10, 0xaaaa(R10)
(mspdebug)
Downloadable as usual at:
https://sourceforge.net/projects/msp4linux/files/
Hubert
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