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examples code cleanup, more descriptive comments, more notes
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refactored timers and added interrupt behavior. see notes and
comments... also includes a crude vga hack that doesn't use timers.
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as a temporary workaround for the fact that SerialUSB is often blocking,
this crude implementation makes the low-level C usbSendBytes function
non-blocking (with a return code of bytes sent) and implements a 2ms
timeout in the wirish write() function.
also adds begin(), end(), getDTR(), getRTS(), pending(). device is still
initialized the old fashioned way during init() so that, eg, autoreset
will work. includes a simple multi-test program.
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The makefile 'install' target should upload to whatever the last build
target was, regardless of the environment's value of MAPLE_TARGET.
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Commit 70a18f96b6d55d23ce58ab40ffb61f172c8f6c73 forces init() to be
called before any statically allocated object constructors for the IDE.
This adds the change to the examples for users not using the IDE.
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Commit 70a18f96b6d55d23ce58ab40ffb61f172c8f6c73 forces init() to be
called before any statically allocated object constructors for the IDE.
This adds the change to the examples for users not using the IDE.
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Major build system rewrite. New and exciting:
1. Proper dependency tracking. All source files including header files
should be properly tracked and recompiled as necessary when they are
changed.
2. Build-type tracking. If the target changes from 'ram' to 'flash,'
for example, the build system will force a rebuild rather than
incorrectly link modules to a different address.
3. New targets:
The old 'ram,' 'flash,' and 'jtag' targets have been replaced with
the environment variable MAPLE_TARGET, which controls the link address.
Users can either export it to their environment, or pass MAPLE_TARGET on
the command-line. Once this is set, sketches can be compiled with 'make
sketch,' or simply 'make.'
Note: the default is MAPLE_TARGET='flash.'
The target 'install' now automagically uploads the sketch to the board
using the appropriate method.
The 'run' target has been renamed to 'debug.' It starts an openocd gdb
server.
4. Odds and ends:
-Verbose and 'quiet' modes. Set V=1 for verbose compilation, the default
is quiet.
-Object file sizes and disassembly information is generated and placed
in build/$(BOARD).sizes and build/$(BOARD).disas, respectively.
-Parallel make with -j should speed things up if you have multiple
cores.
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too.
Signed-off-by: Perry Hung <iperry@alum.mit.edu>
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connection
flip flopped back and forth on how much work should be done here. For now its like 5 lines of changes
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minor
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fixed some blocking issue on serial tx, improperly checking for connection.
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current version gets stuck in the isr somewhere. not sure why or where. must debug.
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now we reset from recv bytes. After receiving the DTR/RTS toggle the next byte in from usb is parsed as the program_delay. For now, this just delays the reset for a period to close the serial port gracefully. Later, this delay will perhaps inform the bootloader of how long to live for...
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It wasnt used, and was causing a compiler warning to get thrown. It isnt needed, not sure why I added it in the first place
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stupid, stupid mistake.
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aj wrote this and had comments saying fix this wouldn't work, but
it seems to...
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