| Commit message (Collapse) | Author | Age | Files | Lines |
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Extend the wirish attachInterrupt() and detachInterrupt() interface to
work with all GPIOs.
Note: The STM32 external interrupt lines are multiplexed between GPIO
ports. While any GPIO can be used as an external interrupt, not all of
them can be used at the same time. Each EXTI[n] line selects between
PA[n], PB[n], PC[n], etc. For example, line EXTI5 can be used with STM32
pins PA5, PB5, or PC5, but not all at the same time. See table:
EXTI Line Maple Pin STM32 Pin
0 D2 PA0
0 D27 PB0
0 D15 PC0
1 D3 PA1
1 D28 PB1
1 D16 PC1
2 D1 PA2
2 D17 PC2
2 D25 PD2
3 D0 PA3
3 D18 PC3
4 D10 PA4
4 D19 PC4
5 D13 PA5
5 D4 PB5
5 D20 PC5
6 D12 PA6
6 D5 PB6
6 D35 PC6
7 D11 PA7
7 D9 PB7
7 D36 PC7
8 D6 PA8
8 D14 PB8
8 D37 PC8
9 D7 PA9
9 D24 PB9
9 D38 PC9 (BUT)
10 D8 PA10
10 D29 PB10
10 D26 PC10
11 D30 PB11
12 D31 PB12
13 D32 PB13
13 D21 PC13
14 D33 PB14
14 D22 PC14
15 D34 PB15
15 D23 PC15
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Interrupts should be cleared by writing to the interrupt clear-enable
register (ICER). This commit fixes an improper read-modify-write on
NVIC_ICER[n] that incorrectly cleared interrupt-enable bits on
non-designated channels.
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whoops.
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Redirect thread-mode execution to a fail routine which throbs the LED to
indicate a hard fault. Because the fail routine runs in thread mode
with interrupts on, USB auto-reset should now work. Test by executing
some bogus instruction (e.g. *(volatile int*)0xf34fdaa = 0;) and check
that the auto-reset continues to work.
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Tested on wishield, would like some more testing if anybody has more
things that speak spi
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Oooooops.
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ripped out marti's SystemTick for the sake of simplicity and added a
systick_resume function to libmaple. new example program demonstrates
the functionality, also demonstrates micros()/USB bug
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also removed an old ASSERT()
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Still not working but fixed a lot of merge errors
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This compiles for both maple and maple_native but is untested.
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Sort of ugly changes. Compiles but untested.
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This version throws "defined but unused" warnings which could probably
be squashed with #pragma
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Documented; see ./notes/fsmc.txt. Not yet integrated into .ld scripts or
fully tested
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Fixed millis(), it was just wrong, before.
Added micros(), not extensively tested.
New implementation of delayMicroseconds(). Should be more consistent
now.
Added a handful of nvic routines to enable/disable interrupts.
Cleaned up systick
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Save space on debug strings, performance. Perhaps we should consider
some form of user-facing assert.
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Fixed a bug where the maximum baud rate was incorrectly set to 225000
General cleanup
Use new rcc and nvic APIs
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This is just a change of macro name with zero impact on the actual
binary. Looking at page 87/1003 of the STM reference manual, bits [0:1]
are the SW register which is modifiable by software, while [2:3] are SWS
and are set only by hardware.
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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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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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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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