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This is an empty stub to simply allow use of complex types with a
non global static lifetime. For more complex handling the function
'atexit' can be redefined in user code.
For more information see:
https://github.com/arduino/Arduino/pull/2229
https://github.com/arduino/Arduino/issues/1919
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Fix of a bug #2199
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Fix two compiler warnings generated by updated toolchain
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Stream::find(char *target) passes an empty terminator string to
Stream::findUntil(char *target, char *terminator) which caused a compiler
warning with the updated toolchain, so cast it to a char*.
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github.com:matthijskooijman/Arduino into matthijskooijman-ide-1.5.x-timer-variant
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See #2080 for more details.
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These chips were previously supported, but since parity error checking
was added, this support has broken. Most chips define UPE0 (etc.) for
the parity error bit. Some chips don't have numbered UARTS so only
define UPE and even fewer define PE instead of UPE. This adds support
for those chips again.
Closes: #2137
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See #2080 and #2139.
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See #2080
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See:
https://github.com/arduino/Arduino/commit/9ac7e30252fce5b9dafde3288519b020b73c37bd#commitcomment-6718676
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Fixes bug where Serial.read() would always return 0 as the first byte.
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Fix of a bug in Stream.cpp
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See #1953
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Stream::find(char *target) passes NULL as “terminator” to Stream::findUntil(char *target, char *terminator), which immediately dereferences it by passing it on to strlen() :
bool Stream::find(char *target)
{
return findUntil(target, NULL);
}
// as find but search ends if the terminator string is found
bool Stream::findUntil(char *target, char *terminator)
{
return findUntil(target, strlen(target), terminator, strlen(terminator));
}
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Stream::find(char *target) passes NULL as “terminator” to Stream::findUntil(char *target, char *terminator), which immediately dereferences it by passing it on to strlen():
bool Stream::find(char *target)
{
return findUntil(target, NULL);
}
// as find but search ends if the terminator string is found
bool Stream::findUntil(char *target, char *terminator)
{
return findUntil(target, strlen(target), terminator, strlen(terminator));
}
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Read CDC data from USB FIFO on demand instead of in ISR.
Remove superfluous ring buffer.
Signed-off-by: Paul Brook <paul@nowt.org>
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If the Start of Frame interrupt triggers just after the call
to USB_SendSpace in USB_Send then we can get data loss.
When the first bank is full and the second partially full,
the SOF handler will release the second bank via USB_Flush.
Data is then lost due to overflow as USB_Send continues writing data
to the now-closed bank.
Fix this by re-checking the FIFO status inside LockEP, immediately before
doing the data write.
Signed-off-by: Paul Brook <paul@nowt.org>
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Close #1951
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github.com:matthijskooijman/Arduino into matthijskooijman-ide-1.5.x-hwserial-cleanup
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Conflicts:
build/shared/examples/01.Basics/Blink/Blink.ino
build/shared/examples/09.USB/Keyboard/KeyboardReprogram/KeyboardReprogram.ino
build/shared/examples/10.StarterKit/p02_SpaceshipInterface/p02_SpaceshipInterface.ino
hardware/arduino/cores/arduino/HardwareSerial.cpp
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Some devices, such as the atmega2560 or the atmega256rfr2 have a timer1c
output. It seems this output is not connected to anything on the Arduino
Mega, but this allows using it on third party hardware nonetheless.
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Before, HardwareSerial1+.cpp were a copy of HardwareSerial1.cpp with all
0's replaced by the corresponding number. This would mean that e.g.
the Serial1 object would use the UBRRL register instead of UBRR1L when
it was defined, or the USART_RX_vect instead of USART1_RX_vect.
In practice, this would neve actually cause problems, since:
- No avr chip currently has both the non-numbered registers as well as
numbered registers.
- HardwareSerial.h would only define HAVE_HWSERIALx when the
corresponding numbered register is defined (except for
HAVE_HWSERIAL0, which is also defined when the unnumbered registers
are present).
Furthermore, before both the UARTx_xx_vect and USART_x_xx_vect was used.
Looking at the include files, only UART1_xx_vect is actually used (by
iom161.h), the others use USARTx_xx_vect. For this reason,
HardwareSerial1.cpp keeps the preprocessor conditional to select either
UART or USART and the other files use USART unconditionally.
While we're here, also fix the compiler error message when no valid ISR
name was found (it previously said "for the first UART" in all cases).
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See #1877
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See #1877
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See #1877
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into ide-1.5.x
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In commit 0e97bcb (Put each HardwareSerial instance in its own .cpp
file), the serial event handling was changed. This was probably a
copy-paste typo.
The effect of this bug was that SerialEvent3 would not run, unless
SerialEvent2 was defined, but also that if SerialEvent2 is defined but
SerialEvent3 is not, this could cause a reset (call to NULL pointer).
This closes #1967, thanks to Peter Olson for finding the bug and fix.
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Added support for buffer sizes bigger than 256 bytes.
Added possibility to overrule the default size.
Added support for different size of TX and RX buffer sizes.
The default values remain the same. You can however specify a different
value for TX and RX buffer
Added possibility to overrule the default size.
If you want to have different values
define SERIAL_TX_BUFFER_SIZE and SERIAL_RX_BUFFER_SIZE on the command
line
Added support for buffer sizes bigger than 256 bytes.
Because of the possibility to change the size of the buffer sizes longer
than 256 must be supported.
The type of the indexes is decided upon the size of the buffers. So
there is no increase in program/data size when the buffers are smaller
than 257
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Added support for different size of TX and RX buffer sizes.
Added support for buffer sizes bigger than 256 bytes.
Added support for different size of TX and RX buffer sizes.
The default values remain the same. If you want to have different values
define SERIAL_TX_BUFFER_SIZE and SERIAL_RX_BUFFER_SIZE on the command
line
Added support for buffer sizes bigger than 256 bytes.
The type of the indexes is decided upon the size of the buffers. So
there is no increase in program/data size when the buffers are smaller
than 257
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peekNextDigit() returns an int, so it can return -1 in addition to all
256 possible bytes. By putting the result in a signe char, all bytes
over 128 will be interpreted as "no bytes available". Furthermore, it
seems that on SAM "char" is unsigned by default, causing the
"if (c < 0)" line a bit further down to always be false.
Using an int is more appropriate.
A different fix for this issue was suggested in #1399. This fix helps
towards #1728.
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In C++, true and false are language keywords, so there is no need to
define them as macros. Including stdbool.h in C++ effectively changes
nothing. In C, true, false and also the bool type are not available, but
including stdbool.h will make them available.
Using stdbool.h means that we get true, false and the bool type in
whatever way the compiler thinks is best, which seems like a good idea
to me.
This also fixes the following compiler warnings if a .c file includes
both stdbool.h and Arduino.h:
warning: "true" redefined [enabled by default]
#define true 0x1
warning: "false" redefined [enabled by default]
#define false 0x0
This fixes #1570 and helps toward fixing #1728.
This only changed the AVR core, the SAM core already doesn't define true
and false (but doesn't include stdbool.h either).
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Previously, pointer casting was used, but this resulted in strict-aliasing warnings:
IPAddress.h: In member function ‘IPAddress::operator uint32_t() const’:
IPAddress.h:46:61: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
operator uint32_t() const { return *((uint32_t*)_address); };
^
IPAddress.h: In member function ‘bool IPAddress::operator==(const IPAddress&) const’:
IPAddress.h:47:81: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
bool operator==(const IPAddress& addr) const { return (*((uint32_t*)_address)) == (*((uint32_t*)addr._address)); };
^
IPAddress.h:47:114: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
bool operator==(const IPAddress& addr) const { return (*((uint32_t*)_address)) == (*((uint32_t*)addr._address)); };
Converting between unrelated types like this is commonly done using a union,
which do not break the strict-aliasing rules. Using that union, inside
IPAddress there is now an attribute _address.bytes for the raw byte
arra, or _address.dword for the uint32_t version.
Since we now have easy access to the uint32_t version, this also removes
two memcpy invocations that can just become assignments.
This patch does not change the generated code in any way, the compiler
already optimized away the memcpy calls and the previous casts mean
exactly the same.
This is a different implementation of a part of #1399 and it helps
toward fixing #1728.
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