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).
Previously, preferences suffixed with .macos were treated specially,
but the default preferences.txt used .macosx.
I couldn't find when or how this was broken exactly - it seems
Processing used .macosx but this code was reimplemented for Arduino in
commit 33f5c53 (Implemented OS specific preferences) using .macos.
The effects of this have not been tested on OSX, but this might fix some
problems caused by wrong defaults on OSX.
In preferences files, platform-specific versions can be indicated by a
.linux, .windows or .macos suffix on the key name. Previously, these
keys were loaded as normal and then afterwards, all keys were scanned
after loading them and any platform-specific versions replaced the
regular ones.
However, this means that these platform-specific versions get an
unexpected form of priority. Normally, when a single key is set twice,
the latter overrides the first. However, the platform-specific values
could override the regular versions, even when the regular version
occurs later in the file.
This problem was particularly confusing when using the new
platform.local.txt: a regular preference in platform.local.txt did not
override a platform-specific preference in platform.txt.
This commit changes behaviour to process these suffixes directly as they
are read from the preference files. If a suffix for the current platform
is found, the line is processed as if the suffix was not present. If a
suffix for another platform is found, the line is ignored altogether.
This can slightly change the way preferences files are parsed, but as
long as platform-specific preferences are defined after the
corresponding regular preferences, the behaviour should be the same.
Previously, this relied on an (ugly, avr-specific) magic default for the
compiler.path variable, set by the IDE. This allowed the IDE to fall
back to a system-wide toolchain when no bundled toolchain was found (by
making compiler.path empty).
However,
- this only worked for avr, not sam,
- this worked only for gcc, a system-wide avrdude would break on the
avrdude.conf path in platform.txt, and
This would mean that automatic system-wide fallback didn't work in all
situations, so you'd still have to modify platform.txt (or create
platform.local.txt). Since doing that explictly is the most reliable
way, this commit removes the partial-working ability to do this
automatically.
Note that the code to automatically set compiler.path is still kept
around, in case third-party hardware still relies on this. At some
point, this code should be removed, but for now it just shows a warning
message.
Adds ability to set length, parity and stop bit configuration to
hardware serial ports using USART module (Serial1, Serial2, and Serial
3) on Due to allow compatibility with avr devices.
This helps advanced users that want to change options (e.g. to use a
different toolchain or enable warnings), without having to change
platform.txt (which could make git report changed files all the time).
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.
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
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
