* I2S driver fixes for IRQs, protocol, factoring
All redundant ICACHE_FLASH_ATTR decorators were removed, we already do
this by default for all routines, anyway,
The actual ISR and its called function moved to to IRAM. Used to be in flash
due to the decorator, which could lead to crashes. Use ets_memset to mute
buffers in ISR.
Fix the I2S on-the-wire protocol by enabling the transmit delay I2STMS because
I2S is supposed to send the MSB one clock after LRCLK toggles. This was
causing I2S to be twice as loud as intended in the best of cases, and causing
garbage/noise output when the MSB was set since data was effectively shifted.
Refactor the clock divider setting to be done in one function only, as there
is no reason to do the same complicated bit setting in two spots.
* Comment some add'l registers, use optimstic_yield
Comment the known and unknown I2S register settings for posterity, using
the ESP32 guide as a basis.
Use optimistic_yield() instead of esp_wdt_disable/enable when busy
waiting in blocking writes to ensure we don't hog the CPU completely.
Move the constant IO pins to #defines for easier understanding.
With this patch the set up clock rate survives a re-init that is done by many libraries several times.
This makes e.g. an accelerated OLED display possible with the adafruit libraries
* inefficient Print::write(data,len) shows message if used (only in debug mode)
* make HardwareSerial's write(data,len) efficient
* HardwareSerial: remove duplicate tests, move trivial code from .cpp to .h
Move all exception strings to IRAM and out of both PMEM (illegal) and add
output of any assert() failinf conditions.
The exception handler may be called while the SPI interface is in a bad
state. This means no PROGMEM reads are allowed, and all data and functions
used must be in system RAM or IRAM.
Add a new helper macro, ets_printf_P(), which places a constant string in
IRAM and copies it to the stack before calling the real ets_printf().
This makes the code simpler to read as no unwieldy combinations of
ets_putc/ets_printf/... are required to output anything.
The old handler also mistakenly used PSTR() strings in some places, so
fix those with this patch as well.
Gives back ~180 bytes of heap to every sketch built as the exception handler
is always included an application.
At runtime, whenever a realloc, malloc, calloc, or new call fails to
find enough memory, record the calling function and size requested.
Does not print anything or call any heavyweight functions on this, as it
is legal to return NULL to an alloc-type call.
If the main application handles this NULL properly, there should be no
panic and nothing different will happen.
If the main application panics() at any later point in time, this record
will be printed out as part of the crash log for processing with an
updated EspExceptionDecoder.java.
This adds 2-3 instructions overhead in the normal case, and around 10-12
instructions in the failing case, and requires an additional 8 bytes of
.BSS to function.
Only a single address is kept, the final failing malloc-type function call
before a panic, but it is trivial to extend to a fifo with little overhead
in the common, non-failing case.
The default Print::write(byte, count) method was continuing to send
bytes one-by-one even when a prior write returned 0. Because the buffer
pointer was incremented no matter success or fail, this leads to data
corruption as you'll not send some bytes in the middle and will then
send extra bytes past the end of the passed in buffer.
Because there's no concept of timeout, just stop on the first time
write(byte) fails and return the total bytes successfully written
and let the user worry about retrying or handling an error.
Found by @d-a-v and discussed on gitter.
Provides a simple interface to attach/detach pins to the sigma-delta generator, and get/set the 2 parameters prescaler & target. Working example that fades the onboard LED is provided. Code and sample by @stefaandesmet2003.
- Move GDB stub hooks into a separate file, provide header for it
- Use syscall instruction raise user mode exception
- Remove unused code in postmortem.c
fixup
fixup
* Flush the rx fifo when checking available bytes in fifo. This gives a more correct result rather than waiting until either the fifo is full or until a serial rx timeout occurs.
* When rx_avaiable is checked return rx_buffer plus rx_fifo. Then during rx_read and rx_peek functions copy over the data in the fifo as needed.
* Clean up early out case.
* Set the rx full fifo ISR to trigger a little sooner. This makes the uart rx isr more robust in cases where the ISR can't trigger very fast
* provide full version descriptor, displayed in debug mode
* unix: shows core version like under windows when git is unavailable
* store strings in progmem
* version string honours NDEBUG
* add ARDUINO_ESP8266_GIT_DESC
restore ARDUINO_ESP8266_GIT_VER
restore global variable "core_version"
don't print full version on setDebugOutput(true)
set platform.txt version to 2.4.1-pre
hide irrelevant boot version
fix typo
* lwip2: fix disconnection/reconnection issue
also:
improve version string
remove useless message
* lwip2: bump tag before 2.4.1
* lwip2: improve netif flags management on git side
* full-version string: remove useless NDEBUG in separate source file
* do not automatically enable sdk messages along with core messages
* automatically reenable sdk messages along with core messages *before* setup not after
* check serial port when showing version-string + move sdk messages enabler in hardware serial
* + license header
* updated and tested windows commands in platform.txt (without git)
* updated and tested windows commands in platform.txt (without git)
* update package builder accordingly
Calloc was calling memset(0) on NULL when its implicit malloc failed,
causing a crash in UMM. Instead, only do the memset if the memory
allocation succeeds.
Fixes issue #4207
* Added _setError function in the header file
_setError function wraps a few lines to eliminate repetitiveness when debugging for errors.
* Added _setError function
_setError function wraps a few lines to eliminate repetitiveness when debugging for errors.
+ generates boards.rst
+ generate and replace boards section in package.json
+ generate ldscripts
+ new debug option: OOM
+ new led menu for generic board
* Added constant time strings comparison to avoid possible time-based attacks
* Fixed data types
* Fixed indentation
* Moved string comnparison in constant time to String class; modified function body to assure constant time comparison despite compiler optimizations
* Removed wrong code
* Fixed error and prevented compiler optimization to delete u1 local variable
* Avoid timing attacks on string comparison
* Minor
* changed counter names, removed else
* Add a workaround-delay in Serial.flush()
In relation to #2536 and #2502
Tested at 80MHz and 160MHz with flash-frequency at both 40MHz and 80MHz, the bug mentioned in the above issues manifests in all cases. The proposed workaround seems to work fine, I tested at 2400bps, 9600bps, 115200bps, 230400bps and 2Mbps and didn't see anomalous output.
* Remove extraneous character
* Update HardwareSerial.cpp
SDK uses final 4 sectors of flash for configuration data.
ESP.eraseConfig would only erase 2 sectors, so in some cases of
corrupted data ("system param error"), users could not fix the issue
using ESP.eraseConfig, and had to use esptool instead.
Thanks @HugoML for reporting this.
