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Fixes #1065

See #1161

The PicoProbe firmware has only supported  CMSIS-DAP for some time, make it the default debugging option to work around IDE 2.0 issues.

Fixes #1552

Ensure that 64 bit multiplication is done when calculating the total size
available and used for SDFS.

This should reduce the `git submodule update` space required as well as
avoid the max-path-len errors under Windows in most cases.

Serve next wificlient (http_request) if current client does not have data

* Enable proper reuse of PIO programs

Rewrite the PIOProgram helper class to properly re-use loaded programs
and to try to re-use loaded instructions before allocating a new PIO
program.

Supersedes #1524

* Less copy-pasta

Handle the case where the DMA manager is unable to completely allocate
needed resources (DMA channels or memory) and return `false` in ::begin()

Per https://github.com/earlephilhower/arduino-pico/pull/1524#issuecomment-1587885054

Per https://github.com/earlephilhower/arduino-pico/pull/1524#issuecomment-1587562257

Fixes #1509

The ABM had an off-by-one error in the DMA buffer swapover.  Instead of
setting the DMA address to the newly added buffer in active[], it set it
to the buffer that was currently running.

This would effectively disable the ping-pong and cause clicks/lost data.

Fixes #1491

Per the Arduino documentation, I2s::available should return bytes free,
not samples.  Adjust accordingly.

See #1491.  Thanks @LinusHeu

Return the actual number of samples that can be read/written, not the
number of 32-bit values there is space for.

The serial port reset logic was calling `sleep_ms()` which ended up doing
a task switch...while the other core was frozen and everything was supposed
to be locked.

Use `busy_wait_ms()` which is a tight loop to delay in the reset portion.

Fixes #1486

Since FreeRTOS has real tasks and mutexes with support for priority bumping, actually always try and take a `CoreMutex` instead of seeing if someone else already has it and aborting immediately.

This fix helps ensure things like Serial output in a multi-task system won't get lost.

Co-authored-by: Dominic Pearman <dominic@phymorous.de>

See RPI's CEO comment https://github.com/platformio/platform-raspberrypi/pull/36#issuecomment-1560504425

* Implement the BD_ADDR(char * address_string) constructor.

* Updating implementation to use sscanf.

There is an extra step after the sscanf that checks that we got
six bytes back and if we did not, it will set all bytes in the
address to zero.

* Example using BD_ADDR(const char * address_string)

This example shows how BD_ADDR(const char * address_string) can
be used to create BD_ADDR objects to use for comparisons etc.

* Update LEDeviceScanner.ino formatting

Warn the user that the Pico SDK STDIO calls (stdio_init_all, stdio_usb_init,
stdio_uart_init) are not supported or needed at compile time.  See multiple
issues #1433 #1347 #1273 #1251 and others.