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Tim Radvan f842a40df4 rp2/rp2_pio: Add fifo_join support for PIO. 
The PIO state machines on the RP2040 have 4 word deep TX and RX FIFOs.  If
you only need one direction, you can "merge" them into either a single 8
word deep TX or RX FIFO.

We simply add constants to the PIO object, and set the appropriate bits in
`shiftctrl`.

Resolves #6854.

Signed-off-by: Tim Radvan <tim@tjvr.org>
 		2021-04-17 00:45:38 +10:00
..
bare-arm bare-arm: Clean up the code, make it run on an F405, and add a README. 2021-03-19 14:20:26 +11:00
cc3200 tests: Rename run-tests to run-tests.py for consistency. 2021-03-12 19:56:09 +11:00
esp32 esp32/machine_pin: Use rtc_gpio_deinit instead of gpio_reset_pin. 2021-04-15 13:06:05 +10:00
esp8266 esp8266/modules: Fix fs_corrupted() to use start_sec not START_SEC. 2021-02-09 10:46:07 +11:00
javascript tests: Rename run-tests to run-tests.py for consistency. 2021-03-12 19:56:09 +11:00
mimxrt mimxrt: Enable CPYTHON_COMPAT, PY_ASYNC_AWAIT, PY_ATTRTUPLE options. 2021-04-14 12:55:53 +10:00
minimal ports: Disable MICROPY_PY_ASSIGN_EXPR in bare-arm and minimal ports. 2020-06-16 22:06:21 +10:00
nrf nrf/drivers/usb: Add USBD_IRQHandler which calls tud_int_handler. 2021-02-13 13:52:53 +11:00
pic16bit ports: Remove def of MP_PLAT_PRINT_STRN if it's the same as the default. 2021-02-04 22:39:17 +11:00
powerpc ports: Remove def of MP_PLAT_PRINT_STRN if it's the same as the default. 2021-02-04 22:39:17 +11:00
qemu-arm tests: Rename run-tests to run-tests.py for consistency. 2021-03-12 19:56:09 +11:00
rp2 rp2/rp2_pio: Add fifo_join support for PIO. 2021-04-17 00:45:38 +10:00
samd samd/mphalport: Fix USB CDC tx handling to work reliably. 2021-02-12 14:09:01 +11:00
stm32 stm32/sdram: Make MICROPY_HW_FMC_BA1,MICROPY_HW_FMC_A11 optional pins. 2021-04-14 11:06:32 +10:00
teensy ports: Remove def of MP_PLAT_PRINT_STRN if it's the same as the default. 2021-02-04 22:39:17 +11:00
unix unix/main: Make static variable that's potentially clobbered by longjmp. 2021-04-14 10:45:26 +10:00
windows tests: Rename run-tests to run-tests.py for consistency. 2021-03-12 19:56:09 +11:00
zephyr py/py.cmake: Introduce MICROPY_INC_CORE as a list with core includes. 2021-04-09 13:08:35 +10:00