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Damien George 97af1001ae rp2/machine_uart: Make it so TX is done only when no longer busy. 
Prior to this commit, when flushing a UART on the rp2 port, it returns just
before the last character is sent out the wire.

Fix this by waiting until the BUSY flag is cleared.

This also fixes the behaviour of `UART.txdone()` to return `True` only when
the last byte has gone out.

Updated docs and tests to match.  The test now checks that UART TX time is
very close to the expected time (prior, it was just testing that the TX
time was less than the expected time).

Signed-off-by: Damien George <damien@micropython.org>
2024-10-22 10:17:05 +11:00
..
_thread.rst docs/_thread: Add a placeholder docs for _thread module. 2017-11-10 00:09:43 +02:00
array.rst all: Fix spelling mistakes based on codespell check. 2023-04-27 18:03:06 +10:00
asyncio.rst docs/library/asyncio: Document that ThreadSafeFlag now works on unix. 2024-05-15 14:13:30 +10:00
binascii.rst extmod/modubinascii: Add newline keyword to b2a_base64 function. 2022-01-23 10:18:01 +11:00
bluetooth.rst docs/library/bluetooth: Add note that ESP32 supports pairing/bonding. 2024-02-29 14:33:22 +11:00
btree.rst extmod/modbtree: Use buffer protocol for keys/values. 2022-06-21 00:44:49 +10:00
builtins.rst py/objint: Fix int.to_bytes() buffer size checks. 2024-06-24 14:07:00 +10:00
cmath.rst docs/library: Add CPython docs xref to each pertinent module. 2017-07-02 15:37:31 +03:00
collections.rst docs/library/collections: Update deque docs to describe new features. 2024-03-19 10:09:11 +11:00
cryptolib.rst docs: Replace ufoo with foo in all docs. 2021-08-13 22:53:29 +10:00
deflate.rst extmod/moddeflate: Change default window size. 2023-09-01 12:23:37 +10:00
errno.rst docs: Replace ufoo with foo in all docs. 2021-08-13 22:53:29 +10:00
esp32.rst docs/library: Move vfs functions and classes from os to vfs module docs. 2024-02-07 13:25:09 +11:00
esp.rst docs/library/esp: Correct the description of esp.osdebug(). 2023-11-22 16:48:35 +11:00
espnow.rst all: Fix various spelling mistakes found by codespell 2.2.6. 2023-10-03 11:24:50 +11:00
framebuf.rst docs/library/framebuf: Clarify docs for blit regarding palette. 2022-11-17 23:18:22 +11:00
gc.rst docs/library/gc: Clarify mem_alloc and mem_free only for Python heap. 2023-09-15 12:19:13 +10:00
gzip.rst docs/library/deflate: Add docs for deflate.DeflateIO. 2023-07-21 19:32:42 +10:00
hashlib.rst docs: Replace ufoo with foo in all docs. 2021-08-13 22:53:29 +10:00
heapq.rst docs: Remove trailing spaces and convert tabs to spaces. 2021-12-15 11:49:22 +11:00
index.rst docs/library/openamp: Document the new openamp module. 2024-03-15 18:11:28 +11:00
io.rst docs/library/io: Remove io.FileIO and io.TextIOWrapper. 2023-10-16 23:07:13 +11:00
json.rst docs: Replace ufoo with foo in all docs. 2021-08-13 22:53:29 +10:00
lcd160cr.rst docs: Remove trailing spaces and convert tabs to spaces. 2021-12-15 11:49:22 +11:00
machine.ADC.rst all: Fix spelling mistakes based on codespell check. 2023-04-27 18:03:06 +10:00
machine.ADCBlock.rst all: Prune trailing whitespace. 2024-03-07 16:25:17 +11:00
machine.ADCWiPy.rst docs: Remove trailing spaces and convert tabs to spaces. 2021-12-15 11:49:22 +11:00
machine.I2C.rst all: Fix spelling mistakes based on codespell check. 2023-04-27 18:03:06 +10:00
machine.I2S.rst docs: Rename uasyncio to asyncio. 2023-06-19 18:36:54 +10:00
machine.Pin.rst docs/library: Document machine.Pin.toggle() method. 2024-09-19 12:04:39 +10:00
machine.PWM.rst all: Prune trailing whitespace. 2024-03-07 16:25:17 +11:00
machine.rst docs: Specify that machine.idle() returns at least every 1ms. 2024-07-23 16:42:42 +10:00
machine.RTC.rst docs/library/machine.RTC: Add docs for RTC.memory() method. 2024-03-26 17:59:06 +11:00
machine.SD.rst docs: Use vfs module instead of os. 2024-02-07 13:25:10 +11:00
machine.SDCard.rst docs: Use vfs module instead of os. 2024-02-07 13:25:10 +11:00
machine.Signal.rst docs/library/machine.Signal.rst: Correct typo: usecases to use cases. 2020-10-20 17:21:30 +11:00
machine.SPI.rst all: Fix spelling mistakes based on codespell check. 2023-04-27 18:03:06 +10:00
machine.Timer.rst all: Fix spelling mistakes based on codespell check. 2023-04-27 18:03:06 +10:00
machine.TimerWiPy.rst docs: Remove trailing spaces and convert tabs to spaces. 2021-12-15 11:49:22 +11:00
machine.UART.rst rp2/machine_uart: Make it so TX is done only when no longer busy. 2024-10-22 10:17:05 +11:00
machine.USBDevice.rst extmod/machine_usb_device: Add USBDevice.remote_wakeup method. 2024-07-02 10:23:26 +10:00
machine.WDT.rst docs/esp32: Update esp32 docs based on IDF v5 changes. 2023-06-23 15:34:49 +10:00
math.rst docs/library: Document math.log with two arguments. 2024-09-17 11:22:26 +10:00
micropython.rst py/objringio: Add micropython.RingIO() interface for general use. 2024-09-19 18:00:44 +10:00
neopixel.rst docs/library/neopixel: Mention bitstream timing tuple. 2024-08-01 12:04:58 +10:00
network.LAN.rst docs: Update docs to replace ifconfig with ipconfig. 2024-07-05 16:06:04 +10:00
network.PPP.rst docs/library: Document the network.PPP class. 2024-08-29 23:47:55 +10:00
network.rst docs/library: Document the network.PPP class. 2024-08-29 23:47:55 +10:00
network.WIZNET5K.rst docs: Update docs to replace ifconfig with ipconfig. 2024-07-05 16:06:04 +10:00
network.WLAN.rst docs: Update docs to replace ifconfig with ipconfig. 2024-07-05 16:06:04 +10:00
network.WLANWiPy.rst docs: Update docs to replace ifconfig with ipconfig. 2024-07-05 16:06:04 +10:00
openamp.rst docs/library/openamp: Document the new openamp module. 2024-03-15 18:11:28 +11:00
os.rst docs/library: Move vfs functions and classes from os to vfs module docs. 2024-02-07 13:25:09 +11:00
platform.rst docs/library/platform: Add docs for the platform library. 2023-09-04 22:40:56 +10:00
pyb.Accel.rst docs/library: Remove unnecessary "pyb." prefix on class names. 2022-06-21 14:33:23 +10:00
pyb.ADC.rst docs/library: Remove unnecessary "pyb." prefix on class names. 2022-06-21 14:33:23 +10:00
pyb.CAN.rst all: Fix spelling mistakes based on codespell check. 2023-04-27 18:03:06 +10:00
pyb.DAC.rst docs/library: Remove unnecessary "pyb." prefix on class names. 2022-06-21 14:33:23 +10:00
pyb.ExtInt.rst docs/library: Remove unnecessary "pyb." prefix on class names. 2022-06-21 14:33:23 +10:00
pyb.Flash.rst docs/library: Move vfs functions and classes from os to vfs module docs. 2024-02-07 13:25:09 +11:00
pyb.I2C.rst all: Fix spelling mistakes based on codespell check. 2023-04-27 18:03:06 +10:00
pyb.LCD.rst docs/library: Remove unnecessary "pyb." prefix on class names. 2022-06-21 14:33:23 +10:00
pyb.LED.rst docs/library: Remove unnecessary "pyb." prefix on class names. 2022-06-21 14:33:23 +10:00
pyb.Pin.rst docs/library/pyb.Pin: Add Pin.ALT constant. 2022-07-29 12:16:32 +10:00
pyb.rst docs: Use vfs module instead of os. 2024-02-07 13:25:10 +11:00
pyb.RTC.rst docs/library: Remove unnecessary "pyb." prefix on class names. 2022-06-21 14:33:23 +10:00
pyb.Servo.rst docs/library: Remove unnecessary "pyb." prefix on class names. 2022-06-21 14:33:23 +10:00
pyb.SPI.rst docs/library: Remove unnecessary "pyb." prefix on class names. 2022-06-21 14:33:23 +10:00
pyb.Switch.rst docs/library: Remove unnecessary "pyb." prefix on class names. 2022-06-21 14:33:23 +10:00
pyb.Timer.rst docs/library/pyb.Timer: Document how to use BKIN pin with example. 2022-07-29 12:22:23 +10:00
pyb.UART.rst docs/library: Remove unnecessary "pyb." prefix on class names. 2022-06-21 14:33:23 +10:00
pyb.USB_HID.rst docs/library: Remove unnecessary "pyb." prefix on class names. 2022-06-21 14:33:23 +10:00
pyb.USB_VCP.rst docs/library: Remove unnecessary "pyb." prefix on class names. 2022-06-21 14:33:23 +10:00
random.rst all: Rename UMODULE to MODULE in preprocessor/Makefile vars. 2023-06-08 17:54:11 +10:00
re.rst docs: Replace ufoo with foo in all docs. 2021-08-13 22:53:29 +10:00
rp2.DMA.rst docs/library/rp2.DMA: Add documentation for rp2 DMA support. 2024-03-19 17:10:54 +11:00
rp2.Flash.rst docs/library: Move vfs functions and classes from os to vfs module docs. 2024-02-07 13:25:09 +11:00
rp2.PIO.rst rp2/rp2_pio: Add support for RP2350A/B variants in PIO interface. 2024-10-15 12:09:48 +11:00
rp2.rst docs/library/rp2.DMA: Add documentation for rp2 DMA support. 2024-03-19 17:10:54 +11:00
rp2.StateMachine.rst docs/library/rp2.DMA: Add documentation for rp2 DMA support. 2024-03-19 17:10:54 +11:00
select.rst docs: Replace ufoo with foo in all docs. 2021-08-13 22:53:29 +10:00
socket.rst docs/library/socket: Use correct sockaddr variable name. 2023-01-13 17:40:01 +11:00
ssl.rst docs/library/ssl: Change wrap_socket args keyfile/certfile to key/cert. 2024-02-05 13:05:29 +11:00
stm.rst stm32/subghz: Add STM32WL55 subghz radio interface to stm module. 2023-08-23 11:58:11 +10:00
struct.rst py/binary: Support half-float 'e' format in struct pack/unpack. 2024-03-20 14:13:49 +11:00
sys.rst docs/library/sys.rst: Document implementation.version.releaselevel. 2024-02-07 15:51:25 +11:00
time.rst all: Fix spelling mistakes based on codespell check. 2023-04-27 18:03:06 +10:00
uctypes.rst docs: Replace ufoo with foo in all docs. 2021-08-13 22:53:29 +10:00
vfs.rst docs/library: Move vfs functions and classes from os to vfs module docs. 2024-02-07 13:25:09 +11:00
wipy.rst docs: Add usocket and ussl modules' documentation. 2015-10-21 15:30:56 +02:00
wm8960.rst all: Fix various spelling mistakes found by codespell 2.2.6. 2023-10-03 11:24:50 +11:00
zephyr.DiskAccess.rst docs/library: Move vfs functions and classes from os to vfs module docs. 2024-02-07 13:25:09 +11:00
zephyr.FlashArea.rst docs/library: Move vfs functions and classes from os to vfs module docs. 2024-02-07 13:25:09 +11:00
zephyr.rst all: Fix spelling mistakes based on codespell check. 2023-04-27 18:03:06 +10:00
zephyr.zsensor.rst docs/library/zephyr: Add libraries specific to the Zephyr port. 2021-08-13 20:21:14 +10:00
zlib.rst docs/library/deflate: Add docs for deflate.DeflateIO. 2023-07-21 19:32:42 +10:00