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42 Commits

Author SHA1 Message Date
Jeff Epler
71eee45a37 mimxrt1011: UART: Add additional error checking 
.. and make the 'invalid pin' messages standard.

Closes #4502
 2021-03-30 10:17:48 -05:00
Jeff Epler
2bc61b4580 Parenthesize double-division for clarity 2021-03-26 11:01:22 -05:00
Jeff Epler
231cb1ffd9 mimxrt10xx: Use the proper "betweenTransferDelay" (et al) values 
Set the betweenTransferDelay to the SCK low-time, to avoid long pauses
between bytes (transfers) while preventing the last SCK cycle in a byte
from being a runt pulse.

Compared to an earlier revision of this change, which just set the delays
all to zero, this doesn't break using an AirLift, which was sensitive
to the runt pulses (the simple loopback-wire test didn't detect the problem)
 2021-03-26 10:54:13 -05:00
Jeff Epler
1d48054aea mimxrt10xx: Factor out "transfer_common" 
.. and set the "MasterPcsContinuous" flag, which removes some of the
gap between bytes of a single SPI transaction
 2021-03-26 10:04:35 -05:00
Jeff Epler
9e110f120a mimxrt10xx: busio: cap SPI baudrate at 30MHz per datasheet 2021-03-26 10:01:53 -05:00
Jeff Epler
b440883fe5 mimxrt: SPI: Set the TCR value returned by MasterBaudSetRate 
without this, the baud rate could be wrong; in my testing, it was
low by a factor of 2 when requesating baudrate=1_000_000 (1MHz).

When passing the baudrate in to LPSPI_MasterInit, the setting is made
automatically, but LPSPI_MAster_SetBaudRate just returns it via the
out-parameter tcrPrescaleValue.
 2021-03-24 13:33:21 -05:00
microDev
a52eb88031
run code formatting script 2021-03-15 19:27:36 +05:30
microDev
5d7fdafcde
implement suggested changes 
- add internal buffering
- rtc initialization fix
 2021-02-25 00:48:36 +05:30
Philip Jander
5bf08c503b adds: maximum retries on SPI busy 2021-02-07 17:06:46 +01:00
Philip Jander
ae91b12aea chore: whitespace fixed 2021-02-07 16:59:11 +01:00
Philip Jander
127cc6204a adds: idle loop to wait for SPI not busy (mimxrt10xx) 2021-02-07 16:59:11 +01:00
BiffoBear
2656c84b01 Initial commit. Edited error messages in .c files 2021-02-03 05:49:40 +07:00
microDev
dc332baa87
update common_hal_reset_pin() 2020-12-28 20:04:00 +05:30
Diego Elio Pettenò
34b4993d63 Add license to some obvious files. 2020-07-06 19:16:25 +01:00
Scott Shawcroft
c5fa9730a8
Compiles! 2020-06-24 12:47:59 -07:00
Scott Shawcroft
a26102607e
Add UART support 2020-06-24 12:47:58 -07:00
Diego Elio Pettenò
dd5d7c86d2 Fix up end of file and trailing whitespace. 
This can be enforced by pre-commit, but correct it separately to make it easier to review.
 2020-06-03 10:56:35 +01:00
Lucian Copeland
a59798ed49 Merge branch 'mimxrt-uart-oneway' into mimxrt-busio-cleanup 2020-05-27 12:31:16 -04:00
Lucian Copeland
9f5520135c translations 2020-05-27 11:54:52 -04:00
Lucian Copeland
1e914ac2b0 Change exception text and type 2020-05-27 11:48:52 -04:00
Lucian Copeland
53fb699436 Add pin resetting across boards, fix array size detection issue 2020-05-27 11:45:15 -04:00
arturo182
d6c59c4de0 mimxrt10xx: Change exception type to match other ports 2020-05-26 22:36:30 +02:00
Lucian Copeland
75b5142954 Minor style changes and translations 2020-05-22 11:31:52 -04:00
Lucian Copeland
66c09efae2 Add UART one-way instance search, fix bugs in stm32 implementation 2020-05-20 12:48:01 -04:00
Scott Shawcroft
2c2b53303d
Merge pull request #2837 from k0d/serial-debug 
Add support for a debug console, such as ST-Link VCP.
 2020-05-18 18:13:31 -07:00
Mark Olsson
007c92ee6a Enable showing the console on a debug uart 2020-05-19 02:02:52 +02:00
arturo182
f92d53eaab mimxrt1010: Increase max SPI speed 2020-05-18 22:07:38 +02:00
Scott Shawcroft
4519ddebeb
Merge pull request #2841 from hierophect/mimxrt-spi-oneway 
mimxrt10xx: add one-directional SPI
 2020-05-06 08:32:21 -07:00
Lucian Copeland
a1330747e8 text fixes, postpone warning disable 2020-05-05 12:46:30 -04:00
Lucian Copeland
bc581fbdfb Add-unidirectional-SPI 2020-05-01 13:15:38 -04:00
Dan Halbert
fbc8719fad ringbuf tested 2020-04-21 22:40:12 -04:00
Dan Halbert
38ec3bc574 further ringbuf cleanup 2020-04-21 17:38:20 -04:00
arturo182
08f369ea96 mimxrt1011: Only re-init SPI when it's actually needed 
If some crazy code (*cough* FourWire) decides to reconfigure the bus
before every transfer, it might get a bit slow...
 2020-04-06 22:10:12 +02:00
arturo182
18c12e7822 mimxrt10xx: Return proper UART read length when everything was read 2020-03-26 00:15:48 +01:00
Dan Halbert
b6206406de new pin validation routines; don't use mp_const_none if NULL will do 2020-02-28 23:43:04 -05:00
Dave Marples
09a3153bf4 Fix I2C clock divider 2020-02-27 14:08:39 +00:00
Dave Marples
aadb0bfc1e Fix SPI clock speed on mimxrt10xx family & mimxrt1020 pinmux fixup 2020-02-26 14:28:54 +00:00
Dave Marples
24405cabaf Edits as a result of review 2020-02-19 00:07:01 +00:00
Dave Marples
d388899985 Addition of RS485 support 2020-02-18 23:16:40 +00:00
Dave Marples
84ad3d8393 Addition of RTS/CTS/RS485 UART functionality 2020-02-18 23:16:40 +00:00
Dan Halbert
360c876be4 add flag to i.mx port 2020-01-10 09:20:21 -05:00
arturo182
13e0cba6f1 Add initial MIMXRT10XX port 2020-01-06 21:08:49 +01:00