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
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
microDev
dc332baa87
update common_hal_reset_pin()
2020-12-28 20:04:00 +05:30
Scott Shawcroft
c5fa9730a8
Compiles!
2020-06-24 12:47:59 -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
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
Lucian Copeland
66c09efae2
Add UART one-way instance search, fix bugs in stm32 implementation
2020-05-20 12:48:01 -04:00
arturo182
f92d53eaab
mimxrt1010: Increase max SPI speed
2020-05-18 22:07:38 +02:00
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
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
Dave Marples
aadb0bfc1e
Fix SPI clock speed on mimxrt10xx family & mimxrt1020 pinmux fixup
2020-02-26 14:28:54 +00:00
arturo182
13e0cba6f1
Add initial MIMXRT10XX port
2020-01-06 21:08:49 +01:00
