suspect-devices/circuitpython/ports/mimxrt10xx/common-hal/busio, branch main CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=main 2021-03-31T14:21:08+00:00 mimxrt10xx: Fix bogus assertion. 2021-03-31T14:21:08+00:00 Jeff Epler jepler@gmail.com 2021-03-31T14:21:06+00:00 urn:sha1:cb29ad0846c8da2d25c157a4b1d3cf9affd89e44 .. as noted by @d-c-d mimxrt1011: UART: Add additional error checking 2021-03-30T15:17:48+00:00 Jeff Epler jepler@gmail.com 2021-03-30T15:11:12+00:00 urn:sha1:71eee45a3779559686c5d07d9864aad679121ab6 .. and make the 'invalid pin' messages standard. Closes #4502 Parenthesize double-division for clarity 2021-03-26T16:01:22+00:00 Jeff Epler jepler@unpythonic.net 2021-03-26T16:01:22+00:00 urn:sha1:2bc61b458070f9e1e5a49442a72c43c0d9ea721f mimxrt10xx: Use the proper "betweenTransferDelay" (et al) values 2021-03-26T15:54:13+00:00 Jeff Epler jepler@unpythonic.net 2021-03-26T15:54:13+00:00 urn:sha1:231cb1ffd954dad45223bcc6fd22f344089536f1 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) mimxrt10xx: Factor out "transfer_common" 2021-03-26T15:04:35+00:00 Jeff Epler jepler@unpythonic.net 2021-03-25T14:03:42+00:00 urn:sha1:1d48054aeaa2762a752462a058a27afb1daac860 .. and set the "MasterPcsContinuous" flag, which removes some of the gap between bytes of a single SPI transaction mimxrt10xx: busio: cap SPI baudrate at 30MHz per datasheet 2021-03-26T15:01:53+00:00 Jeff Epler jepler@unpythonic.net 2021-03-25T18:37:37+00:00 urn:sha1:9e110f120a323eff9989463771d8ea8ece6e8906 mimxrt: SPI: Set the TCR value returned by MasterBaudSetRate 2021-03-24T18:33:21+00:00 Jeff Epler jepler@unpythonic.net 2021-03-24T18:07:07+00:00 urn:sha1:b440883fe55666d12f94a6d48513a1a68d218bc4 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. run code formatting script 2021-03-15T13:57:36+00:00 microDev 70126934+microDev1@users.noreply.github.com 2021-03-15T13:57:36+00:00 urn:sha1:a52eb88031620a81521b937f2a0651dbac2bb350 implement suggested changes 2021-02-24T19:18:36+00:00 microDev 70126934+microDev1@users.noreply.github.com 2021-02-24T19:18:36+00:00 urn:sha1:5d7fdafcdec126f4f552689df25cecf30b39265d - add internal buffering - rtc initialization fix adds: maximum retries on SPI busy 2021-02-07T16:06:46+00:00 Philip Jander info@jander.it 2021-02-07T16:06:46+00:00 urn:sha1:5bf08c503ba50fc24652c1d8720aee8c6e7de627