8a31ae14a0
machine: use larger SPI MAXCNT on nrf52833 and nrf52840
...
These chips have a larger upper limit for the DMA transfer than the
nrf52832. For best performance, we should be splitting the transfer in
as large blocks as possible on the given hardware.
2025-10-21 13:33:13 +02:00
2bee29959b
refactor: use *SPI everywhere to make consistant for implementations.
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Fixes #4663 "in reverse" by making SPI a pointer everywhere, as discussed
in the comments.
Signed-off-by: deadprogram <ron@hybridgroup.com >
2025-03-11 06:06:31 -07:00
b7fcf6ad68
nrf: fix adc read near zero
2025-01-23 13:03:25 +08:00
7417c14c2d
nrf: make ADC resolution changeable ( #4701 )
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Signed-off-by: Paul Schroeder <milkpirate@users.noreply.github.com >
2025-01-20 21:51:05 +01:00
39029cc376
Run Nick G's spellchecker github.com/client9/misspell, carefuly fix what it found ( #4235 )
2024-04-19 06:57:01 -07:00
fa4ca63ff2
machine/spi: use interface to ensure uniformity for all machine implementations
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Signed-off-by: deadprogram <ron@hybridgroup.com >
2023-10-17 13:41:32 +02:00
806498f099
nRF52: set SPI TX/RX lengths even data is empty. Fixes #3868 ( #3877 )
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machine/hrf: Set SPI TX/RX lengths even data is empty. Fixes #3868
2023-08-24 13:15:18 +02:00
f4c8c37b7b
nrf: add ADC oversampling support
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This is a lot easier to support than on other chips, and results in
noticeably better output when set to a higher value.
2023-05-09 19:51:05 +02:00
868812717f
nrf: add sample time to ADC
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This is important for inputs with a high input resistance. In those
cases, the sample time needs to be longer.
2023-05-09 19:51:05 +02:00
e82f595f37
nrf: add ability to set the reference voltage
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The reference voltage can't be 3.3V, so we pick 3.0V as this was the
previous default.
2023-05-09 19:51:05 +02:00
e5af121553
nrf: refactor ADC code a little bit
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* Initialize the ADC in Configure() (instead of in Get()).
* Do not set all channels to "not connected" - that's already the
reset value.
* Don't disable the ADC after use. It's not necessary to disable
(current consumption appears to remain the same whether enabled or
disabled).
2023-05-09 19:51:05 +02:00
feadb9c85c
nrf: move nrf52 family code to correct file name
2023-04-04 09:36:42 +02:00
Ayke van Laethem
deadprogram
Yurii Soldak
milkpirate
dkegel-fastly
Pertti Erkkilä
Kenneth Bell