Jacob Rosenthal
32850bba79
nrf: saadc dummy pin for vdd sampling
2021-10-24 09:41:51 -07:00
huntc
3f31774674
Formatting
2021-10-18 12:29:31 +11:00
huntc
8dcc41c7f0
Optimises the buffer passing for nRF SAADC
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The buffer will always have been filled and we never explicitly stop the task outside of this code. Thus, we can assume the number of bytes in the slice.
2021-10-18 12:23:13 +11:00
huntc
a94d44a689
Comments corrected
2021-10-18 11:45:23 +11:00
huntc
6dc0ed53ff
Renamed sample rate to what it actually is
2021-10-18 11:42:30 +11:00
huntc
93407ed5e2
Remove unneeded stop
2021-10-18 11:31:06 +11:00
huntc
c7e426655d
Ensure the compiler doesn't reorder things before calling the sampler
2021-10-18 11:28:43 +11:00
huntc
785030df96
Use types to strengthen the buffer dimensioning
2021-10-18 10:26:11 +11:00
huntc
0c317a64f6
As suggested, use the const param to declare the internal sample for one channel only
2021-10-18 10:26:11 +11:00
huntc
cb56f52b99
Removed the Mode enum and factored out into two functions so that we can assert channel limits
2021-10-18 10:26:11 +11:00
huntc
a020b1a404
Combine intenset calls
2021-10-18 10:26:11 +11:00
huntc
b6cacb98db
Compact expression
2021-10-18 10:26:11 +11:00
huntc
e37a10ae99
Hangover - should have set this to internal for a previous PR
2021-10-18 10:26:11 +11:00
huntc
3be274dc2a
We must allow the run handler to mutate state
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The handler may well need to close over and mutate state
2021-10-18 10:26:11 +11:00
huntc
34e9e85819
We can kick start the internal timer outside of the main loop
2021-10-18 10:26:11 +11:00
huntc
16b6c78332
Removed debugging logs
2021-10-18 10:26:11 +11:00
huntc
103a3305e2
Implements continuous sampling for the nRF SAADC
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Implements continuous sampling for the nRF SAADC and also renames `OneShot` to `Saadc`. The one-shot behaviour is retained with the `sample` method and a new `run_sampler` method is provided for efficiently (i.e. zero copying) sampler processing. A double buffer is used for continuously sampling, which wlll be swapped once sampling has taken place.
A sample frequency is provided and will set the internal timer of the SAADC when there is just the one channel being sampled. Otherwise, PPI will be used to hook up the TIMER peripheral to drive the sampling task.
2021-10-18 10:26:11 +11:00
Dario Nieuwenhuis
c675fb1036
nrf/saadc: make InputChannel private.
2021-10-13 22:13:30 +02:00
Dario Nieuwenhuis
d8c3365d6a
nrf/saadc: make Input trait sealed.
2021-10-13 22:13:26 +02:00
Dario Nieuwenhuis
0d709fa5c8
nrf/saadc: require unborrow for Input.
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This allows using borrowed pins in ChannelConfig.
2021-10-13 22:06:09 +02:00
Dario Nieuwenhuis
14c3260d88
nrf/saadc: move chip-specific mappings to chips/
2021-10-11 01:36:31 +02:00
Dario Nieuwenhuis
668364da9c
nrf/saadc: nrf52805 only has 2 channels
2021-10-11 00:55:31 +02:00
huntc
8c9e50b378
Conflates the negative and positive types as they are the same, and renames pin to input as they can be more than pins
2021-10-11 09:38:35 +11:00
huntc
b043778f75
Removed the NotConnected as it isn't used.
2021-10-11 09:08:58 +11:00
huntc
25d6a2cd13
No use case understood for NotConnected, so hiding it for now
2021-10-11 08:56:53 +11:00
huntc
617a976e96
No need for unwrap
2021-10-11 08:54:24 +11:00
huntc
5f5470a320
Need to borrow the pins for the lifetime of the config, and subsequently the one shot.
2021-10-11 08:52:45 +11:00
huntc
cef6158c31
Extend SAADC one shot support
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One-shot mode now permits the sampling of differential pins, and the sampling of multiple pins simultaneously.
A new ChannelConfig structure has been introduced so that multiple channels can be configured individually. Further, the `sample` method now accepts a buffer into which samples are written.
Along the way, I've reset some default configuration to align with Nordic's settings in their nrfx saadc driver. Specifically, the channel gain defaults to 6 (from 4) and the time defaults to 10us (from 20us).
2021-10-09 11:25:18 +11:00
Dario Nieuwenhuis
0e05ba688d
nrf/saadc: remove Sample trait.
2021-10-07 02:10:22 +02:00
Dario Nieuwenhuis
ead987245d
embassy: Refactor module structure to remove kitchen-sink util.
2021-09-11 02:35:35 +02:00
Dario Nieuwenhuis
a81b963561
nrf/saadc: don't use wake_on_interrupt.
2021-09-01 23:54:26 +02:00
Dario Nieuwenhuis
7bfb763e09
Rename embassy-extras to embassy-hal-common
2021-07-29 13:44:51 +02:00
Dario Nieuwenhuis
55c3ba2a5f
nrf/saadc: do not use dyn
2021-05-22 15:42:14 +02:00
Ulf Lilleengen
13524080d3
Avoid using full GAT
2021-05-22 13:23:09 +02:00
Ulf Lilleengen
f6cac6944c
Makes it possible to use the ADC with different analog pins
2021-05-21 13:12:27 +02:00
Dario Nieuwenhuis
105c8504b6
Mark Unborrow as unsafe to implement
2021-05-19 23:29:33 +02:00
Dario Nieuwenhuis
e3ab02c7e3
nrf/saadc: remove Pin
2021-05-19 20:22:15 +02:00
Rukai
3e83acc1cb
Fix unused field warnings
2021-05-17 20:23:04 +10:00
Dario Nieuwenhuis
97ca54fa66
Rename PeripheralBorrow to Unborrow
2021-04-14 19:59:52 +02:00
Richard Dodd
53645d9d38
nrf/saadc: initial implementation
2021-03-29 00:58:58 +02:00
