Hi Charles,
welcome to AGL and thanks for posting. I've added a few remarks and pointers below:
we are currently implementing different applications using AGL to read values from typical powertrain related sensors and control powertrain actuators (EGR Valve, HFM Sensor, Lambda Sensor, Temperature / Pressure sensors, etc.).
We do currently expose data through VSS/VISS (https://www.w3.org/auto/wg/wiki/Vehicle_Signal_Specification_(VSS)/Vehicle_Data_Spec)
by the use of KUKSA.val . So we do feed data into KUKSA.val e.g. by CAN bus.
Using a feeder you can also add more sensors here.
We would like to be able to read values from SENT protocol based sensors as their use has become quite widespread in powertrain applications. So we would like to know if there is already any implementation of the SENT protocol within AGL?
As far as I can see there is no support in the Linux kernel atm. I found references for GPIO implementations (aka bit-banging) like here:
Now it depends if bit-banging in a user-space implementation would do it for the use cases you have or if you have very tight timing restrictions.
In the latter case there would be work to do to either enhance a user-space implementation with faster kernel interfaces or do a driver in the linux kernel right away. In any case, there is work to do.
AGL can be a home for a collaboration effort for your contributions and contributions for other interested parties.
We do have a weekly developer call - next one will be in January. Watch this space for updates:
https://lists.automotivelinux.org/g/agl-dev-community/calendar as the date might move a day.
Best regards,
Jan-Simon
------
Jan-Simon Möller
AGL Release Manager
The Linux Foundation
Visit us at:
www.automotivegradelinux.org
lists.automotivelinux.org
www.linuxfoundation.org
Jan-Simon
------
Jan-Simon Möller
AGL Release Manager
The Linux Foundation
Visit us at:
www.automotivegradelinux.org
lists.automotivelinux.org
www.linuxfoundation.org
On Tue, Dec 20, 2022 at 11:54 AM Carles Sole via lists.automotivelinux.org <Carles.SoleMendi=de.bosch.com@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
Hello all,
we are currently implementing different applications using AGL to read values from typical powertrain related sensors and control powertrain actuators (EGR Valve, HFM Sensor, Lambda Sensor, Temperature / Pressure sensors, etc.).
The HW relevant signals / protocols we are using so far:
- PWM, Spi, ADC, DAC, CAN.
We would like to be able to read values from SENT protocol based sensors as their use has become quite widespread in powertrain applications. So we would like to know if there is already any implementation of the SENT protocol within AGL?
Else we would try and implement it from scratch.
Best Regards,
Carles
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