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ADC driver report back vref alone with sample count (#14136)

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* Introduce "px4_arch_adc_reference_v"

* Revert "Introduce "px4_arch_adc_reference_v""

This reverts commit 93691fbbd55a1b8da8c190e225b318067d90399b.

* use structure to return sample count and vref at the same time

* Revert "use structure to return sample count and vref at the same time"

This reverts commit 9cfd1c173cda51495f766a3f678c2202d67725fd.

* Revert "Revert "Introduce "px4_arch_adc_reference_v"""

This reverts commit edb7f7603e4471163ffb0fc6fc62ad2e30336e91.

* fix missed reference

* remove unecessary channel specific vref

* Update src/drivers/drv_adc.h

Co-Authored-By: David Sidrane <David.Sidrane@Nscdg.com>

* Update src/drivers/drv_adc.h

Co-Authored-By: David Sidrane <David.Sidrane@Nscdg.com>

* Introduce BOARD_ADC_POS_REF_V

Co-authored-by: David Sidrane <David.Sidrane@Nscdg.com>
This commit is contained in:
SalimTerryLi
2020-02-21 06:52:45 -08:00
committed by GitHub
co-authored by David Sidrane
parent e0d6f94318
commit 77a9135036
12 changed files with 54 additions and 1 deletions
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platforms/common/include/px4_platform_common/board_common.h
+4
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@@ -147,6 +147,10 @@
#define ADC_3V3_SCALE (2.0f) // The scale factor defined by HW's resistive divider (Rt+Rb)/ Rb
#endif
#ifndef BOARD_ADC_POS_REF_V
#define BOARD_ADC_POS_REF_V (3.3f) // Default reference voltage for every channels
#endif
#ifndef BOARD_ADC_POS_REF_V_FOR_CURRENT_CHAN
#define BOARD_ADC_POS_REF_V_FOR_CURRENT_CHAN (3.3f) // Reference voltage for reading out the current channel
#endif