9fd26627bb
Currently level interrupts are implemented using GPIO SENSE, but edge interrupts using GPIOTE events. Using GPIOTE events results in increased power consumption according to product specifications and erratas of some nRF MCUs. In case of nRF52832 it is <20uA in System ON Idle and ~400-450uA when used in conjunction with SPI or TWI. Add a user configurable option to select between GPIOTE events and GPIO SENSE mechanism, for implementing edge interrupts. Selecting GPIO SENSE option will allow to reduce power consumption in scenarios mentioned by nRF MCUs erratas. Additionally GPIO SENSE mechanism (as opposed to GPIOTE event) allows to detect state changes of pins configured as output. Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
63 lines
1.7 KiB
Plaintext
63 lines
1.7 KiB
Plaintext
# Copyright (c) 2018 Nordic Semiconductor ASA
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
|
|
menuconfig GPIO_NRFX
|
|
bool "nRF GPIO driver"
|
|
default y
|
|
depends on SOC_FAMILY_NRF
|
|
select NRFX_GPIOTE
|
|
help
|
|
Enable GPIO driver for nRF line of MCUs.
|
|
|
|
if GPIO_NRFX
|
|
|
|
config GPIO_NRF_INIT_PRIORITY
|
|
int "nRF GPIO initialization priority"
|
|
default 40
|
|
help
|
|
Initialization priority for nRF GPIO.
|
|
|
|
config GPIO_NRF_P0
|
|
bool "nRF GPIO Port P0"
|
|
depends on HAS_HW_NRF_GPIO0
|
|
default y
|
|
help
|
|
Enable nRF GPIO port P0 config options.
|
|
|
|
config GPIO_NRF_P1
|
|
bool "nRF GPIO Port P1"
|
|
depends on HAS_HW_NRF_GPIO1
|
|
default y
|
|
help
|
|
Enable nRF GPIO port P1 config options.
|
|
|
|
choice
|
|
prompt "nRF GPIO edge interrupts mechanism"
|
|
default GPIO_NRF_INT_EDGE_USING_GPIOTE
|
|
|
|
config GPIO_NRF_INT_EDGE_USING_GPIOTE
|
|
bool "Edge interrupts using GPIOTE"
|
|
help
|
|
Enable GPIO edge interrupts implementation using GPIOTE events.
|
|
|
|
config GPIO_NRF_INT_EDGE_USING_SENSE
|
|
bool "Edge interrupts using SENSE"
|
|
help
|
|
Enable GPIO edge interrupts implementation using GPIO SENSE, which is
|
|
a level interrupt mechanism. Conversion from level to edge interrupts
|
|
notification happens in GPIO driver, so it is transparent to GPIO
|
|
consumers after switching from GPIOTE mechanism.
|
|
|
|
Use this option as an alternative to GPIOTE event mechanism. According
|
|
to product specifications and erratas to some nRF MCUs, using GPIOTE
|
|
results in increased current consumption in System ON Idle and in
|
|
conjunction with SPI/TWI peripherals. Selecting this option allows to
|
|
reduce current for those cases.
|
|
|
|
Using this option additionally allows detecting state changes of pins
|
|
configured as output, which might be handy for some applications.
|
|
|
|
endchoice
|
|
|
|
endif # GPIO_NRFX
|