GPIO
gpio.alias
Abbreviation
gp a
Access
get/set
Description
A GPIO alias name between 1-15 characters. GPIO name aliasing avoids the need to remember which GPIO is connected where. You can give the GPIO a recognisable name instead! Retrieve aliases with
get gp a all
. Remove an alias by setting to an empty double quoted string ("").
Arguments
<all> / <GPIO#> <alias name>
Default
Properties
- takes effect immediately
Gecko OS Kernel Plugin
Get example
> get gp a 6
R000008
MyGPIO
Set example
> set gp a 6 FrontDoor
R000008
Set OK
{*
gpio.init
Abbreviation
gp i
Access
get/set
Description
The initial direction and value of a GPIO after bootup/reset. Use the
all
option to retrieve a list of GPIOs and their current initialization settings.
Arguments
<all> / <GPIO#> <direction> <initial value>
Default
<none>
for unassigned GPIOs
Properties
Gecko OS Kernel Plugin
Get example
> get gp i 0
R000021
output_open_drain 1
Set example
> set gp i 0 out 1
R000008
Set OK
gpio.sleep
Abbreviation
gp s
Access
get/set
Description
Set the state of the specified GPIO when sleeping.
GPIOs are initialized is as follows:
- On startup, all unused pins (i.e. MCU pins not assigned a module GPIO) are set to the default state for the MCU
- Then module GPIOs are set to either their gpio.init value if specified, else the MCU default state
Arguments
<all> / <GPIO#> <state>
where state is one of the following:
| State | Description |
|---|---|
default
|
factory default state |
input_highz
|
input high impedance |
input_pull_down
|
input pull down |
input_pull_up
|
input pull up |
output_high
|
output high |
output_low
|
output low |
Default
default
Properties
Gecko OS Kernel Plugin
Get example
> get gp s 0
input_pull_up
Set example
> set gp s 0 output_low
Set OK
gpio.usage
Abbreviation
gp u
Access
get
Description
Returns information about which GPIOs have been registered for functions, and which have standard I/O options set. GPIOs may be de-registered by setting the GPIO to -1 using the appropriate variable. e.g. set ioconn.status_gpio -1. See Peripherals .
Arguments
-
Default
<platform dependent>
Gecko OS Kernel Plugin
Get example
> get gp u
! # Description
# 0 GPIO in
# 1 system.indicator.wlan
# 2 system.indicator.network
# 5 system.indicator.softap
# 11 setup.control_gpio
# 13 UART1 RX
# 14 UART1 TX
# 17 SPI0 CLK
# 18 SPI0 MOSI
# 19 SPI0 MISO
# 21 GPIO out
# 22 GPIO out