mirror of
https://github.com/tinygo-org/tinygo.git
synced 2026-08-04 02:57:46 +00:00
Ayke van Laethem
56 lines
1.3 KiB
Go
56 lines
1.3 KiB
Go
// +build nrf
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package machine
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import (
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"device/nrf"
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)
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type GPIOMode uint8
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const (
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GPIO_INPUT = (nrf.GPIO_PIN_CNF_DIR_Input << nrf.GPIO_PIN_CNF_DIR_Pos) | (nrf.GPIO_PIN_CNF_INPUT_Connect << nrf.GPIO_PIN_CNF_INPUT_Pos)
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GPIO_INPUT_PULLUP = GPIO_INPUT | (nrf.GPIO_PIN_CNF_PULL_Pullup << nrf.GPIO_PIN_CNF_PULL_Pos)
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GPIO_INPUT_PULLDOWN = GPIO_INPUT | (nrf.GPIO_PIN_CNF_PULL_Pulldown << nrf.GPIO_PIN_CNF_PULL_Pos)
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GPIO_OUTPUT = (nrf.GPIO_PIN_CNF_DIR_Output << nrf.GPIO_PIN_CNF_DIR_Pos) | (nrf.GPIO_PIN_CNF_INPUT_Disconnect << nrf.GPIO_PIN_CNF_INPUT_Pos)
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)
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// LEDs on the PCA10040 (nRF52832 dev board)
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const (
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LED = LED1
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LED1 = 17
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LED2 = 18
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LED3 = 19
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LED4 = 20
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)
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// Buttons on the PCA10040 (nRF52832 dev board)
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const (
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BUTTON = BUTTON1
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BUTTON1 = 13
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BUTTON2 = 14
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BUTTON3 = 15
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BUTTON4 = 16
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)
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// Configure this pin with the given configuration.
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func (p GPIO) Configure(config GPIOConfig) {
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cfg := config.Mode | nrf.GPIO_PIN_CNF_DRIVE_S0S1 | nrf.GPIO_PIN_CNF_SENSE_Disabled
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nrf.P0.PIN_CNF[p.Pin] = nrf.RegValue(cfg)
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}
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// Set the pin to high or low.
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// Warning: only use this on an output pin!
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func (p GPIO) Set(high bool) {
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if high {
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nrf.P0.OUTSET = 1 << p.Pin
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} else {
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nrf.P0.OUTCLR = 1 << p.Pin
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}
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}
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// Get returns the current value of a GPIO pin.
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func (p GPIO) Get() bool {
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return (nrf.P0.IN>>p.Pin)&1 != 0
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}
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