48 строки
966 Б
Go
48 строки
966 Б
Go
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// +build nrf
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package machine
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// #include "../runtime/runtime_nrf.h"
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import "C"
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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.P0_PIN_CNF_DIR_Input
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GPIO_OUTPUT = nrf.P0_PIN_CNF_DIR_Output
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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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func (p GPIO) Configure(config GPIOConfig) {
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//C.gpio_cfg(C.uint(p.Pin), C.gpio_mode_t(config.Mode))
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cfg := config.Mode | nrf.P0_PIN_CNF_PULL_Disabled | nrf.P0_PIN_CNF_DRIVE_S0S1 | nrf.P0_PIN_CNF_SENSE_Disabled
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if config.Mode == GPIO_INPUT {
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cfg |= nrf.P0_PIN_CNF_INPUT_Connect
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} else {
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cfg |= nrf.P0_PIN_CNF_INPUT_Disconnect
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}
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nrf.P0.PIN_CNF[p.Pin] = nrf.RegValue(cfg)
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}
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func (p GPIO) Set(high bool) {
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//C.gpio_set(C.uint(p.Pin), C.bool(value))
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// TODO: compiler limitation: both operands must be the same LLVM type
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if high {
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nrf.P0.OUTSET = 1 << uint32(p.Pin)
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} else {
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nrf.P0.OUTCLR = 1 << uint32(p.Pin)
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}
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}
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